03 Dec

ROS and Keras

Eun Sang 'Jesse' Cha

This blog is a bit technical, but here it goes. The last blog focused on the write up side of my project, but this time, I will focus on how I attempted to replicate my 1/8th scale autonomous RC car results for my 1/32 scale vehicles. -Data Collection- The image above is an image straight fro...

24 Nov

Prelab Write Up and Experiment Setup

Eun Sang 'Jesse' Cha

This week was mostly focused on writing a prelab report and setting up the experiment for the data collection. Prelab : A prelab report for the experiment was written so that all the project team members and I could prepare for the professional RC driver to stop by and collect data. Optitrack Mo...

06 Sep

Mastering Wheel Encoding with Jesse

Eun Sang 'Jesse' Cha

Hello Folks! This time, I am going to blog about my adventures with wheel encoding. I had a few problems (as usual) but solved it as I always do. The IR sensor I used was from Pololu, and I had to CAD out the encoder mount so that the rear wheels of my RC vehicle could be properly measured for wheel...

25 Aug

Mastering RC car vehicle/tire modeling with Jesse.

Eun Sang 'Jesse' Cha

I had a lot of fun trying to figure out how to model the vehicle dynamics and tire properties of my RC car. Here is my full list of references. Race Car Vehicle Dynamics by William F. Milliken and Douglas L.Milliken Vehicle Dynamics: Theory and Applications, Vol 1,2,3 by Reza N. Jazar Vehicle...

18 Aug

Mastering PWM with Jesse

Eun Sang 'Jesse' Cha

Pulse Width Modulation, or PWM for short, is a useful signal used to control servos, electronic speed controllers(ESC) and LED lights. It is an essential arsenal for any roboticist. This blog will be about my adventures with PWM signalling. Along the way, I sprinkle my pro tips. I initially assumed...

16 Aug

Best Practices for 3D Printing with Jesse

Eun Sang 'Jesse' Cha

So you want to 3D print some parts, and they need to look nice in addition to being functional. Here are some tips from Jesse. Try to make sure that the print has minimal overhangs. This can be done by breaking the large print into smaller pieces. Try using painter's tape on the heat bed of the...

06 Aug

Jesse's First Blog: 3D Printer Woes and 3D Printing Parts for the Scaled Platform

Eun Sang 'Jesse' Cha

Last week, I was able to buy an Ultimaker 2 off of Ebay from an auction. Unfortunately, there were several issues with the printer, making it unfit for quality printing. Two out of the three plastic printhead blocks are broken or cracked; this is NOT something that happened during shipping, becaus...

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