3 ms·
See also French curves: https://en.m.wikipedia.org/wiki/French_curve https://en.m.wikipedia.org/wiki/French_curve And, more like that in the post, the "flexibl
by samwillis 4y ago
See also French curves: https://en.m.wikipedia.org/wiki/French_curve https://en.m.wikipedia.org/wiki/French_curve
And, more like that in the post, the "flexible curve ruler": https://www.ryman.co.uk/helix-flexi-curve-ruler https://www.ryman.co.uk/helix-flexi-curve-ruler
I used both during my Industrial Design degree in the mid 00s, but never in practice after. I suspect some people still do though.
- chadcmulligan 4y agoMy dad used to have a set of French curves - he was a sign writer and used them for cutting the templates for silk screen printing, probably in the 60's or there abouts.
- Someone 4y agoThat “flexible curve ruler” seems to be called a Lesbian rule (after the island; https://en.wikipedia.org/wiki/Lesbian_rule https://en.wikipedia.org/wiki/Lesbian_rule), and can also be used to measure curve length (bend the rule so that is matches the curve to be measured, mark begin and end of the to-be measured length, straighten the rule, and use a straight ruler to measure the length between the marked points)