675C Robotics Update Thread

Update 7/15/18. Trying out a new design to power the puncher, and what angles puncher with 1 motor. So far, it works really well

Tell us what you think

That is an amazing mechanism. How does it slide over when you change its direction?

@MannanG the motor is powering a 12t gear, which is driving a 36t gear. Since those 2 gears are fastened together by lockbars, and not connected to anything else, running the motor will cause the 2 gears to swing in the direction of the motor. This mechanism will swing until the 36t gear hits another gear, then causing it to act like a normal gear train.

Nice

That is extremely smart. Great job, and I believe that mechanism will be an amazing game-changer in competition with being able to change the shooting angle using only a single-motor puncher.

@MannanG Thank you very much!

Won’t the puncher fire whenever you change angles?

That 36t gear is not going to last long

Very nice work!

Not if there is a simple ratchet attached. You just make sure the slip gear is only ever able to rotate one direction.

I don’t see a ratchet attached to that or am I missing something? People are getting better at concealing powerful designs lol.

There could be something somewhat beneath the motor. But note that he hasn’t attached the rubber bands yet, so he’s certainly not finished. The lack of rubber bands is why it doesn’t snap back when changing angles in the video; so we’re assuming there will be more attached to this. So even if there isn’t yet a ratchet, that doesn’t mean there won’t be.

Don’t make a new thread for every update, it’s basically spam now.

+100

Having a centralized thread with all of the videos in one location will make it easier for users to navigate your updates for ideas. It is what 2381X did, and it works really well.

Probably, but it is still worth it to try the design out

This hasn’t happened before because we make sure that the puncher is resting on the stopper in the front before changing the direction of the motor. Since the video was made, we have tested out the puncher a lot, and there weren’t any issues with the puncher misfiring. @callen @NightsRosario We have thought about putting a ratchet on the slip gear, but the only reason we haven’t done it yet is because we didn’t need it.

Sorry for making multiple threads. @Dromeda we will probably make 1 thread for all videos

Leeks:)

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That looks very good. How well does the switching work?

So far, the gear switches smoothly. We tested it out many times, and the gears are still in very good condition.

Also, how do you prevent the thing from changing it’s angle when you switch to shooting? Is it just a super high friction joint?

If you look near the point of rotation for the puncher, you can see a 4 bar. What we did what put rubber bands inside the channel kind of like how you would rubber band a lift. This way, the puncher can rest at any position. Also, we did make the joints a little tight so the knock back of the puncher doesn’t change the angle while shooting