What follows are notes from the build of the __[[KRZ04]__, a Mecanum-wheeled robot, the successor to the [[KRZ03].

It uses parts from the [[KRZ03] robot but a new chassis and wheels from goBILDA. The most recent version is using a Raspberry Pi Zero 2 W, four JGA25 brushless motors with internal controllers, and TinyFX (for LEDs and sound effects).

[[{Image src='attach/KRZ04/krz04-initial.jpg' width='1000' caption='The KRZ04 robot' align='center'}]

This photo shows the first build of the chassis, the day the parts arrived in the post.