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Help with v-carving images

I’m trying to set up some G-code for my inaugural cuts when I get my maslow set up next week.

I’m trying to V-carve this image:

I’m trying to use F-engrave in v-carve mode. and get this:

This has a lot more movement than I’d expect for a straight line, like at the bottom line.

So here’s what the g-code looks like in ground control

All those red and green circles are Z axis movement, right?

Here’s a closeup.

That’s a lot of needless z-axis movement, for what should be a straight line…

Anyone have thoughts?


I not an expert at engraving or the program you’re using, but my understanding is that engrave functions attempt to cut the full width between the two bounding contours by adjusting the depth of the cut.

In your case, the curves appear to change line weight/thickness throughout; they are not perfectly straight lines and curves. My guess is the cutter is constantly moving up and down to compensate.

Haven’t used FCarve either, but @Hentsch has likely nailed the problem.

I would try cleaning up the image.
@Sharpsburg_Woodworke has a description and videos showing a straightforward method to trace images here that will hopefully fix your issue.

@mrgnstrn: As a side note, I have Arrow of Light plaques on my to-do list by early March. If you do solve this issue, any chance I could trouble you to post the cleaned image ? TIA

Your original image has nonuniform line widths and some wavy lines on the upper arch and around the fletchings and arrowhead. If you just want a standard line width throughout, you might try tracing this to vector, setting the line width and then setting it to v carve and that would remove all the z movement because everything would then be the same.