Chain Drive
Posted: Sat Aug 08, 2020 5:21 pm
Hi Art,
I'm building a clock in which the weight drive is via a ball chain. The chain has 100 balls in 24.5 inches. I want the balls to engage a cage wheel. The issue I have is how to calculate the DP so that the ball chain engages perfectly.
Currently I am making cages the are close but no cigar. The chain having no stretch is therefore unforgiving and is actually a victim of cumulative error causing a skip every so often.
Hope you can help.
If i'm not clear you can see my problem in the attached photo.
I'm building a clock in which the weight drive is via a ball chain. The chain has 100 balls in 24.5 inches. I want the balls to engage a cage wheel. The issue I have is how to calculate the DP so that the ball chain engages perfectly.
Currently I am making cages the are close but no cigar. The chain having no stretch is therefore unforgiving and is actually a victim of cumulative error causing a skip every so often.
Hope you can help.
If i'm not clear you can see my problem in the attached photo.