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Base Motors Problem

1. 9 months ago

Team 9551B

10 Feb 2018 Idaho 9551 A

Hello everyone who looks at this. My team is having a huge problem with our base. We have a 4 speed motor base. Our robot weights just under 21lbs. But the gears inside the motors are breaking, as seen in the photos I have attached. Just wondering if anyone has had the same problem and knows a solution. In the comp we had yesterday the very last match, finals 1-2, the motors started to make a really back clicking sound from our base. Any help would be nice. Thank you in advance.

2. Dokkaebi

10 Feb 2018 Deal with it I like chocolate

Your robot is WAY too heavy. The inertia that the robot is trying to counter then changing directions is causing that.

3. Xenon

10 Feb 2018 long beach 99999V

that really doesn't look good. is there a lot of weight put on the motors, or on the shafts connected to the motors? that might have something to do with it. if not, It could be from particles inside the motor, or the gear interlocking with the broken ones have been damaged? or just try greasing the motor gears.

4. Team 9551B

10 Feb 2018 Idaho 9551 A

My team was thinking of use the clutches, but how good do they work?

5. Dokkaebi

10 Feb 2018 Deal with it I like chocolate

@Team 9551B My team was thinking of use the clutches, but how good do they work?

Do not use those. Your robot needs to shed a few pounds

6. Team 9551B

10 Feb 2018 Idaho 9551 A

How many pounds do you thing we need to shave?

7. Dokkaebi

10 Feb 2018 Deal with it I like chocolate

Your robot shouldn't weigh more than 18 lbs, but you should try for 17 or 16

8. The Programmer

10 Feb 2018 New York 53999C

@Team 9551B I suggest switching parts of the frame to aluminum. It made our bot much lighter. Just make sure the base is still heavier so you don't tip.

9. Team 9551B

10 Feb 2018 Idaho 9551 A

@The Programmer Our whole robot is made of aluminum

10. ranOOm

10 Feb 2018 Ottawa, Ontario, Canada 2381

@Team 9551B @The Programmer Our whole robot is made of aluminum

what kind of bot do you have?

11. Team 9551B

10 Feb 2018 Idaho 9551 A

@ranOOm We have a 4 motor base (speed), 1 motor MG lift 1:9 (torgue), 4 motor DR4B (torque), 2 motor chain bar 3:5 (torque), and a 1 motor claw (torque). our whole robot is 20.4 lbs

12. ranOOm

11 Feb 2018 Ottawa, Ontario, Canada 2381

@Team 9551B @ranOOm We have a 4 motor base (speed), 1 motor MG lift 1:9 (torgue), 4 motor DR4B (torque), 2 motor chain bar 3:5 (torque), and a 1 motor claw (torque). our whole robot is 20.4 lbs

Are you using two bearings on each axle of the drive? and are the motors under any pressure from the shafts?

13. Team 9551B

11 Feb 2018 Idaho 9551 A

We do use 2 berrings and the motors are not pressure. We believe it is from the inertia of driving around. Was just wondering how we could fix this problem.

14. Dromeda

11 Feb 2018 A place Who needs a number right?

I'm sure an image of the bot (specifically the base) would help...

15. Team 9551B

11 Feb 2018 Idaho 9551 A

@Dormeda I don't have one now but i can put some up monday. As i have to replace those gears on monday.

16. Joshua_L

11 Feb 2018 Virginia

My robot is also 20 lbs (all aluminum). From my experience, dont use 4 HS motors for base. Stick to torque. Kinda slow but stability over speed.

17. Joshua_L

11 Feb 2018 Virginia

You could also try doing a 2 motor dr4b and a 6 motor HS drive. That woukd work.

18. [SPR] JP

11 Feb 2018 Texas PANDA

or a 5 motor HS drive...

19. Dokkaebi

11 Feb 2018 Deal with it I like chocolate

@SkinnyPanda Robotics or a 5 motor HS drive...

Stop

20. [SPR] JP

11 Feb 2018 Texas PANDA
Edited 9 months ago by [SPR] JP

@Dokkaebi Stop

Only if i can call you Mr. or Mrs. Chocolate