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I'm having a little trouble finding a formula or method for calculating the shape, size and spindle center of a heart shaped cam for a given throw distance. I've been able to make some out of acrylic and just saw/file until they work, but I'd rather have something more solid for calculating the shapes and centers I need for different bobbin heights, rather than trial/error.
Google is great for finding cam calculators ...for auto engines.
The results are so flooded with popular hits for car cam shaft calculators that I just don't see what I need, if it's out there at all.
Anyone have experience with this? I don't have a manual for one of the winders in question, and neither does George Stevens. They don't have record of it. The other is a modified winder which I built a traverse for, so also no manual.
I'm basically looking for - "A heart shaped cam of XXX size and XXX shape and its center located at XXX will move a follower a distance of XXX at a constant velocity" I should have studied harder in geometry class, I guess.
Google is great for finding cam calculators ...for auto engines.
The results are so flooded with popular hits for car cam shaft calculators that I just don't see what I need, if it's out there at all. Anyone have experience with this? I don't have a manual for one of the winders in question, and neither does George Stevens. They don't have record of it. The other is a modified winder which I built a traverse for, so also no manual.
I'm basically looking for - "A heart shaped cam of XXX size and XXX shape and its center located at XXX will move a follower a distance of XXX at a constant velocity" I should have studied harder in geometry class, I guess.
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