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Messages - rhdwillis

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General Mach Discussion / Re: Kerf problems on multiple parts
« on: May 22, 2014, 09:11:48 AM »
ok, I have been struggling with this problem still. I have managed to capture a video of it on my computer and upload it to youtube. If you watch the video the problem occurs after the lead in of the second circle. The machine cuts the lead in just fine and moves to account for the kerf but at the end of the lead in and the beginning of the circle it does a small loop before moving to cut the circle.

https://www.youtube.com/watch?v=pkffEqdcZ1c&feature=youtu.be

any help is greatly appreciated

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General Mach Discussion / Kerf problems on multiple parts
« on: May 03, 2014, 11:57:14 AM »
Hi all. I'm a pretty new user to Mach 3.

A little about me is I work for a large structural steel fabricator, and I recently custom built a 15'X125' 6 torch oxy fuel table for them. I installed Mach 3 on it and we have been using it since January. We are currently using ProNest to generate all of our cnc files for the burn table. I have managed to work out a lot of the bugs with our system; most of them due to my setup error, but now there is one problem that has me stumped. We are nesting many large plate together on the same sheet of material, my problem I believe is with the kerf compensation. It works perfectly on the first part always, but never on any parts after. If I break the nests up into individual pieces they all work just fine. The problem only occurs with multiple parts in the same program.

What it looks like it is doing is starting out just fine, then  by the time it get the the next corner of the part it is on the wrong side of the line (ie. it started on the left side of the line but ends up on the right side when it gets to the next corner). This only happens after the first part. I have attachted a program that we are having trouble with if anyone would like to take a look. Any help is very much appreciated.

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