Rotary milling: excess material left behind

Rotary milling: excess material left behind

bjbriseno
Explorer Explorer
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Message 1 of 8

Rotary milling: excess material left behind

bjbriseno
Explorer
Explorer

Problem: Our goal is to machine a shaft with different features, but I am struggling incorporating the rotary 4th-axis in the setup. The problem we are facing right now involves some stock material being left behind. I tried smoothing, feed optimizing, and I also removed the stock to leave. It appears the smoothing helped remove some of the excess, but not completely. I am hoping to obtain some insight that helps me fix this problem. 

*I left a screenshot below*

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Replies (7)
Message 2 of 8

dmealer
Advocate
Advocate

Just a guess but would doing a contoured pass using the wrap function fix this?

it’s been a while and this is a shot in the dark. I had same problems in Mastercam.

Message 3 of 8

bjbriseno
Explorer
Explorer

I tried 2D contour with wrap toolpath but I'm getting a geometry error.

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Message 4 of 8

johnswetz1982
Advisor
Advisor

You picked a face and not a contour

Message 5 of 8

bjbriseno
Explorer
Explorer

I tried but it wont let me pick the contour of the cylinder, just the face around it. 

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Message 6 of 8

johnswetz1982
Advisor
Advisor

I dont know what your picking without you attaching the model but you should be able to alt-click ,or click and hold and you will get a selection box for face, edge, plane, etc..

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Message 7 of 8

a.laasW8M6T
Mentor
Mentor

You cannot pick a fully wrapped (ie 360°) contour for 2d wrap geometry.

 

I was playing around with something similar the other day and couldn't find a satisfactory solution..

 

It would be great if the Rotary toolpath had some sort of shoulder detection or finishing option, a bit like Flat area detection on some other toolpaths. even with the cutting mode set to circular it doesn't finish shoulders properly

 

I'm finding that Fusion has severely limited simultaneous 4axis capabilities, you can do a lot of stuff its just all half arsed

 

Andrew Laas
Senior Machinist, Scott Automation


EESignature

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Message 8 of 8

shannonthickpenny
Participant
Participant

I finally got this working after hours of messing around - screenshot attached - it appears you need to have "Include Setup Model" switched off and play around with the Rotary axis and Rotary Axis Origin until it works. originally mine overcut by 1/2 the tool diameter hence the -8mm offset on a 6mm tool

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