nesting

[Brian O]

I have a job requiring 3 parts in a quantity of 32pcs and another part with a quantity of 64pc. I can nest either the 3 parts or the 64 parts but not both in the same nest. Is this not possible in Vcarve or Aspire. I can do it in another program (Cutlist Plus) but I will have to manually enter the parts per sheet as it did it. A lot of sheets (20) are duplicates so it won't be so bad but it would be nice to know if I could do it in Vcarve.

[Charlie_L]

I don't know a slick answer, but how about making an extra copy of the item you want 64 of. So you would have two of the side pieces. Then, when you nest 32 copies you end up with 32 of the other pieces and 64 of sides. Would that meet your needs?

[hinmanl]

Brian,

If there is a way to figure this out automatically, I do not know it.

I just played with the shapes you provided and the least number of sheet I came out with was 22. There were 16 sheets with 4 ROT/shelves (same height), 2 backs & 2 sides (same height). There were 5 sheets with 6 sides/backs. The last sheet had 2 sides/backs.

I just played with the layout and tried different combinations of ROT/shelves & sides/backs; the height is what drove the arrangement.

Lynn

[Michael Mezalick]

Since I don't use the nesting feature I'll beg for your forgiveness first.
But,
I tried nesting all the items and it seemed to work for me,,unless I don't understand what you are trying to do.
I get 20 sheets.
This was using V-Carve 7.506

Michael

[hinmanl]

Michael,

Let me say right up front, I am not a cabinet maker.

That would work. The one issue I assumed (probably wrong) was that he needed to maintain the vertical grain direction. I do not know if the sides being rotated would make a difference.

Now to show my ignorance, do you have to allow an allowance for the cutter? Reviewing your attachment, the parts are joined by a common vector/line. Assuming you cut on the outside of the line, would it make the adjoining part the diameter of the cutter that much smaller?

Learning everyday.

Lynn

[Michael Mezalick]

Good point Lynn,
I didn't think about the grain..and yes ,,the spacing for the bit,,,,, oops...
Thanks for point that out..
~M

[Michael Mezalick]

But there is an option NOT to rotate the items.....that would take care of the grain...correct ?

~M

[JohnnyCNC]

Yes there is, Michael. And I agree with Charlie too. Make two of the part you want the 64 of and nest all together. If grain matters, make sure the parts are aligned with the grain initially. Set the rotation to 180°. All of these parts are rectangular, but if they were odd shaped, being able to rotate them 180° might help on spacing.

[Gary Campbell]

Brian....
This is one of those cases where a nesting software will not do as well of a job as the human eye & brain. The 5 parts for one cabinet, plus any 2 others will fit on a given sheet. Which means that each sheet holds 1.4 cabinets. 5 sheets will do 7 cabinets. Make 5 files, rotating the parts for equal yield, cut them 4 times each... 28 cabinets. Do the math and drop out a few on the next 3 sheets to cut the remaining 4 cabs.

[Michael Mezalick]

I guess I’m not understanding what the issue is.
If you could nest different shapes, each with their own number required ( 64 and 32 for example ) why would it be better to have two of the same shapes each with a quantity of 32.
You would still get the same results,,,,,, correct??

~M

[Charlie_L]

I guess I’m not understanding what the issue is.
If you could nest different shapes, each with their own number required ( 64 and 32 for example ) why would it be better to have two of the same shapes each with a quantity of 32.
You would still get the same results,,,,,, correct??

~M

I think you are right. As a "seldom nester" I forgot about that "individual" aspect of nest copies. Oh well....

[hinmanl]

Got home tonight and reviewed the nesting procedure in Aspire 8.0 and the posts. Not sure if this applies to previous versions. I overlooked the ability to input the tool diameter and clearance to ensure I had the minimum clearance requirement. Brian, in the end, I believe you can do this automatically in Vcarve as outlined by everyone below; you should not have to use Cutlist Plus.

Thanks everyone for the great discussion. This will help me when I create my cut list for the linker log project houses I am getting ready to do.

Lynn

[Brian O]

First off this is grain direction sensitive. I also altered the sizes a little from the previous attachment.FWIW this is laminate sheets that I need to cut to re laminate cabinet interiors on the job site. Ok now back to the issue, I can only nest the parts in the quantities needed if I duplicate the sides as suggested. When using v carve I come up with 24 sheets, In cutlist plus I get 20. Those four extra sheets would cost me an additional $320. When I try to nest the sides and then the other parts I get a warning (If you nest new data, any existing data on sheets will be lost.Do you want to continue?). Am I missing something here? Anyway I only have to draw four sheets to simulate the cutlist layouts.Thanks for everybody's inputs.

[james mcgrew]

Laminating interiors in the field,,,, Ouch I sure hope this is a job and not a spec mistake.

[Brian O]

Jim,
Yea it's a job. The original millworker contractor slipped in black melamine for open cabinets in the specs and now the owner wants them to match the surrounding finishes. This is in a new hotel under construction I was already working in and the GC asked me to do it because the other millworker is a out of town sub and they need it pronto. I really don't care for this type work but you got to take what you can get.