3D Printing – Stratasys J750

The J750 uses jetting technology to selectively apply a thin layer of photo curing liquid resin which is immediately cured by UV light. What sets the J750 apart from the other 3D printers at the Groundworks Fabrication Studio is the ability to digitally blend up to 6 materials. This allows for up to 360,000 colors, clear parts, hard parts, flexible parts, or a variety in between. The 720 dpi print head allows for smooth surfaces and fine features but is limited due to the mechanically separated support structure.


J750 Details

Machine Specifications

Build size:
490 x 390 x 200 mm (19.3 x 15.35 x 7.9 in.)
Resolution
X-axis: 600 dpi; Y-axis: 600 dpi; Z-axis: 1800 dpi

Materials

The Stratasys J750 features a true, full-color capability because it operates with five different colors at once. It can produce parts in over 360,000 colors, textures, gradients, transparencies and durometers.

Pricing

For printing on all full service printers, there is a $20 setup fee. After that, it is based on the amount of material used, which varies based on the size and shape of the part. On the J750, the cost is $0.20 per gram of model material and $0.08 per gram of support material.

Frequently Asked Questions

What is the J750 best for?

The J750 can digitally blend up to 6 materials. Stratasys offers various materials to include flexible, transparent, colors, and biocompatible. 6 material bays imposes a limitation in that the 3d printer has to be tuned to your application so material capability is limited to what is currently loaded. The J750 can produce medical models that you can see into, prototypes with hi color, and simulated overmolding. Due to the harshness of post processing it is not well suited for parts under a cubic centimeter or highly delicate surface features.

Is part strength uniform?

Parts strength is uniform in all directions.

Why is there a $20 set-up fee?

The $20 set-up fee covers the costs other than material used including: pay for the staff running the machines and other costs associated with machine maintenance.

Can I bring my own materials?

The printer is made to use only specific material so no other materials are allowed as it may damage the printer and void the warranty.

Can I print transparent parts?

Yes you can, although it may require polishing.

Can I print parts with only the support material?

The printer cannot print parts made of support structure.

Can I print parts without the support material?

The J750 requires the use of support structure to anchor the part and provide scaffolding for overhanging geometry.