Robot Arm C

[RJohnson]

I did turn it to 6 volts. It's only the 805bb that doesn't work. I have mg995s that work. When the 805bb runs it barely draws any current.

Did you establish common ground with the control board? This affects some servos more than others..

[windu34]

Hey guys,

My partner and I bought a Lynxmotion arm complete with servos, circuit board, and everything. We bought a wrist rotate attachment to go with it, so would that count as a "modification?" Also, would you think that a wrist rotate is enough to flip a few stacks over, or are there any more efficient mechanisms to turn the pennies tail side up? At the moment, I was thinking about transporting penny stacks in bulk by picking them up at the bottom and then knocking them over in the middle of the target, but I'm not sure if that's efficient enough.

Thanks.

Yes. I would agree that would be the best method.

[Bluejet1179]

I did turn it to 6 volts. It's only the 805bb that doesn't work. I have mg995s that work. When the 805bb runs it barely draws any current.

Did you establish common ground with the control board? This affects some servos more than others..

Yeah I did it kinda runs but it barely has torque. It acts like it has no current. I measured current going to the servo and it was like 0.05mA which is not enough obviously.
Right now I have the batteries in parallel going into the regulator and coming out of the regulator is the wires going to the servo directly. The ground wire also connects to the Arduino ground. The Arduino is currently powered by my laptop.

[windu34]

I did turn it to 6 volts. It's only the 805bb that doesn't work. I have mg995s that work. When the 805bb runs it barely draws any current.

Did you establish common ground with the control board? This affects some servos more than others..

Yeah I did it kinda runs but it barely has torque. It acts like it has no current. I measured current going to the servo and it was like 0.05mA which is not enough obviously.
Right now I have the batteries in parallel going into the regulator and coming out of the regulator is the wires going to the servo directly. The ground wire also connects to the Arduino ground. The Arduino is currently powered by my laptop.

You are certain you set the regulator correctly? Did you measure the output of voltage and current from it?

[Jdoglloyd]

Hey guys,

My partner and I bought a Lynxmotion arm complete with servos, circuit board, and everything. We bought a wrist rotate attachment to go with it, so would that count as a "modification?" Also, would you think that a wrist rotate is enough to flip a few stacks over, or are there any more efficient mechanisms to turn the pennies tail side up? At the moment, I was thinking about transporting penny stacks in bulk by picking them up at the bottom and then knocking them over in the middle of the target, but I'm not sure if that's efficient enough.

Thanks.

Yes. I would agree that would be the best method.

Thanks so much for your help

[Bluejet1179]

Did you establish common ground with the control board? This affects some servos more than others..

Yeah I did it kinda runs but it barely has torque. It acts like it has no current. I measured current going to the servo and it was like 0.05mA which is not enough obviously.
Right now I have the batteries in parallel going into the regulator and coming out of the regulator is the wires going to the servo directly. The ground wire also connects to the Arduino ground. The Arduino is currently powered by my laptop.

You are certain you set the regulator correctly? Did you measure the output of voltage and current from it?

It was reading the correct voltage but like no current. 0.05mA

[windu34]

Yeah I did it kinda runs but it barely has torque. It acts like it has no current. I measured current going to the servo and it was like 0.05mA which is not enough obviously.
Right now I have the batteries in parallel going into the regulator and coming out of the regulator is the wires going to the servo directly. The ground wire also connects to the Arduino ground. The Arduino is currently powered by my laptop.

You are certain you set the regulator correctly? Did you measure the output of voltage and current from it?

It was reading the correct voltage but like no current. 0.05mA

Did you have solid connections? Was the wire gauge appropriate? Can you post a pic of your setup?

[Bluejet1179]

You are certain you set the regulator correctly? Did you measure the output of voltage and current from it?

It was reading the correct voltage but like no current. 0.05mA

Did you have solid connections? Was the wire gauge appropriate? Can you post a pic of your setup?

I can't get a pic RN but I am using a breadboard with standard jumper wires.

[peartree423]

Hey Bazinga+

Have you been able to complete your second design? Your first one looks really great, and I'm just curious if you've been able to top it with an updated design

-peartree423

[Bazinga+]

Hey Bazinga+

Have you been able to complete your second design? Your first one looks really great, and I'm just curious if you've been able to top it with an updated design

-peartree423

I'm still working on it and hope to have it fully operational by MIT.