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Delta Engineering SE
Mechanical and Ocean Solutions

3D Printing

3D printing is also known as Additive Manufacturing. A part sketch or drawing is first converted to a 3D cad model. This 3D cad model is then saved in a format that can be used by a 3D printer. The 3D printer software takes the 3D cad model and instructs the 3D printer to print the part one layer at a time from plastic materials such as ABS (Acrylonitrile Butadiene Styrene) or PLA (Polyactic Acid), or steels such as titanium or stainless. These layers are approximately 125 um thick. These layers are fused together, and eventually form a part that is identical in shape to the 3D cad model. Some of the 3D printing technologies available are FDM (Fused Deposition Modeling), Polyjet, Stereolithography, Laser Sintering, and Metal Powder Bed Fusion.

How I Can Help You:

All that is needed from you is a 2D drawing or sketch of the part you need, and the material you would like the part to be made from. I will create a 3D CAD model from your drawings, and send the 3D printer file to a manufacturer, who will return the finished part to you. Because 3D printing requires no tooling or set up time, the part will be created more quickly and with less expense than by using a machine shop to create the part.

Impeller 3D Printed from ABS

The CAD Model of the Impeller, shown above, was created with SolidWorks 3D modeling software. The SolidWorks file was then saved in a format used by a 3D printer (.STL). The 3D printer then converted the .STL file to an actual 3D Printed Model, which is also shown above. The 3D part was printed from ABS (Acrylonitrile Butadiene Styrene), which is a hard durable plastic material. As mentioned above, a 3D printed part can be made from a number of different processes and materials. Prices of this 3D Printed Model, made from different materials, are listed below.
*3D printed from Plastic (ABS):   $100.
*3D printed from Nylon 12 w/Carbon Fiber:   $200.
*3D printed from Polycarbonate Filament:   $200.
*3D printed from 316 Stainless Steel:   $1616.

Advantages of 3D Printing

Complex parts manufactured through traditional machining methods often have to be broken up into separate sections, or have their shape changed, to improve manufacturability.

3D Printing offers more geometric freedom with minimal tooling and setup. Additive manufacturing allows consolidating multipart assemblies into single parts for printing.

Digital Inventory

Having access to a 3D printer eliminates part storage and maintenance roadblocks. Digital copies of replacement parts, complete with their printer settings, can be stored and sent to 3D printers on and off site whenever they are needed.