Changes between Version 25 and Version 26 of ElectricalFrcIntroduction


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Timestamp:
Oct 16, 2019, 1:38:11 AM (6 years ago)
Author:
David Albert
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  • ElectricalFrcIntroduction

    v25 v26  
    3333FIRST has a long [https://firstfrc.blob.core.windows.net/frc2017/2017-motor-information.pdf list of motors] that are legal to use in FRC Robots.  The list includes loads of detail and many different kinds of motors.  Some of the most commonly used motors are the RS775, CIM, and mini-CIM motors.  All of the FRC-legal motors operate on 12VDC.  Different motors offer different sizes, weights, speeds, and torque (turning strength).  The more force a motor generates, the more electrical current it will consume.  When designing a robot it's important to choose the right motor for the task and it's important to make sure all of the motors that may be operating at the same time won't overload the battery or electrical wiring.
    3434
    35 [[Image(http://www.robotshop.com/media/catalog/product/cache/1/image/900x900/9df78eab33525d08d6e5fb8d27136e95/2/5/25-cim-12v-5310-rpm-brushed-dc-motor.jpg,20%,nolink,title="CIM Motor")]] [[Image(http://www.robotshop.com/media/catalog/product/cache/1/image/900x900/9df78eab33525d08d6e5fb8d27136e95/r/s/rs-775-motor-6070rpm-12v-10oz-in.jpg,20%,nolink,title="RS775 Motor")]] [[Image(http://cdn3.volusion.com/vyfsn.knvgw/v/vspfiles/photos/am-2235-2T.jpg?1442240393,20%,nolink,title="snow blower motor")]]
     35[[Image(CIM_Motor.jpg,20%,nolink,title="CIM Motor")]] [[Image(RS_775_Motor.jpg,20%,nolink,title="RS775 Motor")]]
    3636
    3737Most FRC motors were designed for other commercial purposes (wheelchairs, snowblowers, power tools, car windows or seats, etc.) so they are widely available and relatively inexpensive.  The most powerful legal motor is the CIM motor (CIM is an acronym for CCL Industrial Motors - the manufacturer of the motor).  CIM motors are capable of [http://files.andymark.com/CIM-motor-curve.pdf generating 300W of force] and were designed for motorized wheelchairs.  FRC rules usually allow a maximum of 6 CIM motors per robot and 4 usually power the drive system (wheels/treads) where the robot needs both speed and power.  FRC rules usually do not limit the number of smaller motors (mini-CIM, micro-CIM (aka Bag), RS775, etc.) that can be used.