Don’t forget that your seams will make your plate smaller. The wider your blade the bigger your plate will be.
This is a tutorial for making a Dresden plate with 12 blades, Marion. Hope it helps.
https://www.aquiltingsheep.com/2012/...FBQUFBRnl0R1Qw
Edited to add add this tute that explains the math
http://thecraftyquilter.com/2017/02/...late-tutorial/
Last edited by JanieW; 04-09-2019 at 02:25 PM.
Reason: adding another link