Miss Geico 29 V3 winter build
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Knocked out the ESC wiring... mostly. I made a serial battery harness, tied in an Etti cap bank, and soldered on Castle 6.5mm connectors. I forgot to coat the bottom of the cap bank, so the shrink wrap has to come off that. I also discovered the motor I had installed has a bent output shaft, so I skipped cutting the motor wires and soldering on bullets on the ESC until the new motor arrives. I don't like the yellow motor wires so I'm going to hunt down some black woven wire loom to cover those up. The fit behind the motor, and under the deck is so tight, there's no real room for a proper ESC mount. I'm going to use 1" velcro on the tunnel and attach it that way. The cap bank will probably live in a hole I'll carve out of the forward flotation between the deck stringers.
2019-01-31 15.32.55.jpg 2019-01-31 16.42.09.jpgVac-U-Tug Jr (13mph)Comment
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Took a few weeks off and finally knocked out the hatch reinforcement. Very solid now, and still GPS friendly. Learned some important lessons with fiberglass VS laying carbon. First, 3/4oz fiberglass fabric is too thin, and much to fine a weave to wet out. I put 5 layers of that down first and it was a nightmare to get the air out and not snag it with the brush. Once that dried, I was able to sand out some of the fabric folds and cleanup some other imperfections. For the final layer I used 6oz fabric from Autozone, much more like the 3K 2x2 carbon cloth I'm used to. It had a coarser weave, laid down better, and did not trap air as easily.
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I'm surprised you had that much trouble with the 3/4oz glass. I'm new to boating but not RC, I've been flying and scratch building going on 30 yrs and I use 3/4oz over foam quite a bit. What type of resin were you using on this build? Which by the way is awesome - I may be new to boats but good craftsmanship transcends what rc vehicle you're building - it's universal!
I need to get back on this project. Haven't had the motivation or desire to get much done recently. All I've managed to complete recently are some wiring extensions and cooling lines. The new motor arrived after I discovered there was a bent shaft on the used one I bought from the classifieds hereWaiting for a newly machined custom water jacket to arrive so I can wrap that in carbon, then get everything into the motor mount. I'm also toying with the idea of drilling out the hatch pin holes in the forward deck and inserting small diameter brass tube sleeves for added strength and to potentially eliminate the chipping that is common on these hulls in that area.
Vac-U-Tug Jr (13mph)Comment
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The viscosity of the resin does make a big difference in how glass wets out. Since I was using the 3/4oz glass to make the foam more "ding" proof, and not really as a structural component I was able to thin it more than I would have if I was making something like a mold, and in your case, going straight to 2oz glass would probably be the better move. I wasn't trying to fault your work, you obviously know what you're doing and it shows! I was very impressed with your work. I have yet to build a boat, but after seeing some of the ones in the gallery I think I'm going to give it a shot.Comment
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The new motor is mounted and aligned. The water jacket was machined down and wrapped with carbon. I soldered on bullet connectors to the ESC motor wires and then installed the ESC under the deck. The water lines are run through the brass eyelets up under the deck along with the wiring extension to extend the throttle wire to the receiver. I cut and shaped pool noodles and slid them under the front deck and into the sponsons. I still need to drill and install the water outlets on side of the hull, mount the receiver under the rear deck, and install a fresh set of decals. Getting close...
2019-03-02 17.40.48.jpgVac-U-Tug Jr (13mph)Comment
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Everything officially mounted inside electronics wise and all cooling lines are run. Rudder and strut are mounted again and steering has been trimmed. Installed the decals, which turned out great on one side, terrible on the other. I was mocking up the decal location and it touched the hull. Normally no big deal, but then the entire boat slipped in my lap and the decal folded over on itself. I got it apart and flat again, but it stretched out in a few spots and wouldn't lay flat. Oh well, I'll buy a new sheet and have nearly a full set of spares.
2019-03-24 11.19.53.jpg 2019-03-24 11.20.13.jpg 2019-03-24 11.21.37.jpgVac-U-Tug Jr (13mph)Comment
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Love it Ryan!
How much to do my V1? Kinda kidding...
I’m assuming you blue printed the sponsons, but didn’t document.
How it run? 6s? Eek. You have learned too much from Travis!"Look good doin' it"
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