Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Lifeboats => Topic started by: SE on March 05, 2014, 03:27:00 pm
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Yet another Speedline Tamar
November 2013 I received a large packet from Adrian Gosling, and somewhat frightened over the prospect of a first time building in perspex I started building in January. I have been impressed by the attention to detail and precision of the perspex, percy and brass parts. Now the electronics and exterior are finished, and I can’t wait till sailing season here in the Copenhagen area begins. I still have time to finish the interior! It is named “John D. Spicer”, RNLI No. 16-24, stationed at Porthinllaen. It is fitted with two brushless 340 kv running at 12-24 volt. The transom, mast and antennae are manoeuvred by hydraulic. The radar is driven by a 6 mm planetary geared motor. The windscreen wipers are not true to scale, but they work. I want to thank all the enthusiasts at the Model Boat Mayhem for many good advices and hints. I also want to thank Mr. John Falvey for his kind reception at the Barrow Lifeboat station and the many good pictures of the Tamar class “Grace Dixon”.
I place some pictures here from the building and link to a video on Youtube:
http://www.youtube.com/watch?v=JYY0PmnaTKs&feature=youtube_gdata
http://www.youtube.com/watch?v=gtdC9D7QuYc&feature=youtube_gdata
http://www.youtube.com/watch?v=VTqXEUIBCIE&feature=youtube_gdata
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That's fantastic workmanship. I'm envious of your mast, ariel, transom door and windscreen wipers; I've never been good with electrics. Lovely to see thank you.
Chris
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she looks good and another welsh boat :-)) as mine is 16-25 RNLB Kiwi based at moelfre
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Nice job and a very quick build especially with all those working bits. Could you possibly share with us how you got it all to work.
Regards
Rich
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Thank you for all the nice comments, they make my efforts worthwhile :-) !
As mentioned, I used hydaulics for the mast, antenna and transom, below is a picture of the installed hydraulic pump and servos, behind the motors. I am not sure I would choose the hydraulic solution again, mostly because of the messy oil. In order not to disconnect the hydrarulic tubes each time I want to acces to the interior, a cradle for the deckhouse is mounted beside the boat. The deck above the Y-boat is opened by a linear actuator. In the picture below, the motor in the middle turns two threaded rods, of whic one is left, the other right threaded. Thus the actuators goes in opposite directions when te motor is running.Next is a picture showing the simple solution for the windscreen wipers. A small, 3 v motor doing 36 rpm push/pull the bowden cable inside a brasstube. On the cable, at the right spot under the window frame, a rod is soldered, moving the wipers. Finally I can mention, that the top of capstan on the rear deck functions as main-switch, turning a 3-poles rotating switch located beneath deck. :-))
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Lovely, lovely,lovely.
You have some ingenious solutions to some
frequently mulled over problems.
I think a few members will be copying
your ideas. %) %) %)
Ned
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Very nice indeed.Well done !
Mick F
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SE...as others have stated....brilliant :-)) ....I have been fortunate to have had my entire working life involved with industrial hydraulics systems for the steel industry, large scale marine & naval applications.....but have never witnessed micro hydraulic fluid systems such as you display
Again like others ...I would be very interested to understand more of the components you have used O0 .................Derek
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Thats a lot good ,I to worked in the heavy plant game as a fitter for amost of my working life and would like to know more about the micro hydraulics never seen this before.
Very well engineered
David
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Excellent stuff. I will have to try to get the wipers working when I eventually get around to building mine. Thanks for sharing this
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Working hydraulics!
A wonderful model all round.
Can we have a look at the rams?
:-))
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Hi Flundle,
some pictures of the hydraulic rams, one of the two for the transom and one for the mast. The arial cylinder is inside the deckhouse. The illuminated screens may be sen through the window, as the interior may be seen through the open door. Also, a picture of the ventilator in the air vent for the motor room. I had to modify the windscreen wipers to have them look closer to scale. Link: https://www.youtube.com/watch?v=dDjEQk-D8No
Next step is maiden voyage!
Svend Erik
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And here are the pictures!
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:-))
FAN......TAS.....TIC !
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Well, what can you say?!!
Very well done, a super project. Have a good launch day and don't forget we,d love to see more of this fantastic model.
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Simply stunning! well done on such a neat job to what is a really nice kit. Keep the pictures coming.
Really interest in the hydrolicks and how much you made and how much was brought and if so who from.
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Hi yachty (and others),
the hydraulic cylinders came from two sources: www.morpower.com and www.wtbcar.com. You can find smaller but then very expensive!
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just been watching the videos this really is a superb model. excellent work
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Wow -inspired me to build a Severn!
Can you tell me where you got rotating blue flashing light from.
Thanks in advance
Jonathan
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Wow -inspired me to build a Severn!
Can you tell me where you got rotating blue flashing light from.
Thanks in advance
Jonathan
Hi Jonathan,
The blue flash can be found at www.pistenking.com - expensive, but very good!
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Hi try this firm https://astecmodels.co.uk/catalog/product_info.php?cPath=137_140&products_id=1698&osCsid=aee5cc72da38a41fe01
John
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Hi try this firm https://astecmodels.co.uk/catalog/product_info.php?cPath=137_140&products_id=1698&osCsid=aee5cc72da38a41fe01 (https://astecmodels.co.uk/catalog/product_info.php?cPath=137_140&products_id=1698&osCsid=aee5cc72da38a41fe01)
John
Hi John,
Yes, much cheaper, but very difficult to hide the wires in the mast.
Svend Erik
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Hi Jonathan,
The blue flash can be found at www.pistenking.com (http://www.pistenking.com) - expensive, but very good!
Thank you for info -not sure pisten king will ship to uk - looks like they only ship to Germany/Austria/Switzerland - did you have to make special arrangements to purchase?
regards
Jonathan
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Thank you for info -not sure pisten king will ship to uk - looks like they only ship to Germany/Austria/Switzerland - did you have to make special arrangements to purchase?
regards
Jonathan
Hi Jonathan,
I had no problems ordering from Germany, there was no special arrangements.
Regards
Svend Erik
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Hello Erik,
Just arrived on the forum, I checked this post and I'm really impressed with your build.
I'm starting a Tamar speedily also, I hope to reach your Level !!!!
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Hello Erik,
Just arrived on the forum, I checked this post and I'm really impressed with your build.
I'm starting a Tamar speedily also, I hope to reach your Level !!!!
Hi Olav,
I almost envy you of the prospect to build the Tamar, it was great fun - but also a challenge! Let me know, if there is anything, I can help you with!
Good luck
Svend Erik
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Hi Olav.
Happy Birthday! I'll be watching with interest how you get on. I have almost finished a new build of a Tamar so can provide a lot of help should you need it. Glad to post via this site so all can see whats happening.
Svend has done a great job, like the hydraulics but can help with the more traditional ways of ram ops.
Adrian
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Hello Erik and Adrian,
Thank you for offering help, I'm sure I will need it !!!!!
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Hello Erik it's chris I messaged you on YouTube and I'm still interested in buying your lifeboat would you take 2000 or are you sticking with 2500
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Hello Eric.
If your selling the Tamar, I could give it a very good home!
Let me know.
Adrian Gosling
Speedline Models
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Finally I succeeded in taking the Tamar to the water! I have had two serious problems: first, the coupling between the E-max 40 and the propeller shaft could not handle the force delivered by the powerful brushless. It now seems to hod after I used gaffa-tape in several layers around the rubber sleeve of the coupling. The second wad a leak in the tunnel of the bow-thruster. How it arised I don't know.
Great fun to sail, very manoeuvrable and fast (too fast for the scale!).
The video is not very good, I was alone at the lake. It may be seen here:https://youtu.be/8yp2c5MW45E
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Svend,
This is the first time I have visited your build and I have to say it's WONDERFUL! The video on the 'home' water with the lights, stern opening doors, radar, windscreen wipers, bow-thruster and telecomms all operating. It demonstrates the skills you have put into this model and hopefully, now, the fun you will have operating her! Well done, a real inspiration to all lifeboat enthusiasts around the world. It demonstrates what can be achieved at 1/12th scale and with such a fine kit as the base.
Kim - Canterbury Coxswain
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the coupling between the E-max 40 and the propeller shaft could not handle the force delivered by the powerful brushless.
You need to programme the ESC and turn down the "start mode (punch)" to a setting of 2, or 3. This reduces the torque during the first moments after power on and takes the strain off the coupling.
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Thank for your advice!
I tried that to lowest possible level - not enough though! The ESC's are Alien 180 A, programmable.However, I believe the problem is solved.
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Hi all, I found I needed a couple of figures on my Tamar. I have printed on a 3D printer some crew members in adequate positions. Printed in polyethylen (PET-G) the weight is < 50 grams, painted and rigged.
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Hello Erik,
Magnificent skill and craftsmanship in your Tamar, I just wish we could have seen more of your building work along the way!
I'm building a Tamar as well, the 1/16 version from Model Slipway and I have been doing a lot of research on how to power it.
I went through all the options of brushless motors having enjoyed their power and great efficiency in R/C aircraft, no doubt there are major benefits but I eventually went with 2 large brushed motors (MFA 800's).
Your issue with the brushless 'punch' at startup was what I wanted to avoid, it can be reduced to a beautiful soft start but the motor and speed control must be of the 'sensored' type - the R/C 4x4 guys are all using sensored setups and if you look at videos of them comparing sensored/sensorless the difference is phenomenal..!
Only problem then is the sensored motors and the ESC cost quite a bit more, and you've still got the inherent issue of really wanting a reduction gearbox to turn that characteristic high RPM output into nice scale torque.
Anyhoo that's my 5 cents worth (from Australia), I'd be interested to see how you're going with yours. :)
Cheers, Paul
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Hi all, I found I needed a couple of figures on my Tamar. I have printed on a 3D printer some crew members in adequate positions. Printed in polyethylen (PET-G) the weight is < 50 grams, painted and rigged.
Hi SE,
Where did you get the stl files for the extra men from please?
Dave
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Hi Dave,
I made the figures in Blender (a 3D program, free). Files are too large to post or email. If you are interested, I can place them in Dropbox for you. They are printed on my wonderful Trinus 3D printer, but I had to print them in two halves.
Best regards
Svend Erik
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Hi Svend,
Yes please, that would be great if you could do that for me.
Regards Dave.
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OK, then I need your e-mail address!
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PM sent
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Member's emails can be found by clicking either their name or the little envelope underneath
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Thank you for info, however it does not apply in this case, : no e-mail.
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?
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?
As a God Amongst Men, you can see everybody’s email addresses.
As mere mortals, we can only see the email addresses of those who choose to show them. Mr. Elderly Flatulence has hidden his, as have I.
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I stand corrected.
Thank you for the information. :-))
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hoi Svend ..
a fantastic model you conjured there .. !!!!!!!!!! :-)) :-)) :-)) :-)) :-)) :-))
soon I start with the construction of 1/12 Tamar .. and looking through the kit I noticed that there are no wipers with it..
are you with the extra window kit?
Holger
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Good Evening All
Subject speedline Tamar
Have posted question before hope i can get back on to model haven't touched it for three months due to frustration
Speedline provide two infill panels for rear walls of wheelhouse walls with a sloping flange when the infills are fitted it makes the walls about 4mm thick the flange on f glass structure is about 10mm wide i cant believe they are reduced to 4mm wide if so why , i would be gratefull if some body could provide the finished wall thickness
please , i was on the broads this year and hoped to go to cromer did not happen
Hope any one can help could be shelved for good
Hope all are well
regards howard spary
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Why? Because thats how they are.
Should have gone to Cromer or just look up this thread at some wonderful phots!
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Hi
Thanks for your reply
Unfortunately the cromer life boat was/is not open to visitors at this time. i have looked at photos and u tube videos all i require is some one to confirm that the overhanging flange is reduced back to the infills panels
Also the measurement from the rear storage wall back to end of wheelhouse structure
I apologise if i seem a bit thick but once there in they would be a job to alter
Once again thanks for your reply
regards
H W Spary
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You need to sand the inside of the fibregalss section until it is 2mm thick then glue the 2mm Perspex piece to it. 4mm in total.
The forward end of the 2mm Perspex piece is shaped to line up with the wall.
Have no fear its correct.