Bambulab P1P Sorbothane Insert Feet

Bambulab P1P feet designed to hold 0.5" thick x 1" diameter, 50 durometer (3.5 - 7.0lb), tapered sorbothane discs. I picked them up from amazon:

https://www.amazon.com/Isolate-Sorbothane-Vibration-Isolation-Circular/dp/B019O5A2EA/

Result

Here's a slightly unscientific test: With my phone placed on the table next to the printer, here are some readings from the accelerometer while the printer runs through an X and Y axis frequency sweep, courtesy of CNC Kitchen:

https://github.com/CNCKitchen/3D-Printer-Vibration

Note: Careful with the provided gcode! The second to last line (G0 X0 Y0 Z10) causes a printhead collision on my machine, so you'll want to delete that for this printer.

Before

After

Printer calibration ran after changing the feet, before testing.

I believe that I'm losing some of the damping on these by constraining them with the side walls, so it may still be better to glue (somehow) them to the underside of the machine or a flat printed insert instead, untested.

Printing

Print with open side face down without supports. Add a brim if needed for adhesion.

On my printer, this happened to make a snug but not too tight friction fit. Scale slightly up or down as needed for your own tolerances.

The inserts can fall out fairly easily when shifting the printer around, especially when brand new before they've picked up any dust and debris, as they're very tacky.

I've also included slightly longer inserts that may help with this, but haven't tested them. The feet may compress too much to use these, or lose too much damping. YMMV