Simple Tire with Caster

Simple caster and tire.
Print the wheel, then print the caster.
Will need 3/8 inch metal rod, push on caps from hardware store for axle and caster at the top.

The idea is, take a 3 inch piece of metal rod, glue it in the top, then drill a hole in the object you want to put the wheel/caster on, put 3 inch metal rod in newly drilled hole, then use push caps to hold the caster to the new object. In my case, the caster is being attached to a 2x4 (wood).

Drawn with OpenScad, feel free to play with parameters, not fully paramaterized, but close.