Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: [1] 2 3 4   Go Down

Author Topic: HMS Lundon  (Read 18500 times)

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
HMS Lundon
« on: August 22, 2012, 02:43:41 PM »

Hello hello,

I'm back!
Due to,well to be quite honest lots and lots of partying, sailing and living the life of a teenager, the new submarine havent been worked on at all..
Though many thoughts have been given to the new project, and I will shortly begin the building process.

Also, this autumn I will begin to study mechanics in school (The Faculty of Engineering at Lund University), which seem relevant to the construction of a submarine.

These are some old pictures but they show the first sketches and the overall idea.





Will soon be back with update regarding the building process.
I'm aiming to begin either this sunday or the next one with the making of the "discs"
Logged

Martin [Admin]

  • Administrator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 18,939
  • Location: Peterborough, UK
    • Model Boat Mayhem
Re: HMS Lundon
« Reply #1 on: August 22, 2012, 02:46:36 PM »


Due to,well to be quite honest lots and lots of partying, sailing and living the life of a teenager, the new submarine havent been worked on at all..
Though many thoughts have been given to the new project, and I will shortly begin the building process.


I must be getting old... I feel tired just reading that!  {-)
Logged
"This is my firm opinion, but what do I know?!"    -   Mayhem FaceBook Group!

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #2 on: August 22, 2012, 03:21:00 PM »


I must be getting old... I feel tired just reading that!  {-)


by joining this forum I've probably lowered the age average a bit.. hehe
fortunately there is no "right or wrong" age regarding the interest of building submarines, thats atleast what I've heard.
Though, its not the first I mention when on a date..
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #3 on: August 22, 2012, 05:09:43 PM »

Some more recent pictures.





I love paint :D
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #4 on: September 07, 2012, 07:00:29 PM »

Today I've actually had the opportunity to work on the submarine!
here are some pictures from the process.

I only have 4 more "discs" left to make.


the two stacks in front will become the pistons with 2 o-rings each

perfect!

finally, a proper saw
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #5 on: September 09, 2012, 08:02:03 PM »





Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #6 on: January 07, 2013, 07:11:49 PM »

Yoyoy, long time no see...

moveable endcap, waiting for 2 o-rings, When the o-rings arrive the fittings for them will be made.


bulkheads in the aft/rear




the inside of one of the two pistons, here with the "lock" to the rod.


Again, the "lock"


two pistons, patiently waiting for 2 o-rings each. When the o-rings arrive the fittings for them will be made.


end cap for the piston tanks with hose attachment. glued today. the center hole will be filled, somehow.






end cap for the rear,
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #7 on: January 21, 2013, 05:43:50 PM »




image ru


4 of them for the pistons and 2 for the detachable end cap.
The O-rings have arrived from Dichtomatik in Landskrona!




cheers
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #8 on: January 26, 2013, 07:48:02 PM »









glued some today. And yes they are squares, ugly squares to seal the holes that were made when making the "discs". I dont like the squares at all.. But since they are going to be inside the ballast tanks, which means noone will se them...



Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #9 on: January 29, 2013, 04:55:30 PM »



Mail!  :-)

Yes, they are big, and not in the right shape yet. But this was the cheapest way to do it.
In the hole a plug will be fitted, the plug will have a threaded M5 hole through it parallel with its own axis. This gear will then have a small threaded hole drilled in the hub showed in the picture to fit a grub screw which will hold the plug fixed together with the gear.
All this to make it roughly 5 times cheaper then any other price example I was given.


In two days I expect delivery from UPS with motors and other fun stuff  :-)


Cheers

Logged

unbuiltnautilus

  • Portsmouth Model Boat Display Team
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 2,979
  • Location: Portsmouth, England, third rock from the Sun....
Re: HMS Lundon
« Reply #10 on: January 29, 2013, 06:10:09 PM »



glued some today. And yes they are squares, ugly squares to seal the holes that were made when making the "discs". I dont like the squares at all.. But since they are going to be inside the ballast tanks, which means noone will se them...


You could have turned some nice, round discs as 'blanks', just having to fill the holes in the middle..... :embarrassed:

Good job so far, looking forward to the next installment. :-))
Logged
Listen politely, nod approvingly, then do what you want, works for me!

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #11 on: January 29, 2013, 06:13:43 PM »


You could have turned some nice, round discs as 'blanks', just having to fill the holes in the middle..... :embarrassed:

Good job so far, looking forward to the next installment. :-))


Well I could, but unfortunately I dont have the tools to make such discs. All my discs end up with a hole in the middle..
Maybe Im a bit lazy at the moment too... :-)

Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #12 on: January 31, 2013, 11:29:04 AM »



Had a visitor from UPS today  :-)

I knew that the small gears would not be as long as the big ones, and yes I did actually do the math and compare but unfortunately everything don't end up as planned in reality.
Will "extend" the axis from the motors and add some nice bearings to keep them in place.


Cheers :-)
Logged

derekwarner

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 7,964
  • Location: Wollongong Australia
Re: HMS Lundon
« Reply #13 on: January 31, 2013, 12:00:25 PM »

Sebastian..........without appearing negative......... :((  the visual sizing of the external gearing as shown + the bearing supports which will be horrifically over sized  <*<
We also see the current MFA enclosed motor/gearbox assemby as 50:1....could you not consider an alternate enclosed MFA assembly ratio of 150:1 ....or the like?......Derek
Logged
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #14 on: January 31, 2013, 01:04:43 PM »

Sebastian..........without appearing negative......... :((  the visual sizing of the external gearing as shown + the bearing supports which will be horrifically over sized  <*<
We also see the current MFA enclosed motor/gearbox assemby as 50:1....could you not consider an alternate enclosed MFA assembly ratio of 150:1 ....or the like?......Derek

Oh,
Dont know if you've read previous post about how the big gear will be fitted to the m5 rod.
But i believe that even though the big gear is just that, big, it itself wont be needing any bearings. Only supports to steer the rod and vertical supports to make the plug not moving in the horisontal axis.
The small gear will be fitted to an axis which is extended from the motor.
Its this axis that will need bearings.
The motor produces 300rpm~
The gear ratio is 50:1 with the small and big gears.
Making the speed of the big gear to be 60rpm~.

Will make a blueprint this evening.
Cheers
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #15 on: January 31, 2013, 08:12:56 PM »


Made a quick sketch without measurements.


The big blue is the big gear.
The light green is the plug that will be fitted with a grub screw (black) in the hole of the big gear.
The plug will also be threaded in the inside hole to fit on the M5 rod (red).
Dark green is the smaller gear, fitted with the grub screw on the axis connected to the engine.
The yellow parts is just to help the gear in place.
Dark blue are bearings to support the engine axis.


Cheers  :-)
Logged

essex2visuvesi

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 6,146
  • Location: Finland, England, Finland!
Re: HMS Lundon
« Reply #16 on: January 31, 2013, 10:55:59 PM »

whats the diameter of the shaft with the green gear? I have a load of ballraces from RC cars so might have something of a suitable size
Logged
One By One The Penguins Steal My Sanity
Proud member of the OAM  (Order of the Armchair Modeller)
Junior member of the OGG  (Order of the Grumpy Git)

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #17 on: February 01, 2013, 06:37:32 AM »

whats the diameter of the shaft with the green gear? I have a load of ballraces from RC cars so might have something of a suitable size
It's a 6mm shaft. I've already ordered bearings and lock rings...  {:-{
Thank you for the thought though! :-)

Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #18 on: February 02, 2013, 10:59:51 PM »



What is hiding in the tube?  O0

Oh look there, (the camera somehow choose to focus on the shelf...)

Testing the setup and planing where all holes will go for water outlet hoses, electrical wiring and so on..

Where the gear will be. Not yet ready though.. Hopefully it will be ready on monday.


The pistons. not glued yet, but soon they will be.


Cheers  :-)
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #19 on: February 04, 2013, 03:23:12 PM »

After a few hours in the schools workshop with Mattias:







Unfortunately, I made a massive rookie mistake........ %%
The piston rod is M6, none part is M5, have no idea where I got the idea that it would be M5.
Damn it, so tomorrow morning we're at it again.
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #20 on: March 07, 2013, 10:07:42 PM »



Strengthening bulkhead in the aft for the rudders. 



Havent had much work done lately. Mostly due to quite a lot in school, especially Mechanics of materials....
Mid-term finals the next week.


But soon I will be able to focus a lot more on the submarine, finish the ballast tanks, try the WTC seals etc..
Cheers for now
Logged

eddiesolo

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,201
  • Shiver me timbers...I've spilt me glue!
  • Location: West Yorkshire UK
Re: HMS Lundon
« Reply #21 on: March 07, 2013, 10:59:29 PM »

I know naff all about working model subs, can make a model one...engineer stuff like this or even pre-bought stuff...no chance. That is why I love reading threads like this, amazing stuff, keep going it is great stuff!
Si:)
Logged
My models are not nice, clean and ship-shape. They be mucky, grubby, rusty and smelly.

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #22 on: March 07, 2013, 11:05:39 PM »

I know naff all about working model subs, can make a model one...engineer stuff like this or even pre-bought stuff...no chance. That is why I love reading threads like this, amazing stuff, keep going it is great stuff!
Si:)
Thank you, Its nice to be appreciated.  :-)
Forgot to mention. the white stuff is just left over toilet paper from gluing.
Logged

SwedishProjectBuilder

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 74
  • Location: Sweden - Lund
Re: HMS Lundon
« Reply #23 on: March 16, 2013, 08:30:56 PM »







Not sure yet if the motors will be directly linked to the small gear...

Or as in this picture, connected with a rod that will be supported by bearings.
The first version (directly connected) is more space saving and will probably be the solution.

The pipe will not be as long as in the pictures, obviously, and the bulkheads will be aligned.

Rods were added to support and give the aft strength.

Originally the thought was to give the 4 long rods the same fitting-solution as the two new ones have. (built in)
Unfortunately I forgot that and just now realized it.. Maybe I will remake the end plug in the future.



Cheers for now! Hoping to get a lot more done the upcoming week
Logged

Lash151

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,169
  • Location: King's Lynn, Norfolk
Re: HMS Lundon
« Reply #24 on: March 17, 2013, 01:07:52 AM »

This is all looking really good... I am following your thread with great interest... keep up the good work!
Lee
Logged
Pages: [1] 2 3 4   Go Up