FTC Motors

 

Tetrix DC Motor v1 Specifications Datasheet

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Tetrix DC Motor v2 Specifications Datasheet

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CAD. Here.

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2012/13 Building for FTC with TETRIX – Hints and Tips Workshop Design & Build – TETRIX System Motor Systems

NXT Microcontroller

HiTechnic DC Motor Controller

DC motor(s)

HiTechnic Servomotor Controller

Servomotor(s)

10-cell battery pack

On/Off switch

Interconnecting wires

DC motor controller – up to 4 DC motors (in pairs)

Connection pair for PID loop control

Chains from NXT/other motor controllers

6423

 

4707                                            Lego Sub-systems NXT Motors

A robot is bale to move up to three servo motors at a time.

You can synchronize up to two motors so that your robot may move in a straight line.

The NXT servo motors have an integrated rotation sensor.

The speed of a motor can go up to 100-170rpm.

Additional LEGO motors can be added.

In order to add the extra motors, extra adapters and cables are need in order to maintain the motors stability.

Encoder & Motor Assembly

Description

The standard FTC Kit contains encoder and motor parts in four bags. Below is a step-by-step guide

to assembling them into a working unit. Assembling the encoders and motors is a preliminary step to completing the testbed assembly.

Materials Needed

Unpack DC motor and wires

Find the 2 bags containing the DC

motor and its wires and unpack them.

Unpack encoder, wires and collars

Find the 2 bags containing the encoder,

its wires and collars and unpack them.

Separate spacer & centering tools

Find and take apart the spacer installation

tool (black) and the centering tool (silver).

Separate optical hub & encoder

Find and take apart the optical hub

disk (silver, cross hatched) and the

encoder module (green and black).

Peel off encoder paper backing

Turn over the encoder module, and

peel off the paper backing.

Install collar

Slide the collar over the motor shaft

and secure it as near as possible to

the motor by tightening the set screw.

Slide centering tool over shaft

Slide the centering tool over the

motor shaft.

Set encoder module

Slide the encoder module over the

motor shaft sticky side down, so that

it goes around the centering tool and

presses against the collar. Press the

the collar.

Remove the centering tool

Use spacer/installation tool

Slide the spacer/installation tool onto

the optical hub disk and press down

module latching ears. This sets the

disk at the optimum distance from the

encoder module optics.

Remove the installation tool

Attach housing to encoder

together so that cover latches onto the

encoder module.

Plug in encoder wire unit

Plug in encoder wire unit so that it

matches the picture.

Slide housing over shaft

Slide housing over the motor shaft.

Line up the open rectangle of the

housing with the plug on the encoder module.

Attach housing to encoder

together so that cover latches onto the

encoder module.

Plug in encoder wire unit

Plug in encoder wire unit so that it

matches the picture.

Plug in motor wires

Plug in motor wires, being careful to

plug in the red wire to the port nearest

the + sign on the motor, and the black

wire to the port nearest the .