I have to admit I don't have a vast amount of experience of the internals of EMC but it shouldn't be difficult to probe the whole sheet then generate a correction matrix that is used before the G-code is generated. Probing a large sheet would be very time consuming.
Do you need this for engraving? If so, you may be better off using a floating head. The cutter is held in a lightweight belt driven spindle. This spindle is free to move up and down on a vertical slide that is mounted on the Z axis.. On the end of the spindle is a plastic guide. The guide runs on the surface of the material and your cut depth is controlled by the cutter projection through the guide. This is quite common in engraving circles and can compensate for quite large variations in height. As long as the spindle is fairly light you won't scratch the surface. I have made many thousands of engraved parts this way. Another possibility is to use a variation on plasma torch height control. This uses a distance sensor to monitor the material height while cutting and can dynamically adjust the Z to compensate for variations. Les Kai Schaeffer wrote: > I am not sure. Let's say you have a movement over the whole sheet. How > could you correct it if you have a little buckle in the middle? > > I would say it should be a layer somewhere between the vector generation > and the hardware. What does "it wouldn't be trivial" mean in man-months? > > Regards, > Kai > > > ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
