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).

The design of the KRZ04 was done in OnShape, with several variations on the front end.

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

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

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


! Status

* 2025-08-29: project build begins