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» Termpro Audio Forum » Installer's Corner » Advanced Topics » LCD on a robotic arm........

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Author Topic: LCD on a robotic arm........
GTX 009
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Sorry if I've posted this before, but I've asked so many people about this so many times in the last year that I don't remember anymore... I have been trying to find a cheap way to do this for ~13 months now, and I can't do it. Now I have the cash to do it right, but I can't figure it out.

All the custom shops anywhere near me have told me nothing like this has been or realistically could be done in car audio... which I don't belive...

Here's the deal, I'm putting a PC in, and I want the screen to be hidden in the glove box when not in use. Its a touch screen, and when it's out I want it to have 2 positions - pointing at me in the drivers' seat, and pointing out the passenger window so I can control it from outside the car.

If I can't motorize this (which I reeealy want to, but...) is there a way I can do it with springs or scissor type mechanism? (Kind of like the hanging lights they have at dentists' offices)

Please help, I've put so much futile R&D into this I'm about to lose my !@#$%^& mind...

John


Posts: 130 | From: Farmington Hills, MI | Registered: May 2001  |  IP: Logged | Report this post to a Moderator
ShadowStar
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I haven't done much with actuators, but what you are suggesting could be easily done with a "center-stop servo motor"

The servo motor would trundle the screen say 45^ to the left to "left stop", trundle to center "center stop" and also trundle right say 45^ to "right stop"

I'd imagine you could also do it with a small linear actuator and two switches.. Have to think about the logic for a second though.

ShadowStar

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You can't build a reputation for what you're GOING to do.. But you can build one for TALKING about it!

It's all about knowledge, love and respect.


Posts: 2579 | From: Somewhere In the Northeast | Registered: May 1999  |  IP: Logged | Report this post to a Moderator
oldtimer
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I would use stepper motors.Stepper motors,pulleys and cord will do a lot.

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My 45's want fit in that slot!

Posts: 1169 | From: Rowlett, TX, USA | Registered: Jun 2000  |  IP: Logged | Report this post to a Moderator
GTX 009
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The center-stop servo is what I'm playing around with now. The main problem I'm having is fitting the whole arm mechanism into the smallest possible area while keeping it strong enough to support the screen without bouncing.

I think there are a few little things I'm doing wrong in all the time I've been destroying different servos... so if anybody has a link to a beginner's guide I wouldn't mind relearning some stuff

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John Schiffman
new 1/4: 12.40@111.85 at 3960+ lbs
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Audio forever under construction...


Posts: 130 | From: Farmington Hills, MI | Registered: May 2001  |  IP: Logged | Report this post to a Moderator
   

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