Update 26.01.2025:
Added two hooks for elastic bands, to allow return to initial position. You will need to glue them with strong adhesive to the top of the cap and the back of the tool holder.
Added TPU ring for the handle/wheel for better grip. You will need to print it and slide it over the wheel.
Those part are not mandatory, but make handling the jig more coonvenient. I'll add them as STLs and separate print profiles.
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A rack gear heat inserts jig, which I've made for my cheap soldering iron.
Parts list:
1. Base - 1 pc;
2. Rail - 1 pc;
3. Rack – 1 pc;
4. Spur gear – 1 pc;
5. Spur gear shaft – 1 pc;
6. Spur gear shaft cap – 1 pc;
3. Slider (tool holder) - 1 pc, it has holes for M6 screws, but they were not needed with my soldering iron;
4. Rotary handle – 1 pc;
4. Cap - 1 pc;
6. Box (bottom) -1 pc, optional;
7. Box tray - 1 pc, optional, can be used for storing heat inserts and soldering iron adapters;
8. TPU feet for the bottom - 4 pcs, optional;
You can use the jig perfectly fine without the optional parts. Nevertheless I think it will be more functional and good looking with all of them.
Notes:
1. Using some kind of grease or oil on the rail and spur gear shaft is recommended, but not mandatory.
2. The moving parts are designed with medium tolerances, but not the smallest. This is to ensure that even if your filament is not properly calibrated, the assembly should still work.
3. The connection between the spur gear and the gear shaft was intentionally made tighter. If it's too tight you might wanna grind a bit only the inner surfaces of the spur gear. The wheel, spur gear and shaft can be aligned for use with left or right hand.
I'll be happy if you give me some feedback and show me your prints.
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