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RC Tanks Australia Forum :: View topic - Polish Leopard 2A4 1:16 - scratchbuilt
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Polish Leopard 2A4 1:16 - scratchbuilt
http://www.rctanksaustralia.com/forum/viewtopic.php?f=46&t=426		 Page 1 of 2
Author:  vanhasen [ Wed Aug 29, 2012 5:15 am ]
Post subject:  Polish Leopard 2A4 1:16 - scratchbuilt
Hello everybody,
I'd like to share with you a little project I started a few (hmm.. six including R&D phase :lol: ) months ago - scratchbuilt radio controlled Leopard 2A4 in 1:16 scale.
The assumptions for my build are as follows:

2mm thick aluminium body with resin details,
polish markings
elmod control module with Turnigy 9x
stabilised gun
fully regulated suspension,
relatively high water resistance
very high mud resistance ;)
camera

I guess I won't be able to meet all these targets, but even 80% will be good enough for a RC rookie.
This is my first RC model (before I was building paper tanks...) so I had to start with basics - learn how this all electronic stuff work. Second step was a CAD project which allowed me to cut most of aluminium parts on waterjet machine. This way I created the set of parts which was glued together with epoxy glue.

On the photos below you can see the current status of my Leo. Feel free to any questions.
Author:  slowstartgjh [ Thu Aug 30, 2012 5:37 am ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
If this is the basic work of a Rookie I would love to see the work of an Expert.
It looks better than the Tamiya Kit, Well done. Looking forward to more photo's and video's
Cheers
Graham
Author:  vanhasen [ Thu Sep 06, 2012 6:19 am ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
Hi,
A little update - I made a test and checked the suspension setup. It doesn't look bad. Some fine-tuning should fix the level after final assembly.
In the meanwhile I also flashed Turnigy 9x. Thank you :)
Author:  Gra [ Tue Sep 11, 2012 9:28 am ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
great stuff vanhasen 8-) 8-)

you should be able to market those hulls


cheers
gra :)
Author:  vanhasen [ Mon Sep 17, 2012 5:51 pm ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
Hi,
This week I was able to run the first fileld tests. Below a short (and poor quality...sory) clip showing the performance of the chasis:





I also wanted to check the strenght of the motors, but since I had no proper hill for this kind of test I had to borrow one of my wife's tools :)



My model's weight at this point is about 6kg.
Author:  vanhasen [ Sun Jan 20, 2013 7:13 am ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
Hello everybody,
After a long pause I'm back - in fact I got back from a 3-month business trip before the Christmas, but well - there was nothing to report after such a long absence :(
Now I can show you what I was able do build despite the multidude of other task waiting for me at home.
I added some details to the turret and painted (primed) it to check if everything goes fine. Of course it doesn't - so I'll have to fix a few fake welds :)

















My travel was for me also an opportunity to "upgreade" this project a little. There are several items in my drawer which will for sure make it more interesting - FPV equipment and automatic pilot (Ardupilot) :)
If I'm lucky (and smart) enough I'll have a real HUD...
Author:  vanhasen [ Wed May 08, 2013 2:25 am ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
Small test of turret rotation mechanism:
https://www.youtube.com/watch?v=NZjta-_pIaE
It seems like my little trick works - barrel do not hit the rear deck :)

I also managed to install FPV with some extras, here is the result:


And this is how the turret interior looks like at the moment:
Author:  B.A.D.A.S.S.Force [ Wed May 08, 2013 2:48 am ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
Though I'm into the old WWII tanks myself, & I actually don't care for modern tanks much at all, I can't help but admire your extremely fine craftsmanship on this tank ... the results of all your hard work & talent has created a real beauty, something to make one proud indeed!!! Thanks for sharing.

~ Craig ~
Author:  vanhasen [ Sat Sep 06, 2014 4:18 pm ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
Hi,
It has been long time since I last did any progress here :( The project is frozen - generally due to insufficient power of motors which I used and inadequate workshop to replace them with a proper brushless pair (and resulting motivation crysis, which I had to overcome).

Brushed motors with the gear ratio I used are capable to easly achieve correct ahead/reverse speed, but one is unable to make the 8kg model turn :( Turning radius in rough terrain is like 2 meters :(

Meanwhile I decided to fix the core probem so instead of struggling to "revive" this model I was working to improve my workshop - I found some free space, learned a lot, built my own cnc mill, bouht lathe and some other "hardware junk".

I also tested it all building another, easier tank - T-34 - http://rctank.pl/forum/viewtopic.php?f=62&t=818

But Leopard still has "frozen" status. I intend to continue the idea, just with a different approach :) Now I have easly available Heng Long Plastic parts. I want to use the plastic hull and metal upgrade parts (wheels etc.), but scratchbuild the whole interior - replace the gears, create the watertight compartment for electronics etc. The rest of assumptions (FPV, stabilisation) remain the same :)

Recently I made a set of inserts strenghtening the plastic hull for one of colleagues. Next step - should not be so difficult :)
Author:  Kevin [ Sat Sep 06, 2014 4:22 pm ]
Post subject:  Re: Polish Leopard 2A4 1:16 - scratchbuilt
Hi, great idea vanbasten!
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