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Machining angled surface which is turning inwards

vesa.vestman
Participant

Machining angled surface which is turning inwards

vesa.vestman
Participant
Participant

I'm trying to make toolpath for part side surface which is 89 degrees from the top surface. To achieve this I'm using dovetail cutter. However I'm not succeeding in making toolpath which would follow the surface. I'm using the 3D parallel toolpath and I succeeded to make this if the angle is 91 deg with endmill. Is it that Fusion 360 just can't do this when you need to go "inside" direction? Attached picture of the scenario and red line shows the surface need to be machined.

 

Thank you in advance.

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seth.madore
Community Manager
Community Manager

You'd actually want to be using a 3D Contour for this. Note; with a sharp corner tool, the surface finish is going to be very rough unless you use an extremely small stepdown

2022-01-09_05h31_40.png

 I've attached a sample file showing the method used


Seth Madore
Customer Advocacy Manager - Manufacturing
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vesa.vestman
Participant
Participant

Thank you for replying. Is there any way to change the toolpath 90 deg?

If having horizontal toolpath the surface would be like sawtooth..

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vesa.vestman
Participant
Participant

This is as close as I can get it to work, still it won't do the taper.. Hopefully there is some other way than shim the part to 1 deg and finish that surface by endmill. Even any dirty hack/trick to fool it to think it's 91deg instead of 89 or something..

vesavestman_0-1641747442458.png

 

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seth.madore
Community Manager
Community Manager

No, parallel does not recognize undercuts, 3d Contour would be your only option, unfortunately


Seth Madore
Customer Advocacy Manager - Manufacturing
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vesa.vestman
Participant
Participant

Could this functionality be added to the list of future developments perhaps? :smiling_face_with_smiling_eyes:

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seth.madore
Community Manager
Community Manager

We are working on improving our "undercut" machining strategies, so it's possible that a future release would give better tools for this. No timeline on that though, as the work is still in the "idea" phase


Seth Madore
Customer Advocacy Manager - Manufacturing
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