From c908c4d3272b568547d37203e993d11144198097 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 7 Feb 2026 08:31:54 +0000
Subject: [PATCH 1/5] Initial plan


From b1e853047a1571f730224ba5de0b8dc07ea83ec5 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 7 Feb 2026 08:35:15 +0000
Subject: [PATCH 2/5] Add soldering station research and README overview

Co-authored-by: falkorichter <50506+falkorichter@users.noreply.github.com>
---
 README.md                                     |  18 ++
 .../soldering-station/soldering-station.md    | 230 ++++++++++++++++++
 2 files changed, 248 insertions(+)
 create mode 100644 research/soldering-station/soldering-station.md

diff --git a/README.md b/README.md
index 8b13789..516194c 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,19 @@
+# Workshop Research
 
+Research and documentation for workshop equipment, tools, and supplies.
+
+## Research Topics
+
+| Topic | Status | Link |
+|---|---|---|
+| 🔧 Soldering Station | ✅ Complete | [research/soldering-station/soldering-station.md](research/soldering-station/soldering-station.md) |
+
+## How to Use
+
+Each research topic has its own folder under `research/` with a detailed markdown document covering:
+
+- Requirements and background
+- Product comparisons with specifications
+- Pricing and availability
+- Pros/cons analysis
+- Recommendations
diff --git a/research/soldering-station/soldering-station.md b/research/soldering-station/soldering-station.md
new file mode 100644
index 0000000..7e2b3a5
--- /dev/null
+++ b/research/soldering-station/soldering-station.md
@@ -0,0 +1,230 @@
+# Soldering Station Research
+
+## Background
+
+We are a workshop that offers repairs and works on various projects. We currently use a member's **Aoyue 968A+** and appreciate:
+
+- **Hot air** capability (useful for shrink tubing and SMD rework)
+- **Fume extraction** built into the soldering iron
+- The convenience of an **all-in-one** unit
+
+This document compares several soldering station options across different price ranges.
+
+---
+
+## Quick Comparison
+
+| Feature | Preciva 992D+ | Aoyue 968A+ | AOYUE 2738A+ | Ersa i-CON VARIO 2 MK2 |
+|---|---|---|---|---|
+| **Type** | 2-in-1 | 3-in-1 | 3-in-1 | 2-in-1 (modular) |
+| **Soldering Iron** | ✅ 60 W | ✅ 70 W | ✅ 70 W | ✅ up to 150 W |
+| **Hot Air** | ✅ 750 W total | ✅ 500 W | ✅ 500 W | ✅ 200 W AIR TOOL |
+| **Fume Extraction** | ❌ | ✅ Built-in | ✅ Built-in | ⚠️ Separate (EASY ARM) |
+| **Temp Range (Iron)** | 200–480 °C | 200–480 °C | 200–480 °C | 150–450 °C |
+| **Temp Range (Hot Air)** | 100–480 °C | 100–480 °C | 100–480 °C | 100–480 °C |
+| **ESD Safe** | ✅ | ✅ | ✅ | ✅ |
+| **Price (approx.)** | ~€125–170 | ~€165–230 | ~€265–290 | ~€1,050–1,800+ |
+| **Best For** | Budget / Price-performance | Workshop all-rounder | Upgraded all-in-one | Professional / industrial |
+
+---
+
+## Option 1: Preciva 992D+ (Budget Pick 💰)
+
+> **2-in-1 — Soldering Iron + Hot Air Rework Station**
+
+| Spec | Value |
+|---|---|
+| Total Power | 750 W |
+| Soldering Iron | 60 W, 200–480 °C |
+| Hot Air | 100–480 °C, up to 120 L/min |
+| Display | LCD (temperature, airflow, mode) |
+| Motor | Brushless blower |
+| Nozzles included | 4 hot air nozzles, 5 soldering tips |
+| Fume Extraction | ❌ Not included |
+| ESD Safe | ✅ |
+| Sleep Mode | ✅ Programmable (0–99 min) |
+| Memory Presets | 3 channels per function |
+| Price | ~€125–170 |
+
+### Pros
+- Excellent **price-to-performance** ratio
+- Fast heat-up with PID temperature control (±1 °C)
+- Brushless fan = quiet and long-lasting
+- Comprehensive accessory kit included
+- Memory presets and sleep mode for convenience
+
+### Cons
+- **No fume extraction** — would need a separate unit
+- Airflow may not match high-end professional stations
+- Bulkier integrated design
+
+### Links
+- [Amazon.de](https://www.amazon.de/-/en/Preciva-Soldering-992D-Desoldering-Professional/dp/B0FP1TBD5K)
+- [Idealo Price Comparison](https://www.idealo.de/preisvergleich/OffersOfProduct/204145592_-profi-2-992d-preciva.html)
+
+---
+
+## Option 2: Aoyue 968A+ (Current Station / Workshop Favorite ⭐)
+
+> **3-in-1 — Soldering Iron + Hot Air + Fume Extraction**
+
+| Spec | Value |
+|---|---|
+| Hot Air Power | 500 W |
+| Soldering Iron | 70 W, 200–480 °C, ceramic heater |
+| Hot Air | 100–480 °C, up to 23 L/min |
+| Air Source | Diaphragm pump |
+| Fume Extraction | ✅ Built-in smoke absorber |
+| ESD Safe | ✅ (tip-to-ground < 2 Ω) |
+| Sleep Mode | ✅ Adjustable |
+| Calibration | ✅ Digital (±50 °C offset) |
+| Nozzle Support | 50+ nozzle types |
+| Weight | ~5.25 kg |
+| Price | ~€165–230 |
+
+### Pros
+- **3-in-1** with built-in fume extraction — exactly what we need
+- Digital temperature control and calibration
+- Auto cool-down for safety
+- Wide range of compatible nozzles and tips
+- Good balance of features and price
+
+### Cons
+- Diaphragm pump can be **noisy**
+- Manual could be clearer for beginners
+- Build quality decent but not premium
+
+### Links
+- [Aoyue Official Product Page](https://aoyue3d.com/en/pro/default.asp?id=16)
+- [Welectron (€165)](https://www.welectron.com/AOYUE-INT-968A-All-in-One-Rework-Station)
+- [eBay.de](https://www.ebay.de/itm/387021105962)
+- [PCB Tool Expert Review](https://pcbtoolexpert.com/aoyue-968asmd-digital-hot-air-rework-station/)
+
+---
+
+## Option 3: AOYUE 2738A+ (Upgraded All-in-One 🔧)
+
+> **3-in-1 — Soldering Iron + Hot Air + Fume Extraction (bigger brother of 968A+)**
+
+| Spec | Value |
+|---|---|
+| Hot Air Power | 500 W |
+| Soldering Iron | 70 W, 200–480 °C, ceramic heater |
+| Hot Air | 100–480 °C, up to 23 L/min, diaphragm pump |
+| Fume Extraction | ✅ Built-in (600 mm Hg vacuum) |
+| ESD Safe | ✅ |
+| Lead-Free Compatible | ✅ |
+| Display | Digital (all parameters) |
+| Auto Standby | ✅ Programmable |
+| Weight | ~6–6.5 kg |
+| Dimensions | 188 × 126 × 250 mm |
+| Price | ~€265–290 |
+
+### Pros
+- **Stronger fume extraction** (600 mm Hg vacuum pressure)
+- All the benefits of the 968A+ in an upgraded package
+- Microprocessor-controlled with digital display
+- Compatible with Hakko T12 / WQ Series tips
+- Programmable standby and auto cooling
+
+### Cons
+- ~€100 more than the 968A+
+- Similar noise characteristics (diaphragm pump)
+- Slightly heavier
+
+### Links
+- [Amazon.de (€269)](https://www.amazon.de/-/en/INT2738-SOLDER-SOLDERING-Repair-Station/dp/B0765W43KN)
+- [eBay.de (€289)](https://www.ebay.de/itm/162748647088)
+- [GsmServer Product Page](https://gsmserver.com/en/hot-air-soldering-station-aoyue-2738aplus/)
+- [ToolBoom](https://toolboom.com/en/hot-air-soldering-station-aoyue-2738aplus/)
+- [Verpackungsgeräte.de](https://www.verpackungsgerate.de/detail/loten/hei-luftstationen/kombi-lotstation-2738a-mit-absaugung.html)
+- [Manual (ManualsLib)](https://www.manualslib.com/manual/1060634/Aoyue-2738.html)
+
+---
+
+## Option 4: Ersa i-CON VARIO 2 MK2 (Professional Grade 🏭)
+
+> **2-in-1 Modular — Soldering + Hot Air (fume extraction separate)**
+
+| Spec | Value |
+|---|---|
+| Channels | 2 (expandable) |
+| Soldering Power | up to 150 W |
+| Hot Air | 200 W AIR TOOL, 100–480 °C |
+| Fume Extraction | ⚠️ Separate EASY ARM unit required |
+| ESD Safe | ✅ |
+| Auto Standby | ✅ |
+| Firmware Updates | ✅ via microSD |
+| Tip Compatibility | i-TOOL, CHIP TOOL VARIO, X-TOOL VARIO |
+| Price (station only) | ~€1,050–1,400 |
+| Price (with tools) | ~€1,400–1,800+ |
+| Fume Extraction Add-on | EASY ARM 1 (~€200–350 extra) |
+
+### Pros
+- **Professional German quality** (Ersa / Kurtz Group)
+- Modular: can expand to 4 channels (VARIO 4 MK2)
+- Extremely precise temperature control
+- Automatic fume extraction control (when paired with EASY ARM)
+- Industry-standard for professional repair shops
+
+### Cons
+- **Significantly more expensive** (5–10× the budget options)
+- Fume extraction is a **separate purchase**
+- May be overkill for a community workshop
+- Larger investment in tips and accessories
+
+### Links
+- [Ersa Shop](https://www.ersa-shop.com/en/produkt/vario2-mk2-esd-2-kanal-loet-heissluftstation-mit-air-tool-200w-auto-standby/)
+- [Reichelt Elektronik](https://www.reichelt.de/de/de/shop/produkt/loetstation_i-con_vario_2_mk_2_200_w_2_kanaele_esd-378879)
+- [Amazon.de](https://www.amazon.de/Mehrkanal-Multifunktions-L%C3%B6tstation-Hei%C3%9Fluftspitze-Entl%C3%B6tspitze-0ICV2005AC/dp/B0CK4PFJS5)
+- [Geizhals Price Comparison](https://geizhals.de/ersa-i-con-vario-2-mk2-digitale-loetstation-v184948.html)
+
+---
+
+## Recommendation
+
+### For our workshop, the best options are:
+
+```
+                    ┌─────────────────────────────────────────────────┐
+                    │             DECISION GUIDE                      │
+                    └─────────────────────────────────────────────────┘
+
+    Budget tight?─────────YES────▶  Preciva 992D+ (~€130)
+         │                          + separate fume extractor
+         NO
+         │
+    Need fume extraction ─YES───▶  AOYUE 968A+ (~€200)  ◀── SAME AS CURRENT
+    built-in?                      or AOYUE 2738A+ (~€270) for upgrade
+         │
+         NO
+         │
+    Professional /────────YES───▶  Ersa i-CON VARIO 2 MK2 (~€1,200+)
+    industrial use?                + EASY ARM fume extraction
+```
+
+### 🏆 Top Pick: **AOYUE 2738A+** (~€265–290)
+
+The AOYUE 2738A+ is the recommended choice for our workshop because:
+
+1. ✅ **3-in-1** — soldering, hot air, and fume extraction in one unit
+2. ✅ **Stronger fume extraction** than the 968A+ we currently use
+3. ✅ **Familiar ecosystem** — same brand, similar interface to our current 968A+
+4. ✅ **Compatible tips** — works with widely available Hakko T12 tips
+5. ✅ **Reasonable price** — only ~€100 more than the 968A+
+
+### 🥈 Runner-up: **Aoyue 968A+** (~€165–230)
+
+If we want to simply **replace the current station** with the same model, the 968A+ is a proven choice that meets all our requirements at a lower price.
+
+### 💰 Budget alternative: **Preciva 992D+** (~€125–170)
+
+Best price-performance ratio, but requires a **separate fume extraction** solution.
+
+---
+
+## Additional Resources
+
+- [AOYUE Full Product Range](https://www.aoyue3d.com/en/products/?sort_id=109)
+- [AOYUE Rework Stations Overview](https://www.aoyue3d.com/en/pro/default.asp?id=99)
+- [Ersa Soldering Tools & Stations](https://kurtzersa.com/products/electronics-production/soldering-tools-accessories)

From 6bd306ecfcf8db52004bef13e718f05f65b7bc8c Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 10 Feb 2026 06:29:02 +0000
Subject: [PATCH 3/5] Add USB-C portable soldering iron option with DIY fume
 extraction

Co-authored-by: falkorichter <50506+falkorichter@users.noreply.github.com>
---
 .../soldering-station/soldering-station.md    | 130 ++++++++++++++++--
 1 file changed, 119 insertions(+), 11 deletions(-)

diff --git a/research/soldering-station/soldering-station.md b/research/soldering-station/soldering-station.md
index 7e2b3a5..1c2ec3c 100644
--- a/research/soldering-station/soldering-station.md
+++ b/research/soldering-station/soldering-station.md
@@ -14,17 +14,17 @@ This document compares several soldering station options across different price
 
 ## Quick Comparison
 
-| Feature | Preciva 992D+ | Aoyue 968A+ | AOYUE 2738A+ | Ersa i-CON VARIO 2 MK2 |
-|---|---|---|---|---|
-| **Type** | 2-in-1 | 3-in-1 | 3-in-1 | 2-in-1 (modular) |
-| **Soldering Iron** | ✅ 60 W | ✅ 70 W | ✅ 70 W | ✅ up to 150 W |
-| **Hot Air** | ✅ 750 W total | ✅ 500 W | ✅ 500 W | ✅ 200 W AIR TOOL |
-| **Fume Extraction** | ❌ | ✅ Built-in | ✅ Built-in | ⚠️ Separate (EASY ARM) |
-| **Temp Range (Iron)** | 200–480 °C | 200–480 °C | 200–480 °C | 150–450 °C |
-| **Temp Range (Hot Air)** | 100–480 °C | 100–480 °C | 100–480 °C | 100–480 °C |
-| **ESD Safe** | ✅ | ✅ | ✅ | ✅ |
-| **Price (approx.)** | ~€125–170 | ~€165–230 | ~€265–290 | ~€1,050–1,800+ |
-| **Best For** | Budget / Price-performance | Workshop all-rounder | Upgraded all-in-one | Professional / industrial |
+| Feature | Preciva 992D+ | Aoyue 968A+ | AOYUE 2738A+ | Ersa i-CON VARIO 2 MK2 | USB-C Portable Setup |
+|---|---|---|---|---|---|
+| **Type** | 2-in-1 | 3-in-1 | 3-in-1 | 2-in-1 (modular) | Modular / DIY |
+| **Soldering Iron** | ✅ 60 W | ✅ 70 W | ✅ 70 W | ✅ up to 150 W | ✅ 88–100 W |
+| **Hot Air** | ✅ 750 W total | ✅ 500 W | ✅ 500 W | ✅ 200 W AIR TOOL | ❌ Separate needed |
+| **Fume Extraction** | ❌ | ✅ Built-in | ✅ Built-in | ⚠️ Separate (EASY ARM) | ⚠️ DIY (see below) |
+| **Temp Range (Iron)** | 200–480 °C | 200–480 °C | 200–480 °C | 150–450 °C | 100–450 °C |
+| **Temp Range (Hot Air)** | 100–480 °C | 100–480 °C | 100–480 °C | 100–480 °C | N/A |
+| **ESD Safe** | ✅ | ✅ | ✅ | ✅ | ✅ |
+| **Price (approx.)** | ~€125–170 | ~€165–230 | ~€265–290 | ~€1,050–1,800+ | ~€40–100 + DIY fume |
+| **Best For** | Budget / Price-performance | Workshop all-rounder | Upgraded all-in-one | Professional / industrial | Portable / USB-C powered |
 
 ---
 
@@ -181,6 +181,105 @@ This document compares several soldering station options across different price
 
 ---
 
+## Option 5: USB-C Portable Soldering Iron + DIY Fume Extraction (Portable / Maker Pick 🔌)
+
+> **Modular approach — USB-C PD soldering iron + self-built fume extractor**
+
+This option uses a high-wattage USB-C Power Delivery soldering iron paired with a DIY fume extraction setup. It's highly portable, flexible, and fits the USB-C power ecosystem we want in the workshop — **for USB-C powered, more wattage is better**.
+
+### USB-C Soldering Iron Comparison
+
+| Feature | Pinecil v2 | FNIRSI HS-02A | Miniware TS101 |
+|---|---|---|---|
+| **Max Wattage** | 88 W | 100 W | 65–70 W |
+| **USB-C PD** | ✅ | ✅ | ✅ |
+| **DC Input** | ✅ | ✅ | ✅ (QC 3.0 too) |
+| **Temp Range** | 100–450 °C | 100–450 °C | 100–400 °C |
+| **Heat-up Time** | ~12 sec | ~3 sec | ~11 sec |
+| **Display** | OLED | 0.96″ IPS color | OLED |
+| **Firmware** | Open-source (IronOS) | Proprietary | Proprietary |
+| **Build** | Lightweight | All-metal, robust | Compact, premium feel |
+| **Tips** | TS100/TS101 compatible | 6 tips included | TS100 compatible |
+| **Price (EU)** | ~€52–90 | ~€40–155 | ~€60–80 |
+
+#### 🏆 Top USB-C Pick: **FNIRSI HS-02A** (100 W)
+
+- Highest wattage available (100 W via USB-C PD)
+- 3-second heat-up — fastest in class
+- All-metal construction for durability
+- Complete kit with 6 tips and carry case
+- Price: ~€40 (eHaJo/AliExpress) to ~€75 (Eleshop EU)
+
+#### 🥈 Runner-up: **Pinecil v2** (88 W)
+
+- Open-source firmware (IronOS) — highly customizable
+- Active community, Bluetooth support
+- Best value at ~€52–66 from EU shops
+- Wide tip ecosystem (TS100/TS101 compatible)
+
+#### Where to buy
+
+| Iron | Shop | Price | Link |
+|---|---|---|---|
+| Pinecil v2 | PINE64 EU Store | €66 | [pine64eu.com](https://pine64eu.com/product/pinecil-smart-mini-portable-soldering-iron/) |
+| Pinecil v2 | Eleshop.de | €52 | [eleshop.de](https://eleshop.de/pinecil-smart-mini-tragbarer-lotkolben.html) |
+| Pinecil v2 | BlinkyParts | €59 | [blinkyparts.com](https://shop.blinkyparts.com/de/Pinecil-v2-Tragbarer-88W-USB-C-Loetkolben-Open-Source-blitzschnell/blink235342) |
+| FNIRSI HS-02A | eHaJo (DE) | €40 | [ehajo.de](https://www.ehajo.de/en/products/fnirsi-hs-02a) |
+| FNIRSI HS-02A | Eleshop.eu | €75 | [eleshop.eu](https://eleshop.eu/fnirsi-hs-02a-soldering-iron-toolbox-kit.html) |
+| TS101 | Amazon.de | ~€70 | [amazon.de](https://www.amazon.de/-/en/dp/B09B3XGWJG) |
+
+### DIY Fume Extraction Setup
+
+Since USB-C soldering irons don't include built-in fume extraction, here's how to build one cheaply:
+
+#### Materials (~€15–30 total)
+
+| Part | Example | Cost |
+|---|---|---|
+| 120mm PC fan (USB or 12V) | Any 120mm case fan | ~€5–10 |
+| Activated carbon filter sheet | Kitchen hood filter or soldering filter | ~€5–10 |
+| Enclosure | 3D-printed / cardboard box / plastic container | ~€0–10 |
+| USB cable or 12V adapter | Match to fan | ~€3–5 |
+| Optional: switch, magnets, grill | For convenience | ~€2–5 |
+
+#### Ready-made Designs (3D-printable)
+
+- [**Ultimate 120mm Fume Extractor**](https://www.printables.com/model/484072-ultimate-120mm-soldering-fume-extractor-with-usb-p) — USB-C PD port, DC power hub, magnetic hood, voltage display
+- [**Adafruit Mini Fume Extractor**](https://learn.adafruit.com/simple-mini-fume-extractor/overview) — USB-powered, small footprint, 3D-printable
+- [**DIY Fume Extractor (Hackaday.io)**](https://hackaday.io/project/203315-diy-soldering-fume-extractor) — Loc-Line arm mount, HEPA + carbon filter
+
+#### Guides
+
+- [iFixit: How to Make an Affordable Soldering Fume Extractor](https://www.ifixit.com/Guide/How+to+Make+an+Affordable+Soldering+Fume+Extractor/170836) — simplest build with cardboard and PC fan
+- [Electromaker: DIY Fume Extractor with HEPA & Carbon Filter](https://www.electromaker.io/project/view/diy-fume-extractor-with-hepa-amp-carbon-filter) — more advanced with HEPA
+
+### Inspiration: Solderbot Portable Workstation
+
+The [**Solderbot** ($109, Kickstarter by Omaxs)](https://www.hackster.io/news/this-109-portable-workstation-replaces-a-desk-full-of-electronics-gear-84fafd818560) is a briefcase-sized portable workstation that integrates 18 tools including:
+
+- USB-C powered soldering iron (2-second heat-up, 230–450 °C)
+- Built-in fume extractor
+- LED light & magnifier (20–40×)
+- Magnetic clamps, wire strippers, extra tips
+- All powered from a single USB-C connection
+
+> **Note:** Solderbot is a Kickstarter project (shipping expected September 2026) — not yet available for purchase. Listed here as a reference for the direction USB-C portable workstations are heading.
+
+### Pros
+- **Ultra-portable** — take it anywhere, power from any USB-C PD charger or power bank
+- **Low cost** for the iron itself (~€40–90)
+- **High wattage** (up to 100 W) — competitive with traditional stations
+- Fits the **USB-C ecosystem** goal for the workshop
+- **Customizable** — choose your own fume extraction, tips, and accessories
+
+### Cons
+- **No hot air** — would need a separate hot air gun
+- **No built-in fume extraction** — requires DIY or separate unit
+- DIY fume extraction requires some assembly
+- Needs a **good USB-C PD power supply** (65 W+ recommended, 100 W ideal)
+
+---
+
 ## Recommendation
 
 ### For our workshop, the best options are:
@@ -190,6 +289,11 @@ This document compares several soldering station options across different price
                     │             DECISION GUIDE                      │
                     └─────────────────────────────────────────────────┘
 
+    Portable / USB-C ─────YES───▶  USB-C Iron (~€40–90)
+    powered?                       + DIY fume extractor (~€15–30)
+         │                         (FNIRSI HS-02A or Pinecil v2)
+         NO
+         │
     Budget tight?─────────YES────▶  Preciva 992D+ (~€130)
          │                          + separate fume extractor
          NO
@@ -221,6 +325,10 @@ If we want to simply **replace the current station** with the same model, the 96
 
 Best price-performance ratio, but requires a **separate fume extraction** solution.
 
+### 🔌 Portable USB-C pick: **FNIRSI HS-02A** (~€40–75) + DIY fume extractor (~€15–30)
+
+Maximum portability and USB-C power ecosystem fit. 100 W via USB-C PD, 3-second heat-up. Pair with a self-built fume extractor (120mm fan + carbon filter) for a complete setup under €100. Great for on-the-go repairs and as a secondary iron for the workshop.
+
 ---
 
 ## Additional Resources

From c8e2d585c2b18a982a91fdd429450949c4068dc8 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 9 Mar 2026 11:29:18 +0000
Subject: [PATCH 4/5] Add German translation of soldering station research
 (loetstation.md)

Co-authored-by: falkorichter <50506+falkorichter@users.noreply.github.com>
---
 README.md                                 |   2 +-
 research/soldering-station/loetstation.md | 338 ++++++++++++++++++++++
 2 files changed, 339 insertions(+), 1 deletion(-)
 create mode 100644 research/soldering-station/loetstation.md

diff --git a/README.md b/README.md
index 516194c..b221d9f 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Research and documentation for workshop equipment, tools, and supplies.
 
 | Topic | Status | Link |
 |---|---|---|
-| 🔧 Soldering Station | ✅ Complete | [research/soldering-station/soldering-station.md](research/soldering-station/soldering-station.md) |
+| 🔧 Soldering Station | ✅ Complete | [English](research/soldering-station/soldering-station.md) · [Deutsch](research/soldering-station/loetstation.md) |
 
 ## How to Use
 
diff --git a/research/soldering-station/loetstation.md b/research/soldering-station/loetstation.md
new file mode 100644
index 0000000..fb17781
--- /dev/null
+++ b/research/soldering-station/loetstation.md
@@ -0,0 +1,338 @@
+# Lötstation – Recherche
+
+## Hintergrund
+
+Wir sind eine Werkstatt, die Reparaturen anbietet und an verschiedenen Projekten arbeitet. Aktuell nutzen wir die **Aoyue 968A+** eines Mitglieds und schätzen:
+
+- **Heißluft**-Funktion (nützlich für Schrumpfschlauch und SMD-Nacharbeit)
+- **Lötrauchabsaugung** direkt am Lötkolben
+- Den Komfort eines **All-in-One**-Geräts
+
+Dieses Dokument vergleicht verschiedene Lötstationen in unterschiedlichen Preisklassen.
+
+---
+
+## Schnellvergleich
+
+| Merkmal | Preciva 992D+ | Aoyue 968A+ | AOYUE 2738A+ | Ersa i-CON VARIO 2 MK2 | USB-C Portabel |
+|---|---|---|---|---|---|
+| **Typ** | 2-in-1 | 3-in-1 | 3-in-1 | 2-in-1 (modular) | Modular / DIY |
+| **Lötkolben** | ✅ 60 W | ✅ 70 W | ✅ 70 W | ✅ bis 150 W | ✅ 88–100 W |
+| **Heißluft** | ✅ 750 W gesamt | ✅ 500 W | ✅ 500 W | ✅ 200 W AIR TOOL | ❌ Separat nötig |
+| **Rauchabsaugung** | ❌ | ✅ Integriert | ✅ Integriert | ⚠️ Separat (EASY ARM) | ⚠️ DIY (siehe unten) |
+| **Temp.-Bereich (Kolben)** | 200–480 °C | 200–480 °C | 200–480 °C | 150–450 °C | 100–450 °C |
+| **Temp.-Bereich (Heißluft)** | 100–480 °C | 100–480 °C | 100–480 °C | 100–480 °C | N/A |
+| **ESD-sicher** | ✅ | ✅ | ✅ | ✅ | ✅ |
+| **Preis (ca.)** | ~€125–170 | ~€165–230 | ~€265–290 | ~€1.050–1.800+ | ~€40–100 + DIY Absaugung |
+| **Ideal für** | Budget / Preis-Leistung | Werkstatt-Allrounder | Upgrade All-in-One | Professionell / industriell | Portabel / USB-C betrieben |
+
+---
+
+## Option 1: Preciva 992D+ (Budget-Tipp 💰)
+
+> **2-in-1 — Lötkolben + Heißluft-Rework-Station**
+
+| Spezifikation | Wert |
+|---|---|
+| Gesamtleistung | 750 W |
+| Lötkolben | 60 W, 200–480 °C |
+| Heißluft | 100–480 °C, bis zu 120 L/min |
+| Display | LCD (Temperatur, Luftstrom, Modus) |
+| Motor | Bürstenloser Lüfter |
+| Düsen im Lieferumfang | 4 Heißluftdüsen, 5 Lötspitzen |
+| Rauchabsaugung | ❌ Nicht enthalten |
+| ESD-sicher | ✅ |
+| Schlafmodus | ✅ Programmierbar (0–99 min) |
+| Speicher-Presets | 3 Kanäle pro Funktion |
+| Preis | ~€125–170 |
+
+### Vorteile
+- Ausgezeichnetes **Preis-Leistungs-Verhältnis**
+- Schnelles Aufheizen mit PID-Temperaturregelung (±1 °C)
+- Bürstenloser Lüfter = leise und langlebig
+- Umfangreiches Zubehörpaket enthalten
+- Speicher-Presets und Schlafmodus für Komfort
+
+### Nachteile
+- **Keine Rauchabsaugung** — separates Gerät nötig
+- Luftstrom möglicherweise schwächer als bei High-End-Stationen
+- Größeres, integriertes Design
+
+### Links
+- [Amazon.de](https://www.amazon.de/-/en/Preciva-Soldering-992D-Desoldering-Professional/dp/B0FP1TBD5K)
+- [Idealo Preisvergleich](https://www.idealo.de/preisvergleich/OffersOfProduct/204145592_-profi-2-992d-preciva.html)
+
+---
+
+## Option 2: Aoyue 968A+ (Aktuelle Station / Werkstatt-Favorit ⭐)
+
+> **3-in-1 — Lötkolben + Heißluft + Rauchabsaugung**
+
+| Spezifikation | Wert |
+|---|---|
+| Heißluft-Leistung | 500 W |
+| Lötkolben | 70 W, 200–480 °C, Keramik-Heizelement |
+| Heißluft | 100–480 °C, bis zu 23 L/min |
+| Luftquelle | Membranpumpe |
+| Rauchabsaugung | ✅ Integrierter Rauchabsorber |
+| ESD-sicher | ✅ (Spitze-zu-Masse < 2 Ω) |
+| Schlafmodus | ✅ Einstellbar |
+| Kalibrierung | ✅ Digital (±50 °C Offset) |
+| Düsen-Unterstützung | 50+ Düsentypen |
+| Gewicht | ~5,25 kg |
+| Preis | ~€165–230 |
+
+### Vorteile
+- **3-in-1** mit integrierter Rauchabsaugung — genau was wir brauchen
+- Digitale Temperaturregelung und Kalibrierung
+- Automatische Abkühlung für Sicherheit
+- Große Auswahl an kompatiblen Düsen und Spitzen
+- Gute Balance zwischen Funktionen und Preis
+
+### Nachteile
+- Membranpumpe kann **laut** sein
+- Anleitung könnte für Anfänger klarer sein
+- Verarbeitung ordentlich, aber nicht Premium
+
+### Links
+- [Aoyue Offizielle Produktseite](https://aoyue3d.com/en/pro/default.asp?id=16)
+- [Welectron (€165)](https://www.welectron.com/AOYUE-INT-968A-All-in-One-Rework-Station)
+- [eBay.de](https://www.ebay.de/itm/387021105962)
+- [PCB Tool Expert Review](https://pcbtoolexpert.com/aoyue-968asmd-digital-hot-air-rework-station/)
+
+---
+
+## Option 3: AOYUE 2738A+ (Upgrade All-in-One 🔧)
+
+> **3-in-1 — Lötkolben + Heißluft + Rauchabsaugung (großer Bruder der 968A+)**
+
+| Spezifikation | Wert |
+|---|---|
+| Heißluft-Leistung | 500 W |
+| Lötkolben | 70 W, 200–480 °C, Keramik-Heizelement |
+| Heißluft | 100–480 °C, bis zu 23 L/min, Membranpumpe |
+| Rauchabsaugung | ✅ Integriert (600 mm Hg Vakuum) |
+| ESD-sicher | ✅ |
+| Bleifrei-kompatibel | ✅ |
+| Display | Digital (alle Parameter) |
+| Auto-Standby | ✅ Programmierbar |
+| Gewicht | ~6–6,5 kg |
+| Abmessungen | 188 × 126 × 250 mm |
+| Preis | ~€265–290 |
+
+### Vorteile
+- **Stärkere Rauchabsaugung** (600 mm Hg Vakuumdruck)
+- Alle Vorteile der 968A+ in einem aufgewerteten Paket
+- Mikroprozessor-gesteuert mit digitalem Display
+- Kompatibel mit Hakko T12 / WQ-Serie Spitzen
+- Programmierbarer Standby und automatische Abkühlung
+
+### Nachteile
+- ~€100 teurer als die 968A+
+- Ähnliche Lautstärke (Membranpumpe)
+- Etwas schwerer
+
+### Links
+- [Amazon.de (€269)](https://www.amazon.de/-/en/INT2738-SOLDER-SOLDERING-Repair-Station/dp/B0765W43KN)
+- [eBay.de (€289)](https://www.ebay.de/itm/162748647088)
+- [GsmServer Produktseite](https://gsmserver.com/en/hot-air-soldering-station-aoyue-2738aplus/)
+- [ToolBoom](https://toolboom.com/en/hot-air-soldering-station-aoyue-2738aplus/)
+- [Verpackungsgeräte.de](https://www.verpackungsgerate.de/detail/loten/hei-luftstationen/kombi-lotstation-2738a-mit-absaugung.html)
+- [Handbuch (ManualsLib)](https://www.manualslib.com/manual/1060634/Aoyue-2738.html)
+
+---
+
+## Option 4: Ersa i-CON VARIO 2 MK2 (Profi-Klasse 🏭)
+
+> **2-in-1 Modular — Löten + Heißluft (Rauchabsaugung separat)**
+
+| Spezifikation | Wert |
+|---|---|
+| Kanäle | 2 (erweiterbar) |
+| Lötleistung | bis zu 150 W |
+| Heißluft | 200 W AIR TOOL, 100–480 °C |
+| Rauchabsaugung | ⚠️ Separates EASY ARM Gerät erforderlich |
+| ESD-sicher | ✅ |
+| Auto-Standby | ✅ |
+| Firmware-Updates | ✅ über microSD |
+| Spitzen-Kompatibilität | i-TOOL, CHIP TOOL VARIO, X-TOOL VARIO |
+| Preis (nur Station) | ~€1.050–1.400 |
+| Preis (mit Werkzeugen) | ~€1.400–1.800+ |
+| Rauchabsaugung Zubehör | EASY ARM 1 (~€200–350 extra) |
+
+### Vorteile
+- **Professionelle deutsche Qualität** (Ersa / Kurtz Group)
+- Modular: erweiterbar auf 4 Kanäle (VARIO 4 MK2)
+- Äußerst präzise Temperaturregelung
+- Automatische Rauchabsaugungssteuerung (mit EASY ARM)
+- Industriestandard für professionelle Reparaturwerkstätten
+
+### Nachteile
+- **Deutlich teurer** (5–10× der Budget-Optionen)
+- Rauchabsaugung ist ein **separater Kauf**
+- Möglicherweise überdimensioniert für eine Community-Werkstatt
+- Größere Investition in Spitzen und Zubehör
+
+### Links
+- [Ersa Shop](https://www.ersa-shop.com/en/produkt/vario2-mk2-esd-2-kanal-loet-heissluftstation-mit-air-tool-200w-auto-standby/)
+- [Reichelt Elektronik](https://www.reichelt.de/de/de/shop/produkt/loetstation_i-con_vario_2_mk_2_200_w_2_kanaele_esd-378879)
+- [Amazon.de](https://www.amazon.de/Mehrkanal-Multifunktions-L%C3%B6tstation-Hei%C3%9Fluftspitze-Entl%C3%B6tspitze-0ICV2005AC/dp/B0CK4PFJS5)
+- [Geizhals Preisvergleich](https://geizhals.de/ersa-i-con-vario-2-mk2-digitale-loetstation-v184948.html)
+
+---
+
+## Option 5: USB-C Portabler Lötkolben + DIY-Rauchabsaugung (Portabel / Maker-Tipp 🔌)
+
+> **Modularer Ansatz — USB-C PD Lötkolben + selbstgebaute Rauchabsaugung**
+
+Diese Option nutzt einen leistungsstarken USB-C Power Delivery Lötkolben kombiniert mit einer selbstgebauten Rauchabsaugung. Hochgradig portabel, flexibel und passend zum USB-C-Ökosystem unserer Werkstatt — **bei USB-C gilt: mehr Leistung ist besser**.
+
+### USB-C Lötkolben im Vergleich
+
+| Merkmal | Pinecil v2 | FNIRSI HS-02A | Miniware TS101 |
+|---|---|---|---|
+| **Max. Leistung** | 88 W | 100 W | 65–70 W |
+| **USB-C PD** | ✅ | ✅ | ✅ |
+| **DC-Eingang** | ✅ | ✅ | ✅ (QC 3.0 auch) |
+| **Temp.-Bereich** | 100–450 °C | 100–450 °C | 100–400 °C |
+| **Aufheizzeit** | ~12 Sek. | ~3 Sek. | ~11 Sek. |
+| **Display** | OLED | 0,96″ IPS Farbe | OLED |
+| **Firmware** | Open-Source (IronOS) | Proprietär | Proprietär |
+| **Bauweise** | Leicht | Ganzmetall, robust | Kompakt, hochwertig |
+| **Spitzen** | TS100/TS101 kompatibel | 6 Spitzen enthalten | TS100 kompatibel |
+| **Preis (EU)** | ~€52–90 | ~€40–155 | ~€60–80 |
+
+#### 🏆 Top USB-C Empfehlung: **FNIRSI HS-02A** (100 W)
+
+- Höchste verfügbare Leistung (100 W über USB-C PD)
+- 3 Sekunden Aufheizzeit — schnellster in der Klasse
+- Ganzmetall-Bauweise für Langlebigkeit
+- Komplettpaket mit 6 Spitzen und Transportkoffer
+- Preis: ~€40 (eHaJo/AliExpress) bis ~€75 (Eleshop EU)
+
+#### 🥈 Zweitplatziert: **Pinecil v2** (88 W)
+
+- Open-Source-Firmware (IronOS) — sehr anpassbar
+- Aktive Community, Bluetooth-Unterstützung
+- Bestes Preis-Leistungs-Verhältnis ab ~€52–66 aus EU-Shops
+- Breites Spitzen-Ökosystem (TS100/TS101 kompatibel)
+
+#### Bezugsquellen
+
+| Lötkolben | Shop | Preis | Link |
+|---|---|---|---|
+| Pinecil v2 | PINE64 EU Store | €66 | [pine64eu.com](https://pine64eu.com/product/pinecil-smart-mini-portable-soldering-iron/) |
+| Pinecil v2 | Eleshop.de | €52 | [eleshop.de](https://eleshop.de/pinecil-smart-mini-tragbarer-lotkolben.html) |
+| Pinecil v2 | BlinkyParts | €59 | [blinkyparts.com](https://shop.blinkyparts.com/de/Pinecil-v2-Tragbarer-88W-USB-C-Loetkolben-Open-Source-blitzschnell/blink235342) |
+| FNIRSI HS-02A | eHaJo (DE) | €40 | [ehajo.de](https://www.ehajo.de/en/products/fnirsi-hs-02a) |
+| FNIRSI HS-02A | Eleshop.eu | €75 | [eleshop.eu](https://eleshop.eu/fnirsi-hs-02a-soldering-iron-toolbox-kit.html) |
+| TS101 | Amazon.de | ~€70 | [amazon.de](https://www.amazon.de/-/en/dp/B09B3XGWJG) |
+
+### DIY-Rauchabsaugung
+
+Da USB-C Lötkolben keine integrierte Rauchabsaugung haben, hier eine günstige Selbstbau-Anleitung:
+
+#### Material (~€15–30 gesamt)
+
+| Teil | Beispiel | Kosten |
+|---|---|---|
+| 120mm PC-Lüfter (USB oder 12V) | Beliebiger 120mm Gehäuselüfter | ~€5–10 |
+| Aktivkohlefilter-Matte | Dunstabzugshaubenfilter oder Lötfilter | ~€5–10 |
+| Gehäuse | 3D-gedruckt / Karton / Plastikbehälter | ~€0–10 |
+| USB-Kabel oder 12V-Netzteil | Passend zum Lüfter | ~€3–5 |
+| Optional: Schalter, Magnete, Gitter | Für Komfort | ~€2–5 |
+
+#### Fertige Designs (3D-druckbar)
+
+- [**Ultimate 120mm Fume Extractor**](https://www.printables.com/model/484072-ultimate-120mm-soldering-fume-extractor-with-usb-p) — USB-C PD Anschluss, DC-Stromverteiler, Magnethaube, Spannungsanzeige
+- [**Adafruit Mini Fume Extractor**](https://learn.adafruit.com/simple-mini-fume-extractor/overview) — USB-betrieben, kompakt, 3D-druckbar
+- [**DIY Fume Extractor (Hackaday.io)**](https://hackaday.io/project/203315-diy-soldering-fume-extractor) — Loc-Line Armhalterung, HEPA + Aktivkohlefilter
+
+#### Anleitungen
+
+- [iFixit: Günstige Lötrauch-Absaugung selber bauen](https://www.ifixit.com/Guide/How+to+Make+an+Affordable+Soldering+Fume+Extractor/170836) — einfachster Aufbau mit Karton und PC-Lüfter
+- [Electromaker: DIY Fume Extractor mit HEPA & Aktivkohlefilter](https://www.electromaker.io/project/view/diy-fume-extractor-with-hepa-amp-carbon-filter) — fortgeschrittenere Variante mit HEPA
+
+### Inspiration: Solderbot Portable Workstation
+
+Die [**Solderbot** ($109, Kickstarter von Omaxs)](https://www.hackster.io/news/this-109-portable-workstation-replaces-a-desk-full-of-electronics-gear-84fafd818560) ist eine koffergroße, tragbare Workstation mit 18 integrierten Werkzeugen:
+
+- USB-C betriebener Lötkolben (2 Sekunden Aufheizzeit, 230–450 °C)
+- Integrierte Rauchabsaugung
+- LED-Licht & Lupe (20–40×)
+- Magnetklemmen, Abisolierzange, Extra-Spitzen
+- Alles über einen einzigen USB-C-Anschluss betrieben
+
+> **Hinweis:** Solderbot ist ein Kickstarter-Projekt (Lieferung voraussichtlich September 2026) — noch nicht erhältlich. Hier als Referenz aufgeführt, wohin sich USB-C tragbare Workstations entwickeln.
+
+### Vorteile
+- **Ultra-portabel** — überall hin mitnehmen, mit jedem USB-C PD Ladegerät oder Powerbank betreiben
+- **Niedrige Kosten** für den Lötkolben selbst (~€40–90)
+- **Hohe Leistung** (bis 100 W) — konkurrenzfähig mit traditionellen Stationen
+- Passt zum **USB-C-Ökosystem**-Ziel der Werkstatt
+- **Individuell anpassbar** — eigene Rauchabsaugung, Spitzen und Zubehör wählen
+
+### Nachteile
+- **Keine Heißluft** — separate Heißluftpistole nötig
+- **Keine integrierte Rauchabsaugung** — DIY oder separates Gerät erforderlich
+- DIY-Rauchabsaugung erfordert etwas Bastelarbeit
+- Benötigt ein **gutes USB-C PD Netzteil** (65 W+ empfohlen, 100 W ideal)
+
+---
+
+## Empfehlung
+
+### Für unsere Werkstatt sind die besten Optionen:
+
+```
+                    ┌─────────────────────────────────────────────────┐
+                    │           ENTSCHEIDUNGSHILFE                     │
+                    └─────────────────────────────────────────────────┘
+
+    Portabel / USB-C ─────JA────▶  USB-C Lötkolben (~€40–90)
+    betrieben?                     + DIY Absaugung (~€15–30)
+         │                         (FNIRSI HS-02A oder Pinecil v2)
+         NEIN
+         │
+    Budget knapp?─────────JA────▶  Preciva 992D+ (~€130)
+         │                         + separate Rauchabsaugung
+         NEIN
+         │
+    Integrierte ──────────JA────▶  AOYUE 968A+ (~€200)  ◀── WIE AKTUELL
+    Absaugung nötig?               oder AOYUE 2738A+ (~€270) als Upgrade
+         │
+         NEIN
+         │
+    Professionell /───────JA────▶  Ersa i-CON VARIO 2 MK2 (~€1.200+)
+    industriell?                   + EASY ARM Rauchabsaugung
+```
+
+### 🏆 Top-Empfehlung: **AOYUE 2738A+** (~€265–290)
+
+Die AOYUE 2738A+ ist unsere empfohlene Wahl für die Werkstatt, weil:
+
+1. ✅ **3-in-1** — Löten, Heißluft und Rauchabsaugung in einem Gerät
+2. ✅ **Stärkere Rauchabsaugung** als die 968A+, die wir aktuell nutzen
+3. ✅ **Vertrautes Ökosystem** — gleiche Marke, ähnliche Bedienung wie unsere aktuelle 968A+
+4. ✅ **Kompatible Spitzen** — funktioniert mit den weit verbreiteten Hakko T12 Spitzen
+5. ✅ **Fairer Preis** — nur ~€100 mehr als die 968A+
+
+### 🥈 Zweitplatziert: **Aoyue 968A+** (~€165–230)
+
+Wenn wir die aktuelle Station einfach **durch das gleiche Modell ersetzen** wollen, ist die 968A+ eine bewährte Wahl, die alle unsere Anforderungen zu einem niedrigeren Preis erfüllt.
+
+### 💰 Budget-Alternative: **Preciva 992D+** (~€125–170)
+
+Bestes Preis-Leistungs-Verhältnis, benötigt aber eine **separate Rauchabsaugung**.
+
+### 🔌 Portabler USB-C Tipp: **FNIRSI HS-02A** (~€40–75) + DIY-Absaugung (~€15–30)
+
+Maximale Portabilität und USB-C-Ökosystem-Kompatibilität. 100 W über USB-C PD, 3 Sekunden Aufheizzeit. Kombiniert mit einer selbstgebauten Rauchabsaugung (120mm Lüfter + Aktivkohlefilter) für ein Komplettpaket unter €100. Ideal für mobile Reparaturen und als Zweit-Lötkolben in der Werkstatt.
+
+---
+
+## Weitere Ressourcen
+
+- [AOYUE Komplettes Produktsortiment](https://www.aoyue3d.com/en/products/?sort_id=109)
+- [AOYUE Rework-Stationen Übersicht](https://www.aoyue3d.com/en/pro/default.asp?id=99)
+- [Ersa Lötwerkzeuge & Stationen](https://kurtzersa.com/products/electronics-production/soldering-tools-accessories)

From f6c7b827d488f4fb67024fcf061514069136b775 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 9 Mar 2026 20:21:02 +0000
Subject: [PATCH 5/5] Add deep links: table of contents, comparison table
 headers, and recommendation section links

Co-authored-by: falkorichter <50506+falkorichter@users.noreply.github.com>
---
 README.md                                     | 10 +++++++++
 research/soldering-station/loetstation.md     | 21 ++++++++++++++-----
 .../soldering-station/soldering-station.md    | 21 ++++++++++++++-----
 3 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index b221d9f..0baaed2 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,16 @@ Research and documentation for workshop equipment, tools, and supplies.
 |---|---|---|
 | 🔧 Soldering Station | ✅ Complete | [English](research/soldering-station/soldering-station.md) · [Deutsch](research/soldering-station/loetstation.md) |
 
+### 🔧 Soldering Station
+
+- [Quick Comparison](research/soldering-station/soldering-station.md#quick-comparison) · [Schnellvergleich](research/soldering-station/loetstation.md#schnellvergleich)
+- [Option 1: Preciva 992D+ (Budget)](research/soldering-station/soldering-station.md#option-1-preciva-992d-budget-pick-)
+- [Option 2: Aoyue 968A+ (Current)](research/soldering-station/soldering-station.md#option-2-aoyue-968a-current-station--workshop-favorite-)
+- [Option 3: AOYUE 2738A+ (Upgrade)](research/soldering-station/soldering-station.md#option-3-aoyue-2738a-upgraded-all-in-one-)
+- [Option 4: Ersa i-CON VARIO 2 MK2 (Pro)](research/soldering-station/soldering-station.md#option-4-ersa-i-con-vario-2-mk2-professional-grade-)
+- [Option 5: USB-C Portable + DIY Fume](research/soldering-station/soldering-station.md#option-5-usb-c-portable-soldering-iron--diy-fume-extraction-portable--maker-pick-)
+- [Recommendation](research/soldering-station/soldering-station.md#recommendation) · [Empfehlung](research/soldering-station/loetstation.md#empfehlung)
+
 ## How to Use
 
 Each research topic has its own folder under `research/` with a detailed markdown document covering:
diff --git a/research/soldering-station/loetstation.md b/research/soldering-station/loetstation.md
index fb17781..8b9c6fc 100644
--- a/research/soldering-station/loetstation.md
+++ b/research/soldering-station/loetstation.md
@@ -10,11 +10,22 @@ Wir sind eine Werkstatt, die Reparaturen anbietet und an verschiedenen Projekten
 
 Dieses Dokument vergleicht verschiedene Lötstationen in unterschiedlichen Preisklassen.
 
+## Inhaltsverzeichnis
+
+- [Schnellvergleich](#schnellvergleich)
+- [Option 1: Preciva 992D+ (Budget-Tipp 💰)](#option-1-preciva-992d-budget-tipp-)
+- [Option 2: Aoyue 968A+ (Aktuelle Station / Werkstatt-Favorit ⭐)](#option-2-aoyue-968a-aktuelle-station--werkstatt-favorit-)
+- [Option 3: AOYUE 2738A+ (Upgrade All-in-One 🔧)](#option-3-aoyue-2738a-upgrade-all-in-one-)
+- [Option 4: Ersa i-CON VARIO 2 MK2 (Profi-Klasse 🏭)](#option-4-ersa-i-con-vario-2-mk2-profi-klasse-)
+- [Option 5: USB-C Portabler Lötkolben + DIY-Rauchabsaugung (Portabel / Maker-Tipp 🔌)](#option-5-usb-c-portabler-lötkolben--diy-rauchabsaugung-portabel--maker-tipp-)
+- [Empfehlung](#empfehlung)
+- [Weitere Ressourcen](#weitere-ressourcen)
+
 ---
 
 ## Schnellvergleich
 
-| Merkmal | Preciva 992D+ | Aoyue 968A+ | AOYUE 2738A+ | Ersa i-CON VARIO 2 MK2 | USB-C Portabel |
+| Merkmal | [Preciva 992D+](#option-1-preciva-992d-budget-tipp-) | [Aoyue 968A+](#option-2-aoyue-968a-aktuelle-station--werkstatt-favorit-) | [AOYUE 2738A+](#option-3-aoyue-2738a-upgrade-all-in-one-) | [Ersa i-CON VARIO 2 MK2](#option-4-ersa-i-con-vario-2-mk2-profi-klasse-) | [USB-C Portabel](#option-5-usb-c-portabler-lötkolben--diy-rauchabsaugung-portabel--maker-tipp-) |
 |---|---|---|---|---|---|
 | **Typ** | 2-in-1 | 3-in-1 | 3-in-1 | 2-in-1 (modular) | Modular / DIY |
 | **Lötkolben** | ✅ 60 W | ✅ 70 W | ✅ 70 W | ✅ bis 150 W | ✅ 88–100 W |
@@ -307,7 +318,7 @@ Die [**Solderbot** ($109, Kickstarter von Omaxs)](https://www.hackster.io/news/t
     industriell?                   + EASY ARM Rauchabsaugung
 ```
 
-### 🏆 Top-Empfehlung: **AOYUE 2738A+** (~€265–290)
+### 🏆 Top-Empfehlung: **[AOYUE 2738A+](#option-3-aoyue-2738a-upgrade-all-in-one-)** (~€265–290)
 
 Die AOYUE 2738A+ ist unsere empfohlene Wahl für die Werkstatt, weil:
 
@@ -317,15 +328,15 @@ Die AOYUE 2738A+ ist unsere empfohlene Wahl für die Werkstatt, weil:
 4. ✅ **Kompatible Spitzen** — funktioniert mit den weit verbreiteten Hakko T12 Spitzen
 5. ✅ **Fairer Preis** — nur ~€100 mehr als die 968A+
 
-### 🥈 Zweitplatziert: **Aoyue 968A+** (~€165–230)
+### 🥈 Zweitplatziert: **[Aoyue 968A+](#option-2-aoyue-968a-aktuelle-station--werkstatt-favorit-)** (~€165–230)
 
 Wenn wir die aktuelle Station einfach **durch das gleiche Modell ersetzen** wollen, ist die 968A+ eine bewährte Wahl, die alle unsere Anforderungen zu einem niedrigeren Preis erfüllt.
 
-### 💰 Budget-Alternative: **Preciva 992D+** (~€125–170)
+### 💰 Budget-Alternative: **[Preciva 992D+](#option-1-preciva-992d-budget-tipp-)** (~€125–170)
 
 Bestes Preis-Leistungs-Verhältnis, benötigt aber eine **separate Rauchabsaugung**.
 
-### 🔌 Portabler USB-C Tipp: **FNIRSI HS-02A** (~€40–75) + DIY-Absaugung (~€15–30)
+### 🔌 Portabler USB-C Tipp: **[FNIRSI HS-02A](#option-5-usb-c-portabler-lötkolben--diy-rauchabsaugung-portabel--maker-tipp-)** (~€40–75) + DIY-Absaugung (~€15–30)
 
 Maximale Portabilität und USB-C-Ökosystem-Kompatibilität. 100 W über USB-C PD, 3 Sekunden Aufheizzeit. Kombiniert mit einer selbstgebauten Rauchabsaugung (120mm Lüfter + Aktivkohlefilter) für ein Komplettpaket unter €100. Ideal für mobile Reparaturen und als Zweit-Lötkolben in der Werkstatt.
 
diff --git a/research/soldering-station/soldering-station.md b/research/soldering-station/soldering-station.md
index 1c2ec3c..604f4b4 100644
--- a/research/soldering-station/soldering-station.md
+++ b/research/soldering-station/soldering-station.md
@@ -10,11 +10,22 @@ We are a workshop that offers repairs and works on various projects. We currentl
 
 This document compares several soldering station options across different price ranges.
 
+## Table of Contents
+
+- [Quick Comparison](#quick-comparison)
+- [Option 1: Preciva 992D+ (Budget Pick 💰)](#option-1-preciva-992d-budget-pick-)
+- [Option 2: Aoyue 968A+ (Current Station / Workshop Favorite ⭐)](#option-2-aoyue-968a-current-station--workshop-favorite-)
+- [Option 3: AOYUE 2738A+ (Upgraded All-in-One 🔧)](#option-3-aoyue-2738a-upgraded-all-in-one-)
+- [Option 4: Ersa i-CON VARIO 2 MK2 (Professional Grade 🏭)](#option-4-ersa-i-con-vario-2-mk2-professional-grade-)
+- [Option 5: USB-C Portable Soldering Iron + DIY Fume Extraction (Portable / Maker Pick 🔌)](#option-5-usb-c-portable-soldering-iron--diy-fume-extraction-portable--maker-pick-)
+- [Recommendation](#recommendation)
+- [Additional Resources](#additional-resources)
+
 ---
 
 ## Quick Comparison
 
-| Feature | Preciva 992D+ | Aoyue 968A+ | AOYUE 2738A+ | Ersa i-CON VARIO 2 MK2 | USB-C Portable Setup |
+| Feature | [Preciva 992D+](#option-1-preciva-992d-budget-pick-) | [Aoyue 968A+](#option-2-aoyue-968a-current-station--workshop-favorite-) | [AOYUE 2738A+](#option-3-aoyue-2738a-upgraded-all-in-one-) | [Ersa i-CON VARIO 2 MK2](#option-4-ersa-i-con-vario-2-mk2-professional-grade-) | [USB-C Portable Setup](#option-5-usb-c-portable-soldering-iron--diy-fume-extraction-portable--maker-pick-) |
 |---|---|---|---|---|---|
 | **Type** | 2-in-1 | 3-in-1 | 3-in-1 | 2-in-1 (modular) | Modular / DIY |
 | **Soldering Iron** | ✅ 60 W | ✅ 70 W | ✅ 70 W | ✅ up to 150 W | ✅ 88–100 W |
@@ -307,7 +318,7 @@ The [**Solderbot** ($109, Kickstarter by Omaxs)](https://www.hackster.io/news/th
     industrial use?                + EASY ARM fume extraction
 ```
 
-### 🏆 Top Pick: **AOYUE 2738A+** (~€265–290)
+### 🏆 Top Pick: **[AOYUE 2738A+](#option-3-aoyue-2738a-upgraded-all-in-one-)** (~€265–290)
 
 The AOYUE 2738A+ is the recommended choice for our workshop because:
 
@@ -317,15 +328,15 @@ The AOYUE 2738A+ is the recommended choice for our workshop because:
 4. ✅ **Compatible tips** — works with widely available Hakko T12 tips
 5. ✅ **Reasonable price** — only ~€100 more than the 968A+
 
-### 🥈 Runner-up: **Aoyue 968A+** (~€165–230)
+### 🥈 Runner-up: **[Aoyue 968A+](#option-2-aoyue-968a-current-station--workshop-favorite-)** (~€165–230)
 
 If we want to simply **replace the current station** with the same model, the 968A+ is a proven choice that meets all our requirements at a lower price.
 
-### 💰 Budget alternative: **Preciva 992D+** (~€125–170)
+### 💰 Budget alternative: **[Preciva 992D+](#option-1-preciva-992d-budget-pick-)** (~€125–170)
 
 Best price-performance ratio, but requires a **separate fume extraction** solution.
 
-### 🔌 Portable USB-C pick: **FNIRSI HS-02A** (~€40–75) + DIY fume extractor (~€15–30)
+### 🔌 Portable USB-C pick: **[FNIRSI HS-02A](#option-5-usb-c-portable-soldering-iron--diy-fume-extraction-portable--maker-pick-)** (~€40–75) + DIY fume extractor (~€15–30)
 
 Maximum portability and USB-C power ecosystem fit. 100 W via USB-C PD, 3-second heat-up. Pair with a self-built fume extractor (120mm fan + carbon filter) for a complete setup under €100. Great for on-the-go repairs and as a secondary iron for the workshop.