Re: Need engineer for hire

John Larkin wrote:
On Sat, 24 Nov 2007 14:18:19 -0600, John Fields
<jfields@xxxxxxxxxxxxxxxxxxxxx> wrote:

On Sat, 24 Nov 2007 10:46:55 -0800, John Larkin
<jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

On Sat, 24 Nov 2007 10:23:40 -0800 (PST), Michael Brown
<mikeb@xxxxxxxxxxxxxx> wrote:

Hey all... I figured this was a good place to start.

I'm looking for someone who can take on a project for my company, to
design a very accurate PTZ mount for a small camera. The mount will
need to have a resolution of around 100,000 steps (0.0036 degrees per
step), and high accuracy positioning (repeatably it should go to the
same exact spot when it's told to via serial/network communication
interface). The camera weight will be around 1lb, so it doesn't have
to be too heavy duty. It also needs to maintain a minimum speed of 60
deg/s for movement (ideal is 100-120 deg/s).

Anyone interested in a project like this? I can provide more details
to those interested in the project. It needs to be developed as a low
cost mount, I can elaborate on what low cost means in an email.


Is, say, $40,000 in moderate production quantities "low cost"?

And what would you bolt it to? A few cubic yards of nice reinforced
concrete might be a start. Slewing 11 pounds at 20 RPM to 13
arc-seconds accuracy will get interesting; bedrock footings, maybe.
---
1lb, not 11lb.

Well, it's still a challenge. The reaction forces kicked into the
mount will take a long time to settle out; it might settle faster if
it slewed slower. Arc-seconds are not "hacker" territory.


But you guys should be quite versed in dynamic load shifting for earthquake protection. Or is it only Japan that does that?

Other than that just move the installation to the right place, like outside my lab. There is a rock that's huge, where the other end of it seems to crop out in China.

--
Regards, Joerg

http://www.analogconsultants.com/
.

Relevant Pages

  • Re: Need engineer for hire
    ... design a very accurate PTZ mount for a small camera. ... cost mount, I can elaborate on what low cost means in an email. ... arc-seconds accuracy will get interesting; ... mount will take a long time to settle out; it might settle faster if ...
    (sci.electronics.design)
  • Need engineer for hire
    ... design a very accurate PTZ mount for a small camera. ... deg/s for movement. ... cost mount, I can elaborate on what low cost means in an email. ...
    (sci.electronics.design)
Quantcast