I had to upsize some of the shafts to 3mm to get it to work, the small shafts kept bending and binding. Also added ball bearing to the 3mm shafts.

Yes they do even though it is still at my house for visiting. Takes some doing to create weight shells, get them sized, adjust angle, CG and re-size the pulley. I use led shot then fill with epoxy resin which is a lot of extra work. The shells leak and have to be sealed before adding resin. I have had a lot of experience with epoxy, so it made sense for me. I dropped my first weight and it burst, made a mess. I am thinking about a Stargate clock next, clockface and pendulum are easy but I haven't decided on a weight shell.

I added sphere for cord hook on opposite side and narrowed the area for the cord to spool up on so it cleared the bob.

Although I am new to clocks I found that lowering the "flow ratio" or "extrusion rate" makes for cleaner gears. I found setting flow ratio to 0.88 produces excellent results with the gears. The first layer looks pretty thin but they build up sharp, clean and strong.

I found lowering the "flow ratio" or "extrusion rate" helps. I ended up with flow ratio of 0.88 for the gears. They come out smoot and sharp.

Thanks, the kids will probably break them but the thought counts. I tried to glue the bomb around a standard weight shell but it looked terrible. This bomb was too detailed and difficult to work with. I found another one which is simpler and created a pulley attachment to attach to the base and added it in Orca slicer. I use lead shot and back fill with epoxy resin so it doesn't burst if dropped, the epoxy resin is a mess to work with and a real hassle but I like the results. My new bomb is smaller and I rotated it to clear the bob. On the Ghost Buster I had to modify the pully gear so the string coils away from the bob, the ghost's hands tangled in the cord like playing a guitar. Can't mirror the frame parts, pullies don't line up. Just added a cord hook in Orca slicer, a small round sphere. Thanks, I am getting addicted to clocks, so many variations and colors. You have done a great job, your designs are easy to work with.