Two types of nesting

Gene Davis · Post by **Gene Davis** » Fri, Oct 26 2007, 1:18PM

Are cabinets independent of nesting type?

By nesting type, I make the differentiation between that done for CNC, and that done for straightline sawing. In other words, TRUE SHAPE versus CUT LINE.

In other words, can I take a batch job or a \"room\" job, and produce nests both ways, without messing myself all up?

Brian Shannon · Post by **Brian Shannon** » Fri, Oct 26 2007, 4:43PM

Yes you can.

Michael Yeargain · Post by **Michael Yeargain** » Fri, Oct 26 2007, 8:22PM

In the e_cabinets system from the nesting area choose the radio buttons at the top left of the screen and click nest. Either radio button will produce different results.

I have found trueshape does not always give the best results. Play around with this area. It doesn't change anything in the job file.

Damon Nabors · Post by **Damon Nabors** » Fri, Oct 26 2007, 10:28PM

Gene, I have been using the cut line for the last couple months on my panel saw, and found the nesting to be very acurate.

Gene Davis · Post by **Gene Davis** » Sat, Oct 27 2007, 7:42AM

OK, tried it and everything looks good.

Question for you saw shop guys: Does \"COLLAR SIZE\" relate directly to kerf width, when nesting using true shape.

If so, and you are using a rip blade with 0.133\" kerf, do you then set you collar size to the 133?

Kerry Fullington · Post by **Kerry Fullington** » Sat, Oct 27 2007, 8:15AM

Gene,

You wouldn't want to use \"True Shape\" nesting for a shop not using CNC. This type of nest would not have \"through\" cuts to make it practical for a saw shop. The yield is better using \"True Shape\" because of the capabilities of the CNC Router.

Kerry

DanEpps · Post by **DanEpps** » Sat, Oct 27 2007, 8:41AM

I set the collar at 0\". The kerf is set in the Standard Dimensions area of Settings and Preferences.

DanEpps · Post by **DanEpps** » Sat, Oct 27 2007, 8:43AM

Here is a little more from the area help docs:

The Collar is a band around the entire edge of the sheet into which parts will not be nested. The Collar can be used to allow for slightly off sized sheets or a small amount of edge damage.

Michael Yeargain · Post by **Michael Yeargain** » Sat, Oct 27 2007, 8:46AM

I was just fixing to add that when I had another message popup from this post. Good thing I checked it otherwise we would have had a collision at the molecular level.

No telling how devistating that could have been.

Kerry Fullington · Post by **Kerry Fullington** » Sat, Oct 27 2007, 9:14AM

Gene,
As Dan stated, when I nest using Cut Line for a saw shop I set the collar at 0. eCabinets automatically takes a saw kerf off each edge and each end of sheet goods to allow for cleaning of the edge. In other words the largest piece you can nest from a sheet that is 48\" x 96\" with a saw kerf set to 1/8\" would be 47 3/4\" X 95 3/4\".
If you have a collar value set, then the sheet size is further reduced by the collar.
Kerry

DanEpps · Post by **DanEpps** » Sat, Oct 27 2007, 9:38AM

Thanks Kerry...I was busy exploding the Enterprise and didn't put quite enough detail in my post.

Michael Yeargain · Post by **Michael Yeargain** » Sat, Oct 27 2007, 10:44AM

Despite Dans preoccupied oversight, you did a fantastic job of clarifying this Kerry.

Glenn Van Reason · Post by **Glenn Van Reason** » Sun, Oct 28 2007, 4:06PM

While we are on the nesting of ecabinets, it would be good if the nesting algorythm could rotate parts independently when nesting. I have found that with some jobs by rotating a few items on a sheet 90 degrees I can squeeze a job out of one less sheet.( I get this by running the panels required through a different sheet nesting package) I know you can switch between vertical and horizontal but that rotates all the pieces on a sheet and does not take advantage of saving only rotating a few pieces can achieve.

DanEpps · Post by **DanEpps** » Sun, Oct 28 2007, 4:12PM

If you have \"Grain\" checked on your material Glenn, nesting won't rotate the parts regardless of the nesting orientation.

DanEpps · Post by **DanEpps** » Sun, Oct 28 2007, 4:18PM

here's an example of mixed rotation nesting of parts without grain.