Picture of Knex Heavy Cannon v3 barrel strength upgrade
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Check out my Heavy Cannons ammunition strength mod too!

Hi there! Here an 'ible to show you ho to make a Heavy Cannon V3 barrel strength upgrade. I heavily modified my Knex Heavy Cannon V3 barrel and some other things and the cannon is more than 2 times stronger! I actually added a second barrel on top of the normal upper barrel and lower barrel. This way I can extend the barrel over 20 cm (7.8 inch, 0.65 feet), and the most important thing is: The cannon is amazingly two times stronger so will not slap you in the face while loading what happened to me... This thing is just an amazing piece of work done by I_Am_Canadian, and I modified it :-)

-Ultra strong.
-Amazingly powerful, effect and range.

-High part use.
-Difficult to make.
NOTE: you can only use the mod in combination with my modded ammo , or els the red thing at the end of the ammo will break or come loose and also some other problems like that the cannon breaks in half and slaps you in the face, what is annoying and painful. 

You will change the barrel from part to part, until your whole barrel has been changed/modded.
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Step 1: Remove a part of the upper barrel

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You are going to change the barrel from part to part, until your whole barrel has been changed/modded.

You will take a 20 cm part (like below) from the original cannon each time, change it, and put it back and do this like 4 times for each barrel until your whole barrel has been modded. (See next steps) 

Pic 1. Get this part from the original v3 cannon. 
Pic 2. Another view.
Pic 3. Another view.
Pic 4. Another view.
Pic 5+6. Click off the two yellow connectors and do the same at the other side.
Pic 7. Get that thing off.
Pic 8. What you should have left.
Pic 9. The removed part.

Well, go to next step!!!

Step 2: Make the reinforced upper barrel

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Step 3: Break!

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Go and vent yourself on a pair of drums!
Very nicely done! And thank you for your kind words :-)

Also, step 3 is awesome.
H1T4TCH1 (author)  I_am_Canadian3 years ago
Hey man nice to hear from you! No problem.

Haha thx it's my dad's (dads' ?) ol' pair of drums :)
Seriously, shut up.
H1T4TCH1 (author)  The Jamalam4 years ago
He's deleted his comment now, but someone with the username STAN followed by a number (Can't remember) but he was spamming and has spammed many instructables with his shotgun.
H1T4TCH1 (author)  The Jamalam4 years ago
Ok, I understand. You're awesome anyway haha.
93944 years ago
his looks so hard
H1T4TCH1 (author)  93944 years ago
It is'nt if you do it well, I have found a much better way... I'll edit the whole thing in 2 weeks because I build it again!
TigerNod4 years ago
The newer versions of the Heavy Cannon aim to reduce piece count. This one increases piece count instead?
H1T4TCH1 (author)  TigerNod4 years ago
Yes it does.

Lekker boeiend ik heb toch genoeg stukjes (meer dan 13500) en hij wordt 2.5 keer sterker =)
Lol, okay.
H1T4TCH1 (author)  TigerNod4 years ago
xio4 years ago
>>difficut to make -- i lol'd... this is the craziest...
H1T4TCH1 (author)  xio4 years ago
xD i know it's hard... thanks! :)
jmm724 years ago
very nice
H1T4TCH1 (author)  jmm724 years ago
thank ya!
~KGB~4 years ago
now thats bulletproof! lol
H1T4TCH1 (author)  ~KGB~4 years ago
hahaha lol :)
~KGB~ H1T4TCH14 years ago
MegaMetal84 years ago
H1T4TCH1 (author)  MegaMetal84 years ago
thank you!