As pleased as I was with the price my recent Slinky Tester brought on eBay, I do not plan on building any more for a while, at least, as I have many other projects that I want to get to first. But for anyone who is interested and capable of doing the work themselves, I made up a drawing. Sorry for the poor quality; I am not much of a computer person. And no, I do not have a CAD program! So, this hand-drawn blueprint is the best I can offer. But, anyone is free to use it if they wish.
Crazy Doug
I found one mistake in going over the print. It's a minor you would probably figure out before you actually drilled the hole. The original blueprint showed a .499 drilled hole for a press fit to the see saw rod on the flat vertical linkage. This should read ream .249 for press fit to see saw rod. See the picture. [ Guests cannot view attachments ]