Sovol SV08 Multiple Motion System Upgrade.
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Nema8 motor working quite well as a zlifter on rear gantry - so have ordered a few more for other extruders.
Will create a short video next showing use of a single optical endstop for U,A and Z Axis.
In the meantime - another interesting video from teaching tech with a comparison between Marlin, Klipper and RRF - with another little mention of this project in the RRF section about 9mins30 in.
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@dwuk3d Initially I was finding that the Nema 8 motors were not powerful enough to reliably lift the gantry.
The Non Lead screw one was I thought rated at 0.4a and the Lead Screw one at 0.24A.
However it looks like on further investigation that the Non lead Screw one is actually rated at 0.8A - and when I set it to 0.6A in Config.g it is working very reliably.
Before I found this out I ordered some smaller (28mm) Nema11-s however as the Nema8's look ok I have ordered two more of those too
Short video attached of Nema8 in operation, and also showing what may or may not be a good idea - using the same (very cheap) optical sensor for
- MicroZ (A Axis)
- U Axis
- Z Axis tapping
In order to swap the 122.io2.in pin between the 3 axis - I found I had to first swap the other axis to dummy IO pins - so that they would release 122.io2.in - so that it could be assigned to the correct axis using M558 commands.
