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      BobsModels replied to the thread 1/4 Scale Rider Ericsson.
      I had never built a hot air engine, so I consulted some friends especially one who had built many of hot air engines as well as selling...
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      BobsModels replied to the thread 1/4 Scale Rider Ericsson.
      That displacer piston is the opposite, the copper should be on the bottom for max heat transfer, and stainless on the side to minimize...
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      BobsModels replied to the thread 1/4 Scale Rider Ericsson.
      Yes that displacer cylinder made of copper is an issue. A question is the bottom of the displacer cylinder copper? I have some ideas...
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      BobsModels replied to the thread 1/4 Scale Rider Ericsson.
      Very nice looking model, if I may ask what is not running for you the way you would like? Bob
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      BobsModels reacted to hopperwhistle's post in the thread 1/4 Scale Rider Ericsson with Like Like.
      Almost finished but still not running quite right... now to build a base, and tinker with it for the next month...
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      BobsModels reacted to rickhann's post in the thread safety valves with Like Like.
      Bob, I remember the contest to name the "Iron Pony". I was in in High school in Somonauk at he time the contest was held. I don't...
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      BobsModels replied to the thread safety valves.
      K2 Here is a picture of the 14” gauge taken around 1987. I co-owned it with friend in the 1980’s, we laid about 1200’ of track at a...
      • IP-1-em.jpg
      • IP-2-em.jpg
      • Hudson-1-EM.jpg
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      BobsModels replied to the thread safety valves.
      K2 You guessed exactly what I was going to propose but really would like to see his application. Wilesco makes a real nice valve that...
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      BobsModels replied to the thread safety valves.
      Mike A photo of the boiler would really help understand what is being attempted. What is the boiler powering? You are describing a...
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      BobsModels replied to the thread Drilling Very Small Holes.
      krypto I have those in a PDF, also lots of views of the machine. I will make up a file containing all the info I have and upload it...
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      BobsModels replied to the thread Drilling Very Small Holes.
      I think these were available in the 1950's. I have attached fliers that were in the tool box that was built into the custom cabinet...
      • Magnetic Chuck0002.jpg
      • Page1Sales Sheet.jpg
      • Page2 Sales Sheet.jpg
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      BobsModels replied to the thread Drilling Very Small Holes.
      I have a Dumore that is outfitted with x-y table, light, magnifying glass, speed control, depth controlled table that has balance...
      • Dumore Front-2-EM.jpg
      • collet-chuck-v1-EM.jpg
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