Hot to, CNC miter

This section is for useful tips and tricks for Aspire
Post Reply
robert_woodguy
Posts: 13
Joined: Sat Sep 14, 2013 1:11 pm
Model of CNC Machine: MechMete home build

Hot to, CNC miter

Post by robert_woodguy »

Hi guys,
Since a photo's worth many words, from this :
CNC miter-Woodworking-2.jpg
Anyone has an idea what is the toolpath strategy, and how can it be done, what "special" tooling is needed to get such "crisp" miter lookalike corners ?
I'm.....lost :?
Thanks, Robert.

User avatar
zeeway
Vectric Wizard
Posts: 3157
Joined: Thu Feb 11, 2010 9:24 pm
Model of CNC Machine: Self-built
Location: SC, USA

Re: Hot to, CNC miter

Post by zeeway »

A vee tool can do sharp internal miter corners such as in your example. The rosette design may have been done by a small diameter ball nose tool...perhaps a 1/8 tapered ball nose cutter. You can also use a sharp vee bit with a tiny nose radius to cut such designs, but it would take a very long time.

Angie

User avatar
Leo
Vectric Wizard
Posts: 4082
Joined: Sat Jul 14, 2007 3:02 am
Model of CNC Machine: 1300 x 1300 x 254 Chinese Made
Location: East Freetown, Ma.
Contact:

Re: Hot to, CNC miter

Post by Leo »

I have not yet explored this - but - I think the "rest" machining strategy would be a good fit to do a project like this. This is where you would use all the normal tooling, like a 1/4 ball nose to rough 3D, and a 1/4 flat end mill to do some pocketing, then a 1/8 taper ball nose for the rosette and possible the frame profile. The rest machining would get into the corners and tiny details with a v-bit - maybe 60 degree.

It's a nicely challenging project.
Imagine the Possibilities of a Creative mind, combined with the functionality of CNC

User avatar
Mike-S
Vectric Wizard
Posts: 1123
Joined: Mon Jun 13, 2011 6:45 am
Model of CNC Machine: Joe's Hybrid 4x4 (but 3x3)
Location: Hayesville, NC

Re: Hot to, CNC miter

Post by Mike-S »

This is a quick try with a 1/16hth BN.
Attachments
doorcarve.jpg

IloveVectric
Posts: 11
Joined: Thu Nov 03, 2011 4:05 pm
Model of CNC Machine: Mach3 compatible

Re: Hot to, CNC miter

Post by IloveVectric »

I used one of those ball nose cutters that tapers down to 1/32 at the tip.
Run a roughing tool path, then a finishing with the 1/32 tapered ball nose and a normal person will never guess it was made on cnc.

Post Reply