3 way projector output

Apr 12, 2011 at 10:20pm

3 way projector output

Hi everyone, does anyone know of a way to output video from a MacBook pro to three different projectors (from just the one computer? Is there a lead that goes from the laptop to three ends (rather than the usual 1)?
Cheers
J

#56279
Apr 12, 2011 at 11:22pm

matrox triple head to go is probably the most common way
you cant just split the copper.

http://www.matrox.com/graphics/en/products/gxm/th2go/

#201941
Apr 13, 2011 at 12:32am

yeah, matrox is the way to go for 3 split. right now im using a 2 projector setup but utilizing the pass-through (image duplication). anyway, here is some patcher stuff that might help if you pick one up. basically 3 windows and a full-screen toggle ;) keep in mind installing the drivers for the matrox is a HUGE pain in the ass and as sensitive as a skunk humping a hedgehog; one bad poke and the week is ruined.

– Pasted Max Patch, click to expand. –
#201942
Apr 13, 2011 at 12:13pm

Cool, thanks guys. I’ll check these out

#201943
Apr 13, 2011 at 12:28pm

Would it be possible to use one of these for a macbook pro? http://www.maplin.co.uk/svga-splitter-2-and-4-port-36773?ordercode=A94BB

#201944
Apr 13, 2011 at 2:58pm

If you want to just send the same image to 3 projectors then yes, use this sort of thing. Some projectors will also have a monitor output that can send on whatever is coming in to another projector/monitor so you can just daisy chain them.

If you want to split an image across the 3 projectors you’d need a triplehead2go.

The box you linked should work fine with a MBP VGA output, but if you are concerned just ask Maplin a question at the bottom of the page you have linked.

#201945
Apr 13, 2011 at 3:07pm

I’ve got a 3 screen multichannel patch/app hosted here (based on Vade’s patches)

http://www.aranarproductions.com/enable.html

Pardon my craptacular website… Desperately needs an update.

#201946
Apr 13, 2011 at 3:27pm

Awesome, thanks guys

#201947

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