> On Jun 16, 2017, at 12:50 AM, Kurt Jacobson <[email protected]> wrote: > > Hello all, > > Some of the videos linked in the "LCNC TED Talk style" thread reminded me > of a CNC plasma tubing notcher I designed and built a few years ago while I > was in school. I think some of you might be interested. > > As built the notcher has a capacity of 4". It consists of a rotating > pneumatically actuated chuck and a horizontal linear axis that moves the > torch to and fro along the axis of the tube. > > The fab shop I designed the notcher for usually had the client provide them > with CAD generated templates, so one of the goals of the project was to be > able to scan in these templates and generate G-code so multiple notches > could be cut. I used a simple probing sub and a fiber optic sensor in place > of the plasma tourch to scan a template warped around a tube. This was slow > but worked well and was reliable. > > For cases were a template was not provided I wrote a small MATLAB program > and GUI to generate the g-code given the joint parameters. > > I initially used Mach3 for the control, but then I switched to GRBL with a > custom interface so they would not have to keep a Win XP PC with parport > around just to run the notcher. What I would love to do is rework it to > have LinuxCNC on a BB or RPi on board with a small touch screen. It would > be fairly easy to write a custom interface so machine control, template > scanning and G-code generation could all be done from one interface. > > > A google photo album of the notcher build: > https://goo.gl/photos/RcgPV2fRfD5ChmQ39 > > > Early video of notcher in action: > https://youtu.be/uZP3JNNKDLQ > > Following a scanned template: > https://youtu.be/DsCuw9TPBeY > > Scanning a template: > https://youtu.be/QfmZeYXlU6E > > Chuck self centering small diameter: > https://youtu.be/5S8kO3-p4vs > > > TubeNotch MATLAB program: > https://github.com/KurtJacobson/TubeNotch > > > Regards, > Kurt
That's some very nice work! N. Christopher Perry ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
