Engraving "Z" mystery

[crash]

This thing is a mystery to me. For background I drew the left half of the butterfly then mirrored it to make the right half. CamBam didn't join the squiggley on the right side. I use Cadkey foe my Cad program. I chose to engrave the squiggleys so it would cut centerline. Well OK I get Z+0.290 instead of -0.110 for a cut depth! The profiles did just right. I could edit the code but I wanted to know if I found a problem. Did I make a mistake or have I found a gremlin? Chances are great the problem is between my ears!
Jerry

[10bulls]

Engraving mops work a little differently to other mops.
They are designed to 'follow' geometry, in 3 dimensions.
First of all, notice the squiggles have a Z=0.4 height (you can see this by 1) click the squiggle then 2) clicking
the [...] button after points property for the polyline.

So as the target depth is -0.11, it 'follows' the source geometry at Z=-0.11, but as the geometry has a 0.4 Z offset, this ends up at Z=+0.290.
I know it sounds a bit odd, but it is designed this way to handle 3D lines properly (?!).

You could either manuall edit the point list and set all those Z's to 0, but easier would be this...

• select all (ctrl+a)
• edit the common transformation property
• Set the 3rd value down and across to zero.  ie.
  1 0 0 0
  0 1 0 0
  0 0 0 0
  0 0 0 1
  
• OK, the transformation, then do Edit->Apply Transformations

I hope this helps!

[crash]

I said the problem was probably between my ears. That worked. I don't know how that happened. I will do some searching in my cad program. It may draw all Z @ 0.4 Thanks for your help.
Jerry