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Jasonb
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    • Jasonb
      Jasonb replied to the thread Elmers Engine 2x#33.
      No it's CNC machined to finished size, I'd need to add machining allowances and shrinkage allowance to pull a casting from it. I'd also...
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      • Derwing Pulley Half.JPG
      • redwing pulley.JPG
    • Jasonb
      Jasonb replied to the thread Elmers Engine 2x#33.
      Started with some 40 x 60 steel which I roughed down on the manual mill to 53 x 34 x 131 long and them machined from that, all sides...
      • pro setup.JPG
      • pro setup 2.JPG
    • Jasonb
      Jasonb replied to the thread Elmers Engine 2x#33.
      The Locomotive "eccentric" you show may not put the line of the valve rod far enough out to the side and would better suit a top mounted...
      • pro 3d.JPG
      • 20230214_191921.jpg
    • Jasonb
      Jasonb replied to the thread Elmers Engine 2x#33.
      I don't think you will have a problem getting it assembled, it is just a bit more fiddly with them facing inwards. You could probably...
    • Jasonb
      Jasonb replied to the thread Elmers Engine 2x#33.
      On a lot of simple models the eccentrics are slid onto the crankshaft before the crank arms are finally fixed. More detailed model...
      • fleet ecc.JPG
      • outside ecc.JPG
    • Jasonb
      Jasonb replied to the thread Elmers Engine 2x#33.
      Makes for a simple crankshaft where the single crank webs just fit either end of the shaft, if you have them facing out you need two...
    • Jasonb
      Jasonb replied to the thread Elmers Engine 2x#33.
      The only thing to think about is getting the chest covers off to set the valves which will need a spanner rather than nut spinner...
    • Jasonb
      Jasonb replied to the thread Flathead hit and miss engine???.
      It was the backplate to rotary table I was talking about, Either have a spigot on the backplate to locate in the rotary table like...
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      • Photo 173.JPG
    • Jasonb
      Yes it is a problem that afflicts many models that are run for display as the slow speed combined with no actual load on the engine...
    • Jasonb
      Jasonb replied to the thread Flathead hit and miss engine???.
      Either bore a hole in the chuck backplate and use a spigot in the R/T's hole or if there is enough thickness to the backplate turn a...
    • Jasonb
      This is my recently completed version of the Stuart James Coombes, I just used a Stuart Cylinder casting and fabricated or cut the rest...
    • Jasonb
      Jasonb replied to the thread Flathead hit and miss engine???.
      Same width as mine and I don't have a problem with 3 or 4 jaw either If you feel you can't get the tailstock in to turn the stem you...
    • Jasonb
      Jasonb replied to the thread Flathead hit and miss engine???.
      Should not be a problem Brian, your lathe is basically the same as mine yet all the engines I have made valves for I use the rotating...
    • Jasonb
      It works just like any slide valve steam engine really except the port face is a round "tube" and the valve a mating round cylinder with...
      • Rocking-Valve-01.jpg
    • Jasonb
      Westbury's "Whippet" 10cc.
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