Camera For Touchoff

I continually forget there’s anything else :laugh:

A little enhancement:



Plus if you use Axis it sets Gregs new refresh HAL pin to refresh the Preview display.

I have attached the file here and also to the first post in this thread, the cam_align_origin.ngc file is no longer required so an edit to the ini file is needed, the [MDI_COMMAND_LIST] section should be changed to:

thank you i really appreciate it

Actually, auto edge detection with the USB camera does not look too hard. You can look for edges in a video stream in 15 lines of code:
medium.com/@akash555bhiwgade/edge-detect...d-webcam-8f980c79a86

So if you started in the middle of the sheet somewhere, you'd move along the X axis towards 0 until you find an edge. Then centre the camera crosshairs on that edge (you may need to set the mm per pixel to coordinate motion. Save that position. I think the system would allow you to read coordinates along the edge so you could calculate the angle to follow to the home position.

Then move along the Y axis in the direction determined until you find a corner (another 15 lines of code) and you are there. Save position and rotate axes.

Only problem is I don't have a USB camera but I think a proof of concept could be achieved with a couple of photos of the sheet. I might try that.

I think it would be quicker to do it the way it is.

I think the scope creep on Rod's idea is you end up detecting all edges on used material, so you can thread the needle on nesting tightly ad hoc...shall I go put in a feature request?