Like many other teams we notice trends in early competitions that we find would be helpful to our robot. This year we switched to a V-4Bar and Misumi Drawer slides because we saw many teams using them. We also changed to using side grabbers like many teams to try and make our autonomous better.
At 1:32, what are you doing to ensure the screw heads don't poke out of the polycarbonate sheets of the stone ramp? Are you countersinking then applying some kind of tape on top?
we had that happen to us where we went to park and the tape measure was touching a block that was just on the foundation and it did not count and cost us from going to finals 4
Very cool! What is that black thing you use on your slides for wire management? It looks like it works super well! I’ve always had a problem with using something similar to that cause it doesn’t always coil up so nicely and sometimes gets in the way when our slides are going down.
We use a sheathing for surrounding our wires to protect them. We got it from: www.amazon.com/gp/product/B071ZV6MLG/ref=pe_2640190_232586610_pd_te_s_s_im?_encoding=UTF8&pd_rd_i=B071ZV6MLG&pd_rd_r=0E2VJ2XG0VVBS88VT6NC&pd_rd_w=y1pgR&pd_rd_wg=DnSxJ
@@Brainstormers8644 what is the reason for the unique drivetrain design? Was the goal just to lower the drivetrain to create more space above the drivetrain?
how are your slides stringed especially the connection between your spools and the slides? We used similar slides and motor configurations but struggled with finding good places to put our motors in relation to our slides- Rohan Team Unlimited
We connected both of our pull-up spools and the pull-down spool at the bottom of our robot through one axle. We added a rubber band to the end of our pull-down spool to preserve constant tension throughout the vertical movement. The slides are also connected mechanically at the end of the slides. Our pull up string navigates through two pulleys prior to the slide pulleys due to the fact that the spools are in a very bad place relative to the slides (Middle left hand of the screen at 1:30). We played around with countless arrangements for our motors, in the end, we placed them the only way they fit with the rest of the robot and then figured out how to pass the movement from the motor to the spool axle. If you have further questions feel free to email us at brainstormers8644@gmail.com.
You can look up a few explanations of the virtual 4-bar mechanism such as ua-cam.com/video/LUvIH5k8HWY/v-deo.html&feature=emb_logo and ua-cam.com/video/C8Za5GKdSUA/v-deo.html&feature=emb_logo
That’s a great auto, and a fantastic robot. Did you take any inspiration from other teams throughout the season?
Like many other teams we notice trends in early competitions that we find would be helpful to our robot. This year we switched to a V-4Bar and Misumi Drawer slides because we saw many teams using them. We also changed to using side grabbers like many teams to try and make our autonomous better.
Phenomenal!
where did you guys get the small white pulleys like the one at the mid-bottom of the screen at 1:30?
At 1:32, what are you doing to ensure the screw heads don't poke out of the polycarbonate sheets of the stone ramp?
Are you countersinking then applying some kind of tape on top?
Yes, it is a slippery tape to make the stone slide better
we had that happen to us where we went to park and the tape measure was touching a block that was just on the foundation and it did not count and cost us from going to finals 4
this is soooo cool
Very cool! What is that black thing you use on your slides for wire management? It looks like it works super well! I’ve always had a problem with using something similar to that cause it doesn’t always coil up so nicely and sometimes gets in the way when our slides are going down.
We use a sheathing for surrounding our wires to protect them. We got it from: www.amazon.com/gp/product/B071ZV6MLG/ref=pe_2640190_232586610_pd_te_s_s_im?_encoding=UTF8&pd_rd_i=B071ZV6MLG&pd_rd_r=0E2VJ2XG0VVBS88VT6NC&pd_rd_w=y1pgR&pd_rd_wg=DnSxJ
Brainstormers 8644 thank you so much!
Why did you switch from GoBilda chassis back to Acto later in the season?
Because we wanted to try out new chassis ideas and the only GoBilda parts we had were used in the competition robot.
@@Brainstormers8644 what is the reason for the unique drivetrain design? Was the goal just to lower the drivetrain to create more space above the drivetrain?
We did the unique design to be able to fit the misumi slides on-top of the chassis while also fitting under the skybridge.
how did yall make your claw
We went through prototyping multiple designs in CAD and manufacturing them to test before we got to this one.
how are your slides stringed especially the connection between your spools and the slides? We used similar slides and motor configurations but struggled with finding good places to put our motors in relation to our slides- Rohan Team Unlimited
We connected both of our pull-up spools and the pull-down spool at the bottom of our robot through one axle. We added a rubber band to the end of our pull-down spool to preserve constant tension throughout the vertical movement. The slides are also connected mechanically at the end of the slides. Our pull up string navigates through two pulleys prior to the slide pulleys due to the fact that the spools are in a very bad place relative to the slides (Middle left hand of the screen at 1:30). We played around with countless arrangements for our motors, in the end, we placed them the only way they fit with the rest of the robot and then figured out how to pass the movement from the motor to the spool axle. If you have further questions feel free to email us at brainstormers8644@gmail.com.
Could someone explain how their stone clamping mechanism works? I can't quite figure out how it keeps the stone parallel to the ground when rotating.
You can look up a few explanations of the virtual 4-bar mechanism such as ua-cam.com/video/LUvIH5k8HWY/v-deo.html&feature=emb_logo and ua-cam.com/video/C8Za5GKdSUA/v-deo.html&feature=emb_logo
@@Brainstormers8644 Thank you!
Kepler op
What do you use to keep track of the robot's location?
We use position tracking for tracking our location on the mat. As seen at: 2:33
what drive train motors are you guys using?
We use 4 Andymark Orbital 20 Gearmotors for our drivetrain
just as a note if the tape measure was touching the tower every block above the one it was touching would not count.
Yes. We know.