I'm building a custom clock that requires 4-5 clock hands that need to move individually. I've designed it so the hand are to be mounted on telescoping brass axles (that have press fit gears individually connected to servos on the back). There's very little clearance on the front of the clock, so axle only has ~4mm of space on the front.
Right now, I've 3d printed clock hands from PLA and press fit them onto the brass axles. This works, but requires a bunch of fiddling - the PLA tends to warp and require manual bending back into shape so it doesn't bump into adjacent hands. The press fit also has a tendency to slip sometimes.
Is there a better way to design this? The hands ideally would be removable, though it's OK if that process takes some time as it doesn't happen often.
I have access to a 3d printer, a laser cutter, and a variety of woodworking equipment. If there's an excellent solution that requires more equipment, I may be able to get access.