Flat area in bottom of cutout.

This section is for useful tips and tricks for Aspire
Post Reply
JimmyD
Vectric Craftsman
Posts: 113
Joined: Fri Jun 06, 2014 7:01 am
Model of CNC Machine: ShopBot PRSalpha, custom rotary indexer
Location: Tucson, Arizona

Flat area in bottom of cutout.

Post by JimmyD »

The bowl shape in the photo is 18' x 18" x 6" thick. The concave cutout is 5" deep. The concave cutout was made by using the "create shape from vector" tool.

Does anyone know how to put a flat area at the bottom of the concave cutout?

Thanks in advance for any suggestions.
Attachments
bowl render.JPG

User avatar
Adrian
Vectric Archimage
Posts: 14544
Joined: Thu Nov 23, 2006 2:19 pm
Model of CNC Machine: ShopBot PRS Alpha 96x48
Location: Surrey, UK

Re: Flat area in bottom of cutout.

Post by Adrian »

Setting a limit height value when you create the shape should do it.

User avatar
mezalick
Vectric Wizard
Posts: 2970
Joined: Mon Nov 03, 2008 9:07 am
Model of CNC Machine: Camaster Cobra
Location: Philadelphia, PA USA
Contact:

Re: Flat area in bottom of cutout.

Post by mezalick »

Adrian’s correct, the limit to height option will give you a soft flat bottom ( see attached picture )
If you want a sharp flat bottom, just add another flat component and raise it to where you want.

Michael
Attachments
limit to height.JPG
flat component.JPG
Michael Mezalick
https://www.youtube.com/user/mezalick
mm@mezalick.com

User avatar
mezalick
Vectric Wizard
Posts: 2970
Joined: Mon Nov 03, 2008 9:07 am
Model of CNC Machine: Camaster Cobra
Location: Philadelphia, PA USA
Contact:

Re: Flat area in bottom of cutout.

Post by mezalick »

Adrian’s correct, the limit to height option will give you a soft flat bottom ( see attached picture )
If you want a sharp flat bottom, just add another flat component and raise it to where you want.

Michael
Attachments
limit to height.JPG
flat component.JPG
Michael Mezalick
https://www.youtube.com/user/mezalick
mm@mezalick.com

JimmyD
Vectric Craftsman
Posts: 113
Joined: Fri Jun 06, 2014 7:01 am
Model of CNC Machine: ShopBot PRSalpha, custom rotary indexer
Location: Tucson, Arizona

Re: Flat area in bottom of cutout.

Post by JimmyD »

Thanks very much!

User avatar
mezalick
Vectric Wizard
Posts: 2970
Joined: Mon Nov 03, 2008 9:07 am
Model of CNC Machine: Camaster Cobra
Location: Philadelphia, PA USA
Contact:

Re: Flat area in bottom of cutout.

Post by mezalick »

In my universe, there are three answers to every question.
While having an adult cocktail with my wife this evening , this question started to burn a hole in my forehead...
So, for my third way you could use a the two rail sweep..
I know,,it’s not efficient or even “ easy” but it can be done..
Michael
Attachments
two rail sweep.JPG
Michael Mezalick
https://www.youtube.com/user/mezalick
mm@mezalick.com

JimmyD
Vectric Craftsman
Posts: 113
Joined: Fri Jun 06, 2014 7:01 am
Model of CNC Machine: ShopBot PRSalpha, custom rotary indexer
Location: Tucson, Arizona

Re: Flat area in bottom of cutout.

Post by JimmyD »

Glad to hear that I am not alone in my never ending thoughts of how to solve a problem.

Again, thanks very much

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: Flat area in bottom of cutout.

Post by PaulRowntree »

Or use a fluting toolpath. This works in VCP too.
Attachments
Flat bottom bowl.jpg
FBB Vectors.jpg
Paul Rowntree
WarpDriver, StandingWave, Topo and gadgets available at PaulRowntree.weebly.com

User avatar
mtylerfl
Vectric Archimage
Posts: 5865
Joined: Thu Jan 29, 2009 3:54 am
Model of CNC Machine: -CarveWright CNC -ShopBot Buddy PRSAlpha
Location: Brunswick, GA

Re: Flat area in bottom of cutout.

Post by mtylerfl »

Many ways to skin a cat. Here's another way, just for fun...

1) Dome -Subtract
2) Full-Depth Block - Add
3) Partial Depth Block - Merge
Attachments
Dish-with-flat-bottom.jpg
Michael Tyler

facebook.com/carvebuddy

-CarveWright CNC
-ShopBot Buddy PRSAlpha CNC

Post Reply