Build Your Own Foam Cutter
1. Choose any thickness wire from .005" to .020" diameter. Thin wires are safer and they     cut cleaner — but they sag and break if stressed. Larger wires are tougher.

2. Use the transformer and control unit shown.

3. Design a fixture to hold the wire — use a spring to hold a constant tension in the wire.

4. This schematic is shown only to indicate how a system could be configured. Consult an electrician or electrical engineer for proper wiring and setup.

TRANSFORMER
Model ABT-2

Input 115 volts
Output


 
either 12-volts at 8 amps or
24-volts at 4 amps (you can
hook it up either way).
Size 33/8" x 27/8" x 3"
Capacity




.005" wire up to 12" long
.010" wire up to 18" long
.015" wire up to 24" long
.020" wire up to 16" long
Pricing and purchase of ABT-2 Transformer on Abbeon.com

Control Unit
120 Volts AC 50/60 Hz, 10 Amps, 1200 Watts
Power Circuit: power semiconductor with parallel r-c circuit.
Control Circuit: all solid state circuit for stable, full-range control.
Mains Frequency: 50/60 Hz.
Output Voltage: 0-95% of input.
Overall Efficiency: 99%.
Power Loss: 1.5 wafts/amp.
Control Input: variable resistance, 270°-turn potentiometer.
Control Power: 1 watt.
Fuse Protection: special “2 millisecond” fuses are
 factory-tested and coordinated to protect the power semiconductors from short circuit faults.
Input Connection: grounded three-prong plug. (NEMA 5-15P @ 120 VAC, or 6-15P @ 240 VAC)
Output Connection: three-prong receptacle. (NEMA 5-15@ 120 VAC, or 6-15 @ 240 VAC)

Pricing and purchase of 18TP Control Unit on Abbeon.com
Model 18TP unit includes a standard grounded plug on a six foot power cord and a three-prong receptacle for quick and easy line and load connection.
A lighted rocker switch turns power to the unit on and off; a case-mounted, easy-to-operate 270°-turn potentiometer provides variable control of the RMS output voltage. Unit chassis are designed for portable use or 2-hole fixed mounting.

Nichrome Wire
Tophet A
One-pound spool
Non-Magnetic
For cutting styrofoam
AWG
#24
#26
#30
#36
Diameter Inches .0201 .0159 .0100 .0050
Diameter mm .511 .404 .254 .127
Ft/Spool (approx.) 793 1,260 3,140 3,200
Ohms/ft 1.609 2.571 6.500 26.00
Pricing and purchase of Nichrome Wire on Abbeon.com
Questions or Orders —
Call  800/922-0977   8am – 4pm Pacific Time