SP4B will not stay running
Hello. I have assembled and tested all the gear assemblies per the instructions and still cannot get the clock to run. I have increases the weight to probably close to 20 lbs and the only way the pendlum will continue to stay running is if I apply pressure to gear 7 to create more force. The pendulum free swing test went for about 10 minutes so that seems okay. Where and why do I seem to have so much friction loss. All the gear assemblies spin freely on the shafts. Any help would be greatly appreciated.
Tim Jones
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10 minutes on the free swing test is good enough for the pendulum bearings. There must be too much friction in the gears somewhere. SP4B has a few double stacked gears and the escapement arbor also needs to spin freely in the frame.
The next thing to check is the characteristics of the escapement. Does it spin quickly each time the pallet teeth clear the escapement? This is the only way that energy can be given to the pendulum.
Also, slowly move the pendulum back and forth after the clock stops and describe the characteristics.
btw: what runtime option are you using?