Hacking Motors?

Community General Discussions
1

Dear: LMR

You should know that recently my Poppet came in the mail after my dad backed Jayden Edwards off kickstarter. So anyways I decided to turn my Poppet into a self navigating Poppet. Because of that I need to replace the servos off of the Poppet. The Poppet servos aren't accurate enough to measure degrees so I need knew ones.

First of all I'd like to apologise for taking apart the servos without going to you guys first. The reason for that is I had no idea what I was doing but thought I was. You see I read from a book that if you take the potentiometer out of a non-continous rotation servo it would be continous rotation. Apparantly I was mostly wrong. I was right to remove the pot but not the other gears. I have no idea how to put the servo back together and I am trying to do my best. Here are some pictures.

Snapshot_20150403_3.jpg

Here is the potentiometer I crimped out of the servo.

Snapshot_20150403_2.jpg

Here is the motor and where the gears are attached.

Snapshot_20150403_1.jpg

Here are some of the gears.

Snapshot_20150403.jpg

And here is the top frame of the servo.

Just to let you know I am using DGServo 12g can you please help me? Thank you.

From: Noah

2

Continuous rotation servos
Continuous rotation servos can’t track angles, precisely because they don’t have the pot. Instead of going to a certain position and stopping there, like regular rc servos, they will keep on rotating with different speeds, depending what angle you send to them. So replacing the motors in your popet with CR servos gives you nothing.

What you actually need to have precise control are encoders, so that you can track in what position the wheels are.

3

Thank you I do need encoders.

Dear: Deshipu

Thank you. Which encoders do I need and how should I use them. I will go with that.

From: Noah

4

Modifying Servos for Continuous Rotation

Does it help ?

https://learn.adafruit.com/modifying-servos-for-continuous-rotation/overview

5

Hey nice tutorial. I wish I saw it earlier when I took it apart.

Dear: Fpictor

Hey nice tutorial. I wish I saw that earlier right before I took those servos apart but anyways very cool and thank you.

From: Noah