Cutting Splines

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1350519287
Posts: 22
Joined: Mon May 19, 2014 1:05 pm

Cutting Splines

Post by 1350519287 »

I was pointed to this article.
https://learn.adafruit.com/metal-parts-from-3d-prints/
I downloaded the files and thought this might be a challenge for AlibreCAM (VisualCAM). The perimeters and flat surfaces are pretty easy with a few different ways to skin the cat so to speak.
But how to do the splines. I find that selecting 3D machining and the inner and outer perimeter with a 30 degree tool creates open loops.
How does one go about setting up this kind of machining operation?
The file is too big to include so I've put it here: http://www.autoartisans.com/mill/locking_plate_01.zip
MecSoft Support
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Re: Cutting Splines

Post by MecSoft Support »

You can select the outer perimeter at the base of the 3d feature and use this as your containment region and program 3 axis roughing and finishing operations. Use the minimum radius in Radial Machining to contain the tool to the inner region. Alternatively you can create a circle for the inner perimeter and select this along with the outer perimeter to contain the toolpath. When the selected containment region (curve/edge regions) is not closed loop, this would result in an open loop error when programming 3 axis roughing & finishing operations.
Attachments
Rough&Finish_CutMaterial_Simulation.jpg
Rough&Finish_CutMaterial_Simulation.jpg (122.55 KiB) Viewed 5159 times
3Ax_Radial_Machining.jpg
3Ax_Radial_Machining.jpg (178.77 KiB) Viewed 5159 times
3Ax_Radial_Machining_MOp.jpg
3Ax_Radial_Machining_MOp.jpg (158.93 KiB) Viewed 5159 times
1350519287
Posts: 22
Joined: Mon May 19, 2014 1:05 pm

Re: Cutting Splines

Post by 1350519287 »

That seemed to work for generating G-Code. I'll try it out on the mill and see how it behaves. Thanks.
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