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That's pretty cool.

I just designed/tested an cannon that will take a 3500T engine, and built a mini version with a 140T engine. So far going well. This+really low jump ignition could set new records, estimating 1500 m+ on a flat world.

And yes, you read that right, 35 hundred TNT.

It's basically like that cannon, except bigger. A lot bigger.

And Conundrumerm, can you explain how exactly you got power all the way to the top of your Lambda cannon? After studying it for a while I kinda get it, but not really...

Two more ideas.
The first is to put ice under the rear blocks of TNT, to make them move closer towards the projectile.
The second is for very large cannons, like the Lambda, to make a small segment and copy and paste using MCEdit.

Quote from Aerokid »

Heya! I decided to register an account and join the fun :biggrin.gif:
Please keep in mind, I am very new to cannon physics.

Recently I was messing around with some basic cannon designs, like the one in the original post. However upon attempting to expand on the design for MORE POWAH, it blew up in my face because I wasn't careful about which way the TNT flew when it was activated.
I found a nice open area and starting building whatever seemed like a good cannon design. about 5 or 6 smoking craters later, I found a design that worked. It's very compact, but the design allows for quite a bit of power. The best part is that it's completely stable, it doesn't matter which way the cannon faces, it's not going to blow your face off.

I'm uploading the video to YouTube now, Ill post a link as soon as it's done.
And apologies ahead of time if I just recreated a previous design. To the best of my knowledge, this is a new design. Let me know if I'm wrong.

Ok! All done!

Several animals were brutally murdered during the making of this video.

That's a pretty nice first cannon.

And I am making three triple rails, 42T, 120T, and 192T, shooting 6, 30, and 72 projectiles respectively, as well as a 21/33/45/57/69T (increasing almost infinitely) almost 360° cannon that shoots 23 projectiles, and you can choose the direction it doesn't shoot.

For slow burning fuses, use logs. They are however slightly less reliable. More stacks of wool next to each other make it burn down faster

The wool fuse sometimes goes out, but making it two wide eliminates that almost all of the time. And if you really want to be sure, you could do 3 or four wide, or 2x2.

I like the idea for the fuse, but it is way too complicated. Two designs that work:

Diagrams are from the side, output is on the right.
=Redstone
=Redstone torch on ground
=Redstone torch on side of block
=Wool to be burned


[]




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Freezes my whole computer every time I use it, either displaying created pbuffer or pixels used as the last line in the box. Using OSX 10.5.8

Dispensers placing sand would be awesome. Sand machine cannons!

Quote from caseyds620 »

Quote from shardbearer »

*snipped really ****ing long post that you guys should be thanking me for taking the time to write*

WTF! You my post was important, and you posted over it for this? The main part of this thread is to have fun, and make cool ****, it doesn't need to be complicated!

What?.....

Are you mocking my saying that my post was important, because I don't think I ever did, or are you just mad at me because I posted without replying to you, or do you think that making things organized with a little reality will make you unable to "have fun, and make cool ****"?

Quote from caseyds620 »

Quote from antelopeking »

Cuz' I'm :tnt:!

Who's post was that a response to? Isn't anyone interested in my recent discovery about soul sand in the foot?

That post was a response to nobody, just a newbie making random AC DC references.

And what was your discovery? I just saw a random story about how great your cannon is and then your cannon kinda blowing up when you added two more blocks of soul sand and then it was incomprehensible.

Sorry for my bitchy mood. Im just pissed at your ****ing incomprehensible posts that yell at me and then expect me to understand.

Quote from caseyds620 »

Quote from caseyds620 »

Here is the first half of my bunker.
*snip*
But I'm still having issues with the Right side cannon! I built the left (By that I mean left from in front of cannon) all by hand, and then used MCEdit to perfectly mirror it, and it will withstand a 2T engine, but anything bigger blows the thing to pieces! I have no explanation.

Can mirroring a cannon have adverse effects? As I said, the left cannon works fine, it's only the right that is failing, and I can't figure it out. The engine has full range of wire, the tnt is igniting, yet it appears that the boosters are actually the ones destroying the cannon, and I have never had this issue before. Do I need a safety bar? I just don't understand how the left cannon works perfectly, and they are both facing the same direction! Some explanation please guys.

Will someone please help with my cannon issues, I don't see why mirroring the cannon would affect it, but something weird is going on.

When you reverse the direction, because TNT always jumps mostly east and a little north, changing directions can affect some cannons. The only thing that happens to me because of this is that sometimes the TNT jump onto a ledge without falling into the water, causing an explosion.

I think this thread should analyze what it's here for. To make huge awesome cannons collaboratively? To inform newbies of the basics of cannon making? To make competitive, economical, easy to build SMP cannons?

I think that there should be a couple groups of cannon designs:

Just for fun- Ridiculously long range, many TNT, crazy experiments, ect... Not to be used on competitive SMP.

The Field Sniper- Shoots down moving targets, Minimum range 75, super quick setup, easily aimable. Current best is the Proton Cannon.

The Defender/Long Range Attacker- Built into bases to shoot down attackers, or far away enemies. Examples are the Imperial Avenger, Jolly Creeper, and Vindicator. Most mid range cannons fall under this category. Must be aimable to at least 90°(45° to each side) if it is going to be used as a defender. Minimum range ~150-200?

The Short Range Attacker- To be set up on the fly in front of a castle, maybe hidden inside a hill to give more time, and bombard the castle. Easy to medium set up, decent range, not needed to be aimable. Examples are The Tower, Miniperial Avenger, and The Machine Cannon.

The Long Range Attacker-
Hits an enemy base from afar, highly impractical. Very inefficient, but what (I think) most cannons are designed for. Can take a while to set up, does not need to be aimable. Overlaps with the defender catergory.

Many cannons do not fit into any catergory other than just for fun. One must consider these before designing and building a cannon, and we should have a cannon directory organized by these categories and then by difficulty to build as a subcategory. Here is a start, filled in with the cannons I know reasonably well. Please submit entries to me, or add this to the OP. Thanks.


The Field Sniper-

Proton Cannon
Range?
360° aimable
8 boosters
Manual half block ignition

The Defender/Long Range Attacker-


Imperial Avenger


Jolly Creeper


Vindicator




The Short Range Attacker-

The Tower
85 with a 3T—??? with a 19T
Not Aimable
3—19 Boosters, depending on build. 3 boosters significantly easier than anything else.
Same plane ignition
Very explosion resistant

Miniperial Avenger



And, while writing this, I thought, are cannons really worth it in SMP? Can they really hit a moving person with any accuracy? If not, this rules out everything except Attackers, and can't you just sneak in and plant TNT under their base? Is that not 10 times more efficient, placing the TNT in strategic places and not using boosters?

I think I have come to a conclusion. They are not entirely practical, or the best choice, but you want to use them. They are just awesome. Who cares if they are the best option? The object of this game is to have fun.

This feels kinda unfair competing against someone using the most primitive of TNT technology (well, almost), and I am using soul sand, redstone delays, and jump ignition.

I say the cannon must be level with the ground, because you can build any cannon further up to get more range. It would become a contest of who can build a cannon at the top of the map, and then from there continue as it is now.

And my tower design uses 3 TNT stacked on top of each other. It is airbursting 5 blocks above the 90 line, so aggravating, if I put the angle down one notch it gets to 84.

As with most mods, when I try to install it with Minecrafter, it gives this error:

At least one of the .class files in this package has been compiled with JRE >1.5. Because you are running Mac OS X 10.5, this mod may not work and will cause a black screen when launching Minecraft.

Quote from j.b. »

Quote from shardbearer »

I challenge everyone to be the first to get 100 blocks on 3 boosters. Starts now, and whoever wins gets my constant praise and becomes ruler of the internetz.

Current record-76-Me-The Tower MKII
2nd-75-Me-The Tower
3rd-Formivore-50-The Jolly Creeper

I just tested this, and the standard half block 3T cannon goes 38.

Come on guys. One of us is going to do this.

this sounded fun so i will try a few to see what i can get. initial tests with the simplest of cannons gets me into 3rd place so far with 65 according to your list. here's the recording:

*snip*
maybe i'll mess around with a few more designs later. if i get any better results i'll throw up another video.

Your cannon fired while the TNT was in the air, so it got better than mine, which fired when the TNT was resting on the half block, and got 38. In your video, the front of your explosion was 63-4, so the actual TNT would have been around 59-60, which was what I was measuring. I think that your way is more accurate, so we should use that. That means bump up all my records 3-4 blocks.