Posted by a reviewer on Amazon

I purchased this device to serve as a platform to create moving timelapse videos hyperlapses i needed a carriage that could carry a dslr battery and raspberry pi with a pwm motor controller and advance in a repeatable distance despite the state of the battery charge

Posted by a reviewer on Amazon

I tried to use the hall effect sensor data for this but sadly they arent matched from motor to motor so i get wildly different counts per the same motor settings

Posted by a reviewer on Amazon

If the mounts were metal this issue might not happen

Posted by a reviewer on Amazon

Finally it would be really helpful to get more documentation on the hall effect sensors and the circuit used as i had to do some trial and error to get them to work and am not totally sure that i have the optimum setup

Posted by a reviewer on Amazon

The tools included in the kit were often the wrong size or so cheap they broke or stripped on the 1st few screws

Posted by a reviewer on Amazon

The only real complaint i have is that the large bolts nuts for the wheels were not property threaded needed a tap die set to put right this being something not every person might have

Posted by a reviewer on Amazon

The online electronic assembly instructions were at best vague often just telling you to install a part with no mention of where or how

Posted by a reviewer on Amazon

Please note that the tank chassis featured on the dvd for this kookye tank electronic parts kit is not the exact same as the soldseparately xiao r geek big track robot chassis so youll have to be creative with installing the ultrasonic sensor servo motor