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Filament Sensor with Microswitch
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Other Printer Parts & Upgrades
- Licencja
- Creative Commons — Attribution — Noncommercial — Share Alike
This is a very simple filament end switch using a common microswitch and a small ball bearing for low friction operation.
BoM
- 2x PTFE couplers for 4mm pipes with M10 thread
- micro switch with roller lever
- ball bearing 4mm x 9mm x 4mm (skateboard style)
- 1x M4x8 screw and nut (for mounting the ball bearing)
- 2x M2x12 + washer + nut (for mounting the micro switch)
- 4x M3 threaded insets
- 4x M3x8 for mounting the cover to the base
- Optional: 3-pin JST socket
Printing
No specific settings required to print this model.
Assembly
- Hot insert the insets into the base
- Press the M3 nut into the groove at the bottom and screw in the ball bearing
- Solder the JST socket to the micro switch pins according to your preference (triggered closed or open- needs to be set properly in the firmware).
- Mount the micro switch using the M2 screws. Adjust the angle so that the filament triggers the switch when inserted
- screw in the PTFE couplers (make sure they fit in straight)
- The connector can be glued into place for a more firm fit
- Screw the cover on the base tp close the case