2018 Mousetrap Vehicle

Event At a Glance

VA ModificationsNone
Eye ProtectionB
Natl Mousetrap Vehicle Page


Teams design, build and test a vehicle using one, or two, snap mousetraps as its sole means of propulsion that can push a plastic cup forward, reverse direction, and come to a stop behind the start point.

Building Event Policies

Event Rules

Download Rulebook



During our tournaments, VASO will enforce only those clarifications issued by VASO; National clarifications and FAQs will not be valid in Virginia tournaments. For the State Tournament, the last day to submit clarification requests is March 28 and VASO will post all outstanding clarification responses, with the exception of any specific room dimensions required by the rules, by midnight, March 31. Room dimensions will be posted as they become available, usually two weeks before the tournament.

VASO Clarifications

Mar 18, 2018 Rule 3.e. - Must dowels be wood?
A non-wooden dowel is allowed if all other dowel criteria are met and it functionally breaks the laser beam.
Nov 9, 2017
Rule 3.e. - An approximately ¼” diameter or larger round dowel must be attached to the vehicle approximately perpendicular to the floor. The bottom of the dowel must be ≤ 1.0 cm from the track’s surface and must be easily identified by the event supervisor.