Donations Made to Wounded Warrior Project

I'm sending the money collected during my thesis exhibition to the Wounded Warrior Project. The receipts generated by the prototype are the result of hundreds of interactions – some donations as small as twenty five cents. It's easy to imagine the results from a larger scale installation if the exhibit was installed in a high traffic location or if the donations were matched at a higher ratio by an outside organization.


Prototyping: Donation Mechanism Money Drop

I built this little contraption to test the weight limit of the stepper motor. My donation box will accept bills and coins so I need to know if the motor can hold position when multiple coins are added. This stepper motor and pulley system allows me to move the axis of rotation to the center of the box which is critical since the lid will need to tilt inside the acrylic canister with very little tolerance for forward / backward movement.