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Aerobatics(at)aol.com
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 Posted: Mon Jun 12, 2006 8:17 pm Post subject: Camera Mount |
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Can you buy that mount?
Dave KF2
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lcfitt(at)sbcglobal.net
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| Posted: Tue Jun 13, 2006 6:55 am Post subject: Camera Mount |
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Dave, I wish I could produce them. Maybe someday if I can figure out a way
to tool up for it. It was all a oneoff project with a lot of trial and
error. I'll post some more pictures on the sportflight site in it'spresent
version. For camera control, I use the infrared remote mounted near the
camera with the IF LED repositioned to the front of the camera and push
button switches hard wired into the appropriate traces on the remote circuit
board.
The bug wiper is a roll of the clear plastic that MotoCross racers use on
their goggles. It is advanced by a miniature servo with stops removed driven
by a 'servo tester". Miniature solenoids push the buttons on the side of
the camera for focus and f-stop. Camera movement is controlled by the
cables.
Lowell
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torgemor(at)online.no
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| Posted: Mon Jun 26, 2006 4:29 pm Post subject: Camera Mount |
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Well done Dave,
calling someoneās project "horrible" is pretty callousness, I'll say, -you
should know better!!
Lowells solution to his problem is a piece of art that not anyone can
copy.
This is his solution to a problem he could not solve with use of
"electronics", -think about that!
OK., -dealing with "high" torque motors and feedback is not for anybody to
solve, as it can be "very" difficult!
On this list there's lot of people representing all kind of tech.
Who am I, well -work with aviation electronics, and with those gyro
stabilized (and non stabilized) camera platforms hanging under a
helicopter, or installed into an ordinary aircraft..
(This one made me angry.)
Sorry.
Torgeir.
Do not archive
On Sun, 25 Jun 2006 23:02:09 EDT, <Aerobatics(at)aol.com> wrote:
| Quote: |
In a message dated 6/25/2006 9:44:37 P.M. Central Daylight Time,
lcfitt(at)sbcglobal.net writes:
Thanks for the "horrible" report, but you really don't know what you are
talking about and the only way you will change my mind is to make one,
shoot
some video and let me see it.
Actually, I have experimented with servos and with the budget I have and
what is out there - they don't work. I talked to a guy over the weekend
that is working on a still camera system and for that they will work
fine,
for video, even with 5 pole digital servos you will see the pulse of the
step movement in a slow pan. I guess you can essentially filter this
out
with stabilizing gyros, but then you are talking some bucks.
Being always willing to learn something new - do prove me wrong. If you
work for the government on secret weapons systems all bets are off, but
if
you can prove me wrong with common off the shelf servos, I am all ears -
eyes.
Lowell
----- Original Message -----
Sent: Friday, June 23, 2006 12:40 AM
Actually that's what I do for a living....radio control... here are a
few
ideas.
Do not use pole motor servos, use coreless, and a quality one at that.
For
camera panning, I would think torque is better than speed. At least
150 inch
ounces. You can now get servos well over 300 inch ounces. If you choose
Hitec, buy the programmer and set dead band to min. Another thing, try
not get a
huge amount of sweep of camera, but set max throws on servos. This is a
very
common mistake. Set throws to 150% each way. This alone will make a
dramatic
difference.
Having never done it, I still think it can work.
Friction is a big no no. That will make the panning sticky.....
Call me if you need some help
Dave
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Aerobatics(at)aol.com
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| Posted: Mon Jun 26, 2006 4:44 pm Post subject: Camera Mount |
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I never said horrible?
Anyway that camera mount is brilliant.
A good friend of mine is a software engineer for a company that makes those ball cameras that get mounted on helicopters and such. I got some insight how they work. It is very sophisticated.
Physics play a huge role to deal with the basics, getting the CG and pivot points correct, the rest is electronic compensation using very high gain solid state gyros and servo motors.
I think its really cool someone is trying to make one for average photography.
Dave
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torgemor(at)online.no
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| Posted: Tue Jun 27, 2006 1:00 am Post subject: Camera Mount |
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Iām very sorry Dave, my apology.
The one this was meant for is "dominique".
Torgeir.
do not archive.
On Mon, 26 Jun 2006 20:43:48 EDT, <Aerobatics(at)aol.com> wrote:
| Quote: | I never said horrible?
Anyway that camera mount is brilliant.
A good friend of mine is a software engineer for a company that makes
those
ball cameras that get mounted on helicopters and such. I got some
insight how
they work. It is very sophisticated.
Physics play a huge role to deal with the basics, getting the CG and
pivot
points correct, the rest is electronic compensation using very high
gain solid
state gyros and servo motors.
I think its really cool someone is trying to make one for average
photography.
Dave
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Aerobatics(at)aol.com
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