fixing this vibration
I took the entire toolhead apart, put it back together there are no loose screws, nuts or otherwise. Its a soft touch that removes the vibration entirely. I suspected the fanduct in the back but I filled up any space with some rubberband to ensure its not vibrating. I tried the same with the extruder. I could really use some tips?
9 Replies
fair-rose•14mo ago
Sorry i removed the attachment because its not working after uploading it in Discord, I need another way to share that
fair-rose•14mo ago
fair-rose•14mo ago
Could it be that this is the resonance frequency of the toolhead assembly and not due to some loose part or something?
Yeah the 2504AC's are a little choppy at very slow speeds, they're best at 150 mm/s and above, which is where you want to be anyway 🙂
That said, it's your parts that are vibrating here, you can certainly fix that, but i wouldn't spend much time on it honestly, you'll rarely mess around at 50 mm/s anyway.
fair-rose•14mo ago
I should have continued in the other thread where I was chasing resonance and rattles. I fixed those and in the process swapped out the PETG gantry assembly blocks for ABS versions. Put it back together and while the rattle I was chasing is gone, I got that low vibration and this spike in return. I expected a better reward for my efforts 😉
fair-rose•14mo ago
So after many trials and errors, I managed to get it right somehow 🤣
fair-rose•14mo ago
I must have taken it apart half a dozen times
also replaced some parts, sand them down on sides where they touch another part to make them a tighter fit. I used heat inserts where I could
that vid noise. is simply the tiny freeplay between carriage and linear rail. The bearing themselves have the tiniest freeplay and vibrate like that BTDT. It took a Hiwn Z1 rated rail for mine to finally not do that that at any/all speeds.
fair-rose•14mo ago
Im sure thats part of it but tbf in that vid it was multiple plastic parts of the eva that didnt quite fit together and "rubbed" against each other. After fixing all that theres still a little buzz which is probably what youre talking about. I changed the homing speed a bit to make it sound happier