Where can I find a screwdriver for an Etch-A-Sketch Animator? Answered
I have an old Etch-A-Sketch Animator from 1986. The rubber membrane buttons barely work now. I would love to take this apart and clean out the buttons but the security screws in this are very weird - a funky kind of three bladed thing for which I have never been able to find a bit/driver. It's not Tri-Lobe, Tri-Wing or Tri-Groove. It's a standard pan top screw with three slots, separated in the center by a tiny "triangle". The slots come together much more closely than Tri-Groove. The ends of the slots closest to the center of the screw are more shallow than the edges closest to the diameter of the screw.
A Tri-Groove might work, but I don't think the driver is going to clear the outer plastic housing. If anyone knows where I can find a bit to remove these, I'd appreciate the help!
As far as advice on improvised removal techniques: Dremel techniques or any kind of "use a pair of dikes" technique won't work here because the screw is recessed by about 1.5cm in a channel that is maybe 1mm wider than the screw head. I'd like to avoid "Melt a pen" techniques to avoid damage to the casing and/or getting a pen permanently melted into the shaft. Besides, with the size of these screws (1/4 inch head?) and the age of the device, I doubt a Bic pen will have the torque necessary to pop the screws. (Keeping that under my belt as a last resort, though.)
Links to a recommended Tri-Groove set with plenty of differently sized bits would be awesome as a second to last resort. There's so many and I'm a bit out of my element.