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Author Topic: Z limit Switch with a touch pad  (Read 7848 times)

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Offline Hood

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Re: Z limit Switch with a touch pad
« Reply #20 on: March 27, 2011, 02:42:03 PM »
Quote
I wonder why Mach only gives you 5 inputs and so many outputs

Afraid its the parallel port and not Mach thats the problem. With a second port (as long as its an enahanced one) you can set pins 2-9 as inputs but on the first port you cant or you wouldnt have any outputs for motors ;)
Hood

Offline bajadave

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Re: Z limit Switch with a touch pad
« Reply #21 on: March 27, 2011, 05:02:02 PM »
Thanks guys for all the help. I found a parallel/serial port card in my wonderful box of odds and ends... I'm going to install it later today and see if I can config mach to see it... Then I can have the inputs that I need.... Thanks

Dave

Offline bajadave

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Re: Z limit Switch with a touch pad
« Reply #22 on: March 27, 2011, 09:57:37 PM »
ok I have the auto tool zero working.... it comes down and touches the plate and retracts up 1".... Its not suppose to come down and touch then retract a few hundreds then slowly come back down at a slower jog... I seen a video of one doing that....

Offline Hood

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Re: Z limit Switch with a touch pad
« Reply #23 on: March 28, 2011, 07:09:01 AM »
You will likely have to alter the macro to the value you wish, usually there is a retract height in the macro.
Hood

Offline Tweakie.CNC

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Re: Z limit Switch with a touch pad
« Reply #24 on: March 28, 2011, 08:16:20 AM »
Some Macro's do a second touch, at a much lower speed to correct for the motor overrun of the first touch - perhaps this is what you are observing.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline bajadave

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Re: Z limit Switch with a touch pad
« Reply #25 on: March 28, 2011, 09:07:11 PM »
It's working great, Its nice to have the bottom of the V Groove bits meet up with the flat bottoms... Thanks for all your input....

Offline Tweakie.CNC

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Re: Z limit Switch with a touch pad
« Reply #26 on: March 29, 2011, 03:45:00 AM »
Glad to hear you got it sorted.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.