W
Wally
Guest
I'm making a chain idler for my recumbent build. 3D CAD-piccy here...
http://www.melodolic.com/3D/Idler/Idler.htm
The metalwork is done, but I'm not sure about the pulley. The bearings it
fits onto are 22mm OD, and the overall diameter of the pulley is 35mm
(because that happens to be the size of nylon rod that I have lying around).
The thickness is 17mm and the chain runs in a groove 10mm wide by 4.5mm
deep.
Do folks reckon this shape would work okay, or might the chain have a
tendency to slip off? I've designed the spindle so that there is scope to
adjust the left/right position of the pulley to try and keep the chain path
central.
--
Wally
www.wally.myby.co.uk
http://iott.melodolic.com
http://www.melodolic.com/3D/Idler/Idler.htm
The metalwork is done, but I'm not sure about the pulley. The bearings it
fits onto are 22mm OD, and the overall diameter of the pulley is 35mm
(because that happens to be the size of nylon rod that I have lying around).
The thickness is 17mm and the chain runs in a groove 10mm wide by 4.5mm
deep.
Do folks reckon this shape would work okay, or might the chain have a
tendency to slip off? I've designed the spindle so that there is scope to
adjust the left/right position of the pulley to try and keep the chain path
central.
--
Wally
www.wally.myby.co.uk
http://iott.melodolic.com