Wednesday, November 21, 2012
I took advantage of a warm day to painstakingly mold a 24 foot piece of e-glass tape onto the keel chine of Tridarka's second ama. (You will recall that Tridarka is our 21 foot trimaran sailing boat. The Amas are the outer hulls that keep it upright). As I previously explained the radius had to be re-sanded often removing most of the old glass which had not been properly saturated (epoxy starved). This is a nerve-wracking process of working against the clock while applying and squeegeeing excess epoxy. When I say hand squeegee I mean it. I used my gloved hand to mold and massage the glass around the tight corners. At least three applications of epoxy were added to make sure of the wet-out while urgently rolling out any runs and drips. Did I mention nerve-wracking?
Perhaps it's time to unveil our winter project. "Ha," you say, "don't you have more projects than you can do in a year already." Well, right you are. However the outside work on the bigger boats is at an end. So we bring out the plans for the Kiwi Puddle Duck racer. Karen is quite taken with the idea. It's a small 4'x8' sailboat that builds rather easily and is lateen rigged. I just happen to have the rigging from an old Sunfish which is just about perfect for the project.
I promise not to slum up the pages of this blog too badly with blow by blow stuff. If I do any detail stuff it will carry the appropriate warning so the reader may skip that edition of the blog.
Sunday, November 18, 2012
Well there it is. It did turn out just fine after a couple of hours of timid check and recheck.
Next, what size are should the pilot holes be? How long should the screws be? It is balsa cored sandwich. Therefore the screw should end before the other side of the sandwich. Answer to what pilot hole size--Google like always. One-eighth inch for a #8 sheet metal screw.
Here's the base mount for the cable clam, a really nifty way to seal out the water. I had to bore a hole in the gasket block and slit the side afterwords. Then mounting the wedge gasket looks like this.
Finally the two nylon sections are screwed together compressing the wedge gasket.
Saturday, November 17, 2012
This is quite an undertaking from an engineering standpoint and the electrical wiring standpoint. I will document my findings as I go
The #10 cable is daunting to work with but the waterproof box and weather tight fittings handle nicely once they are managed correctly. These kits come from eMarineSystems.com. I don't want to say that the directions leave a bit to be desired but, I dare say they probably think that if you can't figure it out, you probably shouldn't be tackling the job. Well, I'm just stubborn enough to think I can. So far, so good.
Next comes the new Blue Sea modern three stage charging system. It will handle up to 25 amps so I plan on mounting the old solar charger (120 watts) on the bimini. This will give me about 17 amps total charge under ideal conditions. The batteries are well taken care of with the intelligent charge system. More to follow.