Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: mannby on February 22, 2006, 04:32:10 PM

Title: Encoder as feed rate override?
Post by: mannby on February 22, 2006, 04:32:10 PM

Hi, Could I set up an encoder or mpg input to increase and decrease the
feed rate override?

Roger

Title: Re: Encoder as feed rate override?
Post by: Brian Barker on February 23, 2006, 05:48:07 AM

no but you can use a pot with modio or a PLC...
Hope that helps
Brian

Title: Re: Encoder as feed rate override?
Post by: mannby on February 23, 2006, 08:27:12 AM

Hi again!
Ok, but could I have two usb joysticks? One for jogging the axis and
the other to set override and maybe jogspeed and so on.

Roger

Title: Re: Encoder as feed rate override?
Post by: Brian Barker on February 23, 2006, 07:12:02 PM

I don't think so :(

Title: Re: Encoder as feed rate override?
Post by: ger21 on February 24, 2006, 08:10:16 AM

Brian, doesn't this quote from the Mach2 customizing manual contradict you here.

"It is also possible to connect an encoder (typically low resolution like those used as "digital potentiometers" in hi-fi and video equipment) and to generate a given scancode for each "click" in the clockwise direction and another scancode for each counterclockwise click."

Doesn't this say that you can use an encoder for feedrate override?

Title: Re: Encoder as feed rate override?
Post by: Brian Barker on February 24, 2006, 09:07:47 AM

This is like using the input as a button.... there are a few that have done that in the past but I don't know how it worked.