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1hand's CNC RT

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andyf:
I think it's the same unit plus a block it plugs into, Peter.  Same eller also shows this:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280615997099&ru=http%3A%2F%2Fshop.ebay.com%3A80%2F%3F_from%3DR40%26_trksid%3Dp5197.m570.l1313%26_nkw%3D280615997099%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1

For Z-axis setting, couldn't you do much the same with a block of known height, a battery, led, croc clips and a bit of wire?

Andy

HS93:
as I am realy stupid , how does the block work ?

Peter

andyf:
No doubt Matt will enlighten us, but I imagine it contains insulation between the top and bottom surfaces, so that when the cutter is lowered to touch the top, it completes an electrical circuit via the metalwork of the mill, and lights up a led.

Andy

1hand:

--- Quote from: andyf on January 18, 2011, 12:47:56 PM ---No doubt Matt will enlighten us, but I imagine it contains insulation between the top and bottom surfaces, so that when the cutter is lowered to touch the top, it completes an electrical circuit via the metalwork of the mill, and lights up a led.

Andy

--- End quote ---

Yup, your right. works the same way when you take it out of the block and use as an edge finder.

Matt

AndreasL:
Thanks!

Cost less then expected.  :thumbup:

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