Part Size Error between eCab twd & Rolling Nest

Chris Robinson · Post by **Chris Robinson** » Fri, Oct 05 2007, 8:11AM

A local supplier asked us to cut some 6x6 samples of melamine for their sales people. I modified a cabinet to have a 6x6 shelf and put it in the batch for qty 130 and created the twd file.

This nested a grid of 105, 6x6 squares on one sheet.

Here's my observations:
1. Rolling nest didn't use a logical, methodical cut order. It jumped all over the table with no pattern, rhyme or reason.

2. The final part size wasn't 6x6. 78 parts were 5.86x5.86 and 27 parts were 5.86x5.93. There were no discernable patterns relating to where the 27 atypical parts were found.

I have gone back and remeasured our outline tool's diameter, and it is in fact .375\". I checked the calibration of our caliper and it was consistent with the standard.

The spoilboard is in like new condition and the wasteboard is new. Not one part moved on the table. and all are square, indicating that 27 didn't slip slightly on the table.

I'll attach the files for review.

Thanks,
Chris R

Chris Robinson · Post by **Chris Robinson** » Fri, Oct 05 2007, 8:12AM

Here's the twd file.
Chris

Todd Miller · Post by **Todd Miller** » Fri, Oct 05 2007, 9:24AM

Chris Robinson wrote:
I have gone back and remeasured our outline tool's diameter, and it is in fact .375". I checked the calibration of our caliper and it was consistent with the standard.

Did you check to make sure that was the value entered into your tool diameter within the tool table? And make sure that cutter is selected as your outline tool. I have looked through your code and all of the geometry is 6" long.

Send me the export information from your controller. This will give me a better idea of what may be going on. Thanks!

Send to program@thermwood.com

Todd Miller · Post by **Todd Miller** » Fri, Oct 05 2007, 1:34PM

Chris,
In your adjustable shelf constructions settings. You have a left and right inset of .0625. Change those values to 0.0\", and all of your parts should be the right size.

Chris Robinson · Post by **Chris Robinson** » Sat, Oct 06 2007, 1:27PM

Todd,

That's the one thing I didn't look at. I was so sure (in my feeble mind) that I had selected a fixed shelf.

As for the unnecessary x/y traversing...there were alot of wasted time because the control sequenced a square here and there and not in a logical format relative to machine home.

Thanks,
Chris

Forrest Chapman · Post by **Forrest Chapman** » Sat, Oct 06 2007, 4:15PM

Chris,

Did you have selected (go to nearest part) or (smallest to largest) in the outline order. If all your parts are the same size I would try switching from one to the other. Make sure you have (all thru cuts last) checked or you might lose parts.

Forrest

Chris Robinson · Post by **Chris Robinson** » Mon, Oct 08 2007, 7:50AM

Forrest,

I'll have to go back and double check to see which one is selected. I know for sure that all through cuts last is selected.

Thanks,
Chris

Thermwood / eCabinet Systems

Part Size Error between eCab twd & Rolling Nest

Part Size Error between eCab twd & Rolling Nest

Re: Part Size Error between eCab twd & Rolling Nest