3D Printers

3D printing is a method of rapid prototyping for making plastic prototypes from CAD models.  The printers can easily and fairly rapidly create 3D models from computer files created using SolidWorks®, IronCAD®, or virtually any other 3D rendering suite. 

Before you use the 3D printer, there are several things to consider. Please read all of these if you intend to use the 3D printer.

Procedure for using an OEDK 3D Printer  

  A *NEW* 3D Printer Corner is open and ready to use!

It is located near the OEDK Wet Lab.  This are self-service printers and are open to use by any OEDK registered user.  More information and training material coming soon.

For more information about each 3D Printer's capability is below. For information on how to use 3D Printers go to our Equipment Training Modules.

Connex Objet 260

Printing Technology PolyJet
Build Platform Size (L x W x H) inches  10.2 x 10.2 x 7.9
Material 100+ Photopolymers
Number of Different Material Properties
Per Print
14
Resolutions Possible 0.0006" (High Quality), 0.001"
(High Speed, Digital Material)
Separate Support Material Yes - WaterJet Removable
Files Accepted .STL/.SLC
Cost/Cubic Inch $9.18 - $11.32 (model)  $4.25 (Support)
Software Objet Studio
Tolerance (Geometry Dependent) 0.0007" - 0.003" (Below 50mm)  ≤0.007
(Full Size Model)
Post-Processing Method Required WaterJet
Applications Aesthetic Concept Models
Overmolding
Rubber-like prototypes
Injection Molding inserts
Dental
High Resolution Models




Fortus 250mc

Printing Technology FDM
Build Platform Size (L x W x H) inches 10 x 10 x 12
Material ABS Plastic
Number of Differnent Material Properties Per Print 1
Resolutions Possible 0.010"
Separate Support Material Yes - Soluable
Files Accepted .STL
Cost/Cubic Inch $8.00
Software Insight/ Control Center
Tolerance (Geometry Dependent) ±0.0095" 
Post-Processing Method Required Sodium HydroxideBath
Applications Jigs/Fixtures
  Inexpensive concept models
  Sand Casting
  Low-Temp Molds


Dimension SST 768

Printing Technology FDM
Build Platform Size (L x W x H) inches 10 x 10 x 8
Material ABS Plastic
Number of Differnent Material Properties Per Print 1
Resolutions Possible 0.010"
Separate Support Material Yes - Soluable
Files Accepted .STL
Cost/Cubic Inch $8.00
Software Insight/ Control Center
Tolerance (Geometry Dependent) ±0.0095" 
Post-Processing Method Required Sodium HydroxideBath
Applications Jigs/Fixtures
  Inexpensive concept models
  Sand Casting
  Low-Temp Molds





Formlabs Form1+

Printing Technology SLA
Build Platform Size (L x W x H) inches 4.9 x 4.9 x 6.5
Material Methacrylate Photopolymer Resin
Number of Differnent Material Properties Per Print 1
Resolutions Possible 0.001", 0.002", 0.004"
Separate Support Material No - Removable Resin Supports
Files Accepted .STL/.OBJ
Cost/Cubic Inch $2.30 - $3.12
Software PreForm
Tolerance (Geometry Dependent) Not Available
Post-Processing Method Required Isopropyl Alcohol Rinse & Soak (10 minutes).  Possible Additional Water/UV Soak.
Applications High Resolution Models
Small Fluid Channels
Inexpensive concept models
Dental


To use a 3D Printer:

  1. Create an .stl file using SolidWorks®, IronCAD®, or virtually any other 3-D rendering suite.
  2. After file is complete, review file with an OEDK Lab Technician or Lab Assistant
  3. When ready to print, fill out the 3D Printer Log form on one of the 3D Printer computers
  4. Get assistance from an OEDK Lab Technician or Lab Assistant to run the print job
  5. Review with OEDK Lab Technician or Lab Assistant the expectations for length of time for the print to be complete and post-processing
  6. Review the 3D Printing Training Module

Format

The file you need in order to operate the 3-D printer is an .stl file. If you come with another file type, you will not be able to print. You can convert IronCAD and SolidWorks files into .stl files within the program. To print a model you will need an STL file (.stl).  There are a few open-source 3D design programs that can save or export in this format such as Sketchup MakeAutoCAD’s 123DTinkerCAD and Blender.

Budget

To start with, there is a $5.00 processing charge for use of the plastic base and sodium hydroxide bath. On top of that, the cost is approximately 8.00 per cubic inch, including support material, depending on which printer you use. If you can afford the cost of printing, please come with a fund and organization number. You should receive these numbers when you begin design, or from your advisor.

Scheduling and Patience

Although you do not have to pay for time on the machine, printing parts can take hours. If you are planning on printing a part, contact an OEDK technician  for availability of the machine. ALL PRINT JOB FILES MUST BE REVIEWED by you with an OEDK design technicinan prior to the job being run.  It is crucial to catch any errors in the file before printing so not to waste materials and time. Printing is started between the hours of 8:30am and 3:00pm. You can expect at least one day of processing time prior to the commencement of printing. The printer also is operated on a first come, first served basis. 

You can expect a minimum of one day processing time prior to the commencement of printing.

Necessity

Many of the parts that you may think you need to print are available for purchase for much cheaper. A box that costs $60 to print may be available at an electronics vendor for $3. These boxes will be stronger, more consistent, and easier to obtain, so this course of action is recommended if possible. If you do decide that you need to print a custom part there are several more items to consider.

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Contact us

Oshman Engineering Design Kitchen - Rice University

6100 Main Street MS 390 | Houston, Texas | 77005

Phone: 713.348.OEDK

Email: oedk@rice.edu

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