Robotic Painter Prototype
Final Report 9/14/2010
Ryan G. Rosandich, Ph.D.
Department of Mechanical and Industrial Engineering
University of Minnesota Duluth
The Problem
Placing messages onto the roadway surface
including stop-walk messages or left or right turn arrows
is accomplished using stencils and rollers.
Can a robotic message painter be developed whereby
messages could be applied automatically from an operator
position?
Design Process

First student design team
 Fall
semester 2009
 Mechanical structure design
 Fabrication

Second student design team
 Spring
semester 2010
 Paint delivery system
 Linear motion components
 Power 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 pump
 Graco
Magnum X7
Linear Motion Components

Techno-Isel Voyager
Belt Slides
 Servo
motors
 Gear boxes

Galil Motion Control
 Control
board
 Servo 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 Safety
 Fewer
workers, less time exposed
 Operated from a distance

Improved Productivity
 Single

operator, faster painting
Improved Flexibility
 Not
limited to standard stencils
Questions or Comments?