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BobsModels

Well-Known Member

Joined: Apr 24, 2009

Last seen: Wednesday at 2:46 PM

Latest activity Postings About

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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...
  
  Mar 21, 2023
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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...
  
  Mar 20, 2023
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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...
  
  Mar 20, 2023
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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
  
  Mar 20, 2023
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  BobsModels reacted to hopperwhistle's post in the thread 1/4 Scale Rider Ericsson with Like.
  
  Almost finished but still not running quite right... now to build a base, and tinker with it for the next month...
  
  Mar 20, 2023
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  BobsModels reacted to rickhann's post in the thread safety valves with 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...
  
  Feb 8, 2023
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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...
  
  Feb 5, 2023
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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...
  
  Feb 4, 2023
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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...
  
  Feb 4, 2023
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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...
  
  Feb 2, 2023
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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...
  
  Feb 1, 2023
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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...
  
  Jan 30, 2023
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