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  #1  
Old Mon 07 September 2009, 07:29
cabnet636
Just call me: jim
 
columbia sc
United States of America
aspire and cabinetmaking

ryan patterson of http://www.cabinetpartspro.com/ has created a nesting program that allows me to define my door sizes then nest and produces a parametric .dxf that when imported into Aspire allows me to add details and carvings. thanks to ryan this makes mdf door production to a small shop possible with out spending BIG bucks on software and IT guys.

http://www.cabinetpartspro.com/Nester/Nester.htm

jim
Attached Images
File Type: jpg Fullscreen capture 972009 90232 AM-1.jpg (27.7 KB, 567 views)
File Type: jpg Fullscreen capture 972009 90356 AM-1.jpg (43.2 KB, 564 views)
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  #2  
Old Mon 07 September 2009, 09:21
Greeny
Just call me: Greeny
 
The North
United Kingdom
Hi Jim,

I know nothing about cabinet making, but have a lot of experience in nesting for glass cutting which,
while subtly different from cutting wood parts out of a panel, is close enough for me to be concerned by your picture.

Unless there is some reason i don't know of (Likely!), it seems to do a poor job of nesting, resulting in waste due to badly sized offcuts.

Here is the output from a glass optimiser (metric, sorry) with the same panels but 10mm oversize to simulate a cutting kerf of 10mm (~3/8").
As you can see it has a much more usable offcut!
Even allowing for a non cutting border around the board this layout would remain the same and you would still have a large usable offcut.

I'm not trying to nit pick, just concerned you it might be costing you more than it need.
The fact it is a very simple optimisation with only 2 sizes and 12 pieces does not bode well.


Cheers
Greeny
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File Type: jpg Optimiser.jpg (40.1 KB, 557 views)
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  #3  
Old Mon 07 September 2009, 09:48
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Jim

There is a program called Free Doors that works very well.
http://home.centurytel.net/bwclark/

I have to agree with Greeny and not to be critical but the software you are looking at is not nesting. Even Aspire's nesting procedure has problems. Then you add the desire to have the grain run the right direction and you have to do some work to get it nest properly.

Greeny, you program does nest well but add some grain issues and does it still do the same job. Please, I am not trying to be critical.
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  #4  
Old Mon 07 September 2009, 10:05
Greeny
Just call me: Greeny
 
The North
United Kingdom
Hi Nils,

Yes, although it's for glass, it can cope with grain as some patterned glass has a direction.
When the sheet is marked as having a grain, rotation of parts is not allowed which can (and usually does) impact on the efficiency of the nesting.

It wouldn't really be used for wood panel cutting though, as it is a dedicated glass program and cutting glass is subtly different (zero kerf & only 'edge to edge' cuts allowed).

I only showed it to demonstrate that the nest could be better.
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  #5  
Old Mon 07 September 2009, 10:09
liaoh75
Just call me: David
 
Taibao
Taiwan
Hi Jim,

I've been looking into Cabinet Parts Pro and have not come to a conclusion as to rather or not it is worth purchasing. Would you be so kind as to offer your take on this piece of software?

Thanks
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  #6  
Old Mon 07 September 2009, 10:31
Richards
Just call me: Mike
 
South Jordan, UT
United States of America
Unfortunately, the FreeDoors program that Bruce Clark and I wrote only works with Shopbot software. At one point, I started revising the doors.exe file to generate G-code, but there were issues with generating arches that were not simple to solve. Bruce also made an attempt to generate G-code and had the same type of problems.

So, for the time being, the FreeDoors program only works with Shopbot software.
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  #7  
Old Mon 07 September 2009, 12:17
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Mike,

Sorry guys, I thought it worked for all machines.
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  #8  
Old Mon 07 September 2009, 16:25
cabnet636
Just call me: jim
 
columbia sc
United States of America
for those who took a look i asked it to make twelve pieces which it did and left the waste in length as i specified (which you cannot see) i have spent a bit more time with it and am learning to better set my waste and nesting settings, my goal was to show the program which works great and i will post more pics soon, the new version of cabinetparts pro is excellent and i have used it since 07, sorry if i did not show a good nest i will do better but the program already does!!

as far as free doors we made efforts some time ago to use it and to no avail, i have been making mdf doors with aspire but with out some parametric ability it was time consuming, i do primarily commercial breakroom doors so i asked ryan to pursue it and so far so good!!

jim
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  #9  
Old Mon 07 September 2009, 16:34
cabnet636
Just call me: jim
 
columbia sc
United States of America
took a couple of minutes but i am learning more about how to use it

waste was 88% which is acceptable to me, i did not show the third sheet as it obviously did not fill, i changed waste settings much lover
Attached Images
File Type: jpg Fullscreen capture 972009 62900 PM.jpg (34.6 KB, 520 views)
File Type: jpg Fullscreen capture 972009 62915 PM.jpg (28.2 KB, 519 views)
File Type: jpg Fullscreen capture 972009 63003 PM.jpg (45.4 KB, 522 views)
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  #10  
Old Tue 08 September 2009, 01:19
Greeny
Just call me: Greeny
 
The North
United Kingdom
That is much better, but still not good.
I plugged the same sizes in again, 10mm oversize to simulate a 10mm kerf (~3/8) and got about 96% on the first two sheets and a nice offcut on the third.

Sorry if i seem to be nitpicking, but If you make alot of doors, good nesting software will save you money every day, forever.
.
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File Type: jpg Opt2.jpg (66.6 KB, 492 views)
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  #11  
Old Tue 08 September 2009, 02:28
cabnet636
Just call me: jim
 
columbia sc
United States of America
i use a 1/2 inch kerf to allow the distance needed to profile a door as these bits are 1+ inches wide at the top of the diameter, i work closely with a local glass company as we are in the architectual business end of this, i have spent a great deal of time watching them and you are right the tollerances are closer with glass, i have had the program two days and obtained a tollerence that is acceptable to our industry,

i do appreciate the prodding though!! i will study harder

jim
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  #12  
Old Tue 08 September 2009, 02:37
cabnet636
Just call me: jim
 
columbia sc
United States of America
i dropped kerf to .375 and got to 94% that is to close for cabinet bits as with the heat the larger the cutter the better but i will keep trying!!
jim
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  #13  
Old Tue 08 September 2009, 04:01
Greeny
Just call me: Greeny
 
The North
United Kingdom
94% is pretty good for those sizes.
I was probably guessing a kerf that was too narrow.
A wider kerf will definately affect things when the nesting is tight.
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  #14  
Old Tue 08 September 2009, 04:36
hennie
Just call me: Hennie #23
 
Roodepoort JHB
South Africa
Will that be a once off order or is it sausage machine order?
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  #15  
Old Sat 12 September 2009, 05:13
cabnet636
Just call me: jim
 
columbia sc
United States of America
ryan has given us an update that allows offesets to be set from a drop down menu inteast of having to do it in the script, this simplifys settings for mdf doors,

i have also recieved from whiteside the dxf profiles for the bits in thier catalog

jim
Attached Images
File Type: jpg Fullscreen capture 9112009 65813 AM-1.jpg (33.7 KB, 409 views)
File Type: jpg Fullscreen capture 9112009 103501 PM.jpg (30.8 KB, 411 views)
Attached Files
File Type: dxf witeside bits dxf.dxf (151.8 KB, 16 views)
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  #16  
Old Sat 12 September 2009, 05:41
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Where is the centerline of the bit on that dxf file? Center of the bottom flat, or left side?
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  #17  
Old Sun 13 September 2009, 07:03
cabnet636
Just call me: jim
 
columbia sc
United States of America
center is at left on bottom flat this is the right profile of the bit


these are set to the right side as aspire like us to make the bit, i will get the originals

jim
Attached Files
File Type: dxf Whiteside bits dxf.dxf (15.6 KB, 17 views)
File Type: dxf witeside bits dxf.dxf (151.8 KB, 12 views)

Last edited by cabnet636; Sun 13 September 2009 at 07:10..
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  #18  
Old Sun 13 September 2009, 07:09
cabnet636
Just call me: jim
 
columbia sc
United States of America
original dxf

for whiteside 56 and 57 series bits
Attached Files
File Type: dxf 5610 cam profile.dxf (48.2 KB, 22 views)
File Type: dxf 5620.dxf (58.3 KB, 15 views)
File Type: dxf 5630.dxf (65.5 KB, 11 views)
File Type: dxf 5645.dxf (56.9 KB, 9 views)
File Type: dxf 5710 cam profile.dxf (20.7 KB, 16 views)
File Type: dxf 5720 cam profile.dxf (18.6 KB, 9 views)
File Type: dxf 5725 cam profile.dxf (31.4 KB, 14 views)
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