Photo #1 My first cuckoo test stand, used only for a movement out of the case, was a flimsy, precarious, accident-waiting-to-happen affair made from pieces of scrap wood held on to the top of a table with C clamps with paint stirrers and whatnot put across to provide support for the bottom of the plates. When I was ready to put the movement back in the case, I wanted something sturdier and safer that could be used both for a movement out of the case and a fully assembled clock. Photo #2 William Bilger's Cuckoo Clock Repair Manual has some plans for a test stand with a hinged contraption for supporting the case by the roof so that you can look in the back while the clock is running to make adjustments to the hammer and bellows lifters. Maybe I'll make one of those eventually but for now I've come up with a simpler solution Photo #3 My solution was to take a board I had lying around measuring 21" long by 10" wide and cut two rectangular holes in it and screw it down firmly to support underneath. I own three cuckoo clocks, all of which have trim pieces that hang down from the front of the clock. My shelf needed to provide clearance for three things: the trim piece, the chains, and the pendulum. I measured all three of my cuckoos using the back of the trim piece as the key reference point to see how far back the chain holes and pendulum slot are. As you can see, I can put tools on the back of the shelf, and I can sit in a chair while working on the hammer and bellows lifters with the back panel off of the clock while the clock is running. Photo #4 This shows the underside of the test stand showing the two rectangular holes. The little strip of wood left in between the two holes is important because it provides support for the bottom of the plates when the stand is used for a movement out of the case.