Hello everyone. I am assembling a Lowrider on a SKR 1.2 board. I need a CNC for cutting car mats made of Eva material. I know that they can be cut with a Drag Knife, but I have not found a way to make a G-code with compensation for cutting with a knife. I have read all the topics on this forum searching for “offset drag knife” and just “drag kife” and have not found an effective way. The knife will be of the weather vane type with a wide blade at an angle. I installed Estlcam and tried to connect my SKR to the computer, this CAM does not see SKR (or I do not know how to configure it). I see that Estlcam CNC has a DRAG Knife button, but as far as I understand it only works with a computer connected and configured CNC. Please help me with the solution.
The problem is that EstlCAM does not generate gcode for a dragknife but has an option in the controller part that alters any gcode on the fly for the use of a dragknife.
Fluid expects the offset to be calculated in the gcode though, which means that you can’t use those two together. Really stupid. 
It really is. Maybe someone has experience working with such a knife and uses another CAM program with the SKR board? Or does it use external plugins or addons to convert G-code to work with Dragknife? I found a plug-in for Fusion 360 to compensate for cutting with a knife and a postprocessor for Lowrider, but the problem is that at the moment Fusion does not work in our country and this option does not look simple to me.
I have no idea, I have never seriously used anything else but Estlcam. There are people who have used drag knifes before, like me, but only the very little ones with 0.1mm offset so it does not matter too much to not have the correction.
Why doesn’t Fusion work? Did you think about using a VPN?
@Antonio , did you happen to come across this thread?
But I believe SW is still a challenge.
Here is a free VPN you can try. https://protonvpn.com/
Thanks for the idea. yes, I can use vpn. I tried using fusion 360, but I don’t remember why it didn’t work out.
Thanks for the interesting discussion about the tangential knife. Yesterday I spent the whole day studying this information. Maybe I’ll try to make a guided knife. I have already printed a motor-driven knife holder on a 3D printer. I will assemble the lowrider only after September 15, when all the missing components such as rails, bearings, pulleys, and running screws arrive.