Wednesday, May 6, 2009

ESC Rooster Crawler

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ESC Testing ... izzit ZERO DELAY ? ... yes it is in some ways...

Arduino Testing with Timer2 interrupt with Servo.h function
50.0Hz - Arduino (0.5 to 2.5ms)(0-180)
51.0Hz - 27MHz transmitter (1ms to 2ms)(Forward to Reverse)

Friday, May 1, 2009

ESC Rooster Crawler TeamNovak

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"Good" ESC on theory,
come with Zero Reverse Delay, and a 5A 6V regulator.
most important it has a Built-in Li-Poly Cutoff Protection at 6V :D

claim to have peak 400A drive and 200A brake...
just hope it works with my PIC18F6722... hmm ... :D

Crawler DC Motor

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they are primary use in RC world Crawler vehicles. But i guess it is good enough for my Sumo Robot.

RPM: 3350 fwd, 3300 Rev
Turn: 130T
Dimension: 56mm Length, 36mm Dia
Shaft length: 11mm

Team Atlas Rock Climber Series (AT7-153)
No load Amp: 0.45A
Stall Torque: my guess is about ~150mNm
Terminal Resistance: 1.1~1.2ohm
Weight: 165~170g

M3 bolt at 25mm Dia

Sumo Robot CAD

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Simulation done using Solidworks 2009