Steel sheets resonating on right corner
Hi, I have my MINI + now for over 4 weeks, and it prints great, but there is something that annoys the heck out of me.
The steel sheets resonate like crazy on the front right corner when the Y axis moves. When lightly puting my finger on that corner, the resonating stops. I can slide a piece of paper between the heat bed and the steel sheet on that corner (not possible on the other corners). The steel sheets are flat, I checked that first
Is there a way to raise that corner of the heatbed slightly so that the heatbed touches the steel sheet better?
RE: Steel sheets resonating on right corner
I managed to get it on video:
RE: Steel sheets resonating on right corner
There is a mod, similar to that of Nylock mod on MK3, to make bed more even: https://forum.prusa3d.com/forum/user-mods-octoprint-enclosures-nozzles/prusa-mini-silicone-bed-leveling-mod/
But if your bed is so much of a taco or a mountain that steel sheet does not hold there, it is either a case of magnet fallen out (check whether it is present in that corner) or bed being crooked so much it deserves an RMA.
RE:
Thanks for your answer. Took a better look today, got a metal ruler and put in on the heatbed, there is a very, very small gap on the right corner, but overall the heatbed is straight. BUT! I moved the axis from the menu, without the steel sheet on it and the resonating noise was still there, so it does not come from the steel plate (maybe it amplifies it), but from the heat bed.... 😕
I re-tightened all the screws on the heatbed on top, still the resonation is there
RE: Steel sheets resonating on right corner
I disabled the steppers and moved the bed by hand, and no vibration, so the vibration of the Y stepper is transmitted through to the heatbed.
RE: Steel sheets resonating on right corner
The printer is in an IKEA Lack enclosure, on a rubber (mouse)pad, I put a thick plastic chopping board between the mat and the printer, and that seems to help. Going to buy a concrete paver soon to use that, because I need the chopping board for cooking 🤣
RE: Steel sheets resonating on right corner
The concrete paver does an amazing job of damping out noise & vibration. Also get a matching rubber paver to go under the concrete one.
Mini+ (kit) - Revo Micro | Antler Cooling | WiFi (4.4.0RC1)
RE: Steel sheets resonating on right corner
I have the exact same problem. And mine is sitting on a stone paver on top of a piece of exercise mat. If i lightly place my finger on the front right, the vibration is dampened.
Did you ever come up with a solution that worked for you?
RE: Steel sheets resonating on right corner
No, only option left is the silicon bed leveling mod, but the resonation is only there in some cases, not always. It's only there when printing large objects where the Z axis is almost at the back or in some cases where the X axis and Y axis are moving at a certain speed together.
I've learned to live with it, also because it's not there all the time. I'm printing a small object now, and there is no resonating.