How to create a curved joint

video How to create a curved joint
Following on from the robust 90degree joint in cardboard, is the sublime curved joint. This video shows how to get a very smooth curve in cardboard, which underpins more complex techniques to come. More at but I am really keen to see how this works in Instructables format - let me know what you think!
In woodworking, that is called "kerning" and it how you create a curved surface in woods you can steam bend. Never occurred to me to apply it to cardboard.

You could probably make a cylinder if you we're skilled enough.
Hey Jude (author)  shannonlove1 year ago
Thanks for the info. I did not know the term as it happens. btw - have you used 'Bendy Board' as a quick prototyping materials for stuff like this in wood?

As for Cylinders - very easy to work this technique into it - as show in a picture from Boon Chew - who attended my workshop last Saturday in London.

the 'Type Torpedo' !!

Good times =)
I typed, "Its call 'kerfing'..." but autocomplete thought otherwise. 

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