Author Topic: Centurion Tank  (Read 9229 times)

Dave Winfield

  • Administrator
  • *****
  • Posts: 2645
  • Kudos 51
    • Dave's Card Creations
Re: Centurion Tank
« Reply #55 on: September 30, 2013, 07:53:32 PM »
yes...I am still working on this thing.
amongst other projects.

just finishing up the exhaust...
seems a shame to build the exhaust and then cover it over!
but, I guess the builder will know whats under there.

and, if you wanted to build this thing as some sort of diorama
with parts disassembled, or maybe undergoing repairs...then
you have something to work with.





DAVE WINFIELD - GO TO WWW.CUTANDFOLD.INFO FOR MY DESIGNS AND LOTSA FREE STUFF!

Dave Winfield

  • Administrator
  • *****
  • Posts: 2645
  • Kudos 51
    • Dave's Card Creations
Re: Centurion Tank
« Reply #56 on: October 11, 2013, 09:24:33 AM »
I think its time for another update!...

Getting ready for the upcoming IPMC near the end of October, so work on the Centurion has been sparse.
Originally I was hoping to have the model finished or near completion to display at the show, but I gave up
on that idea a long time ago! lol  Now, I am happy to keep puttering away whenever I get the chance.

Still working on the Turret and related components...so I want to get the Gun and Mantel sorted out before
I go any further. How the Mantel attaches...and swivels...on the turret is becoming a complicated project
but i think I have sorted it out.

I'm on my third redesign, but the outside of the mantel hasn't changed too much.



The original idea was to mount and pivot the mantel on a simple wooden dowel pin.
I still like this idea, however the single long pin blocks the hole for any extension of the Gun mounting.
At first I was concerned about this, until I realized my Former assembly already blocked that opening in
the front of the Turret.  So I will be working around that (rather than redesigning the entire Turret).



As I mentioned, I am now on redesign three, mainly because of pivoting issues with the entire part.
But I think I have finally come up with a better design. The supporting structure for the back of the Mantel
seems to work a lot better, and it fits into a much larger opening in the front of the Turret.  It actually
mimics the real Tank much better...but it still uses the single long pin swivel.



As I said, it requires a much larger cutout in the front of the Turret. (I have trimmed out the hole in
my existing Turret, rather than assembling a new Turret...but the actual opening would be a little cleaner.)




The mantel fits...and works...quite well.
I do have to tweak a couple of things, but I am proceeding with this design.

...

At the same time, I have been sorting out the Gun Barrels for this model.
I will be including both A and B type Barrels in each kit.
The A Barrel (84mm) is more accurate for this model, but I know many builders like the look of
the B Barrel (105mm with the Fume extractor canister) some later Mk.5 Centurions had.

I just had to see what the Barrel will look like, which is a good thing, because I have discovered
that I have no idea how to securely fit the barrel into the Mantel! Obviously I could just fill up
the hole with a ton of glue and let it set, but I think I need a more intelligent and secure mounting
method.

But since I don't want to throw out the parts I have designed so far... this is gonna take some thinking.
In the meantime, this is how it looks:





DAVE WINFIELD - GO TO WWW.CUTANDFOLD.INFO FOR MY DESIGNS AND LOTSA FREE STUFF!

Vermin King

  • Global Moderator
  • *****
  • Posts: 2526
  • Kudos 29
Re: Centurion Tank
« Reply #57 on: October 11, 2013, 09:53:05 AM »
OMG!  I do hope you will be taking this 'work in process' with you to the event.  I'm sure many folks there will be novices, just thinking designs just pop into being.  It will be a very good lesson in design and serious builders will be intrigued by what you have accomplished thus far
There are no strangers in this world ...
Only people I haven't embarrassed ... yet

Dave Winfield

  • Administrator
  • *****
  • Posts: 2645
  • Kudos 51
    • Dave's Card Creations
Re: Centurion Tank
« Reply #58 on: October 18, 2013, 06:55:41 PM »
yup...I will be taking the (unfinished) Centurion to next weeks IPMC!

...........
follow-up update
...I think I finally got the Gun and Mantel issue sorted out.
I may even have to build another Turret to test everything properly.
But for now, I am just modifying this one as I make design changes.

Two initial problems documented in my previous posts, were the the secure
attachment of the heavy barrel to the mantel
and the needed counter balance of the Gun barrel...

I still haven't perfected the attachment of the barrel, but I have added some length to
the barrel (where it fits into the mantel) and added a notch to fit over the swivel pin.



For the time being, this does seem sufficient, but I can see this being a part you would want
to attach near the end of the build...because it would be very easy to break the barrel away
from the mantel if you hit it or bent it accidentally.
So, I may move this part out of sequence in the instructions.



And I think I have solved the drooping gun issue with some internal Turret parts.
Solving part of the "what do I put inside the turret?" issue and counterbalancing the barrel at
the same time.
I have attached (to the backside of the mantel) the rest of the gun barrel and breech loader.



The main "box" of the loader parts is big enough to fill with some weight, to counterbalance the
long gun barrel. It will depend on how you construct the gun barrel of course...a hollow paper
tube won't weigh too much, but a wooden dowel inside (like mine) adds a fair amount of weight.
I added a dozen Pennies (about 24grams) into the main "box" from underneath. Just cut a slot
and pushed in a taped-up bundle of pennies.

The gun only swivels a few degrees up and down, so its not a big deal if you wanted to glue it
into one position, but my gun swivels nice now and will stay just about wherever I put it.



So thats it for now, I have to get back to packing up models and stuff, getting ready for my journey
to the IPMC next weekend.  If I have time, I think I will add some more Turret interior parts, but thats
about it for now.
DAVE WINFIELD - GO TO WWW.CUTANDFOLD.INFO FOR MY DESIGNS AND LOTSA FREE STUFF!

Dave Winfield

  • Administrator
  • *****
  • Posts: 2645
  • Kudos 51
    • Dave's Card Creations
Re: Centurion Tank
« Reply #59 on: November 22, 2013, 06:34:47 PM »
Before heading off to the IPMC back in October
I added a few more details to the Turret which I haven't posted.
Specifically some interior components.

I realized that the internal structure (formers) of the Turret would not allow for
a completely  accurate Turret interior. This wasn't a concern when I started.
And I knew the hatch openings would not allow complete viewing of the turret interior.
But after detailing the driver's compartment I realized this scale was going to force me
to add some thing more to the Turret's interior.

So, using a set of Centurion tank interior photos and adapting the best as I can to
fit within the constraints of the structural formers, I think I've added enough elements
to give you something to look at. *Keep in mind, the hatchways in the Turret will be
reduced even more when frames, hatches and other exterior elements are added. So
the visibility will be even more restricted.


All the parts are assembled into the turret...and then the swiveling Turret is fitted
to the main Hull.















DAVE WINFIELD - GO TO WWW.CUTANDFOLD.INFO FOR MY DESIGNS AND LOTSA FREE STUFF!

Tapcho

  • Global Moderator
  • *****
  • Posts: 579
  • Kudos 13
Re: Centurion Tank
« Reply #60 on: November 24, 2013, 07:44:48 AM »
Great additions Dave and well worth adding.

Tappi

milenio3

  • Verified Member
  • *
  • Posts: 479
  • Kudos 9
    • Paper Jerry Scale Models
Re: Centurion Tank
« Reply #61 on: November 25, 2013, 11:47:48 PM »
This project is going over the crowd, Dave!!

A m a z i n g !!
- Gerardo
facebook.com/paperjerry

jos

  • New Member
  • *
  • Posts: 6
  • Kudos 2
Re: Centurion Tank
« Reply #62 on: December 16, 2013, 01:58:04 AM »
Hoi Dave, great job,
Jos.

Dave Winfield

  • Administrator
  • *****
  • Posts: 2645
  • Kudos 51
    • Dave's Card Creations
Re: Centurion Tank
« Reply #63 on: December 16, 2013, 08:25:34 AM »
Centurion Tank is on a temporary hold.

I feel like I am a little burned out on the project.
After breaking for the IPMC in October, I had difficulty getting restarted.
I've tried to work on the Instruction pages (which is the first thing I must catch
up on) but that was just frustrating and so I stopped.

I decided to leave the tank alone until I found the motivation to get back into it.
I'll post as soon as work resumes.
Thanks for your continued support.

DAVE WINFIELD - GO TO WWW.CUTANDFOLD.INFO FOR MY DESIGNS AND LOTSA FREE STUFF!

Dave Winfield

  • Administrator
  • *****
  • Posts: 2645
  • Kudos 51
    • Dave's Card Creations
Re: Centurion Tank
« Reply #64 on: January 28, 2014, 08:56:34 AM »
well, heres the scoop...the skinny...the latest update...

as I have revealed, since the IPMC last October, I have had difficulty getting
back into the swing of paper modeling. And a lot of trouble getting back to
the Centurion Tank.

What with Xmas and real life issues, the modeling has taken a back seat.
I have tried a few smaller projects to help me get going again, and to keep
my mind off the Centurion...because it seems to just depress me. lol

My biggest issue is the Instruction pages...I was trying to keep up with them
as I was working on the design of the Tank last year, but I got way behind.
And I really didn't want to go any further until I was caught up with that.

Finally, a few days ago, I got started!...I have completed the main parts of
pages 7, 8 and 9 and I am now on to page 10. So this should allow me to
start designing more parts.




In fact, to complete the latest Instruction diagrams, I had to finish a couple of parts.

There has always been a question of exactly what version of Centurion I may offer.
I'm referring to the Mark.
The plan was a Mark 5...but not knowing much about these tanks, I was not up
on what the differences are.

Many people like, and want the big 105mm gun.
But the L7 gun change didn't happen until later Mark 5 tanks.

But the later Marks (5/1 and 5/2) also have other modifications like the
extra armour plate on the front Glacis...

So, I decided to offer everything in the same kit, regardless of the livery/nationality.
The kit will come with the Mk 5.0 'A' Barrell 84mm gun...the extra armour plate and related parts
for the Mark 5.1...and the 'B' Barrel 105mm gun for the Mark 5.2.

Extra Glacis armour plate shown here:



50 cal Coaxial MG for the Mark 5.0 (removed for the 'B' Barrel) shown here:

DAVE WINFIELD - GO TO WWW.CUTANDFOLD.INFO FOR MY DESIGNS AND LOTSA FREE STUFF!

Dave Winfield

  • Administrator
  • *****
  • Posts: 2645
  • Kudos 51
    • Dave's Card Creations
Re: Centurion Tank
« Reply #65 on: January 28, 2014, 09:10:49 AM »
So...continuing with Centurion work...woohoo...calm down...

Been sorting out these Storage boxes that go on the sides of the Turret
and create the distinctive Centurion Turret look we are all used to.

Was actually a bit tricky getting all the angles right.
And I am still a little off with the left side split boxes.

The Turret looks symmetrical, but its not.
And the left side has a Pistol Port.
Designing the one larger box was quite easy.
The two smaller boxes were a challenge.



I also experimented with opening versus non-opening containers.
And variations on the lid assemblies.
In the end I went with the simplest design, fixed lids, fewest parts.
An experienced modeller should have no problem making modifications
if they want functioning lids...although it will require adding an interior to
each container...or colouring the insides.

There are lots of metal wire handles all over the Turret and storage boxes.
They are used mainly (I think) as attachments for tie down straps.
The storage boxes have canvas straps to secure them properly.

Adding some straps wasn't hard, but all those metal loops are just too small
so I resorted to artwork on flat surfaces, and some 3D artwork on things
like the canvas straps.



DAVE WINFIELD - GO TO WWW.CUTANDFOLD.INFO FOR MY DESIGNS AND LOTSA FREE STUFF!