Sight Rail for blowgun

This is a sight that will clamp on to a toy blowgun made of 20mm O.D. PVC tube. It will require 3x M2x10 socket cap head screws and nuts to clamp on. You could use it to attach a cheap laser dot sight.

I've included the FreeCAD file should you wish to respin this for other size piping.

You will need to enable supports on the rail blocks. The nut pockets should be fine but the screw pockets may sag a little and need tidying up. I have included supports in the 3MF file.

I would suggest using PETG for this as it needs to clamp on to the tube and PLA may crack.

Have a look at my blowgun mouthpiece too.