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RC Surfer

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Old 05-05-2008, 04:10 PM
  #176
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Default RE: RC Surfer

This might help.[link]http://www.offshoreelectrics.com/search.php[/link] You need
a coupler that fits both shaft sizes. Type coupler in search box.
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Old 05-05-2008, 04:45 PM
  #177
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Default RE: RC Surfer

I have been dealing with that same righting problem. My friend made
his own surfer guy. He shaped it out of foam and coated it in resin.
Very similar to original Kyosho
surfer
in size and weight. With a little lead in the bilge it works great.
I think the Lisa Doll is to tall and heavy.
I might buy the original Kyosho replacement doll
from [link=http://www.rcsurfrider.com/store/]rcsurfrider[/link] and just expoy it on.
The original Kyosho Doll is low profile and light weight allows keel or bilge
weight to work and helps with righting.. I'm working on this..
I'll post some pic's of my friends surfer dude and board soon. He also made and shaped
the board and added top of the line Mods...........
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Old 05-06-2008, 03:26 AM
  #178
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Default RE: RC Surfer

My surfer lisa self rights quickly and every time. I think it's because I always use a 7-cell flat pack. There is enough room, performane is enhanced, and it self rights every time-maybe it's the extra weight.
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Old 05-06-2008, 03:17 PM
  #179
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Default RE: RC Surfer

I agree toyguy the weight has got to help.
I know my Lisa Doll also would fill with water
witch held it down. I put silicone around the neck
and all joints and it worked much better, but still
gets stuck sometimes.
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Old 05-06-2008, 09:00 PM
  #180
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Default RE: RC Surfer

Hi Randy,

Photo's of Morty's homemade surfer.

jocktime
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Old 05-07-2008, 04:17 AM
  #181
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Default RE: RC Surfer

Wow, This is what I want To Try. The shark Boards And China lisa Leak and Have Problems.
Did Morty Use Glass also. The Shape Looks Awesome. Is The Deck / surfer guy foam / resin too ?
I see Morty used a marine deck seal, thats the way to go. But how do I screw the surfer to the deck ?
Did morty sink stainless nuts in the foam, so he could bolt the deck down to the board?

I bet this dude rips ...
Please help, I want to try one myself.

Any info on foam, stringer glass wieght would help a lot.
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Old 05-21-2008, 02:33 AM
  #182
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Default RE: RC Surfer

Ok, after takin my NQD surfer out a number of times it's clear that the build quality is a little shabby. I find i am having to constantly add water-proofing after a session, broke 2 props and metal parts are very prone to corrosion. The most recent is the rudder assembly came undone and let aload of water in. Opened it up when i got home and all the electronics where soaked! Dried it out in the sun and luckily it fired back up!
Saying that it is good fun - still waiting to install new motor and replace stock electrics but it will do for now.
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Old 05-28-2008, 06:45 PM
  #183
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Default RE: RC Surfer

hey i add weight to the board shark right under the front part of the battery anall is good i also glue the surf in one place an seal his head up an he now right himself .will post pic later but I HAVE TWO NEW BOARD SHARK IN THE BOX
FOR SALE 120.00 EMAIL TO 123COOL321@GMAIL.COM, IAM IN HUNTINGTON BEACH CA. 92648
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Old 05-29-2008, 03:45 PM
  #184
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how do i get the plastic motor coupler off the original prop shaft on the NQD model? Its on super tight - is it glued? Do i need to get a new prop shaft?
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Old 05-29-2008, 08:56 PM
  #185
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Default RE: RC Surfer

biglenn,
I used a Dramal tool with a small cutting blade and put a few cuts in the plastic coupler,
then pealed it off. Then bought a new coupler from Tower Hobbies. No need to
change the shaft.
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Old 06-02-2008, 10:52 AM
  #186
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Default RE: RC Surfer

i have an orignal lisa - this year decided to up the motor and use a water cooled esc. she works fine and a lot more speed but the minute you hit full throttle the esc kicks in? any sugestions? im using the 19 turn motor by ********. the power is there just she cuts for a few seconds the minute apply full throttle. yet out the water she runs fine. esc is a high spec to handle the battery packs as learnt after melting me first one, smoke every were
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Old 06-02-2008, 05:45 PM
  #187
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Default RE: RC Surfer

what ESC is it?
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Old 06-02-2008, 07:09 PM
  #188
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here my boardshark rebuild to work it selfright it all good i cut the surfer off the lid an move it forward 19 turn motor mic swicth for power on only an a volts reguerlater 5v for the reciver add lead under the front part of the battery new rudder sevor
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Old 06-03-2008, 02:35 PM
  #189
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Quote:
ORIGINAL: dacaur

what ESC is it?


hi its this one

http://www.ripmax.com/item.asp?itemi...tegory=060-050

cheers
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Old 06-03-2008, 05:51 PM
  #190
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Default RE: RC Surfer

all I can think of is to make sure you have water going through the heatsink... where is your water pickup? The way you describe it, it sounds like the esc just cant handle the amp draw when you hit full throttle. There is way more resistance to the prop turning in the water than in the air, which would explain why its fine when its out of the water... looking at the specs for the price of that ESC, I would say its probably pretty cheaply made, not cheap like inexpensive, cheap like crappy.... Those are some pretty high numbers for such a low cost esc... If it were made by a reputable company I would expect it to cost $100 at a bare minimum.... So either the esc is not actualy able to handle what its "rated" at, Or you just got a defective one...
You might also try swapping out the motor, but I suspect the esc is the problem,
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Old 06-05-2008, 01:20 AM
  #191
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Default RE: RC Surfer

My latest creation, Any Questions?
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Old 06-05-2008, 01:50 AM
  #192
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Default RE: RC Surfer

Here are a couple more shots. I finally got this thing perfected and ready for market after 2 years of R&D. Enjoy the learning curve and plan on spending lots of money, if you are as hooked as I am.
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Old 06-05-2008, 03:35 PM
  #193
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Default RE: RC Surfer


Quote:
ORIGINAL: dacaur

all I can think of is to make sure you have water going through the heatsink... where is your water pickup? The way you describe it, it sounds like the esc just cant handle the amp draw when you hit full throttle. There is way more resistance to the prop turning in the water than in the air, which would explain why its fine when its out of the water... looking at the specs for the price of that ESC, I would say its probably pretty cheaply made, not cheap like inexpensive, cheap like crappy.... Those are some pretty high numbers for such a low cost esc... If it were made by a reputable company I would expect it to cost $100 at a bare minimum.... So either the esc is not actualy able to handle what its "rated" at, Or you just got a defective one...
You might also try swapping out the motor, but I suspect the esc is the problem,

cheers, ill take it back. i did say if it could not handle the job id be back for a refund.
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Old 06-08-2008, 02:43 AM
  #194
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Default RE: RC Surfer

After the rudder assembly came off and let aload of water in the crappy stock electrics gave up and the motor seized after a week of not using it! so finaly got it together and out with the old and in with the new.
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Old 06-17-2008, 04:11 AM
  #195
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Default RE: RC Surfer

Hi guys, great forum & loads of useful advice.

I too have bought an NDQ on ebay for £25 and was suprised it worked and surfed out of the box - absolutely great fun.....for a while! As expected after only one 3300nimh battery pack the electrics & motor burnt out!!

So following the advice here I've gutted it, waterproofed and have rebuilt with a hitec servo, mtronics marine esc, 19T motor and improved cooling but am having trouble with the motor coupling.

biglenn - notice you are using an NDQ, what coupling did you use for yours?

Ideally I want to use the same motor mount so coupling can't be too big. I have picked up one end of a coupling from a local model shop (similar to the 3.2mm plain coupling insert here - http://www.cornwallmodelboats.co.uk/...couplings.html) but it's not ideal as the grub screw part attaches to the motor shaft but the other end needs to be glued/fixed to the prop shaft (I have dremmeled the plastic off so just have the ribbed end of the prop shaft).

Does anyone have any suggestions for how to fix this to the prop shaft i.e. what glue / fixing material to use? Alternatively can anyone recommend a coupling that will do the job? Both motor and prop shaft appear to be 3.2mm.

Thanks in advance for your help.
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Old 06-17-2008, 05:46 PM
  #196
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Default RE: RC Surfer

007gb - I have exactly the same problem. i've gutted it and fitted all my nice new gear but the motor coupling kept coming loose on the propshaft end - Its 3.2 both ends attached with grub screws that i picked up in a local model shop. I thought maybe some threadlock or something may do it? Or maybe grinding a flat in the propshaft like the motor? Would this work? Small problem with alignment too, maybe a UV coupling would sort that?

Wheres the best place to get new props in the UK? The model shops where i live only stock out of the box stuff.
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Old 06-17-2008, 05:59 PM
  #197
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Default RE: RC Surfer

yea grinding a flat on the shaft would definatly solve the problem, I would do that AND threadlocker...
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Old 06-18-2008, 02:12 AM
  #198
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grinding a flat definitely works....got this information from german rc-forum....

micha
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Old 06-18-2008, 02:30 AM
  #199
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Default RE: RC Surfer

Thanks for the responses guys,

Biglenn - so what coupling did you get that fitted and had 2 grub screws and where was it from? My problem is that I have to glue one end as I only have something with one grub screw - that lasted for 5 mins before coming unstuck! That was with super glue but I've now bought some metal glue to see if that would hold it longer?! A little optimistic I know.

The chap at a local model shop that specialises in boats got a UV coupling for me to look at but they're much longer so new motor mounts would need to be installed and it pushes the motor into the space where the electrics need to be. They did have a good selection of boat spares/parts so you may find props here or at least they can order them - http://www.westbourne-model.co.uk/

Thanks to dacaur & MiFi endorsing the grinding of a flat spot on the propshaft - seems to be the way to go.....if only I could find a suitable coupling......
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Old 06-18-2008, 03:37 AM
  #200
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Default RE: RC Surfer

Think I have found what I need:

A Graupner 3346 - Coupling Sleeve 3.2mm, looks like it has 4 grub screws so with some locktite should hold firm!

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