Converting scales

[jgilchrist800]

Not sure where I put this discussion. Please move if needed

 

I purchased MS 2020 Mayflower at 1:76 scale = 5/32" = .1563" = 3.969 mm

 

I purchased Bob Hunt's Mayflower practicum, without paying attention, which is for the Artesania Latina model, at 1:64 scale = 3/16" = .1875" = .4.763 mm

 

Comparing the two .1563/.1875 = .8336

 

If Bob says cut 5" do I cut 5"x.8336 = 4.168"?

 

Likewise if he says use 1/4" square board do I use 1/4" x .8336 = .2084"?

 

Using mm may be more precise but the question remains the same.

 

I know I should consult the plans first but if there is not a clear picture can I make the modifications as outlined above?

 

Or maybe I'm simplifying the calculations too much and the approach should be entirely different? I'm obviously not a mathematician!

 

Thanks for your help.

 

John

 

 

[Jaager]

I would do it 64/76 = 0.84  but for what you want, it is the way that I would approach it.   Remember that this is 3D so  it is l x 0.84 and w x 0.84 and d x 0.84.

With a digital caliper, it should be no problem doing measurements.   It sure beats vernier or going blind using a 1/64" graduated ruler. 

Now, the trick is getting stock to match.

Hello Jim Byrnes and if you do that, it is hello dark side (scratch).

[Roger Pellett]

Jaager,

 

While the volume of the finished model will be smaller by the cube of the three scale factors, to build the model John only need to concern himself with linear ones, ie; multiply linear dimensions in the practium by .84.  

 

Roger

[Jaager]

Roger,

OK.

Not knowing what the practicum involves, I was thinking about the actual wood pieces.

[jgilchrist800]

Thanks guys.