110 MM Engineered Twitch

This shape is based on this design https://www.youtube.com/watch?v=uT_DszXM4bE&ab_channel=EngineeredAnglerLures
I print this belly up with support
The body displaces about 40g of water, so depending on your hardware, you will have to adjust the infill for freshwater, and with my hardware, I printed the body to be about 27 grams. The 4.00 Buckshot I used for ballast was about 15 grams, so if you are using splitshot, that should give you an idea. But be careful, the top 2 have a bit more room, so they act as a rattle, so pick a size that is still free to move.

The line tie and hookhangers are designed for twist eyes. The hole is 2mm in the CAD.

The only other thing to watch out for is gluing in the ballast; you want to make sure that the top shot stays free-moving. What I do is install all four, and with the bait on its side, tack the bottom 2 with gelled CA. Then, belly up, put a bead of gelled CA around the shot, and quickly hit the glue with accelerator to stop it from getting into