Bachmann N 30, 45, 60 and 90 degree crossing lengths.

Started by Joe Satnik, January 05, 2010, 03:45:56 PM

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Joe Satnik

Dear James,

I went back to the early postings in this thread and used your original caliper (length) measurements of the various crossings.

For the 17.5" Radius curves, I ended up with strleg lengths (4x) of:

90 degrees: 16.9375"                                 or 16-15/16" (same).

60 degrees: 10.103625 - 0.776 = 9.327625" or 9-5/16"

45 degrees: 7.248675 - 0.872 = 6.376675" or 6-3/8"

My chart shows tan(15) = 0.26795 :

30 degrees: 4.689125 - 1.291 = 3.398125" or 3-13/16"

It's a little bit overkill to use that many digits.  You could probably get away with 1/4" slop in those lengths.   

It's nice to know what they should be, though.

Hope this helps. 

Sincerely,

Joe Satnik

 

 

If your loco is too heavy to lift, you'd better be able to ride in, on or behind it.

James in FL

#16
Thanks Joe,

Overkill most definitely.

IMO rounding to 2 digits, behind the decimal,

should be OK.

Thanks again,
James in FL