Hi

I use Inkscape to create DXF file for CNC

I have simple CNC machine which can import DXF (convert automatically to Gcode)

What I can't find is the place I determine the toolpath diameter

Is it included in DXF? How do I determine toolpath in Inkspace?

Welcome to the forum!

I'm not sure what you mean by "toolpath diameter".  Are you talking about the diameter of the cutting tool, on your machine?  If the machine automatically converts to gcode, I would think the machine should have some option for setting that.

But possibly you're talking about the width of the path, on the Inkscape canvas?  If that's what you mean, it's here:  Object menu > Fill and Stroke > Stroke Style tab > Width

First, select the path you want to edit, then change the Width value.  Then Save As DXF.

Thanks for the answer

I meant the end mill diameter 

I also assumed the machine SW will let me determine as I assumed these parameters are not part of DXF

But I did not find where to set it up

See attached PDF (section 3.3.8.5) and screenshots of import dialog

Ok.  Well I'm someone with zero experience with any kind of cutter.  My only experience comes tangentially while trying to help people with Inkscape.  I could probably spend a couple of hours perusing the PDF file you shared, and I might find the answer for you.  But I'm afraid I don't have that much time.  After about 20 minutes, here's what I found.

Look at section 3.3.2 State Panel.  At the bottom of that panel, see where it gives "Tool" and several parameters about the tool.  My best guess is that's what you need to fill out.  Somewhere you have to tell the machine which tool to use.  Then you might need to fill in a couple of settings, or the machine might fill in everything for you.  That's my best guess.

Inkscape knows nothing about what tool you might use.  Inkscape doesn't even know what kind of machine you have (or whether you have one at all).  So if that info needs to come from the DXF file, there needs to be some other step where your machine puts that info in the DXF file.

Inkscape has several extensions which will produce gcode.  So if you wanted to approach the project a little differently, that might be an option.  I do know that in one of the gcode extensions, there is a place to define the tool.  (That's what tangentially gives me the idea that you are lacking the tool definition.)

Hhmm, a quick look at the Index of the PDF, it looks like the Tools section is covered on pg 76.  And I see some other references further along.  Have you defined the tool yet?

Edit

Yes, see this on pg 76

3.3.11.15.3 Tools / Select
Software cannot detect if a tool is mounted or which tool is mounted. This option informs software of the
actual tool status to initialize tool change procedures.

thanks for your effort

usually I create the gcode by other SW and there I determine the tools, and the gcode is created accordingly, the machine just executes.

But in the case of importing DXF from Inspace, I did not fine a way to set tools while the machine itself imports the dxf and creates gcode.

At least you verified it is not part of dxf