FIRST Tech Challenge Sizing Tool

Used to change motor to axle motion 90 degrees. This can be used in between the U-channel.

Specifications:

• Material: Steel
• Number of teeth: 30
• Set of 2 for 1-1 drives
• Step File

The NeveRest 40 is a gearmotor with an attached encoder. The output shaft geometry and the gearbox housing diameter is similar to what FTC teams are familiar with. The shaft is a 6 mm D and the gearbox housing is 37 mm diameter.

FIRST Legality:

• According to the FIRST Tech Challenge Game Manual Part 1, Rule RE10, this is legal for the 2020-2021 FTC Game. 
• According to the FIRST Robotics Challenge Game Manual, Rule R27, this is legal for the 2020-2021 FRC Game as it uses the NeveRest am-3104 motor.

Encoder:
There is an encoder mounted to the backside of this motor. It is a 7 pulse per revolution (ppr), hall effect encoder. Since the motor's gearbox has a 40:1 reduction, then the NeverRest 40 output shaft provides 280 ppr.

Encoder Cable Options:
NeveRest motors do not come with an encoder cable as we offer 3 cable options: 

am-3926a allows you to connect the encoder directly to the FIRST Tech Challenge REV Controller.

am-2992 has the 4 encoder pins joined in one housing using standard 0.1" spacing.

am-2993 allows you to break out the 4 pins separately if you need them in a different order.
Working with the Encoders:

• https://ftc-tricks.com/dc-motors/
• https://www.youtube.com/watch?v=d0liBxZCtrA

Performance Specs:
Force Needed to Break Gearbox: 1478 oz-in
Time to Failure at Stall: 2 minutes, 54 seconds
Motor Case Temperature at Failure: 190 degrees F

Specifications

• Back Drive Force: 12.800 in-oz
• Connector Type: JST-VH-2, Anderson Powerpoles
• Free Current: 0.5 AMPs
• Gauge: 18 AWG
• Gear Material: Steel
• Material: Steel with Plastic Encoder Housing
• Maximum Diameter: 1.500 in. (38 mm)
• Maximum Power: 14 Watts
• Mounting Geometry: 6 M3x0.5 in. on a 1.220 in. (31 mm) Bolt Circle
• No Load Current: 0.4 AMPs
• No Load RPM: 160 RPM
• Output Shaft Size: 0.240 in. (6 mm) D Shaft
• Overall Length: 5.250 in.
• Poles Per Magnet: 7
• Ratio: 40:1
• Shaft Hardness: 45-50 Rockwell C
• Stall Current: 11.5 AMPS
• Stall Torque: 350 oz-in
• Ticks Per Revolution: 1120
• Voltage: 12 Volts DC
• Weight: 0.767 lbs

The NeveRest Orbital gearmotor is a robust planetary gearmotor designed for FTC. With many ratios to choose from you can find the right motor for you, from a fast spinning intake to a high reduction arm, all are possible with NeveRest Orbitals. They have a pre-installed encoder and an output shaft directly in the center of the output face. The shaft is a 6 mm D and the gearbox housing is 37 mm in diameter.

• 42.0mm*42.0mm*11.3mm thick
• 16*M3*8.0mm thread
• M3 pass through holes
• SHCS sit flush
• Material - AL6061-T6

The Motor Mount Plate is used with the Maverick 12V DC Gear Motor  (Part# 75001) to attach it inside the anyone of the U Channels 76010 to 76018. This is an example of a chassis with 4 motors mounted inside the U-Channel using a Motor Mounting Plate.

• Step File