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29-05-2010 #1
Hello,
First of all I'm new to CNC so be gentle with me !!
I'm converting a small milling machine to CNC, and having trouble deciding what type of limit / home switches to use and where to locate them.
I'm going to use Mach 3 software, the 10amp stepper drivers from Routout CNC, and I want to cut steel on the mill.
I guess reed switches are not the best as the magnets will cause problems with steel swarf....or am I wrong here ?
There is also a possiblity I may cut some small wood parts on the mill so perpaps an optical system isn't too good either ?
I guess this leaves microswitces but which type to choose ? Normally closed normally open, button, lever, lever roller etc etc.... and also where is best to locate them....on the table and use flexible connections or fixed to the bed ?
Also if microswithes are the answer, where is best to buy them in the U.K ?
Any ideas much appreciated.
Cheers Nick.
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