Hello,
Primo/Jackpot still in progress, to day I took care about the Z.
Z distance was not good, I had to get up from 200 to 800 to be ok
One mm at a time, it was then ok, but not 10mm (noise, motor looks to stall)
I changed acceleration ( 80 to 20) and it is ok.
Long time ago but I’m pretty sure I had a distance per turn issue at the beginning with my Burly/Rambo, something related to the T nut (I found here a value to adapt in the firmware and forgot it).
My question is about what to think.
It happens, I choose the wrong T nut (it is a 2mm/step) but it’s ok with these value, or should I worry about this ?
Next step is to check X and Y
We need a lot more details. If you bought everything from me, you should not have to touch that.
Whatever you bought is different. So we need a very specific list.
Hi Ryan,
No, except the board, hardware is not from you, meeting the specs I guess, except if I did a mistake.
I gave a look at the place I ordered the leadscrew, I realize they have differents lead value for the same diameter and same pitch… I have to check and learn, to me the pitch is the distance on 1 turn, what does the lead means… I should miss something and it makes sense it could be the reason of my trouble.
I check X and Y this afternoon, I had to lower turn/mm to 40 to get a correct displacement.
I’ll check the pulley tomorrow
lead is the linear distance moved by the nut in one revolution (360°) of the nut or the shaft. The smaller the lead, the tighter the thread, resulting in more precise linear motion. The pitch is **the distance between two adjacent crests or troughs measured parallel to the axis of rotation.
So, I have to find a new leadscrew to avoid needed turn being regularx4 for me.
At the same time Z is not supposed to be the most used axys.
If you’re getting skipped steps in Z then try changing axes/z/max_rate_mm_per_min to a lower value.
Thanks Dreyfus,
at this point (testing), acceleration looks enough, but I Iowered this value as well.
Have you put any lube on your lead screw at all?
Just remember now your max Z speed is 1/4th what ours is as well. So your accel is slower and top speed.
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It’s ok for now but I replace it soon, before serious work… too many hobbies, no enough time, I’d love but I know I’ll never be a CNC master, I must keep it as regular as possible.
Edit: Z lead screw replaced since