Skyrise(2014-2015 Toss Up) Suggestions

Hey guys!This is one of my first posts on this forum,so please forgive me if I screw anything up:confused:.I want to talk about Skyrise ideas and suggestions along with tactics(Please,no blueprints or anything big,just need an idea).Before we begin,if you do not know what Skyrise is,please watch the following:

https://www.youtube.com/watch?v=PJ-5H3JVtPs

LIFTING:
If you watched it,or already know what it is, please post any suggestions you have.Before we get into it,I’d just like to say that as of current,I have finished my first year of VEX and am waiting for next year to start.The most important thing I need to know,is what lifting mechanism is best?I would think that a scissor lift or reverse double four bar would be best,as they are compact and quick.I am veering towards the double reverse four bar,however,as it is not like this year where we had to get under a bar.I would like a lifting mechanism that could preferably lift multiple cubes and place them as well (I don’t want an entire blueprint,just need an idea:)).

SUGGESTIONS:
I would like to know what my team could do to optimize our performance.We received a suggestion last year to wear pink t-shirts last year to win,however,it did not work(Messing around,we like to have fun here ;)).Such as how we should use rubber bands,what wheels we should use,and if we should make a fast robot or moderately heavy robot.I would think chassis wheels are best for this Toss Up as mobility and speed are key.I would also think other teams would focus on scoring rather than preventing you from scoring.

TACTICS:
Such as what should be done during the competition. What should the autonomous do and should we use sensors?
Thanks for reading:D if you read all the way down here,you’re pretty cool!:cool:

If you want tactics wear rainbow wigs and noisemakers :D. If you were at the technology division elimination matches you probably know what i’m talking about. Its also very distracting.

I voted double four bar… but elevators work well too… :confused: :confused: :confused: :rolleyes: :wink: 0.o

I’m liking the reverse double four-bar here. It easily gets past 60" by my calculations, and I’ve always thought of elevator lifts as a little annoying and sometimes get stuck. Scissor lifts in my opinion also get jammed a lot - even if you build it right.

Idk about you guys but I’m aiming for a double reverse six bar just for fun and if it becomes functional I will use it to a good use. I don’t really know if it is more effective than a double reverse four bar.

Ok guys im just going to point something out but the past two years our robots have not been able to reach their “full potential”. In sack attack and toss up there was some barrier that forced us to make our robots lower than the 18" allowance. Now seeing that people that had built 6 bars for toss up with 12" towers that reached around 24" or higher… imagine if you had those extra 6" you could still reach a decent height that would score in most goals.

In my honest opinion I think a simple 6 bar or 8 bar would do. And with that, I feel teams should focus more on the manipulator because those game pieces are pretty big.

You’re wrong. A six-bar will NEVER reach 60". Haven’t done the math in a week, but I don’t think an 8-bar will work, either.

Oops! Forgot about the 60"! :eek: This changes my plans completely…

Always use sensors :slight_smile: They make your life* infinitely* easier. They may be a bit harder to code your functions with, but after your functions are tested and done, they make you life WAY, WAY easier. :smiley:

A six bar can probably work. Definitely an 8 bar. I don’t want to give the ‘how’ away though. Sorry :frowning:

Personally, we were thinking about an, 8, 10, or 12 bar. Does anyone have photos or videos of one?

Only way you’re making a six bar work is with a joint at the top for an additional wrist motion, which is not just a six bar, it’s a compound lift.

A 12 bar is essentially a scissor lift by that point. It’s just awkwardly turned on it’s side which isn’t exactly ideal given the space requirements.

the flaw in the use of the 6 bar or 8 bar, or any non linear lift is the weight issue. The cubes weigh 1.12 lbs apiece and if you are lifting say the generic two, and a 1.5-2.5 lb intake then your robot will tend to tip forward every time you lift the arm, and if it doesn’t tip forward it will be extremely easy to knock backwards when completely raised. So for those who are making non linear lifts good luck and if it works well I will be very impressed, other wise I will laugh :smiley:

The balance is an interesting problem that we had not thought of until yesterday, however, yesterday our team devised a way to increase our balance significantly. It should keep us from tipping pretty much ever.

I am think about having flip down claws to maximize space like a lot of teams did this year with intakes and I’m thinking of some type of scissor lift.

Always use flip down intakes. They give you way more tray capacity. Flip down intake and side rollers, in my opinion, are always a must. Sorry to the GDC :stuck_out_tongue: (I’m almost positive that skyrise was intended to eliminate side rollers lol)

Elevator, or an uneven virtual four bar (maybe with a chain bar in the second stage as well).

Gah, I am thoroughly sick of flip-down intakes and rollers XD

What is basically the exact same design has been used twice in recent years, and it just seems to be unimaginative to simply continue to re-use the exact same system every year - particularly when that system may no longer be the most effective.

Also, you’re going to have to work around fitting your rollers in the 18" when the cubes themselves already take up eight inches. With the tall flaps on 4" rollers you will just barely squeeze in there, if at all.

Which is why he needs his intake to fold up and flip down.

However I do agree that side rollers are not ideal this year, although they may work, it’s just that people know how to make side rollers and are getting a bit lazy and not try anything new.

That’s a pretty far-fetched claim.

I am pretty sure that my team is not going to just pick the side rollers because we are lazy. Aren’t claws easier to make than side rollers? If we know that side rollers are going to work well with our design, and have awesome efficiency, why would we not use it? Why sacrifice lesser efficiency with, say, a claw, when you can have something more efficient like side rollers?

Again, you all do what you want :slight_smile: I am glad to know that there will be very diverse robots this year. It will make this game very fun.

I think an 8 bar can work with a little editing. I’m not sure who but there was a team from Texas who made a four bar work in toss up.