Topic: Axis off and no grinding sound this time
After one hour the axis went bananas. No grinding sound or anything. I was watching the print and suddenly the printer started to print in the wrong spot.
See attached picture.
Any ideas?
Re: Axis off and no grinding sound this time
You don't mention which axis off, but it looks like the Y axis. Tighten the two set screws that hold the y pulley to motor. Same thing happened to me a couple of times after a long print. Try printing with the top open, that Y motor gets very hot, and I have added a fan to cool it by splicing into the led light wires. After adding a fan, it no longer gets hot or skips...
Re: Axis off and no grinding sound this time
Hard too say which axis it is. But now when calibrating it failed to move in the X-axis direction. Bad sound and it did only move maybe one centimeter to the right.
Re: Axis off and no grinding sound this time
I tried to print the same piece again. Got exactly the same problem. Seems to be when printing the honeycomb pattern it looses it. The printer prints pretty fast doing it so I guess something goes wrong.
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Re: Axis off and no grinding sound this time
Your y axis is skipping. This can be caused by so many different things.
Time to do some serious calibrating start at the WIKI the steps are pretty much the same for all printers.
Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions
Re: Axis off and no grinding sound this time
Can you point me in the right direction? I have looked at the wiki but can't seem to fina anything about this problem.
Re: Axis off and no grinding sound this time
How did you get on with this? I have the same problem. I think it may be an issue with the trimpots, but I don't know how to set them correctly.
Re: Axis off and no grinding sound this time
The problem is still not solved. I am waiting for the support. They are getting back to me but we have to try out things so it takes time.
Re: Axis off and no grinding sound this time
I just noticed my issue. The actual glass bed was moving around. Watch yours carefully while it's printing to see if this is happening to you.
Re: Axis off and no grinding sound this time
It is not the glass bed.
Re: Axis off and no grinding sound this time
A couple of things.
1. Have you checked you vref values (especially for the Y axis). If they're correct, then maybe turn it up just a little.
2. Have you been able to catch it in the act? It is probably getting stuck on a lump of plastic which is causing either the motor to miss steps of the belt to slip. I think that part of the issue with the honeycomb is that it will take a long time to finish a layer, so very hard if there are any imperfections as the extruder travels back over the previous bits. Maybe setup a webcam taking picture at 2 second interval so that you can review where it is getting stuck, if that's the issue.
3. I've had some troubles when printing at very low layer height (.1mm) as there will always be some curl on the outside of objects and this can be enough to block the print head. Have you tried different layer heights?
Re: Axis off and no grinding sound this time
android78 wrote:
A couple of things.
3. I've had some troubles when printing at very low layer height (.1mm) as there will always be some curl on the outside of objects and this can be enough to block the print head. Have you tried different layer heights?
I had this too. I solved it by setting a z-lift value of 1mm. Slows the print down but it solves the problem.
13 2015-03-17 12:36:30 (edited by pbryan22 2015-03-17 12:37:02)
Re: Axis off and no grinding sound this time
I have intermittently had this problem with the Press. It is an X-axis shift for me. I caught it happening yesterday. There was a momentary jam as it moved left, the belt seemed to bind and then it continued printing, but in the wrong area. The rod was not evenly lubricated. A dry spot in the center and almost goofy at the edges. I wiped it all even (there was dark residue on the rod, likely from the melting plastic). Trying a test print now to see if this works.
Re: Axis off and no grinding sound this time
what is best to lubricate those rods ?
Fat kids are harder to kidnap!
Re: Axis off and no grinding sound this time
pbryan22 wrote:
I have intermittently had this problem with the Press. It is an X-axis shift for me. I caught it happening yesterday. There was a momentary jam as it moved left, the belt seemed to bind and then it continued printing, but in the wrong area. The rod was not evenly lubricated. A dry spot in the center and almost goofy at the edges. I wiped it all even (there was dark residue on the rod, likely from the melting plastic). Trying a test print now to see if this works.
Seems like the same problem I have. Maybe I should clean and lube up :-)