Scaling plans for 6 mm thick foamboard

[f237khan]

Currently scratch building the FT Sea Duck. FT's plans are suitable for their 3/16'' thik foamboard (4.78 mm) but since my foamboard is 6 mm, how much do I need to upscale my plans? From past experience, I've noticed that my pieces don't work together if I use the originally sized plans (tight fitting!)

Thank you

 

[Mr NCT]

X/100 = 6/4.78
X = 100 x (6/4.78)
X = 125.5%
Math is Fun!

And now for an opposing view -

 

[Mr Man]

To make it simpler….

6 ÷ 4.78 x 100 = 125%

 

[Mr Man]

Math CAN be hard… But only stuff like trigonometry and Calculus 😂

 

[Merv]

...how much do I need to upscale my plans? ...

Why scale the plans at all, just cut the groves a bit wider.
Be sure to take the extra width form the SIDE of the fuse, not from the top or bottom plate.
Nobody will notice if your fuse is a few mm shorter but you will notice if your fuse is a few mm narrower.