Stem Caster Capture Block

I repurposed a couple of stem casters for a garage workbench. The base of the workbench was too thick for the caster to be bolted through, so this capture block solves the problem. Once printed, you can insert a nut into the top of the block which then scews into your workbench. After you attach the block, thread on your stem caster and you're good to go.