1/6 scale Universal Carrier suspension and road wheels

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Postby AlwynTurner » Tue Feb 26, 2019 12:56 pm

I decided to make a start on the 1/6 scale Universal Carrier before I went on my hols and here's the wheel design
Image
and a very worn real wheel
Image

I'll hopefully get a bit of work done before I go away

Alwyn :thumbup: :wave:
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Postby Max-U52 » Tue Feb 26, 2019 1:52 pm

Very good start, Alwyn. I've been waiting for someone to design one of these in 1/6 scale. Will you print your own tracks, and if not what tracks do you have in mind?

I know it's just a tiny little monkey but the Bren carrier has always been one of my favorite tracked vehicles. I'll be watching closely with great interest. @)
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Postby AlwynTurner » Tue Feb 26, 2019 2:06 pm

Hi, the wheels and suspension are being designed to use 1/16 scale Jagdpanther tracks which have a profile which is roughly correct. I will need to design a sprocket to suit which won't be exactly to the correct scale - the holes for the sprocket lie outside the track spurs, but that's a compromise that has to be made in order to use stock tracks.

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Postby Max-U52 » Tue Feb 26, 2019 4:32 pm

And I just happen to have a spare set of tracks for that. Isn't that convenient? @) 8) :haha:
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Postby AlwynTurner » Tue Feb 26, 2019 4:44 pm

Hmmmm... I think you'll need a second set at least because each track will be approx 1200mm long

Image

It's a big beast......
and the problem I have is the guy who did the blueprint I'm working from was an idiot who managed to get spindles going through tyres! Some redesign has been necessary...... :crazy: 8O :haha:

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Postby HERMAN BIX » Tue Feb 26, 2019 9:00 pm

I have two sets of plastic tracks!
I will have a look later and we can work out how many runs you will need to get your 1200mm per side
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Postby AlwynTurner » Tue Feb 26, 2019 9:18 pm

That would be great Herman, thanks. :clap: :thumbup:

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Postby HERMAN BIX » Wed Feb 27, 2019 11:42 am

Turns out I have 4 sets (8 runs)of tracks. Each run is 830mm when laid out flat.
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Postby AlwynTurner » Wed Feb 27, 2019 1:00 pm

Fantastic Herman, many thanks. That tells me I need 2 sets for the U C. :clap: :thumbup:

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Postby Son of a gun-ner » Wed Feb 27, 2019 3:56 pm

Just found this site featuring a scratch built 6th Australian Bren Carrier. Although the site contradicts itself mentioning 16th, it is 6th.

AMI Gallery 1/6 scale Bren Gun Carrier by John Loughman
http://www.aussiemodeller.com.au/pages/ ... engun.html
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Postby AlwynTurner » Wed Feb 27, 2019 4:29 pm

Thanks for the pointer to the build. The builder did a fairly creditable job using styrene and it's ok....... I hope mine is better as would be expected with the advantage of 3d printing.

Here's the start
Image
Image

These are just the prototype prints, the real wheels will have 5x14x5 bearings front and back. They are ordered and will arrive next week. I'm probably over-engineering this but I don't know what the finished weight will be and I definitely don't want suspension issues when driving. The real thing could do 40mph over rough ground and there are lots of pictures of them leaving the ground :crazy:

Anyway onwards and upwards
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Postby midlife306 » Thu Feb 28, 2019 1:02 pm

I’m well excited about this build Alwyn
Cheers
Wayne


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Postby AlwynTurner » Fri Mar 01, 2019 8:58 am

Progress on the suspension
Image
Image
here's the real thing
Image

Just the rear suspension mounting to do

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Postby AlwynTurner » Fri Mar 01, 2019 3:21 pm

That's the rear suspension finished

Image
Image
Image

Working in 1/6 scale really feels like heavy engineering 8O :crazy: :haha:

Everything has to be super strong, working with M5 nuts and bolts, it's really weird but kind of satisfying to create these huge chunky pieces. I am busy cutting the plywood for the chassis and I still can't get it into my head I'm building a tank - with Carpentry already. 8O

Anyway I can't go much further until I get the tracks and sprocket as the sprocket design is going to be a lulu!

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Postby Max-U52 » Fri Mar 01, 2019 4:49 pm

Alwyn, if you post the STL files or offer them for sale I will definitely build one of these. In fact, I'm searching eBay right now for suitable 12 inch British figures to man it for me. @)
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Postby HERMAN BIX » Fri Mar 01, 2019 11:27 pm

I will get them away ASAP mate. I don’t want to hold up production!!
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Postby sassgrunt » Fri Mar 01, 2019 11:51 pm

And, now that you have Herman salivating over the project; maybe you should point out to him that your suspension units would be a huge step forward in building a Maultier in 1/6 scale too!

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Postby HERMAN BIX » Sat Mar 02, 2019 12:49 am

I have been saving up some praise & thanks for you too Mr Sass!!
For the right time !!

A maultier that size !!!!???
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Postby AlwynTurner » Sat Mar 02, 2019 2:27 pm

Well, I'm bemused, amazed, and a little awed.

Image

Anyone giving this a casual glance could be forgiven for thinking I had given up on rc tanks and vehicles and decided to build boats instead 8O :crazy: :haha:

It isn't a model aircraft carrier or landing craft, it is in fact the lower hull of the 1/6 scale Universal or Bren Carrier. IT'S HUGE!

Anyway it's the prototype for one. I'm not 100% sold on using ply and may revert to styrene. This is 3mm ply, and I think 4mm of good old styrene sheet would probably provide a stiffer and stronger solution but this works as a prototype.

Now I'm glad I over-engineered that suspension.

Alwyn :thumbup: :wave:
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Postby Son of a gun-ner » Sat Mar 02, 2019 7:15 pm

Wow Alwyn, that does look huge, you sure it's only 6th scale lol.
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