Topics created by lord binky

@norder Good Idea, I'll double check that this weekend, it's the same for each tower, there's a flat on the motor shafts and I have 2 screws on the pulleys, so it's probably not loose. Admittedly not the same as definitely not lose, and I've gone down rabbit holes overlooking simpler things than that.

So i couldn't recreate the issue with another cable..Frustrating when trying to show shielding fixed the issue, but I'm still confident that was what helped...mostly. Still, I had another test print showing what i have moved away from when EMF was an issue regardless of the solution ( cable pathing or shielding). I adjusted contrast so the visibility was clear even if the colors are looking a little artificial. The surface issue was apparent in any print with the outer layer lower than 60mm/s.
20220423_200324.jpg

@lord-binky said in Fixed my high pitched fan (electrical) noise:

turns out that the issue was running two fans off the same cable right up to their own leads.

Thank you for sharing your experience, this was an interesting report!

@owend it's the inner parentheses that are redundant.

@lord-binky said in Pulley quality tests?:

they had sections that when moving set calipers along the ID the calipers would catch near the flanges

Same experience here. It was a bit maddening at the time actually. I still have a sack of pulleys I'm never going to use after trying to find a few good ones. I wish I had the good sense then to have just got good ones off the bat and moved on. 🙂

@zapta said in My tuned tmc2660 settings:

@wilriker, I still don't get it. 😉

If ch1 is the current through a coil, why there are two yellow lines and what are all those yellow dots? The current through a coil cannot change in zero time.

First of all I am not that skilled in o-scope usage but here is my interpretation: they have overlayed two passes so you can see the waveform better. Also CH1 and CH2 are voltages not current though I think this does not matter much.

The dots I have no real clue what they mean. I would think of noise or they are the actual sampled values used to reconstruct the displayed waveform. From the screenshot you can tell that they used a Rhode & Schwarz HMO3524 MSO. No longer available but looking at the specs that's a pretty expensive piece of gear. So this might have all sorts of math and black-magic available not found on average hobbyist scopes.