Can someone tell me, please what is involved in "swapping gears? Thanks. Steve Peterson has suggested gears I should use to speed up sp5 clock as I want to use a longer, slower pendulum. Thanks, Doug.
The changes involve importing new gears into a CAD program and giving them the proper thicknesses for the final 3D objects. Any 3D CAD program is capable of making these edits.
As I mentioned previously, simply changing the 3-4 gears and lengthening the pendulum would create a clock with 3744 beats per hour. Redrawing the escapement and pallet to have 25 teeth would allow the clock to have 3600 beats per hour.
The exact pendulum length needs to be determined experimentally. A theoretical pendulum length of 39.2" will require an actual pendulum longer than 39.2" because the weight of the shaft affects the operation. There is no easy way to calculate an exact additional length needed, so experiments are needed.
Many other 3D printed clocks appear to be modeled around old designs with one second pendulums. Maybe there is already a design out there that satisfies your criteria. https://www.thingiverse.com/thing:1914748 is one example.
Thanks, Steve. I wrote to the forum hoping to pester someone else! I know you are busy. When I read "swap gears" it reminded me of the metric to inch "change gears" I used to keep in a bread pan on my lathe. That was a piece of cake. I will let this go cor now and just enjoy the clock! If the shorter pendulum bothers me I just won't wind it! If I want a sedately paced noise maker I can use the longer pendulum. I might just start from scratch. Thanks, again, Doug.
The changes involve importing new gears into a CAD program and giving them the proper thicknesses for the final 3D objects. Any 3D CAD program is capable of making these edits.
As I mentioned previously, simply changing the 3-4 gears and lengthening the pendulum would create a clock with 3744 beats per hour. Redrawing the escapement and pallet to have 25 teeth would allow the clock to have 3600 beats per hour.
The exact pendulum length needs to be determined experimentally. A theoretical pendulum length of 39.2" will require an actual pendulum longer than 39.2" because the weight of the shaft affects the operation. There is no easy way to calculate an exact additional length needed, so experiments are needed.
Many other 3D printed clocks appear to be modeled around old designs with one second pendulums. Maybe there is already a design out there that satisfies your criteria. https://www.thingiverse.com/thing:1914748 is one example.