here you can exchange your experience and datas about your home build boards
- Rare Poster
- Posts: 8
- Joined: Sat Dec 13, 2008 7:19 am
- Kiting since: 2008
- Local Beach: Lincoln City Oregon
- Favorite Beaches: The bay
- Style: Old school surf
- Gear: 11 # 7m Slinshot TD's, Slinshot twin tip
- Brand Affiliation: None
I am planning to laminate 2 6mm pieces of Baltic Birch plywood together on a rocker table. I want to net 1” of continuous rocker. I would like to know from some of the plywood builders out there if they have experienced loss of rocker or spring back after gluing. If so, any advice on overcompensating during glue up.
- Frequent Poster
- Posts: 454
- Joined: Tue Feb 24, 2009 1:43 pm
- Kiting since: 2006
- Local Beach: Grado Pineta (IT), Fossalon (IT)
- Style: Freeride, strapless hooked-in
- Gear: FS S3 19m2 DLX, S3 CE 12m2 DLX & S4 8m2 DLX
Homemade Surf & Snow Boards
- Location: Iv.G.-Slovenia
Naturally, you will get a spring back. I use 2,5 mm ply and it gets spring back, but after bonding the top core layer and laminating it, it holds almost correct shape. I am not so sure about 6mm ply.
If you are doing only ply board- from 2 layers, you should make the rocker about 30% bigger because of the spring back.
- Very Frequent Poster
- Posts: 3259
- Joined: Thu Jun 05, 2003 3:37 am
I would agree with zob.
Wood usually springs back about 25-30%.
Sometimes a little more.
Make sure you leave the board on the table (or clamped, weighted, whatever) for a long time so the glue is fully hardened, especially if you use epoxy, and in cooler weather.....
With epoxy, even though it seems hard after 8 hours, boards can lose their rocker if taken off the table early. I try to leave laminated boards on for >24hours, 48h if I have the patience....
Return to “Board Builders”
Who is online
Users browsing this forum: No registered users and 1 guest