Early Works (View All)


Untitled, 1968
Plywood, felt, aluminum 
60" x 54" x 4.5"

Untitled, 1968
Plywood, foam rubber, aluminum
2' square

Untitled, 1968
Foam rubber, aluminum
6' x 4' x 2'

Untitled, 1968
Plywood, masonite, carpet, casters
66" x 40"

Untitled, 1968
Aluminum, rubber hardware, rubber
Extend to 20'

Untitled, 1968
Aluminum, foam rubber, hinged paint rollers
Extends to 64"

Untitled, 1968
Red sponge rubber, alloy tubing, rubber handle
Rubber, 18” x 24”

Untitled, 1968
Red sponge rubber, vinyl, steel cable, hardware
18"X 24", size adjustable

Untitled, 1969
Aluminum, vinyl, suction cups, cable 
33" W

Untitled, 1969
Vinyl sheets, suction cups 
3' Sq.

Untitled, 1970
Vinyl-coated steel cable
12' L

Untitled, 1970
Aluminum, vinyl-coated steel cable 
28' Sq.

Untitled, 1970
Stainless steel tubing, vinyl-coated cable
8' Sq.

Untitled, 1970
Vinyl-coated cable, vinyl
13' L

Untitled, 1971
Window screen, cable, aluminum, hardware
14' L

Untitled, 1971
Vinyl, vinyl-covered steel cable, aluminum
5’ H

Spirit Levels
and Other Devices (
View All) (TOC)

Spirit Level #1, 1986
Branch, lead, glass, alcohol 
5" W

Spirit Level #2, 1986
Branch, lead, glass, alcohol
11" W

Spirit Level #5, 1986
Branch, lead, glass, alcohol
8" W

Spirit Level #10, 1986
Branch, lead, glass, alcohol
4.5" W

Spirit Level #13, 1986
Branch, lead, glass, alcohol 
10” W

Spirit Level #14, 1986
Branch, lead, glass, alcohol
13" W

Spirit Level #20, 1987
Branch, lead, glass, alcohol 
13" W

Spirit Level #23, 1987
Branch, lead glass, alcohol, brass 
8” H

Spirit Level #29, 1987
Branch, lead, wire, glass, alcohol 
16" W

Device #5, 1986
Sapling, lead, galvanized steel
73" H

Device #10, 1986
Sapling, lead, steel
Extends to 12', 6"

Device #12, 1987
Sapling, wire, lead
26" W

Device #13, 1987
Saplings, lead, wire, maple 
82" H

Device #19, 1988
Sapling, lead, wire
18" H

Device #20, 1988
Saplings, lead-galvanized metal wire, maple
104" H

Device #22, 1988
Saplings, lead, wire, stainless steel
108" H

Device #24, 1988
Folded yellow birch sapling, brass hinge 
Unfolds to 17'

Device #32, 1988
Sapling, wire, lead
6’ H 

Device #40, 1988
Sapling, lead, wire
10” Dia

Device #41, 1988
Sapling, lead, wire
29" H

Solid Geometry (View All) (TOC)

Negative Hemisphere, 1984
Machined cast iron
9"

Sphere, 1984
Machined cast iron
9"

12" Radius Slipped Sphere, 2004
Machined cast iron
9" W

Circle/Ellipse Cone, 2004
Machined cast iron
9"

Circle Groove, 2004
Machined cast iron
9"

Cone 1, 2004
Machined cast iron
9" W

Cube, 2004
Machined cast iron 
9” W

Cube 2, 2004
Machined cast iron
9"

Cylinder, 2004
Machined cast iron
9"

Hidden Sphere, 2004 
Machined cast iron
9"

Internal Sphere, 2004
Machined cast iron
9"

Positive Hemisphere, 2004
Machined cast iron
9"

Prism, 2004
Machined cast iron
9"

Right Cone, 2004
Machined cast iron
9"

Shared Sphere, 2004
Machined cast iron
18" W

Slipped Sphere, 2004
Machined cast iron
9"

Planetaria (View All) (TOC)

Orbit, 2005
Machined and polished cast iron, maple 
38" Dia.

Contained Orbit, 2006
Machined cast iron 
11" Ellipse

Tower Orbit, 2006
Cast iron, brass, silver
14"

Orbital Track, 2007
Cast iron, bronze, ceramic
10" Dia.

Center Orbit, 2008
Machined cast iron and bronze
9" Dia.

Nested Orbits, 2008
Mahogany, steel, brass, ceramic
7" Sq.

Mica Orbit, 2009
Mica, brass, ceramic
14" W

Universe, 2009
Machined cast iron, gold leaf
8" Dia.

Earth Moon, 2010
Sun-cast iron, bronze, steel ceramic
9" Dia.

Orbital Light, 2011
Carbon fibre, gold leaf, hardware
14"

Southern Ecliptic, 2011
Pigmented copper, steel
8" Dia.

Umbra / Penumbra, 2011
Wood, carbon fibre, hardware
28" H

Vehicles (View All) (TOC)

AJ’s 650cc Trike, 1968

Leaning Prone Trike, 1971

Leaning Silver Trike, 1972

Silver Trike, 1972

Gravity Glider, 1973

Mid Engine 125cc Trike, 1974

Carbon Fiber Trike, 1994

Areofold Trike, 1998

Active Frame Trike, 2001

Little Bike, 2002

Little Bike 2, 2003

Carbon Fiber Bike, 2009

1969 SAAB Electric Conversion, 2001

Other Works (View All) (TOC)

Boat #6, 1985
Maple, patinated copper wire
36" W

Boat #10, 1985
Maple, patinated copper wire 
45" H

Boat #13, 1985
Maple, patinated copper wire 
46" H

Boat #14, 1985
Maple, patinated copper wire 
47" H

Double Cone, 1994
12" radius concave mirror-polished cast iron, mahogany, brass
7" cube closed

Elliptical Cone, 1994
Cast iron
18" W

Ellipse, 1994
Paper, mahogany, maple, cast iron
10' W 

Gunter's Chain Cone, 1995
Cast iron, steel, pine
23" W

Gunter's Chain Cube, 1995
Cast iron, steel, pine
23" W

Gunter's Chain Sphere, 1995
Cast iron, steel, pine
23" W

Milagros, 1995
Magnetite, cast iron
8" W

Sighting Device #1, 1995
Polished cast iron, oak
66" H

Sighting Device #3, 1995
Cast iron, cast glass, oak
66" H

Sighting Device #4, 1995
Polished cast iron, oak
66" H

Natural History, 2004
Clear fir squares, particle board
4' dia., 8" D

Single Beer Cooler
Peltier module, aluminium, cork

Small Granite Table

Stone Table

​​Two End Tables