From: Rob Danielson (email suppressed)
Date: Sat Feb 21 2009 - 17:56:46 PST
At 11:45 PM -0500 2/20/09, owen wrote:
>sync schmynk.
>owen
Exactly!
Once synchronous motors are up to speed, they'll run exactly the same
speed. Usually 1800 rpm. Here are some motors I found, I bet you can
find some cheaper:
http://www.surplussales.com/motors/Motors-2.html Maybe 1/4 HP?
With these motors driving the projectors, you thread your head "sync"
frames in the gate and power-up both motors/projectors at once. One
projector might come up to speed a frame or two faster every time, so
you set the sync frame on that projector back a frame or two.
One can drive a Pageant projector with an external motor by extending
the threading knob shaft with a coupler and use Boston pulleys and a
belt. I can go into it further if this seems like something you'd
like to pursue. Contact me off list <email suppressed>
One motor would be very elegant but it would tend to lock down the
mechanics and thus, the optics and the projection angles. If the dual
projectors were powered by your bike chain, that might be a good
thing. This solution also starts and stops in perfect schmynk. Rob D.
>On Feb 20, 2009, at 9:11 PM, Tony Conrad wrote:
>
>>Since any standard projector is running on a non-sync motor, this
>>will almost always require changing the motor(s).
>>
>>That said, there are lots of ways to handle this -- with selsyn
>>motors, line-locked motors, etc. I've seen two projectors running
>>on ONE motor with a chain link drive.
>>
>>But in short, be prepared for some heavy lifting -- mechanical
>>and/or electronic.
>>
>>----t0ny
>>
>>
>>On Fri 02/20/09 6:33 PM , Adam Hyman email suppressed sent:
>>>I just came from MOCA's Dan Graham exhibit where they had two rooms
>>>withsynced up 16mm projectors. Not that I know how, but that's a lead to
>>>pursueif no one else on the list has an idea, but I bet about 30 people do.
>>>
>>>
>>>On 2/20/09 10:42 AM, "Lisa Oppenheim" .NET> wrote:
>>>>Anybody know how to sync 2 16mm
>>>projectors?> No sound, just images.
>>>>Any insight would be most helpful!
>>>>Thanks,
>>>>Lisa
>>>>
>>>>
>>>__________________________________________________________________>
>>>For info on FrameWorks, contact Pip Chodorov at
>>>om>.
>>>
>>>__________________________________________________________________
>>>For info on FrameWorks, contact Pip Chodorov at om>.
>>>
>>>
>>>
>>
>>
>>__________________________________________________________________
>>For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
>
>
>__________________________________________________________________
>For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
-- __________________________________________________________________ For info on FrameWorks, contact Pip Chodorov at <email suppressed>.