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Category: traxxas

Traxxas Gearing Chart

Traxxas Gearing Chart

    I can never find this exact gearing chart online when I need it, so I’ve taken a pic of the one that came with my Slash and uploading it here for posterity. Good for the Rustler, Bandit, and Stampede.  

Speed Run Number 2

Speed Run Number 2

Alright, after two years in this hobby I finally got my first Lipo battery.  Gee, what took me so long anyways?  Decided to skip 2S and go straight to 3S,  at 50C. Kept the same gears as the prior run to test how the battery change alone would compare, everything else being equal. Traxxas 2wd Slash Velineon VXL-3s ESC Lipo 3S 50C Battery 5000 mAh 27T 48P pinion 76T 48P spur     Conclusion:  Switching from NIMH to 3S 50C…

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Getting in to RC Car Speed Running

Getting in to RC Car Speed Running

    My first foray in to speed running.  These are my notes for posterity. I want to baseline my vehicle first, as I’ve been driving it for this last year, without any modifications for speed: Traxxas 2wd Slash Velineon VXL-3s ESC NiMH Battery 3000 mAh 23T 48P pinion 90T 48P spur Baseline Run:  30mph Experiment #1: Replace the pinion and spur to 27/76 and measure the speed. Result : 33mph Wow, interesting!  That was a huge bump in gearing…

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How to Read the Traxxas Radio PWM Signals using an Arduino

How to Read the Traxxas Radio PWM Signals using an Arduino

These are my notes on how to read the PWM servo signal coming from the Traxxas TQ receiver. Disclaimer: use this information at your own risk.  I am not responsible for any damage. RC car radio receivers communicate with the steering servo and electronic speed controller using electrical pulses called PWM(pulse width modulation).  Using an Arduino, we are able to capture  these pulses and print their values out to the Serial Monitor.  These numbers represent the width of the electrical…

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Controlling a Traxxas ESC with an Arduino

Controlling a Traxxas ESC with an Arduino

These are my notes for getting an Arduino Uno to control a Traxxas Velineon VXL-3s speed controller. Disclaimer: use this information at your own risk.  I am not responsible for any damage. Materials Needed Traxxas ESC Velineon VXL-3s Arduino Uno Stock Traxxas 7.2v battery Power cable First you need to connect one of the Arduino PWM(~) signal pins to ESC connector’s white lead).  Be sure it’s the ESC connector and not the steering servo, they look the same. Warning:  the…

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