[kprimm]

I have seen this effect done with pneumatics but i'm not sure if a wiper motor will do the trick here. The one i saw was also a cage butit was made out of pvc. The front of the cage was hooked down at the bottom leading edge and the pneumatic cylinder pushed from the back, causing the gorilla to push against the cage leaning it forward towards the audience. A nice simple controller that i think would work great for this would be the animation meastro
you can see exactly how it will operate when you program it, it is very easy to use. I am currently building a dropping spider prop that will be using the meastro. Check it out here Haunted Enterprises - Haunted Village - Home of the Last Ride

scroll down it is towards the bottom of the page.

 

[Partiers.com]

The back of cage to front of cage would be an awesome effect! We're looking for something a little less startling... just a side-to-side motion inside the cage. I don't think the wiper motor can handle too much weight so I need some help figuring out how to mount the gorilla pvc frame ....maybe suspend it?.....and how to make the gorilla seem to 'shake' with the wiper motor, if possible. Thanks!

 

[Terra]

How about with chains?