This portfolio document summarizes Dave Duff's work from 1985-2006. It includes summaries of 14 projects involving prototypes for consumer products, sculptures, and robots. The projects utilized various materials and manufacturing methods like machining, casting, 3D printing, and CNC machining to create functional prototypes and artistic pieces. The portfolio demonstrates Duff's versatility in both mechanical design and advanced prototyping techniques over a 20 year period.

1. PORTFOLIO
Dave Duff
1985 – 2006

2. Tea Set
Hand raised sterling silver with walnut handle and finials
1985

3. Faucet Appearance Prototype
Machined, hand carved and painted
prototyping resin
1994
Digital Camera Appearance Prototype
Machined, hand carved and painted
prototyping resin
1994

4. Vodka Shot Glasses and Tray
Hand modified glasses and welded aluminum
tray with black beans 1995
Wedding Goblet
Hand raised sterling silver bowl and base Brandy Snifters and Tray
with lost wax cast stem Modified snifters and plywood and aluminum
1995 tray with heatable stones 1995

5. Silver Dixie™ Cup
Crimped fine silver pre-form
And final pressed cup and tooling
1995

6. Light Sculpture
256 lights on individual wires
controlled by M6811 processor
1995

7. Ice Cream Maker
Hand built from salvaged water
cooler, tubing, and sheet metal
1996

8. simbots
Group of six robots with ultrasonic
tracking to demonstrate robotic
group behavior
1996

9. Submersible Light Fixture,
MiniShooter™, and SuperShooter™
for WET Design/Bellagio Fountain
Cast bronze, spun stainless and
aluminum, machined and plasma cut
stainless, electrical components, etc.
1998

10. Submersible Light Fixture
for WET Design
Cast bronze, spun stainless
and aluminum, cord, etc.
1998

11. Night Vision Scope Bracket
Plywood and hose clamp, SLA, CNC
aluminum and stainless
2004

12. Angle Slope Level Indicator
Magnetically damped, nitrogen filled, sealed
Aluminum, polycarbonate, Santoprene, +
2006

14. Modrobots: self reconfiguring and
manually configured versions of
modular reconfigurable robots
1998-2002

15. Modrobot: Manually reconfigurable Modrobot: Self reconfigurable
module G1 module G2
Hobby servo, laser cut stainless and BLDC gear motor; CNC, wire EDM,
ABS, PIC processor, custom NiMH injection molded, screw machine,
battery pack and chem etched parts
2000 1999

16. Modrobot: Self reconfigurable module G3
BLDC motor; planetary and harmonic two
stage gear box; CNC, injection molded,
screw machine, and chem etched parts
2001

17. Modrobot: Self reconfigurable robot
module G3
BLDC motor; planetary and harmonic
two stage gear box; CNC, injection
molded, screw machine, and chem
etched parts
2001

18. Modular paper moving fixture
Cast urethane, SLA, CNC and screw
machine parts
2001

19. Modular paper moving fixture
Sheet metal, injection molded plastic,
extruded, CNC and screw machine parts
2003

20. Modrobot: Self reconfigurable robot G2
1999