abowie's latest activity

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    abowie replied to the thread PM Research #4 Build Log.
    All of this has a happy ending, however. I have fixed the problem. I haven't fixed the model, although I will over drill the mounting...
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    abowie replied to the thread PM Research #4 Build Log.
    Oh dear. A cautionary tale. So right at the beginning of the build you may recall that I stood the frame up in my mill to drill the 4...
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    abowie replied to the thread PM Research #4 Build Log.
    So you may recall that I made a mess of the conrod, with one end being about 35 thou off centre. With this error the cross slide keeps...
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    abowie replied to the thread PM Research #4 Build Log.
    Weather has now returned to sensible. I finished the build by making the oiler cups and completing the centre section for my...
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    abowie replied to the thread PM Research #4 Build Log.
    Because South Australia is so dry (similar climate to Northern California) you can actually buy commercially made evaporative air...
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    abowie replied to the thread PM Research #4 Build Log.
    That's how they did it on the smaller PM1 kit I built, and I was a bit surprised to see the roll pin setup.
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    abowie replied to the thread PM Research #4 Build Log.
    Today I drilled the central holes for the shafts. I decided against using the reamer, and set the crank up in my 3 jaw and bored the...
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    abowie replied to the thread PM Research #4 Build Log.
    I had ordered a couple of big pieces of HSS in order to finish the rod journal on my replacement three piece crankshaft. Because of the...
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    abowie replied to the thread PM Research #4 Build Log.
    Rather than machine the base in the lathe, I did mine on the mill. There are a couple of pics of it above where I am boring the crank...
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    abowie replied to the thread PM Research #4 Build Log.
    Yes. It stands 19" high and is a full scale model of a unit you could buy in the 1890's. Presumably to power your butter churn or something.
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    abowie replied to the thread PM Research #4 Build Log.
    I did a little bit of painting. Clear lacquer for the flywheel. I cut the keyway using the "cutoff tool in the lathe toolholder"...
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    abowie replied to the thread PM Research #4 Build Log.
    I thought the crank caps would look better with nuts and studs. Several burned and sanded fingertips later..
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    abowie replied to the thread PM Research #4 Build Log.
    So this is where I am at present. I've made most of the rest of the simple parts like the valve linkages, rods , piston and rod etc...
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    abowie replied to the thread PM Research #4 Build Log.
    Back to the crankshaft. I did what Ved did, and fused the parts together with TIG. One positive of this is that with the crank bolted...
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    abowie replied to the thread PM Research #4 Build Log.
    I mounted the base onto my mill bed using two vices. I referenced the side of the pillar with a gauge to get the bore perfectly...
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