I never create posts for my rig but I see a lot of people interested in 3 screen projection so I thought I would post my solution for reference/ideas since I had some free time this morning.
My rig uses QUMI Q2 projectors with 60.45" throw for 16:10 46" screens (24" x 39"). Projector Central has a great tool for determining throw, lumens, room lighting, etc...
You will want to be able to adjust the projectors and fine tune them for throw, angle, etc. To do this I used Fotomate LP01 macro focusing rails and mini tripod ball heads/shoe all available on eBay. Don't be afraid to buy from Hong Kong - they have free shipping, amazing low prices, and the product arrives in under 10 days. I used 2 focusing rails with a tripod head so I could adjust throw, alignment, and angle...
I built the projector frame using 8020 aluminum rails from Faztek - they seem to have best ricing and shipping costs. Since my screens are 46" at 45 degrees the projector segments are 12.75" at the projector lens throw distance (trigonometry). I trimmed the outside mounts to accommodate the QUMI size and lens offset (the lens is on the left side of the inverted QUMI) so my center mount was 12.75", left 11.475", and right 6.475" - did not want a huge frame hanging above my rig. I also used the QUMI video adapter so I could have DLP 3D synch.
For screen material I used 1/8" Home Depot vinyl coated MDF board - this stuff has awesome screen characteristics you can see here. I used black velvet projection screen tape on the borders to hide any spill over from the projects - it completely absorbs any light.
Here is a picture I took when I first turned on the system (nothing aligned yet). Sorry I did not have a fully setup picture on my PC right now - will retake one later and update. Hope this helps anyone thinking of 3 screen projection.
My rig uses QUMI Q2 projectors with 60.45" throw for 16:10 46" screens (24" x 39"). Projector Central has a great tool for determining throw, lumens, room lighting, etc...
You will want to be able to adjust the projectors and fine tune them for throw, angle, etc. To do this I used Fotomate LP01 macro focusing rails and mini tripod ball heads/shoe all available on eBay. Don't be afraid to buy from Hong Kong - they have free shipping, amazing low prices, and the product arrives in under 10 days. I used 2 focusing rails with a tripod head so I could adjust throw, alignment, and angle...
I built the projector frame using 8020 aluminum rails from Faztek - they seem to have best ricing and shipping costs. Since my screens are 46" at 45 degrees the projector segments are 12.75" at the projector lens throw distance (trigonometry). I trimmed the outside mounts to accommodate the QUMI size and lens offset (the lens is on the left side of the inverted QUMI) so my center mount was 12.75", left 11.475", and right 6.475" - did not want a huge frame hanging above my rig. I also used the QUMI video adapter so I could have DLP 3D synch.
For screen material I used 1/8" Home Depot vinyl coated MDF board - this stuff has awesome screen characteristics you can see here. I used black velvet projection screen tape on the borders to hide any spill over from the projects - it completely absorbs any light.
Here is a picture I took when I first turned on the system (nothing aligned yet). Sorry I did not have a fully setup picture on my PC right now - will retake one later and update. Hope this helps anyone thinking of 3 screen projection.
Any issues with them?
. I always wanted to hijack your thread but had some time this morning and thought this might be helpful for anyone trying to put up the 3 QUMIs. I am sure like me you tried a few other mount techniques so I did not want others to go through that :-).
