[DMCForum] Linear Actuator (WAS:vacuum for making D parts)

["Marc A. Levy" <malevy@xxxxxxxxxxxxx>]

I thought about a linear actuator to open and close the door, but could
not come up with a answer to the question of how to get in or out in the
event of electrical failure or dead battery.  Even if you were strong
enough to lift the door, there is no way to release the linear actuator
(as there is on the lift in a Bricklin, a pin that you can remove).


> -----Original Message-----
> From: timnagin [mailto:timnagin@xxxxxxxxxxxxxx]
> Sent: Sunday, August 04, 2002 3:54 PM
> To: DMCForum@xxxxxxxxxxxxxxx
> Subject: RE: [DMCForum] vacuum for making D parts - was - Moderators
> 
> 
> Andrei,
> 
> The latest postings on making panels really got me thinking 
> more about this.
> If you were able to make an entire door out of carbon fiber, 
> which could be
> assembled using many smaller pieces, I would think the 
> current torsion bar
> would probably launch the door into orbit since it should be 
> much lighter
> than the stainless steel door.  The carbon fiber door may 
> need nothing more
> than a liner actuator or small hydraulic ram to lift it like 
> an original
> door and could do away with the torsion bar completely.  Your 
> thoughts?
> 
> 
> Greg
>



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