Watts

A microprocessor controlled cap gun. On each button-press two timed pulses of electricity are sent to a motor assembly, turning it forward for a fraction of a second then reversing it. The motor assembly tightens a modified bike brake cable that feeds into the grip of a toy cap gun. The cable pulls and releases gun's trigger, which then fires off a cap.


image

Despite my best efforts and several modifications to the motor assembly to reduce wear on the cable, it snapped a few hours after being installed in the gallery.

image

First version of the cap gun.

image

Second gun with improved trigger assembly.

image

First gun installed.

image

Second gun installed.

image

Circuit controlling the motor assembly. An Arduino waiting for a button press to switch three relays via mosfet transistors.

image

Early crude trigger assembly.

image

Installing the relays.

image

Close-up of the motor assembly.

« Back to the front page