Tag: motor

Zip-Tie Those Motors

Here’s a tip from the experienced teams: remove all the screws from your robot’s motors, and instead hold it all together with a large zip tie. This method allows super-fast swapping out of motors and gears, and allows quick access to cool down your motors in between matches.

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Competition Inspection: PTC Test

VEX Worlds and certain local tournaments include a “PTC test” on robot motors to ensure they have not been illegally modified. Here’s the details.

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Motor Ports 1 & 10 – Way Different!

Today I want to relay some more useful information from the awesome jpearman on the VEX Forum regarding motor ports 1 & 10 that will affect the way you’ll want to allocate ports in your robot design. I seem to be writing encyclopedic posts lately, so here’s today’s table of contents: Inside the cortex: 2 CPUs […]

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What is slew rate? A good thing to know.

Slew rate refers to a programming method to slowly increase the power to a VEX motor, in measured steps over a set period of time, to reduce the possibility of current spikes which can trip the motor’s internal circuit breaker.

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Motor Overload

My final post for this Thanksgiving weekend. I think that being able to identify motor overload is one of the more useful things that a coach or mentor can do, as it often points to a design flaw — and the sooner those can be identified, the better!

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VEX Motors

In response to a Facebook request, I’ve made a deeper dive into how motors work. Here is an explanation of voltage, current, torque, and speed in layman’s terms.

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Motor Gears

Don’t be afraid to open up your motors to check out the gears when things don’t sound right. Here’s a primer on what you’ll find when you open up a VEX motor and how to figure out if there’s something wrong.

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Motor Ports: Spread Out the Load

Spread out your motors across motor ports 1 through 10 for best performance.

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What Are Motor Controllers?

Why do some motor ports on the cortex have 2-prong plugs and some have 3-prong plugs? What are those little plastic doo-dads that connect the motor to the cortex? How do they work? When do I need them? Read on for a short primer on motor controllers!

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