bolsover
Senior Member
I've been playing about with a few ideas for generating helical gears.
My initial idea was to sketch the gear profile (using my involute gear generator utility) and then extrude a helical boss. This does not work because the generated solid would be self intersecting which Alibre does not allow.
The second idea was to take a single tooth sketch, extrude a helical boss and then circular pattern this for the number of teeth, This works OK but I'm still puzzled about how to set the correct pitch for the helical boss.
My question is this: Is there a 'standard' pitch or helix angle for 'standard' helical gears?
I've read several on-line articles but can't find and reference to standards.
Any suggestions?
My initial idea was to sketch the gear profile (using my involute gear generator utility) and then extrude a helical boss. This does not work because the generated solid would be self intersecting which Alibre does not allow.
The second idea was to take a single tooth sketch, extrude a helical boss and then circular pattern this for the number of teeth, This works OK but I'm still puzzled about how to set the correct pitch for the helical boss.
My question is this: Is there a 'standard' pitch or helix angle for 'standard' helical gears?
I've read several on-line articles but can't find and reference to standards.
Any suggestions?