Sloping side in a pocket

Post general information and questions relating to Cut2D in this Forum.
rtibbs2018
Vectric Craftsman
Posts: 189
Joined: Mon Nov 12, 2018 11:15 pm
Model of CNC Machine: Shopbot desktop
Location: Central Florida

Sloping side in a pocket

Post by rtibbs2018 »

Sorry if this has been addressed however, my search didn't provide an answer.
I'm wanting to cut a sloping side in a pocket using Vcarve Desktop. Is this doable?

Thanks, Ron

User avatar
mezalick
Vectric Wizard
Posts: 2517
Joined: Mon Nov 03, 2008 9:07 am
Model of CNC Machine: Camaster Cobra
Location: Philadelphia, PA USA
Contact:

Re: Sloping side in a pocket

Post by mezalick »

I think the molding toolpath option could do that.
Can you post a picture of what you're trying to achieve ?

Michael
Michael Mezalick
https://carveddetails.com
mm@mezalick.com

User avatar
adze_cnc
Vectric Apprentice
Posts: 811
Joined: Sat Jul 27, 2013 10:08 pm
Model of CNC Machine: AXYZ 4008
Location: Vancouver, BC, Canada

Re: Sloping side in a pocket

Post by adze_cnc »

Possible solutions:
  • if slope matches the angle of a v-bit you could pocket with straight bit then run a profile path with the v-bit (might need to do a bit of geometry if you want the top of slope to be specific size)
  • v-carve / engraving toolpath with a set flat depth
  • use the fluting toolpath (very slow cutting)
  • use the moulding toolpath (no guarantee of smooth sides)
edit: didn't realize this was posted in Cut2D or that poster referred to "VCarve Desktop": some of these ideas might not be doable with Cut2D software if that's what is being used.

PaulRowntree
Vectric Wizard
Posts: 1687
Joined: Sun Oct 24, 2010 7:28 pm
Model of CNC Machine: homebuilt 4'x2' (Mach3+G540)
Location: Guelph, Ontario
Contact:

Re: Sloping side in a pocket

Post by PaulRowntree »

Can you put the material up on a slope that matches the slope you want in the pocket? You would want to have good jigs made, but the edges would be great and the cutting very quick.
Paul Rowntree
WarpDriver, StandingWave, Topo and gadgets available at PaulRowntree.weebly.com

kstrauss
Vectric Craftsman
Posts: 147
Joined: Mon Apr 29, 2013 3:37 am
Model of CNC Machine: Tormach PCNC770
Location: Cobourg, ON, Canada

Re: Sloping side in a pocket

Post by kstrauss »

If you put the stock on a slope wouldn't that mean that the angle of the pocket sides would vary around the pocket?

What angle do you need? You can purchase tapered endmills (intended for mould making in metal but they work OK on wood and plastic) in a huge variety of angles. These would let you mill the edge of the pocket in a single pass.

PaulRowntree
Vectric Wizard
Posts: 1687
Joined: Sun Oct 24, 2010 7:28 pm
Model of CNC Machine: homebuilt 4'x2' (Mach3+G540)
Location: Guelph, Ontario
Contact:

Re: Sloping side in a pocket

Post by PaulRowntree »

kstrauss wrote:If you put the stock on a slope wouldn't that mean that the angle of the pocket sides would vary around the pocket?
.
I was assuming (without evidence) that the pocket was rectangular.
The material would have to be positioned on a slope for each of the sides, but the corners would remain an issue.
Paul Rowntree
WarpDriver, StandingWave, Topo and gadgets available at PaulRowntree.weebly.com

kstrauss
Vectric Craftsman
Posts: 147
Joined: Mon Apr 29, 2013 3:37 am
Model of CNC Machine: Tormach PCNC770
Location: Cobourg, ON, Canada

Re: Sloping side in a pocket

Post by kstrauss »

I was assuming (also without evidence) that he wanted a round or oval pocket. Sorry for the erroneous assumption.

User avatar
highpockets
Vectric Wizard
Posts: 2864
Joined: Tue Jan 06, 2015 4:04 pm
Model of CNC Machine: PDJ Pilot Pro

Re: Sloping side in a pocket

Post by highpockets »

Something like this?
Image 275.png
This was done using the Moulding Toolpath as Michael had suggested.
John
Maker of Chips

User avatar
mtylerfl
Vectric Wizard
Posts: 4377
Joined: Thu Jan 29, 2009 3:54 am
Model of CNC Machine: -CarveWright CNC -ShopBot Buddy PRSAlpha
Location: Brunswick, GA
Contact:

Re: Sloping side in a pocket

Post by mtylerfl »

Ron,

It would be very helpful if you will upload a drawing (or some kind of graphic) to show us exactly what you are wanting to accomplish. Lots of great “guesses” being made here, but we really don’t know what you need for sure.
Michael Tyler

carvebuddy.com

facebook.com/carvebuddy

-CarveWright CNC
-ShopBot Buddy PRSAlpha CNC

User avatar
adze_cnc
Vectric Apprentice
Posts: 811
Joined: Sat Jul 27, 2013 10:08 pm
Model of CNC Machine: AXYZ 4008
Location: Vancouver, BC, Canada

Re: Sloping side in a pocket

Post by adze_cnc »

I presumed nothing and gave what I hoped were generic enough suggestions to cover most situations.

I too would like to see what is going to be cut; to see if there might be some other way of approaching the problem.

---
Creep, crawl, toddle, walk, run
Best answer for a simple question? Help > Help Contents

rtibbs2018
Vectric Craftsman
Posts: 189
Joined: Mon Nov 12, 2018 11:15 pm
Model of CNC Machine: Shopbot desktop
Location: Central Florida

Re: Sloping side in a pocket

Post by rtibbs2018 »

What John posted is exactly what I want to achieve only on two opposing sides.

Thanks John, guess I'll have to explore the molding toolpath

Ron

User avatar
SteveNelson46
Vectric Wizard
Posts: 663
Joined: Wed Jan 04, 2012 2:43 pm
Model of CNC Machine: Camaster Stinger using WinCNC
Location: Tucson, Az.

Re: Sloping side in a pocket

Post by SteveNelson46 »

Are you looking for something like this?
Attachments
Sloped Sides.png
Steve

rtibbs2018
Vectric Craftsman
Posts: 189
Joined: Mon Nov 12, 2018 11:15 pm
Model of CNC Machine: Shopbot desktop
Location: Central Florida

Re: Sloping side in a pocket

Post by rtibbs2018 »

SteveNelson46 wrote:Are you looking for something like this?
Steve,
That's what I'm looking for. Now I just have to figure out how to obtain it :mrgreen:
Being a newbie I'm struggling with how to obtain the proper toolpath. Drive rail and profile?

Ron

User avatar
SteveNelson46
Vectric Wizard
Posts: 663
Joined: Wed Jan 04, 2012 2:43 pm
Model of CNC Machine: Camaster Stinger using WinCNC
Location: Tucson, Az.

Re: Sloping side in a pocket

Post by SteveNelson46 »

I did it in Aspire using a 2-rail sweep just to establish what you wanted. Now it's just a matter of finding a way to do it with just tool paths so it can be done in Cut2D. Maybe others here can help also.
Steve

User avatar
Adrian
Vectric Archimage
Posts: 10120
Joined: Thu Nov 23, 2006 2:19 pm
Model of CNC Machine: ShopBot PRS Alpha 96x48
Location: Surrey, UK

Re: Sloping side in a pocket

Post by Adrian »

The moulding toolpath isn't one I use but out of curiosity I had a play around and came up with this. No idea if it's the most efficient way of doing it but it certainly produces the required shape.
Attachments
Pocket Example.crv
(153.5 KiB) Downloaded 92 times

Post Reply