Innovative and very high accuracy adjustable Endstop for Reprap Prusa and other models
Description
This innovative approach consists in:
- FIXING the endstop once and forever to the printer structure.
- Doing the calibration by means of a small and accurate M2 screw (0.4 mm per turn) mounted on the part that moves towards the endstop.
- Enjoying NO PLAY/slack.
Sample application - Prusa i3 Z-axis endstop (see pictures):
- Z-Endstop fixed to the metal frame.
- Thing holding the M2 screw fixed to the bottom of the right X-end.
Note: I have removed the metal lever from the endstop, leaving just the button; this improves the accuracy.
Instructions
Additional hardware needed:
- 1 x M2 screw
- 1 x M2 nut
- 2 x small wood screws
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File the end of your screw flat, the deformed end from the rolled threading makes for uneven adjustment - as the screw rotates a different part of the 'point' makes contact with the switch button.
Agreed. You're not only with Z-endstop solution.
There are enough solutions for Z-endstop already on Thingiverse.
well, no so innovative
http://www.thingiverse.com/thi...
http://www.thingiverse.com/thi...
http://www.thingiverse.com/thi...
just to reference some
You are right, there are many solutions around, however so far none so simple, with such a fine resolution and without play/slack.
I think that most people concentrate on devices to move the endstop itself, while I FIX it to the structure; then I tune a screw mounted on the part that moves towards the endstop.
License
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You are absolutely right, done already (this is an old picture, sorry for that)