Micah Carillo is a hobby machinist who aspires to be in the metal working trade, and enjoys creating working projects in his leisure. This model of a “hole boring bus” was built as a project to sharpen his skills while adjusting to an injury. Micah wanted to create a machine with both sliding and rotational movement. 

The rotational movement was inspired by gun actions, and the sliding movement is provided by a spring mounted underneath the carriage. When triggered, the boring head slides rapidly forward while spinning. The undercarriage is based on the body proportions of a bus and the boring head is akin to an actual tunnel borer. 

Exhibit added: January 31, 2019 - Last modified: May 23, 2023

Presented by The Joe Martin Foundation for Exceptional Craftsmanship