Pins are printed with .5mm clearance so for tightly tuned machines it might seem loose but the three points of contact will allow for easy alignment assembling.

Opening at the top fits a 1" dowel rod

Only the Emitter Top and Emitter Base should need supports

Handle was left blank intentionally to allow the addition of leather/cloth hand grips

Based on artwork found here https://www.artstation.com/artwork/9mnVGN