Midi control of Pan/Tilt

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Rob Goldberg

Hi Folks. I am getting up to speed daily with QLC+ and rapidly building a pretty cool virtual console for my setup.

Tomorrow I am getting two Chauvet Intimidator Scan LED 300's. I currently have a Chauvet LFS75DMX that I use for gobos and as a follow spot (manually moved around of course).

I would like to use a scanner as both a gobo projector and as a follow spot. It seems the ideal way to use anything electronically as a follow spot would be to have a joystick controller.

Can anyone tell me ideas of how I might get the Pan and Tilt parameters of a scanner controlled with a joystick. My entire rig is DMX controlled.

Thanks,
Rob
david garyga

Hi,

http://www.qlcplus.org/docs/howto-input-profiles.htm

See section "Sliders movement properties"

You want to use Relative Movement

Cheers
Rob Goldberg

I get an error when trying to access the link you provided. Can you access it?
Rob Goldberg

I found something at:

http://www.qlcplus.org/docs/howto-input-profiles.html (note html, not htm).

What I have ordered is a joystick from an Atari 2600 that was converted from serial to USB. Can you give me an idea of how to set that up. I will also be using fjoymidi to map the usb to midi(unless someone has a better idea - that was the only software I could find that was still viable with Windows 8 to map USB to midi).
Jano Svitok

Rob, I don't have a joystick, but with HID plugin you should be able to use joystick directly. See http://www.qlcplus.org/docs/hidplugin.html Works in Windows and Linux, no OSX as I understand it. I'd try joystick-MIDI translator only after HID approach fails.

As David correctly mentions, don't forget to set your sliders to relative mode in the input profile.

Start with Logitech Wingman Attack 2 built-in profile, it may be all you need if the two joysticks are similar enough.

Note: http://www.qlcplus.org/docs/ is the same content as online help in QLC+.
Rob Goldberg

Hi folks. So I got my USB joystick today and have done my best to set it up. I created an XY axis on my virtual console which is what it seemed like I needed to do. Was that right?

The problems I am having now are:

1. When I let go of the joystick, the image keeps moving briefly. That puts it out of position.

2. The image is drifting while I am not holding the joystick. It will stop for a moment and then start drifting, not always in the same direction.

For a first try I am pleased that I have it working at all. But unless I can do something about the above two issue it won't really be useful for me because I want to control pan and tilt to use it as a follow spot.

Any suggestions to help me make it more precise would be greatly appreciated.

Rob

P.S. Just did some testing. Turns out the issue I am describing have nothing to do with the physical joystick. I set the Profile back to None, unplugged the joystick, and just created an XY Pad to control with my mouse. I have the same two problem, movements don't stop when I stop moving the pointer and the image is drifting even when I am not moving the XY pointed in the XY Pad.

P.P.S. Did even more testing. It looks like it's just an inherent quality of the Chauvet Intimidator Scan LED 300. I would have hoped that $600 fixtures would be more precise than that but apparently they are not. Unless anyone knows something about these particular fixtures who can advise me.
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