Our
full service conventional model shop and service bureau for
rapid prototyping was founded in 1960 at our present location.
Conventionally
constructed, fabricated molds are provided using CNC milling
machines, lathes, vacuum formers and shop metal working machines.
Laser cut parts are also available. We offer rubber molds
using the RTV Rubber mold technique in order to provide strong,
photo shoot quality duplicate models. Two part urethane resins
are tinted to your specifications. The strength of this process
is suitable for most commercial applications where duplicate
models are required for testing.
We generally
run our FDM parts in white ABS with a surface comparable to
most rapid prototyping materials. By finishing the FDM part
to master pattern quality, we can also offer flexible parts.
We utilize RTV silicon or urethane "rubber" molds
in order to duplicate the FDM part for quantity runs. We recommend
using casting wax patterns to be used for ceramic investment
mold manufacture.
We feel
that the FDM process is better than SLA or SLS because the
model is FUNCTIONAL and can be used as a WORKING MODEL immediately.
FDM material is similar to conventional ABS sheet, rod and
bar stock. If changes or alterations are necessary, we simply
cut away the section and add the new sections using solvent
bond or k-glue. Prototype models that require a super outside
finish are sanded and prepped for a painted surface.
The initial
cost of the FDM prototype and turn around time is competitive
with the other systems. Our machine is a Stratasys 2000 capable
of tolerances of plus or minus .005". ABS can be resin
bonded so we can build larger models by building in sections
and bonding into one piece.
Our WATER
WORKS system dissolves the support material in water to assure
that our model is nick/scratch free and uniformly smooth,
leaving the fine details sharp.
| The
material specifications for ABS - P400 provided by Stratasys: |
Tensile
Strength: |
5000
psi |
Tensile
Modulus: |
360,000
psi |
Flexible
Strength: |
9,5000
psi |
Flexible
Modulus: |
380,000
psi |
Impact
Strength: |
|
|
2.00
ft. lb./in. |
|
24.00
ft. lb./in. |
Hardness
(shore D): |
78
(D) |
Elongation: |
>
10% |
|