[Ro...] Posted February 3, 2020 Share Posted February 3, 2020 Im working remotely with sister plant, we don't have parts yet just a drawing & a model. So its just a standard 4 flute end mill, i don't think there is anything special about the geometry, but they put a drive end on the back so Dr Robot can handle it. There is a TP diameter callout from the apex of the 4 flutes back to the main shaft which seems easy enough, but since there is nothing 'Clocking' the flutes i don't know how to best locate it. I've used Step points before on 1 family of parts, but i've found them to be very fussy, and i don't want to saddle them with that. Any of you guys have a way to find rotation on the flutes? what was your best solution? FYI, they have FF but no Curve. Link to comment Share on other sites More sharing options...
[Cl...] Posted February 3, 2020 Share Posted February 3, 2020 I had something similar once. I physically clocked it, then used two space points on either side of one flute and created a symmetry point from them to use for clocking. Link to comment Share on other sites More sharing options...
[Ch...] Posted February 3, 2020 Share Posted February 3, 2020 I measure supercharger rotors all day long I can tell you what I do. I measure a 360 degree profile near the top of the part with curve. Then I best fit that curve to whatever alignment rotational around Z. Create an alignment from this curve. Then I measure however many more 360 degree profiles I need. Align all other curves to best fit curve alignment. I have a really good set of instructions for this strategy but I can't find it right now. I'll post if I find it. Link to comment Share on other sites More sharing options...
[Cl...] Posted February 3, 2020 Share Posted February 3, 2020 Please sign in to view this quote. I like Chads idea way better than mine! Link to comment Share on other sites More sharing options...
[Ch...] Posted February 4, 2020 Share Posted February 4, 2020 Roberto, This is how I set my base alignment for those types of rotational parts. Link to comment Share on other sites More sharing options...
[Ro...] Posted February 4, 2020 Author Share Posted February 4, 2020 Please sign in to view this quote. I think you forgot something....... Attachment Jaja Link to comment Share on other sites More sharing options...
[Ch...] Posted February 4, 2020 Share Posted February 4, 2020 yeah, I do that. Link to comment Share on other sites More sharing options...
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