I have a gallery of spin paintings here .
Step 1: Stuff you need
* a saw or jigsaw
* a drill with a range of bits
* some spanners (ideally cone spanners for wheel bearing adjustment)
* old bike wheel, I've only used fronts but I'm sure backs would work too
* some thin board like particle board or mdf
* a short plank of pine or ply
* long cable ties
* some large washers that fit round the bolt of the bike wheel
Step 2: Adjust the wheel
The bolt has 2 nuts on each side that are locked together. The nuts closest to the wheel are the cones, and they press against the bearings.
We have 2 options;
1/ loosen the nuts and take the bearings out, then reinsert them later
2/ loosen and tighten on the other side, so we edge the bolt through while keeping the bearings safe inside
Last time I made one, I tried to do option #2, but ended up having to do #1 when all the bearings fell out! So keep a cloth or something underneath to catch them.
After you've moved the nuts along the bolt, tighten the nuts against each other at one end, then slowly tighten the other side's cone into the bearings. Test the feeling in the wheel, we want a combination of low wiggle (play) and smooth turning. When you've got it right then tighten the other side's lock nut and test again.