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Sunset 2023 - Surfer project
- Thread starter thenated0g
- Start date
thenated0g
Moderator
Yeah all of those types of glues are crazy strong. Much stronger than the whatever it is gluing together. And allows a lot of movement in a hinge. For the control horns on this ill probably lock the in to the wood by applying e6000 on each side of the hole/slot in the wood. Also dries pretty quick.
thenated0g
Moderator
dropped the servo pockets in this morning which means i have to decide what kind of covering im doing soon. Leaning towards iron on stuff from aloft.
thenated0g
Moderator
Control horns in place. I used e600 on the top. Once that set i dug the foam out around them on the other side. They stuck out thru the wood about 3mm or so and i poured some 15m epoxy in that area to lock them in place. Used those control rod tubes from aloft to get the servos as far forward as i could.
Dug out the electronics and nose weight bay on the underside of the hose. Glued in some ply side walls to reinforce the nose and used some left over EPP to push the ply into the foam while the Gorilla glue setup.
Dug out the electronics and nose weight bay on the underside of the hose. Glued in some ply side walls to reinforce the nose and used some left over EPP to push the ply into the foam while the Gorilla glue setup.
thenated0g
Moderator
They are super thick, maybe 3mm so should be really strong. And i think i have some 20kg servos on the other end.
When in the neutral position the hole is right over the hinge line.
When in the neutral position the hole is right over the hinge line.
thenated0g
Moderator
Figuring out pocket for the underside vertical stabilizer IE fin.
thenated0g
Moderator
went with a balsa, fiberglass, foamboard, fiberglass balsa sandwich using epoxy as glue for the fin. Laminated enough to make 2 in case one snaps. Wanted balsa on the outside for some light rounding of the edges. And i was in a hurry so no vacuum setup
thenated0g
Moderator
They came out at 60g and I still need to sand them.
Went with a friction fit using EPP foam slightly oversized.
Went with a friction fit using EPP foam slightly oversized.
Doc J
Very Strong User
I think you might need an off-road winch to move that "elevator", Nate.
Mulling on this a bit, remembering that air - like water - will always try to take the path of least resistance, its likely that the air will try to escape from under the sides and the off the top of the board. That might mean that it wont fly at all, or that it might fly, but wobbling quite violently from side to side as the forces chage sides. I know the surfer will have fins, but I wonder if a couple of boundary rails along the rear perimeter of the outside profile might keep some of the air - rather like the underside of a Gofast boat or maybe a frisbee?.
Whatever happens it will be really interesting.
Doc.
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thenated0g
Moderator
Actually @Doc J putting some rails or maybe what you would even call long wing tips actually solves two problems. The one you're stating and also making the surfboard side profile actually look like more of a surfboard than a pointy trailing edge air foil so I can make some rails that I'll glue onto the side that will continue the same kind of thick shape back.
Doc J
Very Strong User
thenated0g
Moderator
Definitely going to have to think ahead about the landing. Drop as much speed and ditch in a bush so that undermounted fin doesn't destroy it.
also found a nice video MR d just put out on how to setup expo on a pot/dial. should help as i have no idea on throws. Ill probably have 2x 3 way switches. One each for low, mid, high on roll and elevator. than ill setup 2 dials, one each for expo on roll and elevator.
also found a nice video MR d just put out on how to setup expo on a pot/dial. should help as i have no idea on throws. Ill probably have 2x 3 way switches. One each for low, mid, high on roll and elevator. than ill setup 2 dials, one each for expo on roll and elevator.
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thenated0g
Moderator
While waiting for things to cut on the hot wire cnc i have been working on the surfer. I printed out the surfer lady and started figuring out where the spars will go in the foam board.
I go the servos installed, but i think ill wait to do the elevon connections until after covering. Definitely enough movement even at the x20's stock 50% throw setting.
Just need to figure out where the wholes for the surfers carbon spars will go and i can spackle and cover it.
I go the servos installed, but i think ill wait to do the elevon connections until after covering. Definitely enough movement even at the x20's stock 50% throw setting.
Just need to figure out where the wholes for the surfers carbon spars will go and i can spackle and cover it.
