BTW Ebilness

[finite8]

Hmm....

Block Dispenser, rapid redstone pulser, Fill with TNT.

Gonna have to try test this ebil device. Could be a handy "Give me all your diamonds and your enchanted gear or your base is going to resemble a Chunk Error" Anarchy scenario.

[DocHussey]

Friggin' sig'd.

[Ribky]

I just gave a similar contraption a quick test after reading this.

You're a sick bastard, it's glorious. The destruction is ridiculous for the small amount of supplies needed.

[TheInfernalEnchanter]

Just imagine if you had 10 of these setups hooked up to a tripwire... Bye-bye zombies... Or griefers...

[finite8]

I just gave a similar contraption a quick test after reading this.

You're a sick bastard, it's glorious. The destruction is ridiculous for the small amount of supplies needed.

[TheAnarchitect]

What I'm trying to make out of this is a self-loading rapid fire TNT cannon.

[finite8]

Ever since that Minecraft over-engineering episode, I've always wondered if it's possible to use the "Invulnerable when damaged" period to make a safe-on-launch player cannon. i.e:

i.e: TNT behind player. Just before the TNT blows, hit player with arrow. Player should have about a second of being invulnerable. If the TNT blows during this time, the player SHOULD be launched and not suffer any damage. Combine this with some kind of ridiculous TNT concentrator and the player in theory should be launch able up to maybe 1.4km.

Not sure how a server would handle this though, potentially flying through chunks before they have even generated.

[TheAnarchitect]

Well all I've figured out so far is how to turn a BD into a self-sealing breech loader. With timing I think I can make an auto-loader, but I need to sleep.

[DaveYanakov]

The auto-loading part is easy enough. Just filter the powder from your mob trab and the sand from a cobble blaster into stewing pots set to tip into a stream that flows over a wicker filtered hopper to your loading hopper. Wicker filter deposits leftover sand and powder back into the stewing pots by way of item elevator. I imagine if you had the patience you could use such a device to do a hard excavation of a very large pit indeed.

[CycloneSP]

O.o this sounds awesome. Can I has a video plz?

[TheAnarchitect]

No Dave, that's not what I meant. I'm not gonna build a mob farm on-site to bombard somewhere.

Here's what I've worked out: Put a stack of TNT and a single obsidian in a block dispenser. Now send one short pulse to place the TNT, and then hold a long pulse so the obsidian remains placed until the TNT explodes. The obsidian will protect the BD from the explosion. With this setup, you can have a TNT cannon with a "clip" of 64 shots. This can be adapted to most popular TNT cannon builds.

Then with a properly timed repeater array, you can cycle this signal so that the gun will automatically fire every 10 seconds or so (the explosion time of a TNT block sets the minimum bound here). This will bombard the area with one TNT blast every 10 seconds for around 10 minutes.

finite8's system is definitely more destructive in a shorter time period for cheaper, but for the most part has to be directly above the target. I have some ideas how I might get the rate of fire higher of a proper cannon higher, or at least the destructive spread. Unfortunately, testing these designs has shown a tendency to freeze my computer. Even if it's technically feasible, I'm not sure my poor machine can handle any more. (Also, this is why no video from me. I can't even screenshot without incurring a crash).

[Battosay]

This just gave me some very nasty ideas. Be prepared, Anarchy friends ;)

[DaveYanakov]

Interesting. I see how you're handling the propellant now but how are you loading a charge? Or are you using a more standard charge loading system for that?

[Calcifire3691]

I was toying about with this concept for an auto-quarry a bit ago in my test world :P
(I decided it was interesting but ultimately impractical, on one hand, you don't get any cobble clogging your inventory, on the other it takes tons of mining charges and is likely to hit a lava pocket and ruin everything)

now it has a purpose again, orbital strikes and it comes in three flavours, dynamite for threatening/ power shows, charges for precision, TNT for exterminatus :D

[finite8]

Test 1

[AngelWithDirtyHands]

I'm afraid now. *hides in hidey hole*

[haphazardnuke]

Huh. Nice bomb, but isn't it a bit expensive?
2 cobble, 4 smooth, 6 mossy, 6 RS torches, 5 RS, and 4 soul urns, not to mention all the sand and gunpowder.
I guess everything in that list is renewable, but still, that's a lot of work for a one-time hit.
The cannons mentioned above are probably better, but I'll give you points for the compactness and simplicity.

[finite8]

Huh. Nice bomb, but isn't it a bit expensive?
2 cobble, 4 smooth, 6 mossy, 6 RS torches, 5 RS, and 4 soul urns, not to mention all the sand and gunpowder.
I guess everything in that list is renewable, but still, that's a lot of work for a one-time hit.
The cannons mentioned above are probably better, but I'll give you points for the compactness and simplicity.

Big boom = Big cost. Besides, if you have managed to establish the required facilities, obtaining the supplies should be pretty straight forward.

I am however unsatisfied with the results. The boom was big, but not nearly big enough. I need to see if i can squeeze more out of the BD. My goal is to achieve the highest Boom / Volume ratio.

Hmm... perhaps combining a wool block above, covered in arrows will add a fun "Shrapnel" effect. *ebil grin*

[DocHussey]

Just a word of thought from me- rapid pulse would work okay if you were raining int down, but for a full stack of 64 like that. you wasted alot because the TNT destroyed alot of other TNT in the same space making a zero damage smoke bomb. Make it rain or lengthen the pulse somehow, more boom

[TheInfernalEnchanter]

Teh ebilness...
It... IT BURNS!!!
*Head explodes*

[DxPanxD]

Just a word of thought from me- rapid pulse would work okay if you were raining int down, but for a full stack of 64 like that. you wasted alot because the TNT destroyed alot of other TNT in the same space making a zero damage smoke bomb. Make it rain or lengthen the pulse somehow, more boom

Tnt doesn't destroy other tnt entities, it launches them, which is why the explosion spread out rather than down for the most part. The only wasted tnt was what ever remained in the block dispenser.

[DaveYanakov]

I only counted 8 ticks before the first boom took out the dispenser. That's hardly any volume savings at all since you used technically 8 meters of floor space. Getting the pulse rate up is going to be vital for a build like this, else you'll need to dig a pit to dispense the tnt into so that it takes a couple explosions before the dispenser gets popped.

[redrew89]

This could also be amusing if one were to swap the stack of TNT for a quantity (say, 16, to avoid lagging an SMP environment) of soul urns.

*Cackles evilly, before devolving into a coughing fit.*

[Donzaffi]

No Dave, that's not what I meant. I'm not gonna build a mob farm on-site to bombard somewhere.

Here's what I've worked out: Put a stack of TNT and a single obsidian in a block dispenser. Now send one short pulse to place the TNT, and then hold a long pulse so the obsidian remains placed until the TNT explodes. The obsidian will protect the BD from the explosion. With this setup, you can have a TNT cannon with a "clip" of 64 shots. This can be adapted to most popular TNT cannon builds.

Then with a properly timed repeater array, you can cycle this signal so that the gun will automatically fire every 10 seconds or so (the explosion time of a TNT block sets the minimum bound here). This will bombard the area with one TNT blast every 10 seconds for around 10 minutes.

finite8's system is definitely more destructive in a shorter time period for cheaper, but for the most part has to be directly above the target. I have some ideas how I might get the rate of fire higher of a proper cannon higher, or at least the destructive spread. Unfortunately, testing these designs has shown a tendency to freeze my computer. Even if it's technically feasible, I'm not sure my poor machine can handle any more. (Also, this is why no video from me. I can't even screenshot without incurring a crash).

This sound like a good siege weapon, i have an idea to modify it to put it in my tnt canon. Pictures follow closely

[finite8]

To append to my design goals: Big Boom, Small Size, Hidden.

The only problem with the "Rain of Trinitrotoluene" approach is that your victim only needs to look up to see where the destruction is coming from. Also, The rain approach will be more biased towards a "drill" type of destruction rather than a "Thermonuclear Crater" level of destruction which is what I'm after. Total TNT doesn't really matter, its also the Even spread involved.

I'm trying to remember if there is a maximum speed at which the BD can dispense...