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Armando Meneses	01/07/2011 17:18:37
31 forum posts 2 photos	Hello everyone. I will start marking the locomotive frames, and then be able to make their holes. I mark the two sides of the to frames, or only one, and put the two together and drill simultaneously? Armando
JasonB	01/07/2011 17:31:47
25215 forum posts 3105 photos 1 articles	Mark out one frame, clamp the two together, drill a couple of the holes at opposite ends and then bolt the frames together. You can then drill the rest of the holes and shape the sides. J
Clive Hartland	01/07/2011 19:17:09
2929 forum posts 41 photos	Remember, measure twice and drill once! I will not tell you what happened with mine but lets say its got eight holes full of rivets and solder! Clive
Nicholas Farr	02/07/2011 09:09:33
3988 forum posts 1799 photos	Hi, I usually have frame steel a little longer than required, and then just tack weld them together on the ends, I then tack weld a thin strip of steel to the left hand side dead square to all the holes and cut outs to be marked out, for the rule to butt up against, this ensures that everthing is marked out from exactly the same datum piont, however if you are doing co-ordinate drilling the strip of steel isn't needed. Tack welding the two together, ensures that all the holes are exactly in line and no bolts/screws get in the way for clamping down or drilling. Regards Nick.
Armando Meneses	02/07/2011 10:56:44
31 forum posts 2 photos	Hello Thank you for your advice. I do like JasonB said, because the chassis is already cut to size, and I can not weld. The screws can hinder a bit but should not be big problem. Armando.
Ian S C	02/07/2011 11:35:19
7468 forum posts 230 photos	You could use tight pins in holes at each end, maybe roll pins. Ian S C

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