New Home › Forum › don’t use this one, I need to sort and delete -Troubleshooting › Z axis catching while running
- July 5, 2016 at 8:07 am #14376
So i just finally finished the new center parts, and I am getting some catching on the z axis. I have been looking for solutions and nothing works, and I for the life of me don’t understand. The machine will be working fine in manual control, but then, when it is doing a print job, the z axis will not work at all. all i get is this noise( i attached a sound file). I have no idea. any help is appreciated.
I am using a 23.5mm machine with all pla printed parts.
Attachments:July 5, 2016 at 9:13 am #14380
try to lube the z threaded rod? might be just enough binding that it’s slipping or skipping… odd… mine made a similar noise during big manual control moves until I lubed it a bit.July 5, 2016 at 10:10 am #14381
What speed do you have Z-moves set to? Max if you bought it from here is 8.7mm/s.July 5, 2016 at 10:32 am #14382
I’m not sure if that z feed rate was in repetier or in marlin, but I have gone over all the settings in the tutorials and made sure to reset marlin to only the files that you provided and it still doesn’t work.July 5, 2016 at 10:37 am #14383
Are you using the hardware and electronics from here, if not what are you using?
What is your slic3r z feedrate set at in repetier, or whatever slicer you are using?July 5, 2016 at 10:43 am #14384
I am using all your components, and I am using estlcam. just to clarify, i was doing the crown as a drawing, i wasn’t printing anything.July 5, 2016 at 10:44 am #14385
What are you using as your rapid feed rate, cut feed rate, plunge rate, and did you check the box to put a feed rate in every line.July 5, 2016 at 10:49 am #14386
you probably can tell I am a bit of a noob, but where is the feed rate in estlcam?July 5, 2016 at 11:20 am #14388
i found the plunge feedrate in the tools list is that what you mean?
it is set to 20mmJuly 5, 2016 at 11:25 am #14389
max is 8.7mm/sJuly 5, 2016 at 11:36 am #14390
it didn’t work 🙁July 5, 2016 at 11:43 am #14391
im gonna try just a normal print and see how that goesJuly 5, 2016 at 11:46 am #14392
yeah same thing happens with printing on repetierJuly 5, 2016 at 11:48 am #14393
Lets see some pictures, Maybe it’s not put together right.July 5, 2016 at 11:52 am #14394
Did you try the z axis torture test?
The part that isn’t making sense is manual moves are generally faster than print and milling moves. If you can move it fine manually it points to bad gcaode.July 5, 2016 at 11:59 am #14395
You could also double check the voltage of the zaxis pot. Make sure it is between 4.7V-.7V. you can turn it up a bit but no higher than .7V.
Make sure the whole z axis moves smooth buy hand to make sure there is no binding on the screw.July 5, 2016 at 12:05 pm #14397
yeah so I did the torture test, I messed with the settings, and I messed with the potentiometer on the driver. now i have the drawing job working, and the problem now occurs on manual control, also, it is only on changes of 10mm, not 1 or 0.1. If this is also not an easy fix, don’t worry about it. I can live without perfect manual control.July 5, 2016 at 12:15 pm #14399
What is the voltage of the pot? Too high is worse than too low, you have to set it with a meter.
Is the travel smooth the whole way by hand? I think the whole problem is this is not moving as smooth as it should. Is your allthread lock centered in the hole?July 5, 2016 at 1:09 pm #14401
the travel is completely smooth, and i have tested it a bunch with the new settings and it is still catching, now its on both manual and jobs, and it doesn’t make any sense. I have no idea what it could be. and the lock is centered in the holeJuly 5, 2016 at 1:43 pm #14402
You used some lube on the threaded rod? And verified it’s straightness I assume?July 5, 2016 at 1:50 pm #14403
yupJuly 5, 2016 at 2:11 pm #14407
Maybe post a pic of the connection to the stepper… Know if the stepper spins inside the pineapple coupler? Or does it skip steps? Maybe if it’s spinning inside the coupler a bit of superglue may be a solution..July 5, 2016 at 2:13 pm #14409
i have a video of it trying to make the crown uploading nowJuly 5, 2016 at 2:28 pm #14412
here is the machine in action
https://drive.google.com/file/d/0B48ZXI8JHt5WRmYyamE0Qi1GdHM/view?usp=sharingJuly 5, 2016 at 2:30 pm #14413
Those accelerations do not look right, much too fast. check your eeprom and see what they currently are. You can do this with the screen or repetier.July 5, 2016 at 2:38 pm #14414
I was just thinking it looked much faster than mine is.July 5, 2016 at 2:39 pm #14415
Also, make sure those rubber bands aren’t getting near the bearings.July 5, 2016 at 3:24 pm #14418
Yeah that did it. I bumped down the feedrates and everything is running smoothly. Thanks you so much everyone for all your help! 🙂July 5, 2016 at 3:37 pm #14421
Feedrates are fine, its the accelerations you need to dial in. You want to control your oscillation that are happening and will break bits if not careful. Did you change the firmware, It comes preset, much slower than this?July 5, 2016 at 4:15 pm #14435
well I had originally changed the z feed rate to 5 from 8.7, and that did fix it, but if this is not right I will keep fiddling, I have brought down z acceleration to maybe 5 and it didn’t work though, are you sure that it isn’t the feed rates?
You must be logged in to reply to this topic.