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thibaultron

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Posts posted by thibaultron

  1. I scan the plans one section at a time, then combine them into a single file. Then import them into my CAD program. The Cad lets me adjust size to correct any distortion, and redraw any sections that are not clear, or slightly different on different sheets. it also allows me to draw any additional details I might make, as well as print any section I need during construction.

     

    The originals get rolled up, and stored in a cardboard or plastic tube, for safe keeping.

  2. Its a nogo on 3D printing the cylinders, for the Le Rhone/UR2 engines. There are 33 fins in a actual 22CM length, and the minimum thickness for the Shapeways detail plastic is ~.5CM for a supported wall/fin, and ~1CM for an unsupported wall, AKA a fin. This is for a cylinder scaled to 1/16th.

     

    A built up PE stack might do it. You would need some combination that comes out to .0163" or .0164" thick for each fin and spacer(s) combination. It comes out to .666 real CM from top of one fin to the bottom of the "gap".

  3. For my "stuff", I model it full size, then rescale it when I send it to the printer. I'll have to look into Blender.

     

    My tutorial is intended more to teach how to use SketchUp, rather than as a drafting lesson. I wanted to show a few tricks I'd learned along the way, also.

     

    Here's a shot of a piece of equipment I'm designing for one of my model railroad locos. It is a conversion set to modify a Bachmann 2-8-0 to a Santa Fe prototype. I could have built it long ago, but enjoy the challenge of CAding/3D printing it. If it works out I plan on making it available to others. It's an oil bunker for the tender, with a new dome for the locomotive. The second dome is for me to trial fit first, so I don't ruin the "good" one.

     

    One thing that will come out of it is a set of accurate oil fill hatches for Santa Fe locos. Most production models have incorrect ones, even the Brass locos. I have several tenders that I need to upgrade. Also the 2 tool boxes are missing on most SF loco models. I will have to stretch/shrink some of the dimensions to fit each loco, but I have the basic models to start with.

     

    It may be too complex, with all those rivets on the side, but I'm interested in seeing if it works.

    Oil Bunker Insert_304 Ac Version_09.jpg

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