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    pipe threads MTP MPT NPT ME METP wtf

    Hi All, at present I am pretty much confused about threads. Even Nelson Riedel in his excellent Website talks sometimes about MTP, MPT, NPT. Which are real, and what is just misspelled? Are there Websites with thread data? Does anyone know who in Europe sells MPT and MTP Tools? Mike
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    Steam Locomotives

    Hi All, there are a bunch of plans in the library, but not what I'm currently looking for. I am planning to build a model steam locomotive, gauge 7 1/4". Are there any good free plans available, or some plans for sale? Anyone here with some experience in building such a steamer ? Looking for...
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    Boring Problem

    For an actual project I need a part as shown in the pic. Don't know yet what's the best method to manufacture the horizontal bores. These bores will carry bearings later. The opposing bores should be well aligned for the shafts and they should be pretty well parallel too. The part is welded...
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    David Kerzel Engine - problems

    Hello All, I wonder if anyone here has completed the Kerzel Engine? I'm trying to make a 3D CAD model of it as a base for some metrification. But I must admit I don't come along well because problems in the plans. For example Base plate: Some counterbores have a depth so they come...
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