Work stand for scale plane models

Some time ago I designed a stand for rc plane models (https://www.thingiverse.com/thing:3904218).

This one I did for a friend who makes scale plane models.

Print settings:
layer height - 0,2 mm
outlines/ perimeters - at least 2
infill - 20% at least

In addition to the printed parts you will also need:
2x M5 carriage bolt 20 -30mm long
2x M5 nut
4x M3 bolt 12 mm long
4x M3 bolt 15 mm long
8x M3 nut
two pieces of a tube or rod 8mm diameter and a length of about 30 cm
small sheet of thin rubber