I just put power to my new build and it went well. The Z axis was stalling and making a grinding noise. I’m using the jackpot controller. After a few tries I increased the motor current on both Z motors from 0.800a to 1.000a. This seems to have solved the problem. Is this setting okay?? If yes, how much can it be increased to if needed?
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It shouldn’t be necessary.
You may need to do one or more of the following:
Lube your lead screws
Confirm correct motion of your XZ plates on the linear bearings
Check for misalignment of the Z stubs.
Something else is wrong, you don’t need to increase it at all if your machine is correctly assembled/lubed/adjusted.
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Okay, I haven’t added any lubricant yet. It definitely could use it. I do think that will help
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@Justus
On a side note: sharp build!
Now THAT is a table!
Thank you Doug! Your table design is what inspired me to do this build. I’ll post some more when it’s operational.
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It is impressive. Great job. I look forward to seeing more of how you did it.
This is amazing! Nice work!
And yes I had the same issue with my z0 and a little lube made the issue go completely away.
What is everyone using to lubricate their leadscrews? I used dielectric grease before (the same I use on my printer leadscrews) as well as FluidFilm, but wasn’t a fan of dust collecting in the “wet” lubricants. This time I used a dry PTFE lube on both leadscrews and linear rails to try and avoid dust build up, but curious what others would recommend?
Superlube.
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Nice, that’s what I used before and still have a bunch left over. I’ll add a couple dabs here and there.
Yea, for my LR3, I used what came in the kit.
I’m going through my giant-ass bottle faster than I thought I would. Handy stuff!
Edit: “fast” being used for lr2, lr3, and now LR4. Thought I’d use it once then forget about it.
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I’ve had mine for years… I know it’s food grade, but I think your other toys would work better with different lube… 
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