Hey, that’s a pretty nice robot you got there. Being new to this sort of thing, how did you rig up the vertical extender? Sorry if I’m not using the right terminology.
Not part of their team, but it's some linear slides with a motor attached to a spool. If you string the slides correctly, the motor spinning with tighten the string making the slides go up.
Are you guys stringing the lift so it can move up and down without surgical tubing if so how are you guys attaching the string to the pulleys. Do you guys string it on both sides of linear slides or just one?
Sujay Potlapelly, right now we are cascade stringing both sides of our vertical lift. We don’t have and surgical tuning or springs at the moment, but we are just very exact on our string length and tensioning. We are actually using eyebolts instead of Pullys atm.
The motors are andymark 20:1 orbital motors, they run very smooth and fast. During autonomous it runs with the imu and 2 deadwheel encoders to navigate. It is very smooth because it uses proportions to set motor power and control speed.
I also had another question about your movements in autonomous. How do you guys make it so smooth and exact? We are having different variations everytime we run our autonomous.
Yep, it’s basically just hanging on like a hook that’s attached to a servo. Then on the last block we doin it out and raise the capstone with the block and it scoops it off the hook.
@@tropicfr0stbite_822 What do you mean by double Odometry? If you have any sort of holonomic drive, you need at least 2 encoders. Even if you use drop center drive, I would recommend using at least 2 encoders. My team uses 3 encoders and is probably the best setup to use if you want the most accuracy. Two vertical encoders and one horizontal encoder. If you use 2 encoders, you also need to use the IMU.
@@tropicfr0stbite_822 You need at least two wheels to track motion in two axes. If your drivetrain can only move in one direction then you might be able to get away with one.
it is a vex 393 motor. they count as servos under the ftc rules but for our case works better than a servo and is lighter than a standard motor. switching to that also allowed us to use a second motor for our lift.
I think that they are definitely going to worlds
Umm yeah so they are in my state...
Succ Bugg iowa represent
Hay i miss all of you and i am so proud of you guys
Nice Job to you guys! But how is the wheel intake mechanism so efficient? What type of wheels are those, and how is the mechanism working?
We are using compliant wheels from AndyMark
Wow! Great work on the stacking height.
for vertical extension would extrusion linear slides or rack and pinion linear slides be better
Extrusion linear slides all the way. rack and pinion are prone to slipping and you dont get much height out of them.
@@jacobjstoffer ahh ok. im team 6552 and we always have the most trouble wit claw and slides wen building
Can you guys explain how you are sensing the skystone
Hey, that’s a pretty nice robot you got there. Being new to this sort of thing, how did you rig up the vertical extender? Sorry if I’m not using the right terminology.
Not part of their team, but it's some linear slides with a motor attached to a spool. If you string the slides correctly, the motor spinning with tighten the string making the slides go up.
What is that black cylinder on the end of your vex motor?
That is an encoder we added to track position as the vex motor does not have one built in.
Will we see you at Lemars super qualifiers or are you going to a different one?
I believe we will go to the Johnston Super Qual but we don't know for certain.
Jacob Stoffer lol I guess we will have to wait longer to team up
I have absolutely no idea what this is but wow that was cool
what do you guys use to keep the rev extrusions intact in the air? PLEASE
We use plastic pieces that come with the Rev build kit. they allow the bars to be mounted at a 45° angle.
also what would be the materials and steps needed for the claw you have or a similar one
We based our design on robot in 30 hours
Are you guys stringing the lift so it can move up and down without surgical tubing if so how are you guys attaching the string to the pulleys. Do you guys string it on both sides of linear slides or just one?
Sujay Potlapelly, right now we are cascade stringing both sides of our vertical lift. We don’t have and surgical tuning or springs at the moment, but we are just very exact on our string length and tensioning. We are actually using eyebolts instead of Pullys atm.
@@andrewahrenkiel6439 Thank you for the quick response. Great robot!
Andrew Ahrenkiel If you don’t mind me asking, how did you calculate that string length and tension?
how do you guys have such a smooth drive train
The motors are andymark 20:1 orbital motors, they run very smooth and fast. During autonomous it runs with the imu and 2 deadwheel encoders to navigate. It is very smooth because it uses proportions to set motor power and control speed.
I also had another question about your movements in autonomous. How do you guys make it so smooth and exact? We are having different variations everytime we run our autonomous.
Hello betta
Abhiram Kasu lol
@@seangiomi6126 yea i know him irl
@@seangiomi6126 same robotics team, 15652
They probably use odometers, which are meters attached to a non powered wheel which record exactly how far the robot has travelled.
How do you sense the skystone so fast? do you have any tips on how to do it?
I know its late, but most fast teams use OpenCV
How does the capstone placement work
colin shaw the capstone is preloaded onto the robot. When they are getting ready to stack their last block, the capstone gets moved in top
Yep, it’s basically just hanging on like a hook that’s attached to a servo. Then on the last block we doin it out and raise the capstone with the block and it scoops it off the hook.
How is your autonomous so accurate? Do you guys use Odometry, Motor Encoders, IMU?
Yep we have 2 odometers + the IMU right now.
Andrew Ahrenkiel are they single or double odometry my team was think of using single wide do you guys think that will work
@@tropicfr0stbite_822 What do you mean by double Odometry? If you have any sort of holonomic drive, you need at least 2 encoders. Even if you use drop center drive, I would recommend using at least 2 encoders. My team uses 3 encoders and is probably the best setup to use if you want the most accuracy. Two vertical encoders and one horizontal encoder. If you use 2 encoders, you also need to use the IMU.
Rohan Bandaru my bad I phased that weird how many wheels are on one odometery wheel set 1 or 2 wheels
@@tropicfr0stbite_822 You need at least two wheels to track motion in two axes. If your drivetrain can only move in one direction then you might be able to get away with one.
How do you automate lifting the stones?
like i guess each time you press the dpad up it goes up one stone and every time you press the dpad down it goes down one stone
What's the name of the slides you guys use?
REV 15mm extrusion
@@coryallison9407 oh yeah they are rev, I thought they were the misumi slides
What motor do you use on the top? It is so small
it is a vex 393 motor. they count as servos under the ftc rules but for our case works better than a servo and is lighter than a standard motor. switching to that also allowed us to use a second motor for our lift.
What programming language do you guys use?
We program in Java with Android Studio.
It's amazing
Do you guys go to Detroit or Huston
detroit
ANDY HE yo Andy
@@andew676 hello from 5485
ANDY HE hello from 5356
@@andew676 how is your robot going 5356? is the belt drive working well?
Matchless topic surprise kinder eggs