Original Prusa i3 bed leveling upgrade

Upgrade for the bed leveling mechanism of the Original Prusa i3 Kit

3D printer parts and enhancements

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The bed leveling mechanism of the Original Prusa i3 Kit is quite simple and never really worked satisfyingly for me. Thats why i created this spring-loaded upgrade.

This leveling mechanism lifts the bed higher then the original one. Therefore you will loose ~12mm of vertical build space. Don't forget to adjust your Z-Endstop before homing your Z-Axis

Materials and methods

Besides the printed parts, you need:
- 1x M4x10 screw
- 1x M4 nut
- 3x M3x20 screw
- 2x M3 nut
- 1x M3 washer
- 1x compression spring (5-6mm diameter, the stronger the better)

Print Settings:
Resolution: 0,2mm
Infill: 35%

Although the supporting surface does not directly touch hot parts of the heat bed, parts (2) and (3) can reach temperatures up to ~85Β°C when the heat bed is set to 110Β°C. Therefore parts (2) and (3) have to be printed with ABS.

- Insert M4 nut in nut trap of part (1)
- Insert M3 nut in nut traps of part (1) and part (2)
- Insert M4x10 screw in the top hole of part (1)
- Insert in M3x20 screw in the bottom hole of part (1) and screw it all the way in
- Insert M3x20 screw into top hole of part (2), slip compression spring over the M3x20 screw
- Press parts (1) and (2) together and tighten the M3x20 screw
- Slide the assembled Parts over the posts of the Y-Carriage
- Adjust positions as needed, than tighten M4 screws
- Place the heat bed on the supporting surface
- Join part (3) with part (2) by using the last M3x20 screw and the M3 washer



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Mini imageRflynn added this to the Bobs collection collection ago
D48efb1546a9a5ea81478c9c8e5dc8af?default=blank&size=40Vinagre added this to the I3 collection ago
E8311f96812e62588e32b34f02e1c9c1?default=blank&size=40StevenL added this to the Prusa-i3 collection ago
Mini 21cb.jpg3DMK published this design ago