I made the pattern using my CNC router
Here is the new and old throttle castings. The throttle will have some tricky machinig which is still to be done. Its a balanced spindle valve, and has two seats which must both fit exactly.
Here I have just handed the red hot rivet into Brian through an inspection hole. He then pushed it up through the hole so I could grab it, with tongs of course, while he set the air buck in behind the rivet.
Here you can see the red hot rivet getting hammered down with the rivet gun. Notice we have bolts in every other hole. We first bolt it together, then ream all the rivet holes. Once half the rivets are in we will remove the bolts, ream those holes, and place the rest of the rivets
We have more boiler work to do, and other machinig jobs, and we hope to build a new post and beam carhouse to store the coaches, so it looks like Ill be working on the railroad for while.
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