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Thread: Travis Steam Engine No 4 build

  1. #11
    Supporting Member jjr2001's Avatar
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    jjr2001's Tools
    Thanks PJ, This one was a fun build. None of the screws were so small that I needed tweezers to pick them up! 4-40 was the smallest and only 4 of them for the rod bearings. All the rest are 6-32 and 8-32.

    The flywheel was machined from a blank of aluminum on the CNC. I made a deep recess for the lead and then used a lead pot (electric) to melt the lead. I warmed the aluminum with a torch first and then just poured the lead into the recess. I did clean it up in the lathe after it cooled. Before cleaning it up I put CA glue in the very slight gap between the lead and the aluminum recess.

    While the rod journals look pinned they are not. The holes are just in case the solder gives out. No problems with timing at all and I do like the chug a chuga sound.

    Cheers, JR

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    PJs (Jun 22, 2018)

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