This build isn’t fully DIY, as the mecanum wheels appear to be off-the-shelf items, but the rest of the project makes up for this. If you need to make your own, it’s hardly as though there ...

As many people have learned, DIY robot arms are pretty difficult. [Dan]’s arm has the additional complexity of being 3D printable with the ambitious goal of managing a 2kg payload at 840mm of reach.