Gallery, Projects and General > How do I??

Scaleing Plans

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Sackett:
This might not be right place for this,, if not ok for mods to move it pls. So if I wanted to scale a set of plans up, say double,,,do I double all dimendions? Was thinking about one of Elmers ,,maybe #3 mill

bp:
Yep.
Distance dimensions are multiplied by the scaling factor (2 in your case).  angular dimensions stay the same, i.e a 45 degree chamfer at original scale is still a 45 degree chamfer at twice scale.  If the chamfer is shown on the drawing as "  chamfer 45 degrees x 1.0mm  " becomes " chamfer 45 degrees x 2.0mm", and so on forever!!
cheers
Bill

SwarfnStuff:
        For what it's worth.  If you can draw it up in CAD at actual size there is usually an option to scale the drawing up or down. This changes the dimensions as well too, so can make life easier. Of course you have to have a CAD program and draw it up first.
        Although, some things may not need to be scaled up in the case of model engines IF you are not being pedantic.

John B

Sackett:
Tks guys,,no cad here,,,just carpenters pencil n sorta straight ruler,,,,,sigh

Toolshed:
http://www.staples.com/Staedtler-Mars-12-inch-Architects-Triangular-Scale/product_274746

I have never been without one (Ok, more like  a half dozen) since I took drafting in High School.

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