TO-92 lead bending plier
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A parallel plier with a changeable stamp die, designed to bend the middle lead of TO‑92 transistors
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Hi,
This design is a 3D‑printed parallel plier equipped with a changeable stamp die for component bending. It was designed to help bend the middle lead of TO‑92 transistors in a clean, repeatable way.
The modular construction allows the stamp die to be exchanged without reprinting the entire tool, enabling adaptation to different bending requirements. An additional die variant, which bends the middle lead in the opposite direction, will be provided later.
The tool has shown positive initial results for bending TO‑92 transistor leads, but it has not yet undergone extended testing, so potential weaknesses in durability or performance are still unknown.
My print settings:
- Nozzle: 0.4 mm
- Layer Height: 0.2 mm
- Walls: 5
- Infill: 25% gyroid
- Material: PETG
Materials:
- 2x M3x10 (Jaw Slots)
- 2x M3x10 (Jaw - Handle)
- 1x M3x12 (Jaw - Handle, middle)
- 4x M3x12 (stamp die)
- 4x M3 washer (stamp die)
- 4x M3 nut (stamp die)
Update 15.11.2025
- added 2. die with opposite lead direction
- added the dies and pusher as seperate files
Happy printing!