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#1

Intricate Piston Question

Archive: 9 posts


If this has been already asked, I apologize.

If I sound like a noob, then it's fine because I don't mind if you call me one.


Anyway, I have a pic below explaining what I'm asking:

http://img33.imageshack.us/img33/7146/aaatestpic.png

Ok, now. The black lines are solid walls, basically. The purple lines are two separate objects that the pistons are attached too. They can be whatever shape, that's not the point.
The red lines are arrows indicating what I want the pistons to do.

If you look at the current position the purple lines are in, I would like them to move with the arrow facing right (first). When they reach a certain point, I want the arrows facing up and down to take effect and move the purple lines closer to the horizontal black lines.

So, the first piston would be connected to the vertical black line, and the second to the horizontal black line.

I've asked this before, and people have suggested putting the first piston on one of the thin layers, with the thick layer attached to the thin material. Then the 2nd piston is attached to the thick material.

However, I do not want to use that method.

I'm just curious if I can have two pistons attached to one object, operated by magnetic switches, that work when the key enter a certain place? Or would the object/pistons brake while in this process because they'd be pulling in two different directions?

lol. Thanks to those who reply!


EDIT: Yes, I could try this on my own, but if someone provides a simpler method, then that helps me tremendously, and that's what this forum is about. I guess.
2009-07-13 04:24:00

Author:
obsoleteXeo
Posts: 134


okay... first of all, to your mag key switch question, yes you can do it, but you probably need to route it oddly... How is this set up? Is a player controlling movement, or is it triggered and irreversable, or constantly triggered, or what? Each solution seems to require different logic to me (as some are irreverable, some aren't).

Second, do i understand correctly in this:

both objects move right, top object moves up, bottom object moves down?

For some reason the wording confuses me, so i figure i ought to be sure.

If that is the case, i don't think your setup will work as you can't make the up/down piston stiff without making the horizontal black walls move as well. I'd personally try making a block (like your description what it is is arbitrary) between the two objects, and attatching the pistons there. Adjusting the lengths will make the objects close to the block as you like (attatch the piston to the opposite side of the block if you want it very close) You can also make the block invisible (via thin material) though that can be more of a pain to connect pistons to.

hope this helps?
2009-07-13 06:55:00

Author:
Burnvictim42
Posts: 3322


If there's room between the two "purple" objects, you could insert a layer of invisible rubber. Then move it to the right along with the purple pieces. The up/down pistons would then be attached to the invisible and set to move away (toward the black), rather than attaching them to the black and pulling them toward.

Did that make sense?
2009-07-13 07:21:00

Author:
v0rtex
Posts: 1878


If there's room between the two "purple" objects, you could insert a layer of invisible rubber. Then move it to the right along with the purple pieces. The up/down pistons would then be attached to the invisible and set to move away (toward the black), rather than attaching them to the black and pulling them toward.

Did that make sense?

That's what I was thinking... except I wasn't 100% sure what exactly he wanted... :blush:
2009-07-13 07:34:00

Author:
Trap_T
Posts: 431


Yes, but there is to be no space between the purple lines. They look as though they are one object, actually, but are two. Pistons between would create a space there, something I don't want.

I got a hint from Ninja yesterday, and I'll go explore that. I'll post the solution or problem depending if it works or doesn't.

I did poorly word it, though; I apologize. Good help too!
2009-07-13 16:57:00

Author:
obsoleteXeo
Posts: 134


In terms of adding pistons in between: you can connect pistons to the other side of the object, so that when the piston retracts they come together flush.2009-07-13 17:38:00

Author:
rtm223
Posts: 6497


In terms of adding pistons in between: you can connect pistons to the other side of the object, so that when the piston retracts they come together flush.

Wait, you contradicted by mentioning adding pistons in between, then said place them on the outside.

I'm assuming it's the latter, correct? For the vertical movement, place them on the outside of the object rather than the inside?


Yes, that is what Ninja suggested and I will work on later today.
2009-07-13 17:41:00

Author:
obsoleteXeo
Posts: 134


Well, yeah, sorry. You said you didn't want to put them on the inside, I was offering an alternative...

Something to watch out for, if you are doing this, you are best to do it in pause and make sure you set the piston to stiff before unpausing. Non-stiff pistons don't like being at more than 90 degrees and can flip out and crush things :/ but you are OK if they are stiff.
2009-07-13 17:46:00

Author:
rtm223
Posts: 6497


K, thanks. Most of the stuff I do is while paused, but good precaution. Thanks.2009-07-13 17:47:00

Author:
obsoleteXeo
Posts: 134


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