Bance wrote: ↑Thu Mar 26, 2020 2:39 pm
Willem wrote: ↑Mon Mar 23, 2020 3:26 pm
Converting all three circles to normal lines will also give problems.
If you were manufacturing the blade from a single square billet, you would machine it in stages wouldn't you?
CAD is no different, create a pad that represents the plate, pocket an arbour into it, then pad the teeth thickness.
Does that sound simple?
ajoeiam wrote: ↑Thu Mar 26, 2020 2:14 pm
My question now is why isn't it possible?
If you did as I asked with a single circle sketch, followed by a sketch containing two concentric circles, you might've realised that it is impossible for the software to know what is solid and what is not if there are three concentric circles!
To manufacture the blade:
1. sheet product cut to size
2. arbor likely cut at the same time as the OD but dunno
3. tooth supports are cut (means that the gullets are cut but there is still a flat product)
4. product is either trued (center ground) here or after the carbide teeth are attached
5. carbide teeth blanks are attached
6. carbide teeth are sharpened
dunno if there is a balancing step in there somewhat but highly likely
I wasn't trying to tell the software that everything was a solid. I was trying to tell the software that there were two different 'pads' trying to space them vertically concentric (no way to specify that either). Can NOT do that. (Don't know why, its illogical that its not possible but it is what it is.)