Y Crashes all the way...
Hi,
Running mine since one week, having troubles with the Y axes. Checked hardware (belt, screws, pulley, ect) and diagnostics trice, mechanical test (by hand) don't give any answers to it too, so - everything's looks fine exept:
When printing it'll crash on Y and will reset about every 20 mins...
Can't help myself, any ideas?
RE: Y Crashes all the way...
Does the cable bundle have room to move without hitting enclosure or wall?
Cheerio,
RE: Y Crashes all the way...
I got the same problem after ~100h print time. Checked all the standard things (belt tension, lubrication, ...) without success. Interesting observations:
- It starts at Z>~10mm
- Speed is typically very low (e.g. perimeter printing), Z=const.
- Seems to happen more often for cirucular pattern. OK, this is Voodoo, but it never happened at linear paths.
Some wild idea: Could it be caused by resonances in the framing/table?
RE: Y Crashes all the way...
First thing I would check is a belt tension test using the physical belt tension meter posted on the print library (requires printing in Prusament PETG to be accurate). Print the meter, get the belt into the sweet spot.
Next I would have to get details about your free Y movement. That warning can happen if the movement is jerkey. The Y axis bearing holders and getting the rods set to a good parallel can make a big difference in this problem area.
One way to test free movement is disconnect the belt from the table under-carriage, and check for any inhibitions in Y movement, manually.
You could also not undo the belt from the bed table under-carriage and slowly move the table (by hand) through a full Y axis range. Don't go fast because it will cause back-voltages in the Y motor circuit - which can make the display flash and get wonky. You are looking for resistance spots that the computer is mistaking for stops during calibration.
RE: Y Crashes all the way...
Actually, I did all of that on all axes except for the belt tension meter. All are running extremely smoothly. The software reposts belt tension figures quite close to the recommended mid readings.
What makes me wonder is, that it is actually happening at the most unsuspicious movements at some random X/Y position (slow, just plain add). Could it be some power supply issue? Maybe I put a scope on the 24V.