Robotic Painter Prototype

Final Report 9/14/2010

Ryan G. Rosandich, Ph.D.Department of Mechanical and Industrial Engineering

University of Minnesota Duluth

The ProblemPlacing messages onto the roadway surfaceincluding stop-walk messages or left or right turn arrowsis accomplished using stencils and rollers.

Can a robotic message painter be developed wherebymessages could be applied automatically from an operator position?

Design Process First student design team

Fall semester 2009Mechanical structure designFabrication

Second student design teamSpring semester 2010Paint delivery systemLinear motion componentsPower and air supply

Students Involved

Ryan Bowlds Matt Erickson J. T. Gaige Chad Hoel Kenn Houk

Nathan Kurlinski Tyler Stusynski Ben Waldera Kyle Woodley

Paint Delivery System

Single paint head due to cost ($500+)Graco AL Airless gun

Electric airless pumpGraco Magnum X7

Linear Motion Components

Techno-Isel Voyager Belt SlidesServo motorsGear boxes

Galil Motion ControlControl boardServo amp

Power supply

Power and Air Supply

Air Compressor Portable Generator

Finished Product

Operator Interface

Specifications

Paintable area 98 in. x 47 in. (2.5 m x 1.2 m) Painting speed 12 in./sec. (300 mm/sec) Painting width 4 in. (100 mm) Paint pressure 2500 psi (17.5 MPa) Air pressure 80-100 psi (.56-.70 MPa) Max power demand 3000 W Single operator

What We Can Paint

Letters: A-Z Words: STOP SLOW TURN XING Arrows: straight, right, left, combos Symbols: RXR, handicap, bike

Some Results

What is left? Comprehensive final report Future developments Future applications

Budget Status

Paint delivery above budget Mechanical structure below

budget Electrical and controls on

budget Salary below budget Total project below budget

Expected Benefits

Improved SafetyFewer workers, less time exposedOperated from a distance

Improved ProductivitySingle operator, faster painting

Improved FlexibilityNot limited to standard stencils

Questions or Comments?