On 7 June 2012 05:11, Ralph Stirling <[email protected]> wrote: > I'm putting together a little 3-axis system with a horizontal rotary > table (like a C axis), an X axis, and a Z axis. I'd like to program > it as XYZ, though, so I need some kinematics to convert XYZ to XZC
You might not need kinematics. For a constant diameter it is simply a case of setting the C-axis scale to suit the radius. You can then wire the Y-axis commands directly to the rotary actuator and run G-code in YXZ space. If the radius changes during a job then it isn't quite than simple and you probably do need a simple kinematics module. That will require the Z-axis to be accurately homed to absolute position relative to the axis of rotation. One wrinkle will be the axis speed limits, as your Y-axis physical speed limit is much higher at large Z than at small Z. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
