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December 14, 2017, 03:04:48 AM

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Author Topic: Surfacing on Rotary Axis  (Read 252 times)
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amstanley
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« on: August 06, 2017, 04:22:48 PM »

Long shot but wondering:

There are wizards for surfacing for tool down on X and Y axis: I wonder if  there is a similar wizard for 'surfacing' on an A axis?

I have a bunch of fence posts, and a CNC with a rotary axis. I want to 'surface' the posts so they are round:
essentially the math is they start with a (squared off) radius of sqrt(2*postwidth^2)/2 and end as a cylinder with radius postwidth/2

Is there a wizard where I can plug those values + length of workpiece and get g-code back to go ahead and round it out?

If not, how would YOU easily do that? Any advice welcomed!

thanks in advance

/malcolm
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rcaffin
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« Reply #1 on: August 13, 2017, 05:53:51 AM »

Not that I am aware of.
And using an RT as a lathe is messy. Yes, it's possible, but SLOW.
Would you settle for octagonal posts? That's easy, and looks good.

Cheers
Roger
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amstanley
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« Reply #2 on: August 13, 2017, 09:26:59 AM »

The reason I am asking is that I am using DeskProto for G-Code generation and it assumes a cylindrical stock,
so just trying to understand easy options for the workflow.
setting it up with square stock and getting the desired outcome is possible,
but better to start with everything normalized, if that is possible..

Guess I have my answer on this.
Might have to write a g-code generator of art as a side project...

Thanks!
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ger21
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« Reply #3 on: August 13, 2017, 10:28:22 AM »

V Carve Pro has a gadget to do it.
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Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
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