fstab options for mounting drive
Posted inComputing & Networking Mechanical

How to Mount an External Removable Hard Drive on a Robot

We often want to add an external hard drive to our robots in order to have a dedicated drive for data collection. Having the dedicated drive lets the primary drive remain uncluttered, have less wear-and-tear, split logging between drives for performance, and potentially be a larger spinning disk (as opposed to an expensive SSD). It is also useful when the…
drive kinematics
Posted inSoftware & Algorithms

Drive Kinematics: Skid Steer & Mecanum (ROS Twist included)

Hi all I am often in need of the basic kinematic motion equations for skid steer vehicles. I have also recently been working with mecanum wheeled vehicles. The skid steer equations are fairly simple and easy to find, however I will include it in different versions and include a ROS approach. The mecanum wheel equations are harder to find and…
Copley controller
Posted inElectrical & Electronics

Copley Motor Controller Review

Update: Click here to learn how to configure Copley motor drivers Hi allThis is a post about the Copley Controls motor controllers. For this review I will be using a ACJ-055-09 (55Vmax and 9Apeak) motor controller (I love when product names mean something useful) with a 3 phase DC brushless motor. This is a good controller for distributed motion control.Copley…