my z axis was super tight trying to install and I think I’ve found why but I’m not sure where I messed up. The gold bit that the lead screw goes in is touching the bearings on either side. The pic below is what it should look like, obviously there’s distance in between the gold piece and the bearings but mind doesn’t have that. I went back through the instructions and I was supposed to snug up those bearings which I did with a torque wrench. The only thing I can think of is did my printed piece come out too small?
Try adding a second M3 in there. You should be able to see the holes.
Yep did that, I meant to put it back before taking the pic. The holes line up perfectly but still get that touching.
Try this
will check that out. That’d really suck if I had to reprint all the parts because if one’s off they probably all are. Anyway to open the stl’s and measure what the dimensions should be so I can compare?
It is best just to print the calibration piece it should not take long.
OK, I’m printing it now. Any idea if the store will restock the 23.5" printed parts?
There are some now, I am just about keeping up with demand.
Awesome I may have to go that route as this is driving me nuts. I printed the tool you sent and my x & z were nearly dead on, my y was 100.7mm so that’s a small amount but still shouldn’t cause this. I reprinted the xyz burly in PLA Incase it was the abs but nope, same result. I’m flummoxed. Any chance the nut for the leadscrew I received is too big? Seriously doubt it but I’m running out of ideas.
Only takes a minute, I would try this first.
Sorry I’m confused, try what? I did print the thingiverse xyz thing you sent. Came out to x=100.18, z=50.1, and y=100.7. Those don’t seem unreasonable based on other posts I’ve read. That what you’re referring to?
Sorry there are three of you with different size issues right now.
Loosen the two 1.25" bolts insert the Z and snug them back up.
No worries, I know you’re swamped dealing with multiple issues. OK tried that, same result. See pic (loosened back those 1.25 before I took the pic). The bearings are touching the nut and making almost no contact with the z rails but I did loosen my tension bolt C’s (going back through instructions step by step to make sure I didn’t screw anything up) so that is probably why. I really want to know why mine is different but I had three thoughts on a work around.
One, put a washer between the two bearings to get them away from the nut. Works but does that mess anything up later and would I need to do that to all 4 of those bearings?
Two, grind the nut down slightly where the bearings are colliding.
Three, try to elevate the nut a little so it’s not colliding with bearings. Maybe a washer or custom round print that matches all the nut’s holes so I can put it underneath. Again, not sure if that’ll effect anything later on.
Thoughts? I used my calipers on the xyz piece and it’s 21mm thick, 94.7 on the Y, and roughly 158.5 on the X (my calipers max at 156 so had to cut it in halves). That’s the same dimensions I get from the import. I just know the answer is staring me in the face!
I am really not sure why this would happen. A spacer under the brass nut is probably the easiest.
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