| The Shop > CNC |
| The basics |
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| Will_D:
Thanks for replies - I think I will leave the nut in-situ and see what happens, with Pekka's idea as backup. |
| awemawson:
My only experience dismantling ball screw nuts was unintentional a few years back :bang: I bought a job lot of ball nuts each on a short length of screw as a retainer, and fiddling with one of course it all came apart in my hands :bugeye: Fortunately it was over a tray and I retained the balls but it was quite a palaver re-assembling it ! Fiddly little things |
| Will_D:
So digging deeper and order hardware and RTFM 9all I can get) So what are "Home Switches"? Limit Switches I ubderstand, Kill Switch also. Is it some kind of auto zeroing? And one more: How to calibrate steps versus mm travelled? |
| efrench:
Limit switches kill the machine. Home switches set accurate home position. Basic homing routine is to move the carriage until the home switch is triggered, move back a small distance, then move towards the home switch at a slower speed. When the home switch is triggered this time, set the home position. This is just one homing strategy, there are several others. |
| PK:
To add confusion, many machine controllers will allow you to use the limit switches to home. |
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