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I've just started using LeoCAD to generate instructions for a model I want to share. I've been able to get it working despite the sparse tutorials. But in looking at my results so far I see that I've got an extra part in one step. I'm pretty sure this is a left over from duping the same part over and over again. One benefit of this is that the part must be overlapping with another part. How can I find and remove this extraneous part?

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I'm not aware of a way to do this in LeoCAD directly, but assuming that your overlapping brick is an exact duplicate (same element, same position, same rotation, etc) it will show up as a duplicate line in the LDraw file. Something as simple as this should show you what it is:

uniq -d model.ldr

You could also use any other tool for finding duplicate lines.

If you find a duplicate, it will look something like this:

1 4 -70 -48 -40 1 0 0 0 1 0 0 0 1 3005.DAT

The 3rd, 4th, and 5th items are the x,y, and z coordinates, which you can use to track down duplicate elements and remove them inside LeoCAD. Alternatively, you can remove all but one of the duplicate lines from the file directly.

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