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[Talvieno]

@OP: Very, very awesome, TinyPirate! I'm glad I didn't miss this thread. I'm looking forwards to making one of these myself now...

[Tirion]

Think of the potential! How do thrown trap components behave? Do they hit as blunt objects, or a serrated disk is a frisbee of doom, and a menacing spike is guaranteed impalement with extreme prejudice?

[BloodBeard]

It's amazing that you actually found a useful purpose for dwarfputing  . Your memory cells look a little different from the ones I talked about. I'm not familiar with any tile sets really but I think I see what's going on and that's a neat little tweak. It's not as compact as mine but i'm a bit of an efficiency freak when it comes to that and it looks like a better alternative to this one:

Spoiler: 4-tracked double-carted binary memory cell (click to show/hide)

In that less is moving at any one time for yours and I think yours deactivates faster. Can you time it in steps from the time power is applied to the time when the carts move onto and off the pressure plate? (not when the plate activates or deactivates)

EDIT: In actuality I think your version is several times faster when activating since you don't need to push a 2nd cart to do it. I'd like to add it to my topic on minecart dwarfputing if you will. Now it seems like there's 2 optimum versions of memory cells with their own particular advantages, mine with space efficiency and yours with speed. Did you make it yourself or did you see it somewhere else?

[ranger22550]

use gold spiked balls or if your map has tons of platinum use that

[TinyPirate]

BloodBeard! I thought this was your design! Not the really efficient 3-space one (I didn't want to fiddle with weights), just the basic 4 track space one. Hmm. Now I am wondering what I missed! Feel free to share or mess around with to your heart's content. I will provide a save tonight if that would help.

I will have to try a variety of warheads. Only 8 statues is a little few - I should tell my dwarves to stop making them, I have 300 stored up. Trap weapons seem ok, arrows too, gold. Are seem surprisingly effective because they cause the bad guys toget pushed around and this adds more damage (although relatively light).

[BloodBeard]

The 4 tracked one wasn't of my design. It was described in the How Does Minecart thread but never actually demonstrated, even in ASCII art untill my thread. The one talked about in my thread had both minecarts at the very top or bottom of the track where both moved to the other end while yours more or less acts like a newton's cradle, which is far more effective. Heh, sometimes the best science is accidental.

[TinyPirate]

Shit, I am accidentally efficient? I rock! Well, I recall that my first build involved carts at top and bottom but the carts don't push right and the memory cell never worked. I thought staggering them was what I was meant to do.

I will try and take some measurements tonight.

[BloodBeard]

You probably didn't have something right initially cause i've gotten it to work, but it was a good thing then

I'm editing my thread and hope you don't mind me naming it the Newton's Cradle Memory Cell. Sounds a lot cooler than the long ass names i've given them because I couldn't think of anything.

[ranger22550]

BloodBeard! I thought this was your design! Not the really efficient 3-space one (I didn't want to fiddle with weights), just the basic 4 track space one. Hmm. Now I am wondering what I missed! Feel free to share or mess around with to your heart's content. I will provide a save tonight if that would help.

I will have to try a variety of warheads. Only 8 statues is a little few - I should tell my dwarves to stop making them, I have 300 stored up. Trap weapons seem ok, arrows too, gold. Are seem surprisingly effective because they cause the bad guys toget pushed around and this adds more damage (although relatively light).

well you could us barrels of FB extract i you wanted to play with dangerous things
or use artifact weapons since there un-destroyable

[They Got Leader]

BloodBeard! I thought this was your design! Not the really efficient 3-space one (I didn't want to fiddle with weights), just the basic 4 track space one. Hmm. Now I am wondering what I missed! Feel free to share or mess around with to your heart's content. I will provide a save tonight if that would help.

I will have to try a variety of warheads. Only 8 statues is a little few - I should tell my dwarves to stop making them, I have 300 stored up. Trap weapons seem ok, arrows too, gold. Are seem surprisingly effective because they cause the bad guys toget pushed around and this adds more damage (although relatively light).

well you could us barrels of FB extract i you wanted to play with dangerous things
or use artifact weapons since there un-destroyable

I don't think flinging objects at high velocities break objects in DF.

[Urist Da Vinci]

Were the ballista bolts made of wood or metal? If wood, then they probably just did blunt damage because they weren't very sharp...

Metal bolts, also tried a metal arrowhead this time as well.

Spoiler: for length (click to show/hide)

** Starting New Outpost **
A snow storm has come.
An animal has grown to become a Stray Dog.
The flying -bronze ballista arrow- strikes The Stray Puppy in the right rear leg, shattering the bone!
The flying -bronze ballista arrow- strikes The Stray Puppy in the left ear, bruising the skin!
The flying -bronze ballista arrow- strikes The Stray Puppy in the upper body, bruising the muscle and bruising the right lung!
The Stray Puppy is having trouble breathing!
The Stray Puppy is propelled away by the force of the blow!
The Stray Puppy's left front leg skids along the ground, bruising the muscle!
The Stray Puppy slams into an obstacle!
...
The flying -bronze ballista arrow- strikes The Stray Puppy in the upper body, bruising the muscle and shattering the left true ribs!
The Stray Puppy is propelled away by the force of the blow!
The flying -bronze ballista arrow- strikes The Stray Puppy in the right rear leg, shattering the bone!
The flying -bronze ballista arrow- strikes The Stray Puppy in the upper body, bruising the muscle and bruising the liver!
The flying -bronze ballista arrow- strikes The Stray Puppy in the first left front toe, shattering the nail!
The Stray Puppy slams into the Stray Puppy!
The flying -bronze ballista arrow- strikes The Stray Dog in the lower body, bruising the muscle and bruising the guts!
The Stray Dog is propelled away by the force of the blow!
The flying -bronze ballista arrow- strikes The Stray Dog in the right front leg, shattering the bone!
The flying -bronze ballista arrow- strikes The Stray Dog in the right rear leg, shattering the bone!
The Stray Puppy's upper body skids along the ground, bruising the muscle and shattering the left floating ribs!
The Stray Puppy slams into the Stray Dog!
The Stray Puppy slams into the Stray Puppy!
The Stray Puppy slams into the Stray Dog!
The Stray Puppy's upper body skids along the ground, bruising the muscle and shattering the left true ribs!
The Stray Puppy slams into the Stray Dog!
The Stray Puppy gives in to pain.
Kel Aranmosus, Siege Operator cancels Load Ballista: No ammunition.
The Stray Puppy is no longer stunned.
...
The {bronze ballista arrow head} strikes The Miner in the lower body, bruising the muscle and bruising the pancreas through the (cave spider silk cloak)!
The Miner slams into an obstacle!
The Miner's left upper arm takes the full force of the impact, bruising the muscle through the (cave spider silk cloak)!
The Miner stands up.
The Miner is no longer stunned.
** Starting New Arena **
...
You drop the steel pick.
The steel pick strikes Human 2 in the right upper leg and the severed part sails off in an arc!
The Human 2 falls over.

[TinyPirate]

BloodBeard: so I have invented something and demonstrated minecart memory cells for the first time ("on film")? Wow, I am so chuffed! And yes, I see the difference now. Is anyone sure the original design works? I haven't seen carts push each other so both move at once, only Newton's Craddle-like behavior.

[omg_scout]

Can't watch it at work, but if it works like you say than it is awesome:)

Oh, and could you please provide a savegame so I can inspect it on my own?

[BloodBeard]

BloodBeard: so I have invented something and demonstrated minecart memory cells for the first time ("on film")? Wow, I am so chuffed! And yes, I see the difference now. Is anyone sure the original design works? I haven't seen carts push each other so both move at once, only Newton's Craddle-like behavior.

They can be made to both move at the same time (I think the pusher needs to be heavier than the pushee for that), but it doesn't necessarilty need to be that way. The pusher only needs to push the other cart to the other end, and the roller continues to move the pusher to the other end and stopping against the other cart. That's how my smaller version works. When the heavier cart pushes the lighter one, they both shift to the other end at the same time, but when the lighter one pushes the heavy cart the heavy cart goes first, then the lighter. It's slower but it gets the job done all the same.

[TinyPirate]

Second video! This one with a new FROGGER defense system http://www.youtube.com/watch?v=qUF5R7hQppk