Best robotics channel

Well the first stage is directly attached and tensioned to the endgame and the second stage is pulled up by strings attached to the far side of the base near the hinge. The string acts like a 4 bar and keeps the overhang roughly parallel to its lowered state

I knew one of you would point that out

So far we have not really had any issues with referees at any tournaments with reference to the surfaces you mentioned on our bot. One referee did call into question the space between the back sleds as being concave and controlling triballs, but the sleds not protrude enough to turn the tribals with the robot and the back plows the triballs. For that section of the bot the q&a states that it is up to the referee’s discretion. As far as the legality of wedges on the wings, the q&a seems to permit vertically concave surfaces as they function to plow the triballs rather than be in possession of them. “However, generally speaking, we would expect that a "vertically concave" face of the Robot as shown in the sketch would exhibit behavior closer to Plowing (uncontrolled movement in a preferred direction) than Possession.” Hope this answers your question!

I believe currently in local tournaments the judges and refs dont really care about it. However, in higher up level tournaments which are worlds-qualifying or national level tournaments, the judges will be more strict and enforce this rule. This comes from experience where the inspectors were 5x more careful while inspecting our robot during states and signatures. Just be wary of these rules.

@@minlu8309a lot of teams run these wedged wings now, it’s very legal A few examples: 5203G Gremlin 229V Ace 3223A Kachigga And so on

We used a good ole handheld hacksaw… it took awhile and you could probably make a better cut with a band saw but it worked

@@robokauz Thanks. Much appreciated.

Zip ties can be used for anything. I think you’re getting it mixed up with tape, which is limited.

It helps with center of gravity

We start by scuffing the metal so the paint adheres to the surface better, and then put a layer of primer on the metal. After that we just use normal spray paint and apply two to three coats.

We usually just mark them then use a handheld drill

We’ve been kinda working on it since august

Yep 2 slip gears and 2 ratchets

They don’t overheat unless a lot of defense is being played or if we are driving for 5 minutes. We keep freeze spray on hand for back to back matches. We have had hot swaps fall off the drive before and didn’t think they were necessary.

Our motors are at full speed but we usually can’t accelerate to full speed during a match

@@robokauz on average how fast is it going during a match?

What velocity / torque you have it going?

I think your referring to a slip gear? a gear with teeth cut off so when the cata gets so far down there's no longer teeth to engage and so the bands can pull the cata up without interacting with the motor.

Yeah we thread them

Ok

@@robokauzwhat size is the piston threading?

We just used a Hacksaw

There are 2 ratchets which keep it in place

Nope, they are not concave.

The wheels are 2.75 so it isn’t too fast but it is faster than robots normally are. Usually teams have 450 on 2.75.

Do you think 400RPM on 4 inch wheels is too fast? @@robokauz I have a lot of driving experience on 343RPM 4 inch.

I'm not on there team but I assume that they use a single 100 RPM motor to run the slip gears on the catapult. On our robot with we run a similar linkage and it works great.

I'd assume it's a combination of a lot of things. First, the robot is clearly very solidly built and well maintained. So there isn't much variation mechanically. Then, I would imagine they use a PID that they've spent plenty of time tuning to make it as perfect as possible. Finally, if you've ever been to a comp Robokauz was at, you'll notice that they are constantly working to tune their autons to fields and improve them at each tournament. So really it's the culmination of all the hard work they've put into building, programming, maintaining, and tuning the robot and the autons every competition.

@@polar5717 that is correct. Also there are distance sensors located on the rear sleds which line up with the field to add a field centric element to the autons.

@@robokauzI sort of disagree with this idea as it makes your autos slower, harder to make, slower to make and maintain as well as change and it creates an aspect of limitation around moving around field walls and such to minimize inaccuracy. At least one odom wheel makes it insanely easy and fast to make autos.

@@jadynhasstupid2275 true we have used Odom wheels for years and last year with boomerang control we were able to go fast with accuracy. This year we aren’t using the boomerang or tracking wheels, and we haven’t had any issues since the field movements are not very complicated this year and the Odom isn’t very necessary for us.

The slip gear is powered at 100 rpm which equals 100 shots per minute, and the catapult spins at 25 rpm

No all the drive motors are 600 blue cartridges

Yea I would like that too

for the b tier hang

13.7 pounds

Its gonna be a 8 motor drive pto to Z tier hang and a slapper that has a 13ft arch

levitating hoverboard

8 motor flywheel with no drive

@@6842K how did you know?!!!

We are probably going to make some sort of high shooting robot with a blocker, kicker, pto, and a few other things