Re: [CAD_CAM_EDM_DRO] Re: cutter or tooth profile for XL series timing belts/pulleys?

Hi,

First of all I have not tried this but I have cut a lot of gears using a
home made hob. I did try using a single point cutter and dividing head many
years ago with some success but it wasn't perfect because I didn't get the
radius's right. It did work and is still going strong but it was for a motor
drive and no precision was necessary

Wouldn't the pulleys be treated the same as for involute gears just with a
different pressure angle, I think it would be 50 degrees if memory serves.

The hob acts in the same way as a rack cutter and will cut any size of
wheel. Making the hob is an easy turning/milling job.

Regards,

Terry


| > Does anyone have a drawing of a cutter or tooth profile for XL series
| > timing belts/pulleys? I am hoping to mill up some pulleys in the
| > comming weeks. I have a pulley and a belt in my hands, but if someone
| > has already made up a cutter drawing, it sure would save some work!
| >
| > Thanks
| >
| > Chris
|
| We discussed this a few months ago.
|
| it is not the exact form unless you have one gear.
|
| Each gear tooth will be different on each gear as the total number of
| teeth changes.
|
|
| That said, check the files section.
|
| Alan has a program in a folder
| Timing Belt Pulley - Program to generate Gcode to mill timing belt pulleys
|
| Dave