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| Team/University | Notable Changes from 2019 |
|---|---|
| IMPULS/Kielce | -Pretty much the same arm. In fact, it looks exactly the same. -Still looks like its constructed from mainly aluminum tubing -End effector design is mostly the same, but now they have a different (interchangeable) gripper for heavy object retrieval -Still don't have an attachment for allen key or keyboard operation, they just use the claw manually to grab everything -They have a controls briefcase! |
| Ryerson Rams | -They are using planetary gearboxes on the wheels. Not arm stuff, but interesting to note -Changed from 4 finger gripper to 3 finger gripper to grab cylindrical objects better -Confirmed that their forearm from last year was belt driven -Entire forearm is being redesigned, so theres not a lot of footage for this years design. They are still using a belt driven design (I think), but last year it was enclosed in box tube making it hard to access -They do have an allen key attachment that looks very seperate from the main claw (claw nowhere to be seen) -Allen key attachment is motor driven so it has its own axis of rotation |
| Stanford Student Robotics | -Still using scara arm, but switched to worm gears on z axis rather than belt drive -Belt drives are still used on forearm. Two stage belt drives for high ratio -Claw design was upgraded to be fully 3D printed instead of whatever fiberboard they were using before. Rotation is still driven by single motor, and now there is an allen key slot in the middle of the claw using the same axis of rotation |
| PCz Rover Team / Czestochowa | -Arm is probably the exact same, but no chain drive seen. Unknown what this was replaced by |
| Missouri | -Differential joints are used on turntable and claw -Worm drive used on base of arm, but wrist uses some custom planetary drives -Arm design has been slightly changed to use more carbon fiber than previous years, but overall is mostly the same |
| Cornell | -Arm has been fully redesigned, and now uses custom cycloid drives made from 7075 aluminum. -Carbon fiber tubing still used for main arm construction, with 3D prints and some aluminum on wrist -They also use ultem 1000 partially for construction -Pancake motors are used for their low profiel |
| Michigan | -Still uses carbon fiber tubing and claw design looks essentially the same -Uses custom cycloidal transmission made from lexan? some clear plastic, probably lexan |
| Manipal | -Cistom linear actuators are used translate the arm -Carbon fiber tubing is used for some structural coimponents, but there is also a fair amount of aluminum -Looks like they used the tube of a shop vac to house cables -Timing belt is used on turntable |
| Monash | -Maxon motors are used in conjunction with custom cycloid drives -Aluminum tubing is used for the arm -Claw is super interesting. They used a lead screw to move the claw fingers, and use that lead screw axis to screw in bolts |
| BYU Mars Rover Team | -Looks like they switched to a cylindrical arm -Linear actuator powers z axis -Three links on arm made from carbon fiber tubing -Grippers are also powered by linear actuators |
| ITU Rover Team |
Extremely stiff arm And they use worm gears |
Notable Changes in 2020
- A number of teams are moving to custom cycloid drives
- Most teams just improving their old arms