- pls plsParticipantJuly 5, 2016 at 8:07 amPost count: 23
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:JohnParticipantJuly 5, 2016 at 9:13 amPost count: 128
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.vicious1KeymasterJuly 5, 2016 at 10:10 amPost count: 2677
What speed do you have Z-moves set to? Max if you bought it from here is 8.7mm/s.pls plsParticipantJuly 5, 2016 at 10:32 amPost count: 23
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.vicious1KeymasterJuly 5, 2016 at 10:37 amPost count: 2677
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?pls plsParticipantJuly 5, 2016 at 10:43 amPost count: 23
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.vicious1KeymasterJuly 5, 2016 at 10:44 amPost count: 2677
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.pls plsParticipantJuly 5, 2016 at 10:49 amPost count: 23
you probably can tell I am a bit of a noob, but where is the feed rate in estlcam?pls plsParticipantJuly 5, 2016 at 11:20 amPost count: 23
i found the plunge feedrate in the tools list is that what you mean?
it is set to 20mmpls plsParticipantJuly 5, 2016 at 11:43 amPost count: 23
im gonna try just a normal print and see how that goespls plsParticipantJuly 5, 2016 at 11:46 amPost count: 23
yeah same thing happens with printing on repetiervicious1KeymasterJuly 5, 2016 at 11:48 amPost count: 2677
Lets see some pictures, Maybe it’s not put together right.vicious1KeymasterJuly 5, 2016 at 11:52 amPost count: 2677
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.vicious1KeymasterJuly 5, 2016 at 11:59 amPost count: 2677
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.pls plsParticipantJuly 5, 2016 at 12:05 pmPost count: 23
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.
vicious1KeymasterJuly 5, 2016 at 12:15 pmPost count: 2677
- This reply was modified 3 months, 3 weeks ago by pls pls.
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?pls plsParticipantJuly 5, 2016 at 1:09 pmPost count: 23
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 holeJohnParticipantJuly 5, 2016 at 1:43 pmPost count: 128
You used some lube on the threaded rod? And verified it’s straightness I assume?JohnParticipantJuly 5, 2016 at 2:11 pmPost count: 128
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..pls plsParticipantJuly 5, 2016 at 2:13 pmPost count: 23
i have a video of it trying to make the crown uploading nowpls plsParticipantJuly 5, 2016 at 2:28 pmPost count: 23
here is the machine in action
https://drive.google.com/file/d/0B48ZXI8JHt5WRmYyamE0Qi1GdHM/view?usp=sharingvicious1KeymasterJuly 5, 2016 at 2:30 pmPost count: 2677
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.JohnParticipantJuly 5, 2016 at 2:38 pmPost count: 128
I was just thinking it looked much faster than mine is.BarryParticipantJuly 5, 2016 at 2:39 pmPost count: 334
Also, make sure those rubber bands aren’t getting near the bearings.pls plsParticipantJuly 5, 2016 at 3:24 pmPost count: 23vicious1KeymasterJuly 5, 2016 at 3:37 pmPost count: 2677
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?pls plsParticipantJuly 5, 2016 at 4:15 pmPost count: 23
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?
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