backpocket not cutting

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Jacob Janzen
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Country: UNITED STATES

backpocket not cutting

Post by Jacob Janzen »

We use dxf files from our design tools to generate our parts and a parts list.

Our problem is that when we define a backpocket, thermwood isn't picking it up or cutting it. I have checked the files against a regular pocket layer and all appears the same except for changing pocket z11p0 to backpocket z8p0 (19mm material) and the geometry in the LWPOLYLINE is set to cut from the bottom.

All the codes in the dxf are otherwise identical.

pocket:

Code: Select all

  0
LWPOLYLINE
  5
51
  8
pocket z11p0
 62
0
370
0
 48
1.0
  6
BYLAYER
100
AcDbEntity
100
AcDbPolyline
 90
4
 70
1
 38
0.0
 39
-10.0
210
0.0
220
0.0
230
1.0
 62
1
 10
20.0
 20
-8.0
 30
0.0
 10
85.0
 20
-8.0
 30
0.0
 10
85.0
 20
10.0
 30
-10.0
 10
20.0
 20
10.0
 30
-10.0
backpocket:

Code: Select all

  0
LWPOLYLINE
  5
51
  8
backpocket z8p0
 62
0
370
0
 48
1.0
  6
BYLAYER
100
AcDbEntity
100
AcDbPolyline
 90
4
 70
1
 38
-19.3
 39
11.0
210
0.0
220
0.0
230
0.0
 62
1
 10
20.0
 20
-8.0
 30
19.3
 10
85.0
 20
-8.0
 30
19.3
 10
85.0
 20
10.0
 30
29.3
 10
20.0
 20
10.0
 30
29.3
The files look good in IntelliCAD so I'm really at a loss here.

Any ideas what's going wrong?
Jeremy Schiffer
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Company Name: Corlane Custom Cabinetry LLC
Country: UNITED STATES
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Contact:

Re: backpocket not cutting

Post by Jeremy Schiffer »

I'd start by specifying a tool / tool diameter. Since Thermwood introduced the ability to call a tool by name instead of diameter, that's how we've done it.

For instance:

the old way: pocket d9p5 z8p0
the new way: pocket z8p0 [3185]

Either way, a tool is specified. Your code isn't specifying one, so I'd try that first.
http://www.corlanecabinetry.com

Intel Core i7-5820 3.3GHz, 16GB RAM, NVidia Quadro K2200 4GB, Windows 8.1 Pro 64 bit
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Jacob Janzen
New Member
Posts: 17
Joined: Mon, Jul 30 2018, 9:37AM
Company Name: California Closets
Country: UNITED STATES

Re: backpocket not cutting

Post by Jacob Janzen »

Jeremy Schiffer wrote:I'd start by specifying a tool / tool diameter. Since Thermwood introduced the ability to call a tool by name instead of diameter, that's how we've done it.

For instance:

the old way: pocket d9p5 z8p0
the new way: pocket z8p0 [3185]

Either way, a tool is specified. Your code isn't specifying one, so I'd try that first.
I've never specified anything other than pocket zXXpX, drill zXXpX, etc.

What is the nomenclature you're referring to? I don't see anything about it in the dxf reference.

Thanks!
Jeremy Schiffer
eCabinets Beta Tester
Posts: 1119
Joined: Tue, May 10 2005, 9:36PM
Company Name: Corlane Custom Cabinetry LLC
Country: UNITED STATES
Location: Carnesville, GA
Contact:

Re: backpocket not cutting

Post by Jeremy Schiffer »

Page 96 of the Control Nesting manual has that info.
Capture.JPG
http://www.corlanecabinetry.com

Intel Core i7-5820 3.3GHz, 16GB RAM, NVidia Quadro K2200 4GB, Windows 8.1 Pro 64 bit
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Clint Buechlein
Thermwood Team
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Joined: Fri, May 15 2015, 1:21PM
Company Name: Thermwood Corp
Country: UNITED STATES

Re: backpocket not cutting

Post by Clint Buechlein »

Jacob Janzen wrote:We use dxf files from our design tools to generate our parts and a parts list.

Our problem is that when we define a backpocket, thermwood isn't picking it up or cutting it. I have checked the files against a regular pocket layer and all appears the same except for changing pocket z11p0 to backpocket z8p0 (19mm material) and the geometry in the LWPOLYLINE is set to cut from the bottom.



The files look good in IntelliCAD so I'm really at a loss here.

Any ideas what's going wrong?
Jacob,

Can you post the DXFs and an export from Control Nesting? If you can't post them you can upload them here http://info.thermwood.com/thermwood-file-upload-page, just make sure to put Attn Clint in it.

-Clint-
Jacob Janzen
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Posts: 17
Joined: Mon, Jul 30 2018, 9:37AM
Company Name: California Closets
Country: UNITED STATES

Re: backpocket not cutting

Post by Jacob Janzen »

Clint,

How do I export from Control Nesting?

Thanks,
Jacob
Clint Buechlein
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Re: backpocket not cutting

Post by Clint Buechlein »

Jacob Janzen wrote:Clint,

How do I export from Control Nesting?

Thanks,
Jacob
Jacob,

When in Control Nesting, choose File and then Export. Choose the location you want to save the file.

-Clint-
Jacob Janzen
New Member
Posts: 17
Joined: Mon, Jul 30 2018, 9:37AM
Company Name: California Closets
Country: UNITED STATES

Re: backpocket not cutting

Post by Jacob Janzen »

Clint,

I got the export and wrapped it with my partslist.csv & dxf files.

Here's the link: https://1drv.ms/u/s!Am4RwQL4goIL1cgn0M2 ... w?e=nQ5ns6

Thanks,
Jacob
Clint Buechlein
Thermwood Team
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Re: backpocket not cutting

Post by Clint Buechlein »

Jacob,

Files downloaded. I'll dig into them and let you know.

-Clint-
Clint Buechlein
Thermwood Team
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Re: backpocket not cutting

Post by Clint Buechlein »

Jacob,

As far as I can tell it is working as I would expect it to.

Part of the disconnect may be an understanding of how Control Nesting handles operations. With DXFs, singled sided material isn't an option. If the material isn't defined as single sided for any file type Control Nesting looks at which side of the material has the most amount of operations and that becomes the top of the material. So in your flip DXF with the pocket, the pocket and drills that are labeled as back operations outnumber the other operations. That makes the other operations backside operations, while the ones you defined as "back" are now front operations. The code that is output looks like depths are adjusting correctly for the reorientation of operations.

I believe I'm on the same path, but if I'm way out in left field let me know and I'll look towards other issues.

-Clint-
Jacob Janzen
New Member
Posts: 17
Joined: Mon, Jul 30 2018, 9:37AM
Company Name: California Closets
Country: UNITED STATES

Re: backpocket not cutting

Post by Jacob Janzen »

Clint,

It wasn't showing the pocket on the backside operation on the Nest Overview... Was it in fact going to cut the backpocket? It didn't look like it was going to on the display.

I'll take another look at it.

Thanks,
Jacob
Clint Buechlein
Thermwood Team
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Joined: Fri, May 15 2015, 1:21PM
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Re: backpocket not cutting

Post by Clint Buechlein »

Jacob Janzen wrote:Clint,

It wasn't showing the pocket on the backside operation on the Nest Overview... Was it in fact going to cut the backpocket? It didn't look like it was going to on the display.

I'll take another look at it.

Thanks,
Jacob
Jacob,

Ignore my previous reply, I was in left field (or somewhere left of that). I see what you are saying about it missing. I suspect it is an issue in how the software is creating the DXF. If I load your DXF into Mastercam, and just resave it, it shows the pocket in the nest and creates the code to cut. Mastercam is likely repairing the DXF in some fashion. You can look to see if there is an AutoCAD output version when saving the DXFs. Usually saving in the AutoCAD version 2004-2006 has worked well for other customers in different softwares.

-Clint-
Jacob Janzen
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Posts: 17
Joined: Mon, Jul 30 2018, 9:37AM
Company Name: California Closets
Country: UNITED STATES

Re: backpocket not cutting

Post by Jacob Janzen »

Clint,

Thanks I'm going to try tomorrow I was doing some geometry changes because it didn't work before but maybe we've run an update where my "fix" has now broken things. You just reminded me of flipping geometries around that I'd forgotten about so I'll try reverting that and seeing if it works.

I'll report back tomorrow.

Jacob
Jacob Janzen
New Member
Posts: 17
Joined: Mon, Jul 30 2018, 9:37AM
Company Name: California Closets
Country: UNITED STATES

Re: backpocket not cutting

Post by Jacob Janzen »

Clint,

Thanks! I fixed the geometries back to original and it worked great!

Jacob
Clint Buechlein
Thermwood Team
Posts: 696
Joined: Fri, May 15 2015, 1:21PM
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Re: backpocket not cutting

Post by Clint Buechlein »

Jacob Janzen wrote:Clint,

Thanks! I fixed the geometries back to original and it worked great!

Jacob
Jacob,

Good deal, glad you were able to get it fixed.

-Clint-
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