Hello everyone, is anyone interested in tangential cutting with oscillation using GRBL and Arduino Mega? I’m writing and planning something but I don’t know if I’m doing it for nothing…
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Grbl and GrblHAL (and FluidNC) are close cousins, so right up to here you certainly have interest.
Here you start to lose many of us. FluidNC/Jackpot or FluidNC/GrblHAL would be high interest I would think. GrblHAL on SKR Pro maybe. On bare metal Arduino… probably less interesting.
I am writing a program or graphic gui where you import an SVG or DXF file. You can make small adjustments in it. Move around the work surface, rotate, resize, you can delete lines and change the color according to the tool. You set the XY speed, Z speed, A speed (tangential), you set the knife offset if you don’t have it in the center. You set the cutting depth and height for the safe stroke. It is basically a postprocessor for tangential cutting. It still supports cutting with one tool and it works. The result is gcode for 4 axes XYZ A. No complex G commands. So I think it can work on multiple platforms, if I’m not mistaken. It also includes a gcode simulator. It simulates movement from an already created gcode. It displays the XY path and also the tool strokes and the current position and direction of the tangential axis A. I am also planning my own g code sender and you will have the choice to save the gcode or send it directly to the machine. It should also be usable for pen plotter and in the future also basic milling. When you define the tool thickness to calculate the path, number of passes and max depth limit per pass and final depth. It works on GRBL mega5x
did you ever get this to work?
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hi, it wasn’t completely under load because I don’t have an EOT or other tangential head, but I have it connected to a small frame from an old laser for testing. I have the X Y Z B A axes connected. When testing, the Z and B axes rise and fall when they should. The tangential axis follows the path according to how it is. What you see on the simulator, if you watched the reels, will also run on the machine 
I’m currently assembling the Z B axes and later I’ll start assembling the oscillating tangential head…
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@Jozef - it seems odd that you tagged a question as to whether you got things to work as a solution to your original post.
That tag is usually applied to posts that actually solve a problem.
Sorry, but I don’t understand your answer.
You marked @wcherry’s post as a solution to your question.
This was done by checking the Solution box in his post (sample from one of my threads…)
@wcherry didn’t really answer your question, or solve your problem, he only asked if you had made any progress.
It doesn’t really matter, but it seems that you were unaware of what the Solution button meant, or how it works, so I thought I would point that out to you.
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