Space Engineers

Space Engineers

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[obsolete & broken] R-Tec "MPAC" Prototype - Modular Piston Autofire Cannon
   
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3 Aug, 2014 @ 9:03am
16 Sep, 2014 @ 12:41pm
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[obsolete & broken] R-Tec "MPAC" Prototype - Modular Piston Autofire Cannon

In 1 collection by Brenner
R-Tec
10 items
Description
Obsolete / Not Working

2015-04-19: has stopped working at some point thanks to some changes to SE.
Repair attempt was unsuccessful.
Plus this gun was completly and utterly obsoleted by projector base grav guns anyway.


Update 2014-08-06: torpedos are now immune to grav shields. I'm using a method that involves the new sensor blocks, they shut down the torpedos mass block once they see a small landing gear mounted on the front of the cannon. At that time they are already at full speed. Without powered mass blocks the torpedos don't react to grav shields anymore....


A grav cannon, capable of autofire. Designed to merge with a capital ship and act as its main weapon, although it can also operate alone. I built this to have a standard large weapon for future R-Tec capital ships, but if you want to mount it on your own ships, go for it. Just remember to link to this page in case you want to publish it on Steam Workshop.

Features

- Autofire capable. Meaning you only have to click one button to fire and it keeps firing until you either press another button or the ammo runs out.
- Uses Pistons as means of delievering the torpedos, instead of the popular rotor revolver.
- Exchangable magazine (like a real world assault rifle), via merge blocks.
- Designed to be merged to a large capital ship, as a huge additional weapon system.
- The cannon can also be used as an independent ship, it has its own power source, gryos and some (slow) engines.
- Easy to aim. The integrated cockpit allows for precise shooting. I also added 2 rocket launchers as target lasers.
- Ignores gravity shields.

Usage

- You start inside the cannon with a magazine already mounted.
Make sure the pistons are set to -0.5 m/s and 10m maxium height before firing (the game seems to randomy alter my settings with every update)
Then hit the "3" key to turn the pistons on and watch the destruction ...
- To reload, ditch the empty magazine (turn mergers off) and merge to a fresh one. Be aware that the "merge shock" can sometimes destroy the pistons so the magazine becomes worthless.
Try to be careful when merging to a new magazine - the best way is to turn off the cannons mergers, and only turn it on again when the 2 sets of mergers align up perfectly.
- To start firing again, get the piston of the new magazine moving by pressing "Reverse".

Inner Workings

1. The Torpedo Stack (inside the magazine) is pushed up by the piston(s)
2. The grinders (mounted on the cannon) take care of cutting indivdiual torpedos out of the torpedo stack. This works very fast thanks to the light armor blocks
that were pre-grinded to 2% integrity
3. At the same time, welders repair the mass block and battery.
(This is completed shortly AFTER the torpedo is cut loose so the piston doesn't get smashed by the grav push of the torpedo)
4. The now working mass block of the torpedo and the many grav gens on the cannon speed up the torpedo to max speed.
5. Mass block is deactivated by sensor once it passes by the "small ship" (actually, just a landing gear in front of the cannon). This makes the torpedo immune to further grav influence, for example by grav shields.
6. Torpedo hits its target and does collision damage. If it is a HE torpedo, the explosives blow up when their cargo container is destroyed, dramatically increasing the damage.


Bugs

- Merging large ships can still cause damage to both ships. This can affect the torpedos too, the damage might not even be externally visible at all. The best way to merge large ships is to turn off the mergers, align the stuff perfectly by hand, then turning the mergers back on.
- The game can get extremly slowly when it calculates collison damage
46 Comments
ViccyQ 16 Sep, 2015 @ 10:09pm 
Nice work. will check out your other works.
KingObliv 20 Apr, 2015 @ 4:17am 
You're welcome. :) I was mostly afraid that the Vendetta's cannon would be broken too. I'll test that soon.
Brenner  [author] 19 Apr, 2015 @ 8:45am 
Yep, you are correct. I tried fixing it by adding more grinders, slowing down the piston and even by adding a space ball based bumper system. No success.
Well, thats always a risk when using crazy mechanics like this one ;)

Doesn't matter much, this thing is completly obsolete compared to newer projector based guns (like that on my new "Vendetta" Battleship)

I'll just mark it as broken / obsolete. Thx for reporting!

KingObliv 19 Apr, 2015 @ 6:35am 
This has stopped working. By the 3rd shot the cannon destabilizes and shots start hitting the magazine.
Agent Orange Juice 10 Nov, 2014 @ 1:34pm 
Holy Shit this is amazing, it's way beyond any of my own designs.
Brenner  [author] 16 Sep, 2014 @ 12:46pm 
Good point about the sensor settings, prophet. I reconfigured them and it doesn't need the small ship parts anymore. More elegant this way.

Also added 2 sensors: the first one turns on the welders, grinders and grav gens when the ammo moves into firing position. Helps top avoid accidents ;)
The second one stops the piston after every shot, it acts like a switch between full auto fire and single fire. Default is off, that means auto fire.
JCapt 13 Sep, 2014 @ 11:45am 
Good job.
Prophet_01 10 Sep, 2014 @ 11:26pm 
That is a cool design and compared to other grav cannons, it's also pretty small for what it provides. Love the auto fire.
Btw u don't need small ship parts to deactivate the mass blocks. U can simply do it by setting the second triggerable function of the sensors to do so and set it to react on big ships
Brenner  [author] 5 Sep, 2014 @ 2:55pm 
Yay! My theory is that the pistons somehow .. accumulated bugs. The oldest one I built shortly after they were released, and there were loads of piston fixes after that. Maybe the older ones kept some errors .... or something.

Whatever it is, I'm glad it works again now.
JETNET 5 Sep, 2014 @ 2:47pm 
Well, with that clean up of yours, I can load the map without crashing. YAY!
Additionally, Well done on the breaktrough.