Small 8-day clock pendulum
I have printed the Small 8-day pendulum clock, I had this working pretty well, just left to get the timing 100%.
I was out and on my return the weight shell was on the ground and has split and it also split the back frame. It looks like the thickness of the print for both items was too thin. I just printed the files as they came across.
Any suggestions on how to solve this. Pretty sad this happened as I was so happy with the end result.
Joy
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Hi Joy,
Now l am trying to guess a way for the sudden release of energy from broken weight shell could have caused a stress in the frame. It may be possible if the frame was flexing and suddenly unflexed. Re-printing with 4 perimeters should help. 30% cubic infil would be good also.
You could tie some string around the weight shell to hold it together. There is enough clearance to go under the pulley and wrap it around the bottom a few times. It won't look as nice, but it would give you some piece of mind, at least until you trust the printing strength.
Increasing the print temperature 5-10 degrees should help the layers fuse together better. PrusaSlicer defaults to 230 for the first layer and 220 for all other layers for generic PLA. It used to be either 200 or 210. I never have clogs anymore with the higher temperature and the prints should be stronger.
Steve