Reinforced Plunger Rod for Hammerhead Nerf Revolver

TL,DR: Hole for 4mm cord is smaller, and smaller catch point at the end is removed, so that the walls can be stronger. Adds fillet to the priming hook, to avoid concentrating stress at the corner.

I had a plunger rod snap when I first assembled my Hammerhead, and upon looking at the part, there are clear weak points around the loop for the cord to pass through! The right angle on the prime hook concentrates all the force of priming right into that little corner, and the mini-catch at the bottom of the rod is a very thin point directly across from that force. Friend at the makerspace whipped up this remix part with me, to address those two weak points. I looked over the design and gave instructions, and he did the operations in tinkercad.

Things to address:

• The fillet radius could be a couple mm larger before interacting with the linkage to the hammer, but this would cause it to interact with the plunger tube. Maybe a cut or channel in the PT to accommodate the radius

This file is remixed from Bruce LeedleLeedleLeedleLee's Hammerhead string revolver blaster, linked below. I was given permission to publish this file by Bruce.