>A picture truly is worth 1000 words.... > >So, to cut a zero length pipe, you put the pipe chuck all the way to >the left and the torch carriage all the way to the right. > >To cut a 500mm pipe, you move the pipe chuck 250 mm to the right and >the torch carriage 250mm to the left from the "zero length pipe" >position. > >To cut a 6000mm pipe, you move the pipe chuck 3000mm to the right and >the torch carriage 3000mm to the right from the "zero length pipe" >position. > >The two carriages always move the exact same distance but in opposite >directions. > >Does that work? > That seems to be as I understand it then. Two configs is no problem as the machine will only do one at a time
>One problem would be that when running pipe work you need a different >machine configuration, such that when the g-code says to move 600mm, >LinuxCNC sends 300mm worth of steps to both axes. When doing table >work and the g-code says to move 600mm, LinuxCNC sends 600mm worth of >steps to the table axis only. The straightforward way is to re-start >LinuxCNC with a different configuration. You might be able to do some >clever HAL stuff to make the switch without restarting. > >One question: why not make the pipe chuck be a U axis, the torch >carriage is X, and let the g-code programmer have complete control of >what happens? Move pipe only, torch only, or both, under g-code >control. Not sure I understand how to use the U axis. I will be using the sheetcam rotary plugin to do the gcode. I will have to look at the usage of a U axis before I can decide on that. > > >-- > John Kasunich > jmkasun...@fastmail.fm > >------------------------------------------------------------------------------ >_______________________________________________ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
