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Third Hand Soldering Helper — image 1
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Third Hand Soldering Helper

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This is my attempt at building a simple 3rd hand for soldering.

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Model information

Category
Tools
License
Creative Commons — Attribution

This is my attempt at building a simple 3rd hand for soldering. You can read my blog post at https://www.splitbrain.org/blog/2018-10/21-diy\_third\_hand\_soldering\_helper

Needed materials:

  • about 1m Aluminium wire (5mm diameter), cut to two 30cm and two 20cm pieces
  • 4 51mm alligator clamps
  • 1 300x100x2mm perforated metal sheet (only thickness matters) - they are sold to connect wood beams
  • 2 10x2mm magnets (for the optional bowl)
    Assembly

The holes in the metal sheet are probably not perfect aligned with the corner pieces. Simply drill them a bit bigger. I used a 8mm drill.

Print four corners, four clamp holders (use brim) and optionally one bowl.

  • Fit the corner pieces on the metal sheet
  • push in the wire (make a slight L-shape and rotate the wire to get it in easier)
  • put the clamp holders on the wire (might need some light sanding on the wire)
  • put the clamps into the holders
  • push the magnets into the bowl (use glue if too lose - I did not need any)
    Everything should work press fit - I didn't use any glue.

    Tinkercad Sources


Print instructions

Printer Brand: Prusa
Printer: i3 MK3
Rafts: Yes
Supports: No
Resolution: 0.1mm
Infill: 20%
Filament: off-brand PLA white

Rafts are needed for the clamp holders only.

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