2 More Balsa Compsands, Warts and All.
Here ya go. After my first Balsa Compsand, the tiger stripped twinzer fish, with multiple failures and a few success, my wife wanted a fish. I needed a new long board, too. Less construction details and pictures, but no less failures. Ha.
First the Fish: 6’-2", 16"N x 23" W x 15"T, 2 ½" thick or so. For my wife, she’d be the upper end of the beginner scale. She can catch ‘em and stand up almost every time, but likes the high tide sloppy ones best. Glass was 4 under 4 over all around, I don’t have the weight off hand, I’d guess 6 lbs. or less.
- Cut the 1# EPS foam profile and outline close with hot wire. Shaped the bottom, vac bagged the 1/16" bottom skin. Had some “roll over” of the foam due to the bag pulling. Next one I’ll lay up the bottom skin proud of the outline and router the outline. That should help the appearance of the seam at the rail/skin.
- Built up the rail material. 1/8" balsa. Harder to bend than 1/16" of last time but quicker work
- Finished shaped the deck and rails.
- Measured and located the fin positions, routed from the bottom through the deck (daylighting) taped the bottom hole, and poured 8# pour foam into the deck hole. Let the foam do it’s thing, sanded to match the deck.
- Vac bagged deck skin slightly proud, sanded to overlap and match up nicely with rails. This surprises me how neat the line comes out, with out over thinking it. Just sand and BAM, there it is.
- Thin coat of epoxy over the balsa.
- Lam bottom, cut lap the deck.
- Lam on the fabric inlay. It stretches like crazy. Follow cut lap to trim fabric once cured.
- Lam deck, hotcoat, poly gloss coat. Worked great on the bottom, failed on the deck. Just never kicked, I had to use some old resin (?). Acetone bath, finish is spray polyurethane.
- Routed for the LokBox. Built a little jig, it was so high that I had some slop around the flange. I’ll trace a razor blade slice and free hand it next time. Found that post too late. Kies fiberglass keel fins, long base, outside foil only.
- Same 8# pour foam around the vent plug and leash plug.
The long board is 9’-0", 19"N x 23"W, 15"T, 3" thick or so. Serious belly roll the entire length, too much rocker (maybe) thanks to the length in the vac bag, I guess. It really curled up.
- Single fin box with 8# pour foam halo through the deck. Old school leash loop through the fin box. Should be OK because the 8# foam is water proof, there is still resin surrounding the leash string hole. I’ll let you know.
- Paint is straight rattle can. The colors are ode to Bert’s old board (with the hips), first compsand I saw. The spray was originally very close to the rails, after coating the balsa with epoxy and some sanding, it blended to a nice Red/Orange/Yellow. Opps, I mean cool.
Neither board has been ridden yet. Little north swell on the way for this week end. Ha.
How ‘bout it? Whats ya think?
WM