Thread: How can I make something similar to a pop-up ghost, without the use of pneunomatics?

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I really want to do a pop-up ghost like those in the HM, but Pneunomatics are really hard to use (for me) and so are compressed air and other devices, which are hard to obtain for me. Anyways, I can build the prop, but I need the mechanism that would imitate that of the Haunted Mansion (HM) . i thought of things like springs, or the mechanism that the trashcans that open the lid when you press a button use, etc. Give me your ideas, I won't accept a "No, this can only be achieved with compressed air and pneunomatics."

Although it wouldn't be extremely fast, you could use a wiper motor to lift a 4-bar linkage. Some wiper motors have a setting that makes it turn around exactly one revolution. You could do something like this with the motor attached to the bottom linkage:

This is a no air prop.. I have a drill(with speed adjustment) moving the arm and a motion det. next to the crate.It works good for me..
YouTube- CRATE VIDEO 2 HAUNTED BARN

Not sure what Pneunomatics are... But you could try pnuematics!
.

Originally Posted by Front Yard Fright

Not sure what Pneunomatics are... But you could try pnuematics!
.

Wow a grammar nazi......

I used a wiper motor with a custom controller to do this:

http://s73.photobucket.com/albums/i2...t=MOV06785.flv

The linkage is a bit tricky on this prop due to the low height of the 'stone - I didn't have much room to hide things. A taller 'stone would have a simpler, even a vertical, linkage.

How about PNEUMATICS?

come on guys cant u sPeLl
it"s newmatecs

to the OP'er air props aren't that bad there are many how-to's and very low budget scares for the beginner and many of use will help answer questions if you get stuck or have an issue.

Good luck with whichever one you do.

-PropBoy

Originally Posted by Otaku

I used a wiper motor with a custom controller to do this:

http://s73.photobucket.com/albums/i2...t=MOV06785.flv

The linkage is a bit tricky on this prop due to the low height of the 'stone - I didn't have much room to hide things. A taller 'stone would have a simpler, even a vertical, linkage.

Great looking prop.

How are people powering the wiper motors? Can you do that on AC?