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Pleasure. I ran into the same problem when I built mine last week

Sorry error in my post. 5.9.1 fixes it. That's exactly your problem. I had the same thing and upgrading firmware fixed it.. I see 6.0.1 just got released too

What firmware are you running in the ispindels. This was fixed in 5.9 1 and above which came out in the last week or so.

My new mashmaster mill required too much torque and the 3D printed herringbone gears I showed above were not up to the task (even though they worked on my cheap Chinese mill). So this weekend I got a gate motor from a mate and turned an oldham coupler and mounted on it all. The worm gear in this...

I have used solidworks. Happy to share the files I found the original on the net and adapted for myself. Honestly can't remember where I got the original though. They are done so that you can just enter dimensions into the variables fields to change width, teeth etc. The ganged gears I did using...

As promised clearer photos here. The red gears are new not because the blue ones broke but because I wanted to make sone minor sizing changes to them and I was out of blue filament to print with. If anyone wants gears made I am happy to share the files and they can get them printed locally...

I am using a simple 12v psu I bought at the local Chinese market that is used to drive LED lights. It is rated at 120w so it will supply 10A . For a test I initially used my lab power supply which will drop the voltage when current reaches the Max of 6A, I never saw the overload light come on on...

Yes all shafts are on bearings. That picture is version 1, when I get a chance I will take a photo of version 2 where I have combined the the bearing blocks into one piece. As I said the gears survived the first 5kg (11pounds) just fine with no sign of any stress. I will keep an eye on them...

Just finished my first attempt at motorising my little mill. I took an old 12v gate motor that a friend gave me that runs at 3000rpm and 3D printed a herringbone gear train to bring it down to about 250rpm. Ran through 5kg of grain tonight and the motor doesn't even hesitate when the grain is...