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  1. Builder01

    5"g Simplex steam loco build (hopefully)

    Forgot to ask, what is the story on the two beautiful Myford lathes? Are these yours? Sure look nice! I really wanted one of those Myfords when I was a kid. I could not afford it, and I settled for a cheaper Taiwan lathe. Still have, still use it! David
  2. Builder01

    5"g Simplex steam loco build (hopefully)

    Your lifting arms look great! I did notice that you machined the large hub by turning. I machined the sides the same way as I did the main connecting rods. On the weigh shaft, I saw a few back and forth scratches, there might be a burr on the inside of one of the bores. Your 3-1/2" gauge...
  3. Builder01

    5"g Simplex steam loco build (hopefully)

    $1200 seems pretty high for boiler materials. I got my boiler materials kit from Blackgates. This included all copper and several bronze castings for some of the larger bushings. It also included a bronze cast "stick", to make the rest of the bushings from. With shipping to the U.S., it cost...
  4. Builder01

    5"g Simplex steam loco build (hopefully)

    As for a torch, your mapp gas will work just fine for many small items. I use a small mapp gas torch to do all of my pipe fittings. The big torch only came out for the boiler fabrication. For the reverser, I did not attach the blocks to the stand until I was sure the screw, bearing blocks and...
  5. Builder01

    5"g Simplex steam loco build (hopefully)

    I don't know if anyone has built the expansion link as you have, but, I do not know many builders of steam locomotives! The screw reverser is certainly a European style piece of equipment, and to be sure is British. Screw or quadrant, neither is better than the other, just different. I went...
  6. Builder01

    5"g Simplex steam loco build (hopefully)

    That is certainly another way to manufacture the outer plates of the expansion link, clever! As for "full travel" of the valve gear, you will not really know this until you have the reversing wheel and reach rod fabricated and all connected up. You will be looking for about 9/16" movement of...
  7. Builder01

    5"g Simplex steam loco build (hopefully)

    Hi Bazmak, The simplex was designed by Martin Evans, who was at one time the editor of the Model Engineer magazine. If you are building the first version of the Simplex, it was first published in a series of articles in Model Engineer starting in April of 1967. It was a very popular...
  8. Builder01

    5"g Simplex steam loco build (hopefully)

    I have just recently found this forum and your thread about building a Simplex locomotive. You have done a nice job on the expansion links and radius rods. This is not a simple job. I have built a set also, but, for a Super Simplex. They are almost exactly the same. Eventually, you may discover...
  9. Builder01

    Super Simplex

    Live steam 1" scale, 4-3/4" gauge. 0-6-0T locomotive. Year: started June 2015, first steamed May 2017 Engine Modifications: Re-gauged from 5\" to 4-3/4\"
  10. Builder01

    Steam engine for my Shay

    What gauge is that locomotive? Very nice! David
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