This is a simple hot wire cutter to build and runs off a battery charger 
that
is capable of cutting 4 inch foam with no problems. The table is 3'x 2' 
with
a 3/4" black pipe over arm that tilts to 70º to the right the rear of the
head pivots on a 1/2" black pipe nipple that is turned to fit in side of
the 3/4" pipe. the front wire mount under the table is a 3/4" cr stock 
with
a hole drilled and taped for a 1/4x20 bolt. the upper arm has a 1/4x20 eye
bolt and wing nut to tighten the .30 ss wire. the battery charger is
controld by a light dimmer switch and the battery charger is a 4 amp
12 volt. the table is made from 3/4" mdf with a 4x4 and 2x4 supports
under it. 
