AAAARRRGGH and a HALF!!! Hour 27...
While checking on the progress, I discovered that sometime around the time I first got up, the print had a Y-axis layer shift.
It's possible I bumped it sometime, it's also possible there was fluctuation in power... or that there is a fault in the model and this is in the gcode, or it's possible that the stepper current is off and it skipped a step or two. This printer has never been adjusted, as so far, no printer-related faults of any sort, but the Y-axis driver is the one that had a heat-sink knocked off. It's possible it was damaged operating without the heat-sink (not likely; these are pretty durable and current limit appears to be set on the low side of normal on all 4) or that I changed the setting while I was fixing the heat-sink. And those are just the possible causes I can think of off the top of my head...
mnem
Okay.... so I'm doing my first big print; this is also my first 100% from scratch design.
In case you're wondering, it is a wedge-base stand for my 3 most-used digital multimeters; the hole in the top is to insert a 13mm sq tube for a T-bar with lead hangers.
Printer 100% stock aside from replacing a bent Z coupler and doing the Lowes 12"x12" mirror print surface mod.
Sliced in Cura 3.4.1; Using the included CR-10 Printer Template, FINE Profile at 0.1mm layer height, 20% infill.
Hour 1: Just starting 2nd layer
Hour 5: It appears I've printed an envelope. 🤣
Hour 5.5: Printer infested with Tholian Web disease 😉
Hour 14: Holy Crap; it made it through the night! 👍
Hour 15: Notice minor Y-Axis Shift. Hope I just bumped it.🤞
Hour 24: Starting to Look like something... Hour 27: FAIL. Massive Y-Axis Shift. ☠️
Observed for approx. 15 min; no abnormal sounds, belts feel tight.
Troubleshooting: Tighten all belts a little bit, adjust driver currents per other post. Try again...?
Trying to decide if I should reslice at 0.15mm layer height, maybe with Tornado ultra-fine profile. Or maybe try a draft-quality print to make sure it isn't an artifact in the GCode...
Yes, I noticed the small Y-Axis shift at around hour 15. I considered aborting when I noticed, but also considered that I might have bumped the printer fumbling around at 0:Dark:Thirty in the AM before my first cup of coffee. Of course it printed without incident all day afterwards until I went to cook dinner. 😤
Sitting here listening to it pop loose from the bed as it cools; thinking about all the fun tinkering I could've been doing at my workbench for the last two afternoons.
mnem