Antweight Spinner Bot

My second bot for Tinkersoc’s ant-weight robot wars.

TinkerSoc have now allowed destructive robots into their ‘ant weight’ robot wars. As before, bots have 150 grams’ weight limit and must fit within a 4” cubed box. To take advantage of this, I have decided to attempt to build a ‘spinner’ bot called ‘Rembrandt’.

Whereas ‘Orphan Black’ was designed to keep weight as low as possible, this robot utilises the full weight limit. As such, electronic control has moved to a more traditional RC setup with fail-safe. A brushless motor drives the main weapon - a 30 gram, welded, steel hammer arm; this in turn is driven by a 12A ESC that uses my own version of Simon K’s firmware.

The chassis uses a simple ‘A’ frame design and is produced on a hobby-grade FDM 3D printer - this allows me to keep more spare parts as I am expecting to incur more damage with this robot. The wheels are located on the outside of the robot and are made from neoprene with aluminium hubs. Whilst exposed wheels may seem like a dumb idea, it helps Rembrandt to counter the effect of the spinner weapon; I also use trimming to compensate the ‘gyro’ effect as the spinner accelerates.

Rembrandt is yet to be proved in battle and is still going through some minor design revisions to ensure its internals are as secure as possible, but hopefully it’ll put on a good show!