7TP suspensions

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Chrysanthos Kanellopoulos

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Nov 10, 2009, 4:09:28 AM11/10/09
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That's my latest.  I cut corners (again!) and built suspension blocks from square steel tubes and U shaped lengths upside down.  It involves a total of 32 small ground wheels, which is good in a way.  They are closely spaced and they cannot derail the tracks.  They remotely resemble Vickers' / 7TPs suspensions. They work though. They don;t involve springs and perhaps they cannot be called active suspensions? Passive suspensions? they simply adopt to the ground's contours.
Enjoy!
 
Chrys
 
susp up2.jpg
susp up13.jpg
susp up6.jpg
susp up8.jpg
susp up12.jpg
susp up16.jpg
susp up15.jpg
susp up7.jpg
susp up4.jpg
susp up11.jpg

Clark Ward Jr

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Nov 10, 2009, 7:47:36 AM11/10/09
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I like it!
--
Clark in Georgia

?

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Nov 10, 2009, 2:01:16 PM11/10/09
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Thats a cool suspension. Looks sturdy. Where aro you located? your
coke cans look differern than ours:)

Ed

Stephen Cobb

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Nov 10, 2009, 3:16:44 PM11/10/09
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that is one of those small coke cans like a 6oz. I think....
but anyways back to the tank... I hope you don't mind if I steal your
idea and use it before you have that copyrighted?
> > Clark in Georgia- Hide quoted text -
>
> - Show quoted text -

KANELLOPOULOS CHRISANTHOS

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Nov 10, 2009, 3:21:51 PM11/10/09
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You people are fast . These are the small, 150 ml cans. I was hoping to reveal it later today, in a message titled: "how to convert from 1:8th to 1:6th" (it's called cheat).
Chrys

Odyssey...@aol.com

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Nov 10, 2009, 5:33:55 PM11/10/09
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interesting indeed!
 
how big is that square tubing?
 

Chrysanthos Kanellopoulos

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Nov 11, 2009, 1:15:27 AM11/11/09
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The section is 36 and 32 mms square and the upper parts with the lower blocks are bolted together. At some point , when I find tubing with the proper section (40 mms square) for the upper parts, I will make them so that the lower parts swing individually about the upper parts, that also swing, as shown in my attached pictures.
Oh yeah! The real thing is the second attachment. YTou can tell the simplifications.  The color is kind of light for a Soviet tank but it looks perfect in pics and videos!  It is sprayed with Manila Green from the Montana spray series. It is close to French artillery Green. Can be used for the very particular Israeli khaki too for those who are puzzled with this color. (Soviet green was much more plain and a little darker. with a dark green my models look almost black at a distance )
 
One thing Ed: This kind of  suspension swings way more than arms with springs do, especially if you can have - and engage - a sagging track. see secs 34 - 37 in:
especially the last ground wheel in sec 37-38.
 
and secs 42 - 44 in:
 
these suspensions are also built like that
 
only they are concealed behind those large wheels.
 
Also, dummy in :
 
 
I was inspired from this photo:
that resulted in my first suspended tank:
 
Thereafter I am happy with these passive suspensions, that do not involve springs.  There is just no space for them in my little tanks.
Friction driven tracks have to be tensioned to be engaged and driven properly, and as a reuslt the wheels do not travel as much.  One thing though: In my non-active suspensions there is no elastic movement in the second stage of the suspension. Note as the tank lands. No bounces.
The true spring is the track itself in a way.
 
 
Chrys
7TP prt screen.jpg
A72606.jpg
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