Hello! I have a question - which is better way for homing in a cutting head with 2 rotary axis - A and B. I see 2 possible solutions: 1) encoder on the axis working in a way that ech time I turn on the machine EMC remembers the position of the encoder so that i can manually move A and B axis as close to 0 as possible 2) homing sensor - i have no idea, how to implement homing sensor on a rotary axis so that it is in a middle of the movement range - it seems to me that usual homing sensors are not suitable. Please correct me, if I am wrong. Or maybe should i use some kind of priximity switch?
The idea is to have a cutting head with 2 rotary axis - A and B. Each axis is expected to travel within range from -50 to +50 degrees. Axis will be moved by stepper motors, because they are better in holding their position than servos. Servo with some brake might work, but that seems to be too difficult for me :). I really would like to have the home position in the vertical position of the cutting nozzle - that is - in the middle of the movement range, because I expect that usually the head is not going to be tilted more than 10-15 degrees, and also tilting angles more than 40-45 degrees put a stress on high pressure tubing which is what i do not want to do without real necessity each time i turn on the machine. How do those, having 5 axis routers, solve this situation? Thank You in advance for any suggestion or insight! with best regards, Viesturs Lācis ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
