I added slots on the cylinder wall to make sure that the machine is free to swing a short distance in the XY plane and is firmly fixed in the Z direction. This allos the anti-vibration feet to better absorb vibration without introduce wobble in the motion system.

Then compared to the original version, 8 pins have been added for a more stable fixing.

Print with TPU 95A, and it raises your machine by about 28mm compared to the factory condition. You can use this space for storage, like my another design Build Plate Holder under X1/P1: https://makerworld.com/en/models/102356#profileId-109004

There are two versions:

Sturdy version: If you put the AMS on the top of your machine, or you often print high temperature materials with enclosed chamber, please using sturdy version. It may seems a little too hard at room temperature, but after weight bearing or after the temperature rises, it's just right.

Soft version: If you don't put AMS on top, then use the soft version.