<s>
IRONCAD	B-Algorithm
is	O
a	O
software	O
product	O
for	O
3D	O
and	O
2D	O
CAD	B-Application
(	O
computer-aided-design	B-Application
)	O
design	O
focused	O
mainly	O
on	O
the	O
mechanical	O
design	O
market	O
that	O
runs	O
on	O
Microsoft	O
Windows	O
.	O
</s>
<s>
It	O
is	O
developed	O
by	O
Atlanta	O
,	O
GA	O
based	O
IronCAD	B-Algorithm
LLC	O
.	O
</s>
<s>
IRONCAD	B-Algorithm
was	O
originally	O
developed	O
by	O
Visionary	O
Design	O
Systems	O
(	O
VDS	O
)	O
based	O
in	O
Santa	O
Clara	O
,	O
CA	O
.	O
</s>
<s>
In	O
2001	O
the	O
development	O
team	O
led	O
by	O
Dr.	O
Tao-Yan	O
Han	O
split	O
from	O
VDS	O
(	O
now	O
known	O
as	O
Alventive	O
)	O
to	O
form	O
IronCAD	B-Algorithm
LLC	O
to	O
continue	O
the	O
development	O
of	O
the	O
IRONCAD	B-Algorithm
product	O
.	O
</s>
<s>
IronCAD	B-Algorithm
descended	O
from	O
a	O
product	O
called	O
Trispectives	O
,	O
developed	O
by	O
3D	O
Eye	O
,	O
an	O
Atlanta-based	O
company	O
that	O
was	O
acquired	O
by	O
VDS	O
.	O
</s>
<s>
IRONCAD	B-Algorithm
primary	O
focus	O
is	O
on	O
3D	O
CAD	B-Application
design	I-Application
using	O
solid	O
modeling	O
technology	O
.	O
</s>
<s>
IRONCAD	B-Algorithm
uses	O
both	O
Parasolid	B-Application
and	O
ACIS	O
modeling	O
kernels	O
to	O
provide	O
computational	O
methods	O
for	O
solving	O
geometric	O
calculations	O
such	O
as	O
calculating	O
blends	O
and	O
shells	O
.	O
</s>
<s>
IRONCAD	B-Algorithm
also	O
employs	O
the	O
use	O
of	O
direct	O
face	O
editing	O
and	O
allows	O
the	O
combination	O
of	O
features	O
and	O
direct	O
face	O
edits	O
within	O
the	O
same	O
part	O
.	O
</s>
<s>
To	O
assist	O
people	O
in	O
learning	O
products	O
many	O
users	O
have	O
written	O
books	O
on	O
IronCAD	B-Algorithm
's	O
products	O
to	O
assist	O
customers	O
in	O
training	O
of	O
the	O
software	O
.	O
</s>
