The clock runs sometime, but only for like two minutes. If I use the key and pull hard the gears move and it goes for that time. Or if I do what is shown in the video it resets. When I take the pendulum off it moves freely, but only for a little bit. I'm not sure what to do.
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I'm thinking it might be elephants foot because I drilled out all of the holes. I have a deburring tool. Would I need to go around each gear to try to minimize the elephants foot?
The clock is losing most of its energy before it makes it to the escapement. Something is binding or pinching. You tell because the escapement barely moves when the pallet moves.
Focus your debug efforts by removing the pallet to look for the the excess friction. It could be the frame pinching a stack of gears. Or arbor holes that need to be drilled out. Or elephants foot. Or any number of things.
Sometimes you can debug the entire gear train at once without the pallet in the way. Sometimes it is easier to debug the gears one by one. Take out all the gears and add them back in individually. Check that the new gear spins easily. Sometimes you need to add the top frame at each step to hold the arbors straight. The gears should always be able to spin with minimal force. As you get close to all the gears added back in, it may take a pound or two on the string to get the escapement to spin because of the gear ratios.