[simpits-tech] new video.

[Cris Harrison]

On 9/26/2011 8:47 AM, Gene Buckle wrote:
> On Mon, 26 Sep 2011, Brian Sikkema wrote:
>
>> On 9/26/2011 5:08 AM, Gene Buckle wrote:
>>> This was taken last week - it's a demo of the PID controller that we
>>> developed to control the mirror shape for the collimated display.
>>>
>>> http://www.youtube.com/watch?v=q309MyEtc3A
>>>
>>> g.
>>>
>>>
Too Cool Gene...
to bad I dont have the room for it anymore.... Btw you had the graphics 
display taking to the Arduino
two questions.....
1. what was your comm? ethernet maybe?
2. how / what language did you write it in...
btw it would be cool if the Arduino supported a XVGA card.....(just a 
thought)
Regards
Cris H.
phoenixcomm.wordpress.com
www.phoenixaerospace.us
www.flite-tronics.com

>> Very cool!
>>
>> Question. Why did you opt for the gear setup on the servo? Could you
>> have just had it controlling the gate directly? Just curious, your way
>> obviously works, too.
> Brian, I was concerned about the friction increase due to air pressure.
> By using a gear, I'm giving the mechanical advantage to the servo to
> overcome the extra friction caused by air pressure pressing against the
> gear.  Even so, I've got a special "lubricated" surface sheet attached to
> the top of the box that greatly reduces the friction between the gate gear
> and the box top.  It's almost teflon-like stuff.  I got it from Matt W.
> many years ago.
>
> At some point a new bypass gate box will be built that incorporates some
> sound damping material and a more efficient bypass gate system.  For now
> though, it gets the job done.
>
> g.
>
>