Good/Bad? RR vCore3.0 500
First, I watched the video. I'm not sure how much I understood from it, but think these are ok, but would like someone with actual experience to give their opinion. The peaks match in frequency and "power" pretty well I think. The extra 42Hz "step" going up on the X probably isn't good, I can't remember if he mentioned such an artifact. The stair step down a couple of steps on the Y, probably not good either.
I'll watch the mentioned video again, but not sure I'll pick up on what I need to do. Thank in advance for any critique or advice.
9 Replies
deep-jadeOP•2y ago
Okay, think I am better than I was. But I don't know for sure and would really like some validation of how these looks. Calibration cube looks good, so I THINK I'm ok. But no idea if I should be change max_accel to 5400 in my printer.cfg or is 7000 okay to leave it at? I'm setting shaper to "zv" which at least that part of the video I think I followed correctly. But can I set a Y max_accel separate from X?
Thanks to any who can help!
deep-jadeOP•2y ago
The new graphs, do I need to keep trying to make them better? Total newb with CoreXY.
deep-jadeOP•17mo ago
Maybe just a simple rating would make it easier to answer? Maybe scale of 1-5 with:
1 = should really rebuild with those v3.1 parts/instructions
2 = needs a bit more tuning (any ideas?) to get what most people get
3 = looks pretty good and average for v3.0 RR500
4 = looks better than most - good job, definitely leave it alone unless it changes
5 = wow! (hahaha, I know that isn’t in the cards, but someday I can dream and all)
The Y Resonances accel = 5400 on ZV; any ideas on what I need to do? I think my belts are right tension, though if they don’t look like they are, please let me know what to look for… loose screw, if so - where would that be, on the head or corner pulls or stepper mounts? Drag/resonances from heavy cabling (if I rebuild to EVA 3.0.2+, definitely going to use an EBB42 as well)? Something else?
Am I not following some rules to ask this question or something? Apologies if I've offended somehow.
is this a stock 500
your getting 16k on the x axes??
and 5.4k on y
then yes your doing great
4
your max accel is always your lowest value for high quality prints so 5400 in your case
deep-jadeOP•17mo ago
Thank you. Yes, stock 500 v3.0 as well. Just built the physical before they released 3.1 upgrade… and then recently finished the rest. Glad to know I shouldn’t be considering a rebuild or something so much appreciated!
deep-jade•17mo ago
How did you fixed those resonances around 75hz ?
deep-jadeOP•17mo ago
Probably moving ADXL from two-sided tape to bolted on to newly printed shroud, but at the same time I tightened every my bolt on the head, couple had another quarter to half turn to give without feeling like I was going too tight. Pully/idler bolts all seemed tight, one gave a tiny bit - but I wasn’t using a torque driver so maybe I just pulled a bit more on that one.
Does anyone know what torque the bolts should be tightened to? “Tight, but not so tight to break the plastic” is very vague for me.
absent-sapphire•16mo ago
Well PETG is known to creep.. so when you tighten the bolts eventually it will compress the plastic making the bolts "loose" again.. but I have a 1.7Nm torque wrench that I use for my nozzle and that seems like a good tightness..
deep-jadeOP•16mo ago
Thank you!