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i have drawn up a jig plate so i can hold some stock while machining, it's a simple plate 20mm thick 120mm long 80mm wide 2 slots cut in each edges (for bolting to my mill table). 10mm relief cuts...

i spent some time today trying to fine tune it, i put the drill chuck in the mill along with a piece of tig welding wire sharpened to a point. i bent the wire to 90 deg so it could point along a...

ok so i got the mill to move 30mm in the X direction and 30mm in the Y direction to basically mill a square slot .5mm depth of cut, i took a pic of the screen after each move, then measured the...

hi Pete, thank you for the reply.

I zero'd the DRO and that said 29.9992, it was a basic straight line so no actual part made. I think I will mill out a square and measure that and report back.
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sorry in advance it's probably been said a thousand times.

i have my axis set up and working, just dialing in the configuration in UCCNC.

my question is how accurate is accurate?

if i ask...

ok so thanks to those that replied to my predicament lol, i have it dialed in now :)

i removed the gearing and made brackets for direct drive on the shafts, i then ran the calibration tool on the...

dean, thanks for the reply i will have a go at that method

boydage, i only tried the Z axis and only over 1 unit which should be 1mm, there doesn't seem to be any back lash in my gear set up but...

ok guy's so this should be my last question regarding this set up.

i have all axis working fine now bearing in mind i have only checked my Z axis with this test, i set up my dial indicator to...

sorted out the issue, turns out it was an encoder wire that was incorrect

thanks neil

i did reset them from the factory setting of 40000 to 1600, both X and Y axis run fine

thank you for the reply :)

thank you for the link, i had a quick look through the pdf but it may as well have been written in brail lol, it made no sense to me

i'll try again at a later date :)

ok so this may be simple but what is 'speed loop kp'

it states in the stepper motor manual referencing faults regarding motor noise that the 'speed loop kp' is too high

this is only affecting...

thank you guy's :) really appreciated


thanks neil :)

ah ok, so for micro steps at 40000 i set the steps per unit in UCCNC to 8000?

hopefully i'm starting to pick this maths stuff up lol

thanks for the quick reply daz, the drivers came pre-set at 40000, so i just want to fine tune it all to the best setting, i did change 1 to 4000 but changed it back while getting the wiring set up...

so what i have read so far is my motors are 200 steps per rev, lowest micro step is 400 so that is 200 x 400 = 80000/5 = 16000. divide that by 200 (steps per rev) that works out to 80 turns per 5mm...

so after sorting out the wiring on my stepper drivers (thank you again) i have them all wired up and working now. i need to understand the micro step settings and what they do, i have read that high...

thanks daz and thank you Peter homann if you are reading, changing the jp3 jumper to zero v, then changing the wires back has worked a treat

thanks again guys :)

thanks daz :) i will have a play tomorrow

hopefully these pics will help, is there something i am not seeing?

thanks neil :)

36v power supplies for the drivers, I am only wiring 1 motor at a time, so there is only 1 driver powered up. yes I have tried switching wires and also tried switching port pins in uccnc

thanks ...

ok i'm not sure if this a motor driver issue or a software set up issue or the guy wiring it all up lol, namely me....

i have nema 24 closed loop stepper motors which came with the CL57Y drivers,...

ninefinger, thank you for your simple answer to a broad question :)

shielded not really necessary, ribbon wire should be fine then as its nice and neat, which i like

thank you :)

umm all good answers, it seems there was a question there to answer after all.

being my first cnc conversion I didn't realise there would be much difference in breakout boards, all the ones I have...

108 views and no-one has any advice what the best wiring is to use?....

ok thanks never mind, i'll find something

i started this conversion a couple of years ago now and in between restoring my porsche its finally at the stage where i can wire up the control box. i decided to go with the closed loop stepper...