Thread: Car Prop

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I've been in the process of designing a car prop. Basically its the front end ( the section right after the windshield ) of a Karmen Ghia and what happens is the headlights go on and the horn blares. This is a classic scare nothing to original. But what I'm asking you guys is how do I move this 70-80 pound prop at least 2 feet forward for a resonable price? I mean it doesent have to move, but it would really add to the effect! I have a cart frame for it to sit on plus the frame has wheels ( I will build rails ). I just cant figure out how to move it, stormdoor closers arent long enough, a homemade PVC piston wouldent retract on a horizontal axis, and hydraulics would be to expensive. So please give me some ideas to move this thing. Thanks.

dude stop tring to kill people and go on e-bay and look for a long pneumatic cylider i got 2 18" throw ones for $55 1.5" so they can move alot of weight you just have to keep looking as of course threre is no predicion what will be available at any given time but there is still plenty of time till the great day the
the other thing you could do id just put your rals on a slightly downward angle that way you only need to power th return not the forward push

Originally Posted by funhousejoe

dude stop tring to kill people and go on e-bay and look for a long pneumatic cylider i got 2 18" throw ones for $55 1.5" so they can move alot of weight you just have to keep looking as of course threre is no predicion what will be available at any given time but there is still plenty of time till the great day the
the other thing you could do id just put your rals on a slightly downward angle that way you only need to power th return not the forward push

What do you mean by the whole trying to kill people thing????? Anyway, thanks for the advice!

What bore size do you guys think I need 3/4", 1 1/2", which one?! Remember its a heavy rig.

well Frightprops 1 1/16 bore at 100psi pushes 89lbs and retracts 81lbs u can run up to 120lbs psi air into them so that would easily put u over your 80-90 lb threshhold

oh yeah i want a video too i have been wanting to goto a jumkyard and do that classic prop for so long i have to see it in action thanks

Originally Posted by left4dead

What do you mean by the whole trying to kill people thing????? Anyway, thanks for the advice!

I think it was a reference to using a storm door closer or especially the pvc version of "tube of doom waiting to happen".....
Make sure your rail rolls as easy as possible to make it easier on the solenoids. Think 2 cyl would prob be best for control & speed. Make sure you run a stop chain or cable (not rope) behind it with just a link or 2 more in case something it breaks loose coming forward. Safety always

Originally Posted by DangersAhead

well Frightprops 1 1/16 bore at 100psi pushes 89lbs and retracts 81lbs u can run up to 120lbs psi air into them so that would easily put u over your 80-90 lb threshhold

oh yeah i want a video too i have been wanting to goto a jumkyard and do that classic prop for so long i have to see it in action thanks

Wow so the 1 1/16 would work.. thanks. I'll be sure to upload a video when its finished but just letting you know it will take some time.

Originally Posted by Dark lord

I think it was a reference to using a storm door closer or especially the pvc version of "tube of doom waiting to happen".....
Make sure your rail rolls as easy as possible to make it easier on the solenoids. Think 2 cyl would prob be best for control & speed. Make sure you run a stop chain or cable (not rope) behind it with just a link or 2 more in case something it breaks loose coming forward. Safety always

I currently use stormdoor closers on all my pneumatic props, there safe..... as far as them pushing a car, not so much. LOL

Just thinking outside the box here: who says it has to be pneumatic?

http://www.lowes.com/pd_248730-38782...ntity_sold%7C1

Originally Posted by Screaming Demons

Just thinking outside the box here: who says it has to be pneumatic?

http://www.lowes.com/pd_248730-38782...ntity_sold%7C1

I dont think that would be fast enough.