3" Burrell Traction Engine build.

  Gears and Covid Part 3.... And some other bits. The 2nd shaft gear was finally complete after quite a few passes round all 69 teeth. Here its shown with a quick coat of red oxide to protect the inner surface. Only remains the mating gear which is slightly bigger in diameter to be started.   The main reason for finishing one of the large gears was to progress the drilling of the horn-plates for the shaft tubes. I wanted to be sure of the dimension for the hole centres using my gears rather than trying to modify it later. It appears to be ok but I think I will still make a location spigot for the large gear, fitted into a smaller hole in the horn-plate for a test, so that the hole can be made larger  (and ) / or offset if needed after.      The Next easy job will be the bolts required to hold the bearing housing onto the plate followed by some holes used for some threaded hex rod in the positions of the back head bolts. I will then end up with a box similar to what I started with with