MADD CATT -41" fantasim saw build

[Cooper]

I get it's how you bond with epoxy that makes a hull strong. I have stoped using hobbie apoxy and started using 3000 psi epoxy. I don't think that the cost differance is much and I like the added strength. I also like the stronger epoxy, as it is easer to find.

Yup, as long as it doesn't become brittle it's all good !! My own rule of thumb- the longer resins and epoxies take to set up the better they are. Like using finishing resin verses using 5min epoxy to lay up fiberglass. But there is a reason why there are so many different types- all have there own applications.

[CornelP]

You could also try to cover the tubing in wire mesh (Hobby King), it gives a clean look. See my MHZ Bandit in the pics: one tube is for water intake, the other is for the ESC extension

[Chrisg81983]

Looking good cooper and at cornelp that is also a clean a$$ build I like it a lot

[Cooper]

Looking good cooper and at cornelp that is also a clean a$$ build I like it a lot

Thanks , yea that is a really clean install.


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[Cooper]

The intakes got a one inch layer of cf on the top side. And when that dried I cut the holes out for the tubes.


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[Cooper]

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[Cooper]

I know I said I was working on making my own battery trays but I broke down and ordered some pre cut trays from jan, kintecracing. Used the spray adhesive on the trays and laid down a layer of cf and fg. Then with an xacto blade I cut out the cf. these slots are going to be where Velcro can be used for strapping in the batts. And should allow adjustment for location. Pool noodles in front and some sort of padding on top and sides to be added later. I don't want these paper weights to be loose.

Oh and you can see the MADD CATT poking his head up for a surprise inspection !!!!
We passed!!


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[Cooper]

The internal view and the Velcro trial fit. It slides under no problems. Wheuuu!


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[Cooper]

I made some bold brackets for securing the hatch ( for bolts). The holes are just for less weight and for resin to have a better ability for grip. Used some 50 grit paper to scuff them up a bit. The brackets were just some angle stock. The longer side is where a bolt hole will get drilled after mounting to ensure alignment. The shorter side is to compensate for the hatch lip so it will be a very sound mount. Some long strand cf chop will be mixed into the epoxy also for mounting them. I just placed them with ca and clamped for now.


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[Cooper]

I drilled (with a point dremmel bit) through the hatch first. I marked the locations on hatch so these were the important holes to get aligned. Then used these holes as a guide to drill down through the aluminum. If you remember when I made the hatch I made a lip and shelf around the edge. The bolts go through this and the lip will be pushed into some foam to ensure a good and tight waterproof seal.
Once I drilled the pilot hole with the dremmel I opened it up to the right size ( 4mm bolts) by using a round file in the drill running backwards so to have to push the file into the work. As you can see this gives a very clean hole. Less work for paint.


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[Cooper]

And the outcome. The 4mm bolts will most likely end up being button head with a neoprene washer for seal. (or knurled screws, just not aesthetically pleasing) and I still have the ability to put one more set of screws into the aluminum cross brace from motor mounts. There may seem to be a space towards front but I left this as open as possible for ease of battery installation. The largest single pack that will fit will be a 5000mah 6s pack. So two 5s or a 6s and 4s will be fine for running 10s. The 6 and 4 will be better as the weight can be located more towards front or back just by pack order-and the trays and Velcro will allow more flexibility. The center of gravity has been very close to the estimated target of 30 to 40+ percent.


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[Prop-a-Gator]

Hey Cooper. I've been out of boats for a while. I recently browsed around out of boredom and came across this great thread. It's good to see you moving on to bigger and better. You've certainly stepped up the build quality. Big kudos!

Your last rig was a carbon Shocker right? What made you decide to go with a FG Fantasm hull - and subsequently add a ton of carbon? It doesn't seem like you're on a tight budget, so I was just curious.

I like the hard tubing. Cool touch. Reminds me of bygone days working on gas turbine gensets. Must be a PITA to run in tight quarters though.

Good luck.

[Cooper]

Hey Cooper. I've been out of boats for a while. I recently browsed around out of boredom and came across this great thread. It's good to see you moving on to bigger and better. You've certainly stepped up the build quality. Big kudos!

Your last rig was a carbon Shocker right? What made you decide to go with a FG Fantasm hull - and subsequently add a ton of carbon? It doesn't seem like you're on a tight budget, so I was just curious.


I like the hard tubing. Cool touch. Reminds me of bygone days working on gas turbine gensets. Must be a PITA to run in tight quarters though.

Good luck.

yea I just couldn't resist bending some tubeing (for a purpose ). And the tight quarters- I've made my own tools to make it easier to get to the motor bolts and stinger bolts. Just some knurled aluminum and round head Allen cut down in size.
Shows there is a ton of knowledge to be gained here at OSE forums. Yup, it's been a short learning curve. I've gone through a few since then. Guess you can say I've been bit by the bug. The shocker was the start of the fast boats. I had it running 85-90mph but,,,, those spacewalks tend to eat away at the hull. Motormounts, battery trays, seam in front , stingers bending inward, broken servos, waterline comming off, exploding speedo, just a few of the lessons learned. Yea I've got my money worth in that hull. Kinda funny you ask, just last night I told the wife (to make her happy) that I was thinking of selling the shocker and she said I should keep it! Wow!!!! She wants another dog though -. ??? As far as the budget, well I wanted to build this to last for more than the summer, so I really wanted it to hold up to several 100mph hard landings. I really like the castle controllers so that's why I decided to go with some neu motors. (could have got 3 sets of tp for same) so hopefully they are worth it. And as far as I found these are really the only ones to go with for high rpms. (I like the high rpm/smaller prop set up).
Thanks for chiming in, I haven't gotten much input from the other seasoned builders, guess that means I'm heading in the right direction? Guess lack of input is better than criticism. :) . Hey get the boat back in the water!!!

Thanks prop-a-gator!!!

[Cooper]

Aggg that last post!! The quote got mixed up with my response! Aggggggg need more coffee, fingers are not responding well yet!

[srislash]

Thanks for chiming in, I haven't gotten much input from the other seasoned builders, guess that means I'm heading in the right direction? Guess lack of input is better than criticism. :) . Hey get the boat back in the water!!!

Thanks prop-a-gator!!!

This has been my finding in the past Cooper.And I have come to the same conclusion,if you take a step in the wrong direction they will bark. hehe

BTW I just got some nice thumb screws for the Komodo instead of packing the Allen key around for the hatch. They look real close to the Aeromarine hatch locks. I'll try to get some pics up when they surface from my move.