One common THC test that I have seen done many times is to cut some corrugated sheet steel. If your THC can follow that at speed, I think you are all set. It does seem to be an extreme test, perhaps over the top, but it is impressive. :-)
Dave On 2/3/2011 1:18 PM, Kirk Wallace wrote: > On Thu, 2011-02-03 at 21:21 +0800, Yi-Shin Li wrote: > >> On Thu, Feb 3, 2011 at 2:44 PM, John L. Craddock< >> john.cradd...@xitech.com.au> wrote: >> >> >>> >>>> -----Original Message----- >>>> >>>> http://www.youtube.com/watch?v=BraEMAu5UkY >>>> Video clip for plasma cutting for 6mm mild steel. It's with >>>> EMC2, a USB based THC/motion interface, and 3Amp/axis >>>> low-cost micro-stepping drivers. >>>> The Plasma Cutter is HYPERTHERM PowerMax 45 with machine >>>> interface. The EMC2 is patched with NURBS motion and S-Curve >>>> velocity profile. >>>> -- >>>> Yishin Li >>>> >>> Very interesting Yi-Shin. Can you tell us a bit about the USB THC? I >>> couldn't see any initial height sensing mechanism from the video. >>> Best >>> John C >>> >>> >> The prototype machine lacks Z axis sensor for initial height >> probing. Currently, we use manual touch-off for initial height sensing, >> which is quiet inconvenient. We are drafting the mechanical design for >> initial height sensing. Any advice would be appreciated. >> Regards, >> Yishin >> > I'm wondering what the USB/THC loop latency is. A flat constant > thickness plate might not tax the system enough to bring out the true > loop behavior. But so far, your machine seems to work very well, good > job. > ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
