Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Lifeboats => Topic started by: morgsy on June 18, 2011, 12:45:33 pm

Title: 1/12 Arun Build
Post by: morgsy on June 18, 2011, 12:45:33 pm

I first posted in the beginners section and had an excellent welcome, so i though i better post in a more appropriate section for my build thread.

http://www.modelboatmayhem.co.UK/forum/index.php?topic=30704.0

I have now ruffly fitted the RC gear into the boat and had a couple of test runs, http://www.youtube.com/watch?v=Ow04f5AMoZU
but one of the couplings broke yesterday and I noticed last night that the other coupling has a little damage, there is now a bit of play in the center of the universal coupling, does anyone have a stronger alternative than the red plastic ones? I know metal ones exist but have yet to find a supplier.

I am running on 2 12v 8ah motorbike batteries with xyh4250-800kv-outrunners and seaking 60A speed controllers.
The speed controllers are a pain in the backside as i have had to program every time i use them! also the reverse is a nightmare to get on my left motor due to the controller setup.


I will post some pics of its first decent 10min run.

Chris

Title: Re: 1/12 Arun Build
Post by: morgsy on June 18, 2011, 12:49:13 pm

(http://s2.postimage.org/14a6rea1w/run4.jpg) (http://postimage.org/image/14a6rea1w/)

(http://s2.postimage.org/14a8exmjo/run2.jpg) (http://postimage.org/image/14a8exmjo/)

(http://s2.postimage.org/14abq0bj8/run3.jpg) (http://postimage.org/image/14abq0bj8/)

Title: Re: 1/12 Arun Build
Post by: morgsy on June 18, 2011, 12:53:13 pm

(http://s4.postimage.org/1sj01t0pw/run1.jpg) (http://postimage.org/image/1sj01t0pw/)

Title: Re: 1/12 Arun Build
Post by: david j on June 18, 2011, 01:16:58 pm

hi, try modelboatbits they are on ebay or direct to  www. modelboatbits hope this helps

davidj   :-))

Title: Re: 1/12 Arun Build
Post by: Number 6 on June 18, 2011, 01:33:16 pm

Looking good, have a look at these couplings, may be of some use to you, Dave.  :-))

http://www.cornwallmodelboats.co.uk/acatalog/couplings.html (http://www.cornwallmodelboats.co.uk/acatalog/couplings.html)

Title: Re: 1/12 Arun Build
Post by: 6705russell on June 18, 2011, 01:37:14 pm

For this kind of torque you really need either solid couplings or the heavy duty flexible from Mobile Marine Models....

Russ

Title: Re: 1/12 Arun Build
Post by: Number 6 on June 18, 2011, 03:06:13 pm

Forgot about the Mobile Marine ones, here's a link to them too, Dave.  :-)

http://www.mobilemarinemodels.com/acatalog/Safety_Couplings.html (http://www.mobilemarinemodels.com/acatalog/Safety_Couplings.html)

Title: Re: 1/12 Arun Build
Post by: morgsy on June 18, 2011, 05:09:38 pm

Thanks guys, which size do you think i require from
http://www.mobilemarinemodels.com/acatalog/Safety_Couplings.html

I am guessing standard....

I found a spare coupling from another model, so going for another run tonight, will get the mrs to get a few decent snaps.

Kind Regards,
Chris

Title: Re: 1/12 Arun Build
Post by: stoney on June 18, 2011, 05:15:20 pm

 I've used the heavy duty flexible couplings from MMM in my 10th scale Trent very good handles the torque  


 Paul

Title: Re: 1/12 Arun Build
Post by: morgsy on June 19, 2011, 08:29:04 am

Thanks for the input Paul,

Does anyone have any internal pics of there Aruns/Severn/Trent, my internals are just botched together at the moment and i want to make it tidy and properly before i start with fittings etc...

I currently place 1 battery between the prop shafts and 1 just forward of the center of the boat, can anyone suggest a decent mount point?

Title: Re: 1/12 Arun Build
Post by: CJ1 on June 19, 2011, 09:14:01 am

This is how I've done my 1/12 Tamar. The batteries are in trays at the sides to help slow down "roll" of the hull when sailing and it means they can be slid fore and aft for trim. I've used rc helicopter velcro tape to hold them down.
There is a servo cutout (but no servo yet) above the stbd. motor which will be used for the transom door opening. The one above the port motor is for the rudders.
There is a separate battery at the front for the bow thruster.

(http://s3.postimage.org/35exp981w/P5190061.jpg) (http://postimage.org/image/35exp981w/)

(http://s3.postimage.org/35f4bem10/P5190060.jpg) (http://postimage.org/image/35f4bem10/)

Chris

Title: Re: 1/12 Arun Build
Post by: morgsy on June 19, 2011, 10:49:54 am

Thanks Chris,
What batteries are you using as i am currently on Motorbike batteries that weigh quite a bit, is that not going to be too much weight in the center? Or is that the best way to balance the boat, in my trials the roll is quite good at the moment, any chance of a pic of your setup?

Cheers,
Chris

Title: Re: 1/12 Arun Build
Post by: CJ1 on June 19, 2011, 05:00:20 pm

I am using a pair of Graupner 12V 7aH batteries, one for each motor, Graupner Speed 900s. They are quite heavy, but the boat is still nowhere near it's waterline yet. All electrics were from A Model World. I'm not after speed, so I have tried to keep it basic and simple.

I had read that by spreading the weight laterally, ie sideways, in the boat, there is less tendency for the boat to bob about in the water.....now there's a can of worms!

(http://s2.postimage.org/1kwgf6x5w/P5190062.jpg) (http://postimage.org/image/1kwgf6x5w/)

Chris

Title: Re: 1/12 Arun Build
Post by: stoney on June 19, 2011, 11:14:14 pm

 
Hi Chris

a couple of pics of my Trent set up the motors are 50 55 brushless outrunners , speed controllers are Turigy 180amp with reverse and I am using  4 cell 6ah lipo's
one for each motor . Also I am using a 3 cell 2.2ah lipo for receiver and for running the sound system and cooling water pump a 12v 3.3ah gell cell

 Paul

Title: Re: 1/12 Arun Build
Post by: morgsy on June 21, 2011, 01:43:50 pm

What sort of run times do you get Chris/Paul?

Title: Re: 1/12 Arun Build
Post by: CJ1 on June 21, 2011, 01:47:25 pm

I have only done trial runs so far, but had half an hour non stop pottering around a lake so far with the Graupners.

Chris

Title: Re: 1/12 Arun Build
Post by: stoney on June 21, 2011, 05:10:15 pm

 Hi Chris

 I get about 20 mins running at scale speed which is'nt to bad considering the boat weighs 56lbs

 Paul

Title: Re: 1/12 Arun Build
Post by: morgsy on July 10, 2011, 01:46:03 pm

my boat is now around 30kg as i have 2 sets of batteries, on the plus side i am now getting a good 30 min fast running and i wreckon an hour pottering about with a few quick runs. :}

I think its time to start the detailing!
Step 1 stanchions i think..

Title: Re: 1/12 Arun Build
Post by: morgsy on July 29, 2011, 07:07:49 am

Good morning,
Build update....Textured deck was done last night, BnQ do textured spray paint for ornaments (and now lifeboats  ;) looks brilliant, I am made up with the finish so far, I will give the deck another 'grey' spray tonight then I am ready to start gluing on all my bollards etc, no sign of stancions though! I have contacted adrian from Speedline and he can provide them at £2.50 each and there are about 30! 35 if count the back and sides! Ouch on the wallet, think that will be for next pay day!

Got myself a dremel 300 also so let the cutting and sanding begin!

Running update, I have had the boat running for about 1.5 hours, just pottering with the club at the 3 sisters. Very pleased with run times.

Title: Re: 1/12 Arun Build
Post by: typhoon on July 29, 2011, 08:05:12 am

model slipway do 1/12 stantions at 40p each. have a look at there web site at lifeboat fittings. not used em meself but look ok and a cheaper option.

Title: Re: 1/12 Arun Build
Post by: fatcat123 on July 29, 2011, 09:28:54 am

 speedline do nice brass stanchions. i got some for the trent.

Title: Re: 1/12 Arun Build
Post by: morgsy on July 29, 2011, 01:22:50 pm

I am struggling to find a model slipway website? Are they still available?

Title: Re: 1/12 Arun Build
Post by: gribeauval on July 29, 2011, 02:28:56 pm

Link to Model Slipway site:  http://www.modelslipway.com/ (http://www.modelslipway.com/)


Link to 1/12th scale lifeboat fittings:   http://www.modelslipway.com/fittings/Lifeboat_fittings/lifeboat_fittingslist.htm (http://www.modelslipway.com/fittings/Lifeboat_fittings/lifeboat_fittingslist.htm)




Mike

Title: Re: 1/12 Arun Build
Post by: morgsy on July 31, 2011, 07:49:53 am

Thanks Mike..

Title: Re: 1/12 Arun Build
Post by: morgsy on August 02, 2011, 11:48:40 pm

Thought I would post some pics of the progress...
(http://s3.postimage.org/2w0opmmf8/IMG_1168.jpg) (http://postimage.org/image/2w0opmmf8/)

(http://s3.postimage.org/2w10ae1vo/IMG_1178.jpg) (http://postimage.org/image/2w10ae1vo/)

(http://s3.postimage.org/2w25mtq84/IMG_1179.jpg) (http://postimage.org/image/2w25mtq84/)

(http://s3.postimage.org/2w2xqymmc/IMG_1180.jpg) (http://postimage.org/image/2w2xqymmc/)

(http://s3.postimage.org/2w34d40lg/IMG_1181.jpg) (http://postimage.org/image/2w34d40lg/)

(http://s3.postimage.org/2w3az9ekk/IMG_1182.jpg) (http://postimage.org/image/2w3az9ekk/)

(http://s3.postimage.org/2w3cmsr2c/IMG_1187.jpg) (http://postimage.org/image/2w3cmsr2c/)

(http://s3.postimage.org/2w3wh8wzo/IMG_1189.jpg) (http://postimage.org/image/2w3wh8wzo/)

Title: Re: 1/12 Arun Build
Post by: morgsy on August 02, 2011, 11:52:50 pm

(http://s3.postimage.org/2w4oldtdw/IMG_1184.jpg) (http://postimage.org/image/2w4oldtdw/)

(http://s3.postimage.org/2w4rwgidg/IMG_1186.jpg) (http://postimage.org/image/2w4rwgidg/)

Title: Re: 1/12 Arun Build
Post by: pugwash on August 03, 2011, 12:03:03 am

Looking really good.   :-)) :-)) :-))

Geoff

Title: Re: 1/12 Arun Build
Post by: CJ1 on August 03, 2011, 09:11:51 am

Good finish.
What did you use for the red and yellow hull stripes?
Chris

Title: Re: 1/12 Arun Build
Post by: morgsy on August 03, 2011, 02:15:53 pm

That would be trimline purchased from Cornwall modelboats, for ref 2.4 meters is not long enough to cover the entire area so for the gap i had 2 use 2 different sizes of trim.

Just been sailing and after 2h or so lost my rudder servo, just died!

Title: Re: 1/12 Arun Build
Post by: morgsy on August 13, 2011, 05:07:05 pm

I have just received my stanchions from Modelslipway, I must say I am a little disapointed, they look tiny....I think they might be 2cm shorter than what is on my plans, i could cut off the base plate and put a brass sleeve on them to extend...

Any ideas anyone or just go for it and stick them on?

I will try and get a pic of the size next to the boat and plans...

Title: Re: 1/12 Arun Build
Post by: gribeauval on August 13, 2011, 07:53:50 pm

I assume that when you sent the order you specified that you wanted the 1/12th scale ones as they also do 1/16th scale ones.


Mike

Title: Re: 1/12 Arun Build
Post by: morgsy on August 14, 2011, 07:55:19 am

Yes I did, I will send them an email to get the sizes...

Title: Re: 1/12 Arun Build
Post by: morgsy on August 22, 2011, 11:20:26 am

Just another progress report...


(http://s4.postimage.org/1kzd57xyc/220811.jpg) (http://postimage.org/image/1kzd57xyc/)

(http://s4.postimage.org/1kzn2g0x0/2208112.jpg) (http://postimage.org/image/1kzn2g0x0/)

(http://s4.postimage.org/1kzopzdes/2208113.jpg) (http://postimage.org/image/1kzopzdes/)

(http://s4.postimage.org/1kzqdipwk/2208114.jpg) (http://postimage.org/image/1kzqdipwk/)

(http://s4.postimage.org/1kzs122ec/2208115.jpg) (http://postimage.org/image/1kzs122ec/)

(http://s4.postimage.org/1kztolew4/2208116.jpg) (http://postimage.org/image/1kztolew4/)

Title: Re: 1/12 Arun Build
Post by: HS93 (RIP) on August 22, 2011, 11:44:50 am

Quote from: Chris J on June 19, 2011, 09:14:01 am

This is how I've done my 1/12 Tamar. The batteries are in trays at the sides to help slow down "roll" of the hull when sailing and it means they can be slid fore and aft for trim. I've used rc helicopter velcro tape to hold them down.
There is a servo cutout (but no servo yet) above the stbd. motor which will be used for the transom door opening. The one above the port motor is for the rudders.
There is a separate battery at the front for the bow thruster.

(http://s3.postimage.org/35exp981w/P5190061.jpg) (http://postimage.org/image/35exp981w/)

(http://s3.postimage.org/35f4bem10/P5190060.jpg) (http://postimage.org/image/35f4bem10/)

Chris

Nice boat well built but just one suggestion raise the receiver as high as you can it looks to be below or near the waterline and I think am I right it is 2.4gh so you may have problems with loss of signal

peter

Title: Re: 1/12 Arun Build
Post by: CJ1 on August 23, 2011, 09:34:26 pm

Peter,
Thank you for the tip, you are right, it is. I didn't know it would be a problem.
It will be moved for the next photo shoot and trial sail! That's why I love this forum.
kind regards
Chris

Title: Re: 1/12 Arun Build
Post by: morgsy on August 28, 2011, 04:48:46 pm

Build update:
After visiting the model boat convention on Sat I returned with some water pickups and tubing, these are now fitted but the water only tricles out the exit holes on the back of the boat, this was on a trial test in the pond so might get a bit more flow on the lake? Any thoughts anyone? Or could it be that they not close enough to the prop?

I also picked up a bargin from the component shop stall, 2 * 12v9a lead acid for £22!
Got a flashing LED for the super structure, just need to encorporate this into my nav lights purchased from Cornwall models, and my botched radar/ old servo....

Pics to follow.

Title: Re: 1/12 Arun Build
Post by: 17-21 on August 29, 2011, 08:57:46 am

Quote from: HS93 on August 22, 2011, 11:44:50 am

Nice boat well built but just one suggestion raise the receiver as high as you can it looks to be below or near the waterline and I think am I right it is 2.4gh so you may have problems with loss of signal

peter

Your 2.4 receiver will be fine low down, you will not have any problems with loss of signal, all mine are low in the hull with no problems, the only thing to think of is if you get any water in the hull.]

Phil.

Title: Re: 1/12 Arun Build
Post by: morgsy on August 29, 2011, 12:17:09 pm

Something to note the wires from my brushless motors that connect to the ESC were VERY VERY HOT when i did the test run in the pond, any suggestions why they were so hot? And is there anything that can be done to cool them? My dad wreckons they were smoking they were that hot?

Bit worried?

I was testing having the ESC's water cooled aswell!

Title: Re: 1/12 Arun Build
Post by: Shipmate60 on August 29, 2011, 12:39:53 pm

They have to be carrying too much current for the size of cable.
Either rewire with heavier cable or change the set up to reduce the power consumption.

Bob

Title: Re: 1/12 Arun Build
Post by: morgsy on August 31, 2011, 11:03:35 pm

http://youtu.be/dDufE9TfX-8

See the latest video, it takes off like a rocket now!

Only running on 2 lead acid batteries 12v 9a.

Title: Re: 1/12 Arun Build
Post by: morgsy on September 15, 2011, 06:23:40 pm

Re-painted the super structure today, wont currently let me attach the images, i will try and upload later...

Title: Re: 1/12 Arun Build
Post by: morgsy on September 16, 2011, 06:47:50 pm

(http://s4.postimage.org/1fq05rp7o/paint.jpg) (http://postimage.org/image/1fq05rp7o/)

(http://s4.postimage.org/1fq6rx36s/paint2.jpg) (http://postimage.org/image/1fq6rx36s/)

(http://s4.postimage.org/1fqde2h5w/paint3.jpg) (http://postimage.org/image/1fqde2h5w/)

(http://s4.postimage.org/1fqf1ltno/paint4.jpg) (http://postimage.org/image/1fqf1ltno/)
 
Note the addition of the white grab rails, these will be painted black but they look good in white i think!

Title: Re: 1/12 Arun Build
Post by: morgsy on September 19, 2011, 07:34:33 am

Couple of pics from Sundays antics!

(http://s2.postimage.org/2m52a2w2s/photo.jpg) (http://postimage.org/image/2m52a2w2s/)

(http://s2.postimage.org/2m53xm8kk/photo2.jpg) (http://postimage.org/image/2m53xm8kk/)

Title: Re: 1/12 Arun Build
Post by: morgsy on October 30, 2011, 02:02:48 pm

(http://s3.postimage.org/fc7ha1bhb/photo.jpg) (http://postimage.org/image/fc7ha1bhb/)
Latest pic, note the addition of LED's, deck lights and nav lights...

Title: Re: 1/12 Arun Build
Post by: batfish on December 18, 2011, 01:58:48 pm

Hi mate,

Any updates??

Title: Re: 1/12 Arun Build
Post by: morgsy on December 23, 2011, 10:16:01 am

Sorry, been busy with work of late, not had time for the boat as it resides in the dry dock at dad's garage...no space for the "xxxxx" at my house, and the 2 year old runnning round will make short work of my stanchions!

Will post some more pics asap...

Title: Re: 1/12 Arun Build
Post by: returnee on December 23, 2011, 02:14:11 pm

Hi
A nice build, yes the grab rails look good in white , what did you construct them out of,
Regards Gerard.

Title: Re: 1/12 Arun Build
Post by: morgsy on December 30, 2011, 02:30:30 pm

The grab rails are thin brass rod, pain in the backside to bend correctly!

Title: Re: 1/12 Arun Build
Post by: batfish on January 07, 2012, 02:25:04 pm

Hi Mate,

Sorry it has taken awhile but from what i gather this is the list of fittings from various sources you require for Arun.

Arun Fittings list requirements. Incl part no's,

Mike Waverley models.

Flybridge wheel [FT2]   x1
Wheelhouse wheel [FT208]    x1
Compass [FT99]    x2
Anchor [FT3]    x2
Throttles [FT79]    x2
Axes [Large and small - FT62 & FT56 respectively]    x1 of each
Handrail sockets / brackets [FT9]    x24
Horn [FT92]    x1
Deck lights [FT61]    x6
Vent Covers [BR5]    x2
Boat Hook Ends [WY21A]    x2

Plus from martin,Mac mouldings

M096 Life Belt  x  2
M150 Door  x 1
M152 Hatch  x 2
M191 Window Set  x 1
M226 Fuel filler cover  x 2
M227 Deck light fitting x 1
M228 Bollards  x 3 packs
M230 Front bollard  x 1
M231 Rear bollard  x 1
M241 Life Raft  x 1
M267 Exhausts x 1 pack
M271 Axe and holder  x 1

Other requirements,

Emergency Aerial    x1
Bow Head Roller    x1
Bow Deck Vent [to Survivor's Quarters below deck]    x1    Model slipway x1
Fairleads    x6                                            Model slipway x6
Loudspeaker    x2
Windscreen Wiper Blades    x4
Wiper Boxes    x4
Searchlights    x2
Capstan    x1                                              Model slipway x1

Also, Speedline models

Stanchions, 14 and a Y boat.


Regards
adam

Title: Re: 1/12 Arun Build
Post by: morgsy on January 24, 2012, 09:11:21 am

Right time for an update, its been a while...

I have been playing around with ideas on making my own stanchions as they are pretty expensive from Speedline, this is what i have so far, just need to aquire a piller drill so i can drill the holes properly....any tips for drilling brass??
(http://s7.postimage.org/3kijxwk47/photo6.jpg) (http://postimage.org/image/3kijxwk47/)


Then here are a few pics of the boat additions, stairs, wood grating for the flying bridge, stearing wheel, various stickers..
(http://s15.postimage.org/cbfgxlj13/photo3.jpg) (http://postimage.org/image/cbfgxlj13/)

(http://s15.postimage.org/7qtainzbr/photo4.jpg) (http://postimage.org/image/7qtainzbr/)

(http://s15.postimage.org/gzvgss87r/photo5.jpg) (http://postimage.org/image/gzvgss87r/)

(http://s15.postimage.org/lbonvj4if/photo7.jpg) (http://postimage.org/image/lbonvj4if/)

(http://s15.postimage.org/648ob6cnr/photo8.jpg) (http://postimage.org/image/648ob6cnr/)

(http://s15.postimage.org/mta473993/photo9.jpg) (http://postimage.org/image/mta473993/)

Title: Re: 1/12 Arun Build
Post by: nhp651 on January 24, 2012, 11:48:42 am

seam to have lost pics here as well CJ.

Title: Re: 1/12 Arun Build
Post by: nhp651 on January 24, 2012, 01:36:16 pm

they have also come through now....me and electronics just don't mix I'm afraid.

sorry to have caused you alarm.
neil.

Title: Re: 1/12 Arun Build
Post by: morgsy on January 24, 2012, 01:40:15 pm

Just glad to see an interest in my post!

Title: Re: 1/12 Arun Build
Post by: batfish on January 24, 2012, 03:04:19 pm

Mate,

People are interested in your post, Look at how many have viewed it!!

Title: Re: 1/12 Arun Build
Post by: Bill D203 on January 24, 2012, 07:52:25 pm

It's looking good :-))

Title: Re: 1/12 Arun Build
Post by: morgsy on January 24, 2012, 10:18:46 pm

Slowly but surely, if I had the room at home for her she would be done much quicker!
Next house needs a garage/workshop...

Title: Re: 1/12 Arun Build
Post by: cjlowton on March 22, 2012, 01:10:43 pm

See the most recent pics...
 
(http://s17.postimage.org/j1irk500b/220312_2.jpg) (http://postimage.org/image/j1irk500b/)

(http://s17.postimage.org/7qg3vrt57/220312.jpg) (http://postimage.org/image/7qg3vrt57/)