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Old 08-04-2008, 01:19 PM   #21
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Originally Posted by Scand View Post
Cool…
Are the templates CNC cut?
yep, with a water cutter then slotted together like one of those wooden dinosaurs.
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Old 08-04-2008, 01:54 PM   #22
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The CNC reproduced my very very carefully placed spray rails - which took weeks of careful planning and thought to get exactly right - and some busted with sandpaper took about 4 minutes to remove them!
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Old 08-04-2008, 02:05 PM   #23
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Location: West Coast of Norway
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Interests: surface piercing props, stepped hulls, air entrapment hulls
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Boat make: PetterTintorera
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Impressive…
I am working an a class 3b/c design for myself…was planing the build a scale model to do some testing…
Was the CNC water cutting expensive? Would you recommend someone that does this?
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Old 08-04-2008, 03:20 PM   #24
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Boat name: Seahorse.org
Boat make: a V24 and a SLOW unstable ICE Bladerunner
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Would suggest the largest model you can build - preferably 1/3rd scale! And I do happen to know some people who do a very very good job of working a model from a design half on paper and half in your minds eye.....
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Old 08-04-2008, 04:55 PM   #25
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Location: West Coast of Norway
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Interests: surface piercing props, stepped hulls, air entrapment hulls
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Boat make: PetterTintorera
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I think the shoestring budget for my project ( http://www.boatmad.com/forum/attachm...4&d=1203255450 ) dictates a self-build…
On past models ( http://www.boatmad.com/forum/attachm...0&d=1153240118 ) I have modelled all the parts in 3D and then printed out full (model) scale cutting templates. Cutting all the bits by hand takes ages and would be good to avoid…the rest is normally relatively strait forward. CNC cutting is the way forward...if it is not to expensive...
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Old 08-04-2008, 05:11 PM   #26
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RB engineering are the people we used, they did ours well enough and were very helpful.
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Old 08-04-2008, 05:47 PM   #27
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Location: West Coast of Norway
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Interests: surface piercing props, stepped hulls, air entrapment hulls
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Boat make: PetterTintorera
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thanks
will contact them when I am ready to build...
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Old 08-04-2008, 08:37 PM   #28
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S6 connection to engine

don't use a hard shaft.
the best durability results are known with clutch and flex cable.
worse was flex without clutch because of shock loads during start up, kill and jump phases.
A hard shaft would be a killer for this S6!!
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Old 11-04-2008, 04:19 AM   #29
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I like the idea of a clutch, but thought they never lasted in boats. What sort do you use?
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Old 11-04-2008, 08:22 PM   #30
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clutch

we all use the same as in 1/5 and 1/4 cars, the bell has a inner diameter of 52mm. Have a look to my web-catalog at www.matho-powertrain.de and scroll below the engines and gearboxes, then you could see,
I think you guys in UK play with your models in salt water so it would be a good idea to use a bell & bellshaft made of stainless steel.
This could be a problem because the most Germans run in sweet water and the dealers here use the cheap normal steel bells & shafts (one piece solution as in the cars).
I have a better solution - as I think - but not forseen for my web shop.
Maybe in the future. I try to add some pics....
You see a blue anodized clutch set with stainless steel bell made by me
You see the same in counter rotating, made by me also thru gearbox
(could be ordered in black at www.wd200-modellbau.de
You see 2 pics with the normal system as well.

CU

Thomas
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Old 11-04-2008, 11:46 PM   #31
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Thomas, I presume that's a centrifugal clutch. Do you use a lining on the shoes or is it metal to metal?
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Old 12-04-2008, 09:13 AM   #32
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Boat make: various models up to 360cm length
Engines: model: 1 to 4-cylinder, cylinder displacement 29 to 30.5cc, real car engine 5.4litres V12
Cruising area: Heilbronn and Hessigheim sluice area, Zurich lake (CH), lake Traunsee (A)

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yes this is a centrifugal

clutch. I made a system search in my brain but did not find the english word.
And yes: there is a lining on the shoes, don't know the material's spec but suppose it's similar to the brake shoes of passenger cars.
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Old 31-10-2011, 02:28 PM   #33
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Quote:
Originally Posted by robbie View Post
Some good pics and tandem engines. Scroll down to see more build photos.

The S6 looks really stunning but I still can't find a price yet, but it must be mega bucks.

http://www.rcuniverse.com/forum/m_5062328/tm.htm
What hull is that and where would I be able to find a bad boy that size....
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