Prototype technologies


Prototype technologies
Mold quantity (pieces) 1>10 10>50 50>100
Technologies CNC FDM SLS SLA VC ST
Cost * *** *** *** * *
Accuracy ***** *** *** ***** ***** *****
Material choices ***** **** *** **** ***** *****
For model presentation ***** ** ** **** ***** *****
Mechanical testing **** **** *** *** ***** *****
Mass production simulation **** ** ** ** **** *****
Speed *** *** **** **** ** *
Total Score 28 21 20 25 27 27
Scores 1-5, 1 being Poor and 5 Excellent.


High Speed Milling (CNC)

From milling and lathe work to grinding,CNC machining is a viable option for everything from prototypes to low-volume production. Possibility of using many materials, including plastics and metals. Undercuts and double bended surfaces are feasible.

 


Fused Deposition Modeling (FDM)

Thermoplastic modeling material is fed into the temperature-controlled FDM extrusion head and heated to a liquid state. The head extrudes and deposits the material in ultra thin layers onto a fixtureless base.

 

 


Selective Laser Sintering (SLS)

A laser traces the shape of the part to be modeled in a thin layer of powder. The laser sinters (softens and bonds) the powder particles together. This process is repeated over layers of powder.

 

 


Stereolithography (SLA)

Selective curing of a photopolymer resin by an ultraviolet laser, built on a descending platform, in a vat.

 

 

 


Vacuum Casting (VC)

Molding technique wherein a part layed up on an open mold is cured under a layer of sealed film from which entrapped air has been removed by vacuum. The technique more effectively consolidates the laminate and reduces void content, compared to conventional open molding.

 


Soft Tools (ST)

First a mold container (MDF or acrylic) is constructed, then the original part is suspended within. Liquid silicone is poured into the container, covering and completely encasing the original part. In a few hours, the silicone cures and the hardened rubber block is removed from the mold box.