I just pulled out my G33 after 5+ years of storage to prep for an upcoming game. Pulled out the inner barrel and hop up to clean and after reinserting the hop up onto the bucking, the hop up wasn't pressing the nub down onto the bucking and into the barrel. It felt like the plastic gear that the main rotary hop up was running on (the one you spin) was stripped a little. I took the hop up unit off the barrel again and inspected the bucking. It looked just fine, and after I put the hop up back on and tested the rotary knob, the nub successfully pushed the bucking down into the barrel. Must've misaligned it at first.
Anyways, did you end up finding a way to 3d print that hop arm? I'm nervous about potentially wearing out a proprietary hop up unit (unless you've found a 3rd party unit that is compatible?)
