I'm actually amazed I finished this puppy 5 days early. It's also my first pneumatic prop. Motors don't give that "in your face" scare no matter how hard I try.
This prop has two stages. When the victim (ToT'er) walks in front, the first stage raises his hanging forearm (the other hand is grasping the sword stabbed into him) up about 4-5 inches at the elbow for a couple seconds. This is done by an "instructables" air muscle. Rubber tubing inside a red colored nylon wiring sheath. Air applied increases the diameter of the rubber tubing, causing the length of the nylon sheathing to shorten, raising the forearm. I accidentally made the "muscle" a tad too long so it doesn't raise very far, but then again it's less likely to hit someone also. I exposed the muscle under the skin, thought it looked real enough. Used a two way air valve so the released air allows the arm to drop when the "muscle" relaxes.
Now, if that doesn't make them jump, I hope the second stage does. Water will spray from his exposed guts for about a second as the arm drops. Not enough to get someone soaked, but hopefully enough to make them freak.
I also have a small motor in the gut area that is twisting one of the intestines (rubber tubes) around, adding to the gross factor. A couple other rubber tubes are inside there while the rest is just good old Great Stuff expanding foam.
Safety wise, while that's a real metal sword stabbed in his gut, I cut the end off so it's flush with the back of the post. I also braced the remaining tip so it can't be pulled out and dulled the exposed blade.
Corpsing method is courtesy of Skull and Bone. Have to add that using Natural stain as a second coat to any other darker stain is great as it creates a multi tone effect. Graci to DC Props for the spitter tubing, as I didn't want to fuss with making one work myself. Also to Monster Guts, the controller works just sweet.
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