Have been using this Nomad all of a hour or so and the z axis is binding up.
Ran two, 10 minute test jobs. Was moving on to the 3rd and when homing the z axis is howlingš¤¬
Was told this was a like new machine with 8 minutes on it.
Please tell me this is an easy fix/issue to resolveš¤
Hope I wasnāt sold a lemon as a ālike newā machine 
Do you mean the Z-axis was smashing itself into the top of the carriage and not stopping? Or was it just being loud when moving?
Not moving, in the middle of the carriage.
Sounds like some is preventing it from raising and lowering.
Sounds like there gear is jamedš¤¦āāļø
Are you able to move it down (worst case with the machine powered off, by hand) and see if thereās something wrong with the screw or something?
It might need some lubrication, @WillAdams knows the particular brand that Carbide 3D recommends.
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Havenāt tried that yet! Literally grab the threads and spin?
Was thinking about a full disassembleā¦
(If I HAVE toš¤¦āāļø)
Z does look dirty
Have wd40 dry specialist spray
That might work but in theory they should be slippery. I just grab the Z carriage itself and pull it down.
A full disassembly shouldnāt be needed. I figure worst case you might have to take the bottom plate off so you can remove the carriage but I think even that will be unnecessary, the screw is probably just dry since it hasnāt been used (and therefore maintained) in quite a while.
It might also be a good idea to reach out to support and ask them what they recommend.
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Hi Dan, glad to see you got the machine. Thatās pretty weird, since thatās the sound of a stepper trying to turn, like I talked about in the email, but itās not up against the limit switch. I wonder if the switch cable got jiggled loose in shipping and it thinks itās at its limit. Thereās an existing thread on here about steppers making a racket I thought Iād find for you. But going off memory, if you (turn the machine off) unweight the Z carriage by lifting up on it, while turning the lead screw with your other hand, you can raise and lower the Z by hand. Maybe put it all the way up til it hits the switch and lower it back down again, and center all the axes. To see that it can move freely without getting stuck on anything. The one job I ran on it while I owned it was about a 5min aluminum cutout, so maybe itās a stray chip stopping up the works. Other than that, I havenāt actually spent much time on the machine so Iām not that familiar with what else it could be.
No you werenāt sold a lemon, it definitely did not do this when I made the video of it running in the ad.
ā¦are those Z Axis wires getting kinked as the carriage travels to the right side of the X?
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For lubrication see: https://docs.carbide3d.com/nomad-faq/what-oil-should-i-use-to-lubricate-the-linear-bearings/
Check the wiring to see if anything is obviously misrouted or loose.
If you have difficulties which that doesnāt address contact us at support@carbide3d.com and weāll do our best to work through this with you.
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Will try this when I get back from work!
If it was an aluminum chip would I be able to see it?
First two jobs ran fine 
Going to try fixing after work 
Nick at Carbide and I had a video call yesterday. Extremely pleased with the customer service. Was a call center telecommunications administrator for 10 years and to say the least was very happy with the follow up!
No clear answer now as to what is going on.
We shall see what they say!
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