how does everyone feel about tossing boxs accross the field? with our current design we have both CIM motors running our arm and we could toss multiple boxes accross the field at a time. my biggest concern is damaging other robots. Do you think it is a valid concern?
we are fully running now… i attached a pic taken last week…take a look and tell me what you think… not bad for a rookie??
I would say so, just the arm flying forward might be construed as an endangerment. I would run it by first before it is really too late. It look awesome though, but I would be worried.
I LOVE your bot. Very simple very elegant.
How much air can you get when you toss the containers?
Specifically, how high do the containers get at the peak?
I ask this, because to my knowledge, FIRST has not promised a minimum ceiling height at various venues. Are you in danger of hitting the ceiling at some venues?
Do tell…
Joe J.
well… the hieght of the toss depends on the point of release… we plan on using a magnetic limit switch to make the gripper release the box at a certain point … we will have to play with it a littlebit to get it just high enough to clear the ramp plus a tall robot…the arm has a ton of umph…with both cim motors geared down twice. If we are not careful we could send them smashing into the opposite wall… could be kinda fun if you are throwing them at your opponent drivers… haha
i like it but… read the rules
its not clear too me but if you use springs, the only thing you can use is the latex tubing. i dont know if this excludes pneumatics and motors. it would suck if you couldnt use that arm.
Very nice robot but easy on useing the rookie tag. You are maybe a rookie by number but you have some experience. You also look like an add for 80/20.
Very nice hope you guys do well.
Did someone say Catapult (Trebuchet’)?
Looks very cool, it will be very interesting to watch your robot toss totes across the field.
Woohoo! 2001 TechnoKat robot in the background! 
*Originally posted by Quentinfool *
**i like it but… read the rules
its not clear too me but if you use springs, the only thing you can use is the latex tubing. i dont know if this excludes pneumatics and motors. it would suck if you couldnt use that arm. **
We’ve said it many times. The rule says IF you’re using some kind of elastic energy as the actual release mechanism. It says nothing against throwing it with a motor. And remember, folks, the best way to aim your projectiles is to set up different switches for different angles of launch. Remember your basic physics.
looks sweet… what is the air compressor for?
Is it done?
I see the compressor, so there must be more.
The revolving light on yours is kind of hidden. It looks like it is only visible from 180 degress. There are some problems with that, so if you aren’t set I suggest moving it to a more visible area.
Nice treads. Is your robot going to be under 14" tall? I can’t really tell from the picture.
well guys the robot will be under 14 inches to go under the bar… but we have been having some problems with the arm turret… the kinda torque needed to throw boxes just cant be done by what we have designed now… we just don’t have the power… the arm will just be used to stack boxes. … chuckenum is kinda out…
wassup mike
decide to change the design…again, no jsut playing… looks good but i wanna see at least one catapult out of our bot:D see you monday
Ps thatll be fun to animate
matt
our arm looks similar to yours so i’m curious to see how well it throws. We have 3 joints(base, elbow, and the grabber at the end is on a short joint) If you roll that all up with a box and then open it as the arm swings over the top of the robot we can get a cool trebuchet like effect. Now all it has to do is be finished… maybe tomorrow. I’ll tell you if it works 
With a 9 foot arm like ours it doesn’t have to be moving fast to make it over the ramp. Its already sooo high up… Eat that tower of Babel!
Anyway the arm theoretically does 90 degrees in 1.2 seconds and that means the end is moving about 15 feet per second. but those calculations are very optimistic. Earlier in the competition i calculated that the box would have to be going 20 feet per second or something close to that to get about 30-40 feet of distance which is about 80 foot pounds i believe. But that was calculated from the ground. I guess if you combine that movement with that of our second joint the box would be moving at approximatly 20 feet per second. So maybe just maybe it will work.
P.S. i don’t think our ceilings are high enough to test this…
i can answer some of the questions
Stephen P looks sweet… what is the air compressor for?
last time i checked to was for our pnematics but i dont know if im at liberty to reveal what they do sorry:(
Clark Gilbert Looks very cool, it will be very interesting to watch your robot toss totes across the field.
Woohoo! 2001 TechnoKat robot in the background!
yes ur correct thanks technokats we borrowed it from u at the clinic thing, it was a big help in showing sponsers what our bot might look like
and lastly
srjjs Nice treads. Is your robot going to be under 14" tall? I can’t really tell from the picture.
at last count i believe it was something like 12 inches tall but again i just sitting in fornt of a computer allday and micheal actually builds the thing
im really glad everyone is taking notice of 1024 and wait till u see our animation, we have a strong foundation and a bright future
over and out
swan
*Originally posted by Ianworld *
**our arm looks similar to yours so i’m curious to see how well it throws. We have 3 joints(base, elbow, and the grabber at the end is on a short joint) If you roll that all up with a box and then open it as the arm swings over the top of the robot we can get a cool trebuchet like effect. Now all it has to do is be finished… maybe tomorrow. I’ll tell you if it worksWith a 9 foot arm like ours it doesn’t have to be moving fast to make it over the ramp. Its already sooo high up… Eat that tower of Babel!
Anyway the arm theoretically does 90 degrees in 1.2 seconds and that means the end is moving about 15 feet per second. but those calculations are very optimistic. Earlier in the competition i calculated that the box would have to be going 20 feet per second or something close to that to get about 30-40 feet of distance which is about 80 foot pounds i believe. But that was calculated from the ground. I guess if you combine that movement with that of our second joint the box would be moving at approximatly 20 feet per second. So maybe just maybe it will work.
P.S. i don’t think our ceilings are high enough to test this… **
How long is your arm, and is that 1.2s all under constent acceleration?
I’m curious, because earlier this year I ruled out catapult bots as physically impossible (of the very close equivlant of, unless you can build a massless arm connected to 4 motors through a frictionless axle…)
Greg
us cataputing boxes is completely out… but the arm is moving now with pheumatics… its working very nicely… since we are going under the bar we didnt have the space to counter weight the arm and get it cranking enough to toss them…
earlier this year I ruled out catapult bots as physically impossible (of the very close equivlant of, unless you can build a massless arm connected to 4 motors through a frictionless axle…
You haven’t heard of a thing called a spring have you? If you need the power of four motors then maybe you’d do better having one motor store energy, that way you don’t burden yourself weight/power requirements of 4 motors and the accompanying transmission.