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Second post and already I need help
ed in cny:
Ok here are two drawings. One all in black is showing plans from manual. I have made them into cad programs to cut on CNC. The second drawing with red shows the issue. Now these drawings need a bit of instruction. The piece with the holes in it in a line is the bellow. I didn't add them to the top down view but with the reference lines you should get the idea. I hope that these will explain it better.
The gears will be attached to the back of the case on the drawing in red. They ae in upper left corner of that piece. To the back where the shaft sticks out will be the hand crank. I hope that this helps.
BillTodd:
Your fix should work ok. However it does reverse the direction of the handle relative to the rollers.
Given that the intermediate 'gear' is just an idler, why not just increase the size (diameter) of the gear, and relocate its axis, to span the extra couple of inches?
Bill
ed in cny:
Bill thank you for the reply, I will look into that as an option. However I'm looking at this with that in mind and thinking that's going to be a really large wheel. I need it to turn the music fast enough to have it should right and also so the bellows pump fast enough to supply the needed air. With a larger single idle wheel that would turn to slowly to do things right. Maybe two? Maybe but that gets me back to the first idea again. The idea of the gears. Bill reversing the direction isn't of any concern as it is supplying the feed to the bellows and they are just up and down so it it's right first or left first the organ will supply the same. Thanks for reminding me. I could have missed that but this time it doesn't bother the build.
Brass-machines, I've looked at McMaster Carr for gears and didn't really find something that would be the right size. I'm not sure if I personally could find the right one without having a box full in my hand and picking out the right ones because I can see they fit. If anyone has idea what to use or could help me find the right two, that would be great help. The book just has to many things going on on the page to make it clear selection for me.
BillTodd:
The idler will not change the ratios (handle to roller) at all .
If you have an inch above and below it be should be ok.
Bill
ed in cny:
Bill, than you for the reply. I'm not following you as to how it wouldn't change the ratio. As it is to reach all three places the wheel would need to be bigger there by slowing it's rotation speed. Could you expell your idea so I could understand better?
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