I want to play around with this and i am curious about a few things. Do the stringers intersect (or meet) at the top and bottom? Do the stringers need to be milled with the curve in them or can they be glued to the curve, sandwiched and clamped down? i bought some blocks of eps and i just want to experiment.
http://www.segwaycomposites.com/FoamBlanks.html
I emailed them about the parabolic stringered blanks late last month and Ken said it would be ready sometime this month. I am really excited to get my hands on this. my only problem is because of the way stringers are arranged i can’t just chop a few inches of the nose to get a flater nose rocker which i want. i like my nose rocker below 4 for my small wave boards, somewhere around 3 7/8 usually.
u can do them any number of ways
with most types of glues
but i wouldnt mill the curve at all
bend the curve in as you glue
hold with tape or clamps or jig system
I’m using komatex, and I know that stuff can bend pretty good. I found that cutting the blank with a short jigsaw blade allows the foam in the center of the blank to stay put. The nose and tail will flop around, but it will help keep the stringer in place while I clamp up.
I’m using elmers foaming PU glue to fill in the gaps of the rough cut from the jigsaw. You can put in a couple of drops of white paint to color the glue.
I’ll post some photos when I have time to glue up another blank.
for eps the most accurate way to cut a blank is with hotwires and templates
if you search the archives there are some funky and simple hotwire tools that will do what your after