February 23, 2009 | 3 Comments »

If you like to scare the paint off your scale figures, build them a paper model of the Bates House(from the movie Psycho) for them. The plans come in a pdf format (11 pages) and includes instructions.

The Bates House and other haunted collections are done by Ray Keim and are free to download and build. Though the mansions look complex, I am sure the finished building will be a treat for your layout. Check the builder’s gallery for inspiration.

About Scale/Printing:
The Bates House is in 1/66 scale so to convert it to your scale divide the scale number by the scale you want to model to get a percentage enlargement or reduction value.

For example, to go to HO (1/87) scale :
66/87 = 0.7586 which is approximately 75% reduction. So when you are ready to print, check your printer options where you can type in a percentage of reduction or scaling. Punch in 75 and you will have an approximate HO scale drawing ready to print and cut.

So, if you want to go to say O (1/48) scale:
66/48 = 1.375 which is approximately 137% enlargement.

For N scale: 66/160 = 0.412 which is around 40% reduction.

So, in summary, the Plan Conversion Formula Factor is:

(Scale of drawing plan / Scale you want to model) X 100

Reduce plan by the above factor if less than 100 or Enlarge if more than 100.


  1. Ron Pare
    February 23, 2009 — 8:13 pm

    Creepy isn’t it, I bet that’d look kool in a heavily forested grove.

  2. Ray Keim
    March 2, 2009 — 2:24 pm

    Hi Donald, thanks for the mention! Also, thanks for the scale formulas! People are are always asking me how to rescale my mansions to fit standard train layouts, and I never have a good answer. Now I do!
    I enjoy your posts!

  3. Don
    March 2, 2009 — 2:32 pm

    Hi Ray,
    i have become weary of the standard barn/warehouse/industrial buildings in most layouts. Your buildings/plans are just the thing to break the mold! thanks…


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