Developer Comment by R_Lefebvre on March 21, 2012 at 7:45am

Interesting design.  But I don't think the retraction mechanism will work unless you use some expensive linear bearings on those posts, or use two servos.  It will just jam soon as the one side lifts and it gets cocked on those posts.

Comment by Shane on March 21, 2012 at 9:21pm

@joseph 

flipping the pan servo is a good idea, i was originally going to do that but thought i would post for an initial opinion first. 

@joseph and Robert

i agree that it will most likely jam but could not think of a way other than adding another servo which might not remedy the problem and also adds weight, if anyone had ideas on how to get it to not jam in a not very complicated way, it would be great !

Comment by Joseph on March 22, 2012 at 12:09pm

I would suggest some sort of gear or pulley system to even out the preasure of raising it and lowering it. 

also you might want to think about maybe a spring tension system that might always press on the other side? 

You could even relocate the lift point to the center of the load?

keep us informed of the progress.

Comment by Shane on April 17, 2012 at 2:19am

hi guys again, 

ino this is an old thread but i updated my design so that it shouldnt jam moving up and down (thanks Joseph). 

My concept uses a system of gears, tell me what u think of it :) https://tinkercad.com/things/gFKeLbnssqP? 

Comment by Hein du Plessis on April 17, 2012 at 5:19am

@Monroe please do..! I'm waiting with baited breath ;)

Comment by Shane on April 21, 2012 at 11:10pm

i may look at making a quick prototype soonish, but till then u guys are welcome to have a crack at building one :)

 

Comment by Joseph on April 24, 2012 at 2:00pm

I like the new design. I sure does have mor moving parts. Do you think this might cause problem later down the road?

I would love to see one complete.

Great work.

Comment by Chad Frazer on August 1, 2012 at 11:13am

We had a retractable camera system in the AeroSonde UAV we flew.  I can tell you from from personal experience, stay away from the pulley idea.  They are delicate and will jam.  Please note, the bird was HIGHLY developed and it still failed.

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