First question, new user: Aspire 4.5

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RobLMurphy
Posts: 3
Joined: Wed Dec 10, 2014 2:29 pm
Model of CNC Machine: Camtech Cobra

First question, new user: Aspire 4.5

Post by RobLMurphy »

Hi! Aspire is awesome, we use it on a Cobra CR-408.
When I build a 3d model to carve with a ball nose, how steep can the sides be?
I'd rather just go over the cliff and straight down but I remember there needs to be some angle....
Thanks. Your turn, ask me something.

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Adrian
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Posts: 10559
Joined: Thu Nov 23, 2006 2:19 pm
Model of CNC Machine: ShopBot PRS Alpha 96x48
Location: Surrey, UK

Re: First question, new user: Aspire 4.5

Post by Adrian »

The sides can be 90 degrees but depending on the model you might get some rough edges. You can use a 2D profile cut to smooth it off or use the draft feature to add a slight slope on the sides to smooth them out.

WoodEraser
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Posts: 198
Joined: Wed Aug 08, 2012 6:30 pm
Model of CNC Machine: Shark Pro Plus
Location: Liberty Twp (N. Cincinnati) OH

Re: First question, new user: Aspire 4.5

Post by WoodEraser »

That would be determined by the geometry of your bit.
If is straight shank it would be 90 degrees to surface and with a tapered ball nose the taper degree would be the determining factor.
Eric
The WoodEraser

Liberty Twp (N. of Cincinnati & S. of Dayton) Ohio

RobLMurphy
Posts: 3
Joined: Wed Dec 10, 2014 2:29 pm
Model of CNC Machine: Camtech Cobra

Re: First question, new user: Aspire 4.5

Post by RobLMurphy »

Thanks to you both. I figured, and yeah I can outline the part and cut vertical edges straight down with an end mill.
The deciding constraint is the bit shape.
At work we have an eight bit tool changer, at home I have a shopbot built in 1863, it's a wind up.

Bonus question: how do I get an email telling me when an answer shows up? (edit: found that check mark down below)

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