This chunk of aluminum is a leftover part from an automotive adapter plate.
The customer, Todd Perkins, wants to use it for the oil tank in a lightweight hybrid motorcycle (more info below). We use Fusion 360, the Tormach and some creative fixturing to shell out the part!
More on the Motorcycle Project:
The project is based on one of Nic’s Ythos Motorbikes chassis. The goal for the bike, beyond being a totally insane street chopper, is to be a thoroughbred straight line race bike; ultimately with a 400hp/400lb, 1:1, power-to-weight ratio. End goals there are ~8-sec 1/4 mile ETs, and 200+mph top speed. Power will come from a proprietary fuel-electric hybrid drive system. The fuel part is an ethanol burning 96 cu-in/1600cc American V-twin, that will be nitrous-injected to reach the desired end goals. Instead of a convention transmission, Scrape runs an AC electric motor, capable of 100 lb-ft of torque from 0 rpm, that will accelerate the bike from a standing start until the V-twin phases in and takes over. One speed, twist and go, from 0 to whatever. It will also be able to re-charge its small battery pack on the fly, via the power of the V-twin and regen capability of the AC motor; or plug in and charge.