3d printing Could anyone help me with getting the scale right for 3D printing?

[Josef2000]

I do apologise if I'm in the wrong place! Also sorry if this message is hard to follow. English is my first language but I'm somewhat slow haha.

I'm hoping to create some 3D models of various rolling stock, signs and other miscellaneous pieces however I'm not sure how to accurately measure the model so it fits the appropriate OO scale.
Does anyone have any tips for 3D printing? I noticed that the smaller details can be tricky.
I'm hoping to create a standard coach first, and print out various sections such as the 'shell' and interior seating.

Many thanks,

Joe

[murrayec]

OO is 1:76 so your scale factor from 1:1 is .0131

Eoin

[Blaine]

13 hours ago, murrayec said:

OO is 1:76 so your scale factor from 1:1 is .0131

Eoin

1:76.2 - that Point 2 is occasionally skipped and the results show

[Josef2000]

Thank you, Eoin and Blaine, for your answers!

Say if I were to create a coach in a blender that is 20m long.
To find the scale length, I would do 20000mm × 0.0131 = 262 mm (26.2 cm)
As you had mentioned, Blaine the scale is 1:76.2. Would this mean that I should use 1:76.2 for the calculations, which (using the same 20m coach example) should be: 20000mm × 0.01312 = 262.4 mm (26.24cm)

Would this be correct? Again many thanks.

[murrayec]

Yes thats correct, and as you can see that .4 of a mm makes all the difference

Eoin