Pipe Schemes

Nobody took me up on the Tinker Toy challenge from last time, so here's the answer:

It's a frame for holding the axle bearing halves inside the new oven, whenever it gets wired up and tested.  The oven itself has a maximum temperature of 500F, but that is more than sufficient for the type of silver solder we'll use, which has a melting point of only 360F or so.  They say the oven should be wired by the end of this month, so we'll see.  Impatience is killing me.