B slpine engraving operation

[halotarget360]

I'm attempting to run an engraving operation based on a SVG generated B spline but get null tool path and the dialog on the lower bar states "Not Allowed:" followed by a seemingly random edge designation depending on where the mouse is at the time. I've attempted the operation in as many ways as I can think, any advise would be appreciated.

Windows 10 64
freecad 0.17

[chrisb]

I'm attempting to run an engraving operation based on a SVG generated B spline

I think engraving works only on ShapeStrings. You might rather use a Contour path without compensation.

[halotarget360]

So forgive me if this should be obvious, I had a hiatus from freecad and have not become entirely familiar with 0.17. Is there a reasonable way to generate a shapstring from an svg? The shape I'm using is to complex to trace with good results.

[mlampert]

The constraints for engrave are not obvious, and I'm not aware of any conversation of a generic path to a ShapeString. Using a Profile might indeed be your best option. Is there a chance you can post your design so we can play with it?

[chrisb]

So forgive me if this should be obvious, I had a hiatus from freecad and have not become entirely familiar with 0.17. Is there a reasonable way to generate a shapstring from an svg? The shape I'm using is to complex to trace with good results.

You can create a font from an SVG using fontforge.
Or you set Parameters->Preferences->Mod->Path->EnableExperimentalFeatures to true and try Path->SupplementalCommands->FromShape

[halotarget360]

While it is certainly rough, the from shape command gets it close enough to hand edit. You sir have my extreme gratitude

[chrisb]

While it is certainly rough, the from shape command gets it close enough to hand edit. You sir have my extreme gratitude

You're welcome. The "From Shape" should follow exactly the contour, where do you have defects making it rough?