Every year my wife and I throw a pumpkin carving party the weekend before Halloween. We use our unfinished basement for the event where we have friends over to carve pumpkins, eat food, watch movies, and participate in general Halloween mayhem. We have a tradition of doing a prop room in one area of the basement for the enjoyment of the guests and to help set the mood.
The past several years have had stationary props, almost like a life size dioramas. So to help take things to the next level I decided to make a pair of electric chairs. One chair would have an animated dummy that would jump around when a button was pressed. The other chair would be an interactive prop, where guests could sit in it and get a simulated shock.
Step 1: Chair Design
The first step is to build two wooden chairs. I spent some time doing internet searches for images of electric chairs. I created a chair design that was based upon several different chairs, taking aspects that I liked from each and combining them. I took a little extra time on the design so that I could make up for my lack of carpentry skills. I intended to do all my joinery with glue and wood screws.
I also created a drawing to help keep track of the lumber I would have to cut. The attached PDF lists the lumber required for a single chair. The first page has a bill of materials that I used for my master cut list. The last five pages show dimensions and angles for the parts that needed cuts that were more complicated that just square cross cuts.