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need help with input signals!
« on: August 24, 2009, 02:42:29 AM »
Hello,
I haven't got much knowledge in Mach3Mill.
So I hope you can help me to solve my problem:
I want to regulate the speed and the direction of the motors with one input signal each.
The input signal is given by a force sensor in voltage.
Is this possible?
Can you say me how I have to configurate Mach3 Mill?
Thanks!

Kind regards, Tine
Re: need help with input signals!
« Reply #1 on: August 24, 2009, 04:35:22 AM »
What kind of motors are you trying to control ?
Can you describe a force sensor? What does it output?
Re: need help with input signals!
« Reply #2 on: August 24, 2009, 05:01:43 AM »
i have got step motors with 0,05° per mm.
do you need special or more exact informations?
The force Sensor gives out voltage signals of 0-2V depending on the force.

vmax549

*
Re: need help with input signals!
« Reply #3 on: August 24, 2009, 04:30:30 PM »
Sorry but mach is a  pulse generator it does NOT have any means to use INputs to control the pulse train as is needed in your application.

Sorry,(;-) TP
Re: need help with input signals!
« Reply #4 on: August 25, 2009, 08:52:53 AM »
If your question could be changed to:

Can I change the feedrate of movement accordanly to an input (in this case your force sensor).

Yes you can. You should right a brain, that changes the feedrate in porpotion to your input signal (that in your case would be analog).

First steps: Get a pokeys, read the analog input connected to the pokeys. If you can do that, then you need to read how a brain is done, but is not too hard.

Filipe
Re: need help with input signals!
« Reply #5 on: August 25, 2009, 09:32:18 AM »
thank you filipe, that sounds very great.
I searched the Mach3Mill users manual for the "Brain" and "Potkeys" how you called it. But I didn't find any descriptions.
Maybe you can help me?

Tine
Re: need help with input signals!
« Reply #6 on: August 26, 2009, 02:21:37 AM »
For brains, look under the videos there are a good example.
For pokeys, it is a hardware piece normally cheap that can handle several inputs and outputs, including 5, if I am not in mistake, analog inputs.

Start with the pokeys to see if you can read the analog inputs. It is quite easy, then write the brains.