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Author Topic: Proportional control Joystick  (Read 6065 times)

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Proportional control Joystick
« on: May 28, 2007, 05:24:31 PM »
I have been reading many posts about "Keygrabber" and joysticks but it appears that none of them applies to
a proportional analog joystick.  I like the jog speed to be controlled by the force/movement of the joystick, not just go or stop.

The Mod-IO board has three analog inputs but I have not seen it used with analog joysticks.  Is the proportional speed control available and how is used?

If not available, it would not be too difficult to use an analog joystick to generate a variable rate pulse train and feed it to the MPG input.

Comments? Suggestions?
Thanks in Advance,
Bertho
Re: Proportional control Joystick
« Reply #1 on: May 28, 2007, 10:51:26 PM »
It will do proportional if you use a joystick that is  proportional... it will not work with keygrabber.
Fixing problems one post at a time ;)

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Re: Proportional control Joystick
« Reply #2 on: May 28, 2007, 11:43:42 PM »
Thanks,
That is great!
Any suggested brands & models?

Offline Chaoticone

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Re: Proportional control Joystick
« Reply #3 on: May 29, 2007, 01:55:25 AM »
Bertho, check out this thread. The joysticks are analog, the further you push, the faster they go. The are also used for step, slow rate, rapid rate, inc. and the size of increment.

http://www.artsoftcontrols.com/forum/index.php?topic=1391.0

Brett
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Re: Proportional control Joystick
« Reply #4 on: May 29, 2007, 08:43:11 AM »
any that work in windows will work :)
Fixing problems one post at a time ;)

www.newfangledsolutions.com
www.machsupport.com
Re: Proportional control Joystick
« Reply #5 on: May 29, 2007, 09:21:58 AM »
Thanks Brian & Brett,
I saw the Keygrabber post several times but was always under the impression that it substituted
keyboard shorts, not giving proportional control.  I am off to the store to buy joysticks. 
I also ordered the ModIO so I can attach MPGs and get extra I-O functions. 
This is a great program and forum!

Bertho

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Re: Proportional control Joystick
« Reply #6 on: May 29, 2007, 10:59:23 AM »
True that.  ;D
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Offline Leeway

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Re: Proportional control Joystick
« Reply #7 on: May 30, 2007, 09:02:54 AM »
I hooked up a PS2 contoller. The joystick parts run the axes okay and from very slow creep to full jog depending on the pressure.
I won't be using it though. They are so sensitive that I had one stick in the full jog mode when I let go of the stick. A slight bump stopped it, but not a good situation. I may just not have it calibrated enough. There is a screen for that in the control panel. I think I would just rather use a keypad or a number pad. I have a USB number pad that works great. It's full speed at key press, but at least when I let it go, the axis stops.  :D
Lee

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Re: Proportional control Joystick
« Reply #8 on: May 30, 2007, 10:46:58 AM »
I will have to agree with lee on them being touchy. There are a few things you can do to help that as well but even at best, its no MPG, but for 15 bucks, very nice and funcitional.


Brett
;D If you could see the things I have in my head, you would be laughing too. ;D

My guard dog is not what you need to worry about!
Re: Proportional control Joystick
« Reply #9 on: June 08, 2007, 10:56:39 AM »
Hello Bertho,

Did you have any succes on using analog inputs for jogging (i.e.: analog joystick connected via modbus)
I'm facing the same problem.

Thank you,
Kris.
Logic takes you from A to B, imagination takes you anywhere