King Tiger with Firing Cannon

This section is for you to give a commentary / build log of your Tamiya tank. Remember - lots of pictures please!

Postby DanL » Sun Jan 09, 2011 9:42 pm

My first tank (though I build model ships). Video clips and pics.
Great kit. Made mods, additions: remote working lights, smoke, black powder firing cannon, etc etc.
http://www.youtube.com/watch?v=cHNn1ksMBRs
http://www.youtube.com/watch?v=A89KPT26PJw
Attachments
fr-lft.jpg
fr-rt-2.jpg
hull-mg.jpg
mg43-close-on-turet.jpg
prof-rt.jpg
rear.jpg
rr-rt.jpg
tools.jpg
trouble.jpg
damage.jpg
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby DanL » Sun Jan 09, 2011 9:55 pm

more pics....
Attachments
fueling-bw.jpg
batt-port.jpg
phono-jack-charge-port.jpg
aft-hull-shot.jpg
aft-features.jpg
hull-guts-fwd.jpg
hull-guts-aft.jpg
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby DanL » Sun Jan 09, 2011 10:01 pm

Eliminating wire plugs between lower and upper hull....
Attachments
contact-pins.jpg
contact-pins-close-up.jpg
contact-strip.jpg
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby DanL » Sun Jan 09, 2011 10:08 pm

Tamiya turret rotation drive was big, clunky, so made these mods....
Attachments
turret-drive.jpg
small-motor.jpg
turret-gear-ring.jpg
plugs-to-turret.jpg
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby DanL » Sun Jan 09, 2011 10:10 pm

Knobs to control switches....
Attachments
rear-deck.jpg
switches.jpg
aft-hull-shot.jpg
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby DanL » Sun Jan 09, 2011 10:15 pm

Vid capture pic of firing gun...
Attachments
blast1.jpg
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby FireflyKeith » Sun Jan 09, 2011 10:58 pm

Genius :clap: i like your thinking on everything you have done to the KT, making everything accessable and easy to use and still having a great looking tank at the end, keep up the good work :thumbup:

Keith 8)
User avatar
FireflyKeith
Warrant Officer 2nd Class
 
Posts: 1167
Joined: Mon Sep 29, 2008 11:12 pm
Location: Northants, UK

Postby [ICE]monkey » Sun Jan 09, 2011 11:16 pm

very nice indeed , great mods , all very practical
regards, ice
User avatar
[ICE]monkey
2nd Lieutenant
 
Posts: 2675
Joined: Wed Sep 10, 2008 5:58 pm
Location: pluckley ,ashford ,kent

Postby Saxondog » Sun Jan 09, 2011 11:53 pm

Brilliant Dan, I really like the coloring and will follow your lead. The added features are well laid out and compact,very good use of available space.The gun speaks for it;s self, excellent work.

Regards,Blake
User avatar
Saxondog
.
 
Posts: 4308
Joined: Mon Apr 27, 2009 11:06 pm
Location: Tennessee-U.S.A.

Postby tankmad » Mon Jan 10, 2011 12:41 am

Exellent work on the KT you have thought of everything, What did you use for the firing cannon I have a hilti gun and thought about firing the blanks up the barrel but the kick back on the gun when you use it is too strong it would break the turret.
Stevie
User avatar
tankmad
Warrant Officer 2nd Class
 
Posts: 1378
Joined: Tue Jan 27, 2009 11:02 pm
Location: glasgow

Postby DanL » Mon Jan 10, 2011 2:09 am

Thanks everyone.

Stevie - gun details...
You can use either the Plastic or metal barrel. I used the plastic one for lighter weight. For the plastic one to work in the recoil unit, you have to add a piece of brass tube at the breech end to increase the diameter.
The barrel that holds the charge is a small brass tube only about 1.5" long inserted in the muzzle end of the model barrel.
The charge is a very small amount of BP wrapped in flash paper.
NO PROJECTILES!!!! The barrel will not take any explosive pressure if anything is put in front of the cahrge or if the barrel is too long.
Charge is ignited by hot nichrome wire. It is activated by a switch on a servo that is slaved in the Tx programming to the channel that activates the tamiya recoil action.
Attachments
DSC_4178.jpg
Assembled-Ignitor.jpg
Ignitor-Components.jpg
ready-for-assembly.jpg
tam-kt-firing-barrel-builds.jpg
Last edited by Saxondog on Mon Jan 10, 2011 4:26 am, edited 1 time in total.
Reason: Correct spelling errors
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby Saxondog » Mon Jan 10, 2011 4:44 am

Dan, I really think the charge will be hot enough for the ammo we discussed. If you think about it the flash paper may well work as good as aluminum foil? Might have to increase the length of the brass insert. Seeing the charge as depicted in your draft clearly demonstrates to me the elements for the dust to ignite. Your professional graphics seem to bring things into perspective.

The key would be how to load the charge in stages without creating to much resistance, but I'm sure you know more about it than me, I seem to recall a Tiger Gun Test that incinerated the barrel? Excellent system, cheers Blake
User avatar
Saxondog
.
 
Posts: 4308
Joined: Mon Apr 27, 2009 11:06 pm
Location: Tennessee-U.S.A.

Postby tankmad » Mon Jan 10, 2011 6:25 pm

Thanks for the info on the firing cannon Danl you makeit look easy I will definetly think on this although getting the black powder could be difficult in the UK I might have to open the Hilti pellets.
Stevie
User avatar
tankmad
Warrant Officer 2nd Class
 
Posts: 1378
Joined: Tue Jan 27, 2009 11:02 pm
Location: glasgow

Postby DanL » Mon Jan 10, 2011 8:14 pm

Stevie,
DON"T use the Hilti cartridges or the powder from them! That powder is made to burn fast and develop high pressure to drive the nail. You want slow burn (large granulation) black powder that will flash and smoke a lot (because it's still burning as it leaves the barrel).
If you cant get BP, can you buy BP substitutes? In the US, the subs are classified as propellants, not explosives, so are much more available. The subs are probably even better to use (they burn cleaner) One brand here is Triple 7, another is Pyrodex.
Again, do not use Hilti powder, smokeless powders, etc. I suggest you read A LOT about powders and small cannons (I did)before you go this route because this stuff can be very very dangerous.
Another approach that is simpler and works almost as good is to use a wad of flash paper. It is usually available in magician shops. It ignites fast and produces a good barrel flash, but not much smoke and very little noise.
Note that my ship guns and tank cannon are "double-switched". It takes two coordinated control settigs on teh transmitter to fire, and the circuit has a manual safety switch. I use only a 2.4Mhz radio because I don't want to risk the glitches or potential channel overide on a standard FM Tx.
Do not do the gun unless you treat it AT ALL TIMES like a real gun!
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby tankmad » Mon Jan 10, 2011 10:10 pm

Thanks for the advice Danl you are probably right with the Hilti catriges anyway the way things are going in Scotland it will probably be ilegal they are trying to outlaw bb's here.
Stevie
User avatar
tankmad
Warrant Officer 2nd Class
 
Posts: 1378
Joined: Tue Jan 27, 2009 11:02 pm
Location: glasgow

Postby chris3 » Mon Jan 10, 2011 11:13 pm

moin

are these blast modul buyable? never saw this bevor, realy nice.
but sade that it is only a one shoot system :-(.

cu christian
User avatar
chris3
Staff Sergeant
 
Posts: 890
Joined: Fri Jan 22, 2010 10:09 pm

Postby sparks » Tue Jan 11, 2011 3:47 pm

Great work Danl :clap: :clap: :clap:
User avatar
sparks
Warrant Officer 2nd Class
 
Posts: 1155
Joined: Thu Sep 23, 2010 10:57 pm

Postby DanL » Thu Jan 13, 2011 5:53 am

Thanks for the kind comments everyone. Much appreciated.

Her's a vid and more pics.

Vid upload really has the movie coming out poorly. I need to figure out what I did wrong.

http://www.youtube.com/watch?v=A1cpTqv3QlE


Added the camo net as one of the final details. It's coming off - I don't like it....
camo-net.jpg
Attachments
camo-net-2.jpg
snow2.jpg
snow3.jpg
snow4.jpg
snow5.jpg
snow6.jpg
snow7.jpg
snow8.jpg
snow9.jpg
User avatar
DanL
Private
 
Posts: 57
Joined: Thu Apr 29, 2010 1:20 pm

Postby tankmad » Thu Jan 13, 2011 5:03 pm

The firing cannon looks great Danl
Stevie
User avatar
tankmad
Warrant Officer 2nd Class
 
Posts: 1378
Joined: Tue Jan 27, 2009 11:02 pm
Location: glasgow

Postby DerStiervonScapaFlow » Thu Jan 13, 2011 9:04 pm

Wow that is awesome work DanL! Thanks for posting such detail too, Sir you are an "Engineer and Artist"! :thumbup:
User avatar
DerStiervonScapaFlow
Lance Corporal
 
Posts: 141
Joined: Fri Sep 10, 2010 4:23 pm
Location: Orkney, Scotland

Next

Return to Tamiya Builds

Who is online

Users browsing this forum: No registered users and 4 guests