This is a height adjustable pod for a 30mm diameter tube (WAGNER 30mm system tube 16xx).. Interior diameter is 28mm.
Although in the hardware store there are readily available length adjustable furniture legs the fixed length types are much cheaper.
To make it height adjustsable (to accomodate for uneven floors or inprecise cuts) these pods can be used.
FreeCAD files attached to adapt sizes.
Systemrohr-Fuss.FCStd | 687.9KB | |
Systemrohr-fuss.stl | 928.3KB |