binding barrel bolt meets a carriage bolt

[hanermo2]

Further, drill-rod as barrel, drilled and reamed and a secondary drill-rod as the endcap pressfit would likely cost about 2$/unit qty 3000.
Advanced lathes run 250$/hr and should put out 240-300 pieces / hr.

This would be a dead-easy job where lower unit costs are available.

[magicniner]

To repeat myself because it's the quickest, simplest, cheapest and closest to requirements.
Tube axle (fully inside the bracket)
Holes in the bracket the same size as tube bore
Hammer Drive screws will then fix the tube in place and prevent it rotating, drive screws don't require close tolerances for a good fit, definitely no requirement to ream, just drill.

[cropwell]

I have got a wallpaper seam roller in the garage, I will see how that is done.

[JEK5019]

so i am in total agreement with you - and in fact, the attached image i posted yesterday was according to your idea.

the only question i had - was would the drive screw slightly bulge the tube axle?