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Post by ibrich on Apr 8, 2004 22:59:02 GMT -5
Bill,
Thanks for the reply but I was wondering how thick a piece of metal you would use for the frame in 1" scale.
Regards,
Rich
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Post by Bill Holland on Apr 9, 2004 1:03:59 GMT -5
What I've been doing is taking the 3.25" dimensions and multiplying them by 1.351351, then selecting the nearest size stock to that.
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Post by DavidT on Apr 9, 2004 14:37:52 GMT -5
Kozo uses 1/4 brass for the 3/4" scale frames and 1/2" for the 1 1/2 scale. At 1' scale 3/8" sounds good, properly scaled would be .333" which would a slightly light 5/16 or the heavy 3/8" Extra weigh will not hurt, Kozo makes many parts for solid stock to add weight to his 3/4 scale engines.
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Post by Bill Holland on Apr 9, 2004 16:28:56 GMT -5
Just trying to visualize in my head, 3/8ths would seam pretty thick, but your right, I would use it doing my little formula. Bigger is better for most things.
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Post by wally6800 on Apr 11, 2004 15:28:33 GMT -5
Hi Guys,
I just got my book and after looking at the drawing for the side frames, I am asking myself what is it that I missed in this discussion about a large amount of machining that can be eliminated by buying the side frames cut from plate?
I intend to buy Cold Rolled bar and then machine 4 small openings for the axle boxes , 2 more small openings for cylinder mounting . After that , it looks like the same work using either method.
It looks like a lot less work with the CRS Bars than with any of the shape cutting methods mentioned. My guess would be it is a lot less money as well.
If I have missed something here, a few corrections would be greatly appreciated.
Thanks .
Wally
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