How much does your lift weigh, and what pulley diameter and motor ratio are you using to lift it? Also are you using RTP to hold height, or is the force required to backdrive the gearbox in brake mode enough to hold it?
We are using 2 gobilda 60 RPM motors with 40mm diameter spools. Honestly not optimal, but good enough. The lift is not heavy enough to backdrive the motors. What do you mean by RTP?
@@theclueless11212 I was asking if you're using RUN_TO_POSITION to have it hold the height. What do you feel is not optimal about it? By the way, how on earth does the robot fit under the skybridge if you used SAR340 (15.7") slides? I'm also intrigued by how they're connected together - we went with SAR230s, because the inner rail is threaded so they can simply be screwed together.
@@FTCFROGbots I'm pretty sure we arent even using motor encoders for the lift, we just give it power based on joystick position. We can disconnect the battery and the lift retains its position no problem. We are using 200mm SAR340 slides, which are about 8 inches. They are connected using both M2 screws and nuts and lots of double sided tape, which hasn't failed us. A larger spool is generally more efficient, and at low voltage it is very slow near full extension.
Let me know: is the robot a dinosaur or a beetle? Also, to make it clear, the video is only 1 minute and 20 seconds long-not the full teleop period. In the 2 minutes round we finished with 8 stones.
Is the platform that holes the stone before the claw grabs it spring loaded so it starts inside the 18*18? Why did you choose to grab the stone from front to back vs the sides or the top? It's my first year in FTC and I would love to know some of your thought processes and plans
yes, the platform is spring loaded and locked in at the beginning of the match. The less you move the better your robot, and a front to back design involves the least turning.
How much does your lift weigh, and what pulley diameter and motor ratio are you using to lift it? Also are you using RTP to hold height, or is the force required to backdrive the gearbox in brake mode enough to hold it?
We are using 2 gobilda 60 RPM motors with 40mm diameter spools. Honestly not optimal, but good enough. The lift is not heavy enough to backdrive the motors. What do you mean by RTP?
@@theclueless11212 I was asking if you're using RUN_TO_POSITION to have it hold the height. What do you feel is not optimal about it? By the way, how on earth does the robot fit under the skybridge if you used SAR340 (15.7") slides? I'm also intrigued by how they're connected together - we went with SAR230s, because the inner rail is threaded so they can simply be screwed together.
@@FTCFROGbots I'm pretty sure we arent even using motor encoders for the lift, we just give it power based on joystick position. We can disconnect the battery and the lift retains its position no problem. We are using 200mm SAR340 slides, which are about 8 inches. They are connected using both M2 screws and nuts and lots of double sided tape, which hasn't failed us. A larger spool is generally more efficient, and at low voltage it is very slow near full extension.
Let me know: is the robot a dinosaur or a beetle?
Also, to make it clear, the video is only 1 minute and 20 seconds long-not the full teleop period. In the 2 minutes round we finished with 8 stones.
It's definitely a dinosaur.
Dinosaur
Its a dino. no questions asked. it's also really cool.
A scorpion
its an armadillo
cool
Is the platform that holes the stone before the claw grabs it spring loaded so it starts inside the 18*18? Why did you choose to grab the stone from front to back vs the sides or the top? It's my first year in FTC and I would love to know some of your thought processes and plans
yes, the platform is spring loaded and locked in at the beginning of the match. The less you move the better your robot, and a front to back design involves the least turning.
What kind of linear slides do you use?
Barrett the Trombone misumi sar340
How is that robot in 18 by 18
its not in the video but it has to fold out at the beginning of the match
your intakes are so floppy I feel like that is not ideal but great looking robot
This is so cool! Could you collaborate with my team and mentor us? Thank you so much!
what team are you on?
@@rolanguang8760 green griffins