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Churchill Mk III build

Posted: Thu Feb 24, 2022 2:02 pm
by AlwynTurner
I am currently considering a Churchill build for later in the year and have started doing some prep work.
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One of the big problems with building a Churchill is the lack of appropriate tracks, so I thought I'd have a go at making some. They are quite big chunky things with no centre tab for alignment, the tracks are aligned using small wheels that sit outside the edge of the track
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This is where I am up to so far
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Just printing some off to check if they will work
Alwyn :thumbup: :wave:

Re: Possible Churchill build

Posted: Thu Feb 24, 2022 2:49 pm
by AlwynTurner
Success! :D :thumbup: :thumbup:
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All I need now is a sprocket and I'm on my way!

oh and the rest of the tank.......... :haha: :crazy:

Alwyn :thumbup: :wave:

Re: Possible Churchill build

Posted: Thu Feb 24, 2022 3:19 pm
by lmcq11
Hi,
If you are planning to create an early Churchill Mk 1 as shown in the graph, you might want to recreate the early Churchill type tracks, different than the late type.
Churchill early tracks
Churchill early tracks
Capture20.JPG (17.26 KiB) Viewed 5592 times

Re: Possible Churchill build

Posted: Thu Feb 24, 2022 3:45 pm
by AlwynTurner
I'm afraid I'm going to chicken out and probably build a later version with the straightforward tracks, the early tracks look kinda complex. :crazy: :haha:

Alwyn :thumbup: :wave:

Re: Possible Churchill build

Posted: Fri Feb 25, 2022 9:02 am
by HERMAN BIX
And make a few lengths for Sherman builders that want to up-armour their 'Ronsons' !!

Re: Possible Churchill build

Posted: Fri Feb 25, 2022 9:34 am
by Kaczor
Check this track link (I'm not sure about scale- need to be checked)
https://www.thingiverse.com/thing:5262376
And make a few lengths for Sherman builders that want to up-armour their 'Ronsons' !!
Yes!

Re: Possible Churchill build

Posted: Fri Feb 25, 2022 2:34 pm
by AlwynTurner
Thanks Kaczor for the very useful suggestions, I have modelled my track link and sprocket on the Mk 2 Churchill (it was easier than Mk 1),
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It has taken quite a few iterations of design to get the track link right. There are two sproken teeth to a link, and that meant the central round part of the link had to be raised so that the link would lie flat on the sprocket, what a lot of fun! :crazy: :/ :haha:
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Note the step area on the link so that the suspension wheel has something to locate on.]
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The track links are very robust, after printing the link holes have to be cleaned with a 0.8mm drill, and the links connected with dressmakers pins - these are incredibly strong and don't appear to move once set although I will probably add just a drop of superglue to the head to make sure.

Anyone wanting the stls for the track, sprocket, and idler wheel should pm me with an email address for me to send to but please no manufacturing for retail, I would be most disappointed if anyone did that.

Alwyn :thumbup: :wave:

Re: Possible Churchill build

Posted: Fri Feb 25, 2022 2:37 pm
by Kaczor

Re: Possible Churchill build

Posted: Fri Feb 25, 2022 8:07 pm
by AlwynTurner
The more I work on this the more I think I'll take a crack at the Churchill. I had a dinky toy of the churchill tank on a mighty antar tank transporter, so I would really like to do this tank.
The sprocket is done and is fine
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The tracks fit nice and tightly to the sprocket, so all that's needed now is the idler/tensioner wheel which is just a modified drive sprocket, and the suspension system. :haha: :/ 8O

Alwyn :thumbup: :wave:

Re: Possible Churchill build

Posted: Fri Feb 25, 2022 8:14 pm
by Ecam
I've only been around a few 3D printers....

I can only imagen the time it would take to print a set of tracks!