How would you cut this?

So I need to cut 600 2x3x7ga gussets. Jim @chelanjim and I have been looking at different ways to nest them and cut them.

I am wondering does anyone see a way to cut 2 only piercing once? if so do you see any problems doing it?

2x3 gusset nestedChelan.f3d (115.4 KB)

Can you post a picture of screenshot? I don’t have f360 on my laptop and am curious what you are working on.

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I had someone PM me similar question here’s a version that does four with one pierce

4 gusset no lift.f3d (100.2 KB)

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Tin for the Win!!!

Here is Tin’s version but you might want to resize your parts slightly because everything is cut with “center compensation.”

2x3 gusset nestedChelan.f3d (112.4 KB)

Edit: Oops. I did that wrong. I still don’t know how Tin did that. You have to pick every line segment as an “open chain.” Still working on it.

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Thinking out loud would you have to draw oversized and cut on the line to share the same line? Then you could attach them with a joining line in the corner that will pretty much be sacrificed and burn away. That would cause you to do more clean up in the end.

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Like Jim was saying you would have to oversize your drawing ever so slightly to deal with kerf.

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the sketch is parametric. You should be able to adjust those numbers accordingly plus a kerf width

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It does share the hypotenuse and any bordering lines

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could something like this be used it is based on .060 kerf and has .080 gap so most if not all scrape would burn away and in theory not break the arc. sheetcam wants to treat it like a open line so correct compensation

2x3.dxf (97.3 KB)

would be needed.

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The “trick” of how I did it is the sketch

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Thank you!!! That was driving me crazy.

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Try this in sheetcam with a centerline cut

4 gussets test.dxf (3.6 KB)

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It will certainly cut the file. It opened up as each rectangle being 4x8. The issue would be in started clockwise in the simulation then cut down the first shared line then cut counterclockwise on the on the second the clockwise back to counter.

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So I am not smart enough to understand this yet (maybe never will :grinning_face: ) but, if you can do 4, could you do as many as you wanted? maybe a row 96” long all with one pierce?

Draw backs to this approach?

I could do a whole sheet as one cut or a row or whatever you want with this method.

You’re going to have to be on the ball for watching for tip ups and you could be running into duty cycle issues depending on your setup

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also if it matters one line is cut with the wrong side of the plasma steam.

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I see what you’re saying. Technically you’re doing a centerline cut not an outside cut so some of the outside pieces could be cut in the wrong direction. Good point

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Thanks for all the help guys!

This helps a lot, good info that I am sure will help others.

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Here is that approach. I did not watch for the exact dimensions of each piece but the mechanics are sound.

2x3 gusset nestedTinsMethod.f3d (110.2 KB)

Two other drawbacks:

  1. The dimensions might be skewed a bit off…really hard to expect “exact” copies since there are sides that are cut with left and right sides of the torch.
  2. No lead-ins/lead-outs so there might be some divots
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