RE: Failed Y-calibration of a new CoreOne
Thank you for checking! Good to know that the Prusa app does a good job with the frequency measurement.
So maybe the build technician in the Prusa factory was using some other metric to set the belt tension, which systematically deviates from the frequency measurement? Maybe some force-over-distance gauge, or maybe just his "calibrated thumb"? 😉
RE: Failed Y-calibration of a new CoreOne
When we fit new belts to machines, we always over tension them from new as they will relax, but these are steel wire embedded timing belts, and we never drop the tension lower.
These belts are different and even support state to drop all tension then tighten to the correct frequency reading, so maybe the over tensioning is done on purpose ? but I really don't know in this particular case. Maybe someone from PRUSA could explain?
What I do know is after I have done all my pre-flight checks so to speak, the printer is printing beautifully with the supplied roll of prusament PLA. Even 65 Deg Overhangs have come out spot on. Next step PETG
So far very pleased with this printer.
Normal people believe that if it is not broke, do not fix it. Engineers believe that if it is not broke, it does not have enough features yet.
RE: Failed Y-calibration of a new CoreOne
Just wondering if any more development on this front? Whilst i am still awaiting my CoreOne, I sincerely hope Prusa has addressed this issue?
Have recent (last 2 weeks) owners experienced this issue?
Thank you
RE:
I just got a replacement for my first one.
first one was heavily non-squared and went back, i received a new one 2 hours ago and it keeps failing on y calibration.
I don’t think the problem is on the printer but in assembly qc, never got 2 flukes in a row. I’ll wait until beta test phase is over to buy it again.
RE: Failed Y-calibration of a new CoreOne
thank you for the answer! btw when do you think that beta phase will be over?
RE: Failed Y-calibration of a new CoreOne
Usually after some months after release: software bugs get fixed, hardware revisions come out (documented if big enough, undocumented if not) but most importantly quality control becomes decent again after the initial rush.
For sure I’m biased but at the moment, is a mess