The Hula Dance is Shaking My Printer Apart
Since adding the Hula feet my table shakes a lot less but my printer shakes a lot more. I've started to notice more loose or detached screws than before I switched. I'm going to assume this is caused by the printer shaking more than it used to.
I suppose I can start using Blue Loctite everywhere but I'm going to switch back to the previous TPU static feet and see if that changes things.
RE: The Hula Dance is Shaking My Printer Apart
I would have expected that the vibration frequencies supported by the heavy printer mass and soft Hula-feet spring constant are too low to shake any screws loose. But as another data point, my printer sits on a sturdy bench and its standard L-shaped feet, and I have only noticed one loose screw so far. (And that one I very likely did not tighten properly: It was one of the two screws I had added to attach the door handle to the polycarbonate sheet.)
RE: The Hula Dance is Shaking My Printer Apart
It's nothing new that screws fall out due to constant vibrations and oscillations. I can't understand why Prusa doesn't mention using Loctite in the assembly instructions.
I also wanted to use the HULA feet, but I'm still struggling with the TPU part. In the meantime, I'm trying to use rolled-up rubber rings.
I can't test it on the Prusa C1+ yet, as it won't be delivered for a few weeks, but I'll test the alternative version on the Prusa XL with a homemade enclosure.
I suspect the TPU ring is too soft and the printer vibrates too much.
RE:
Not an engineer so it's just my highly subjective opinion. I'm going to switch back to the TPU feet and if I notice improvement (again subjective) I'll stick with them. Otherwise I may remount the Hula feet. For reference, this is the table I'm using: Stationary Shop Stand