3D Printing

ECE has a total of eleven 3D Printers:

(3) Stratasys Objet, (7) Tinkerine Ditto Pro and (1) Sindoh 3DWOX DP201 for:

  • ECE Undergraduate students, in the context of ECE project courses (e.g. Capstone or ELEC 391)
  • ECE research work
  • Other UBC research work

For direct submission of printing jobs use the Request Tabs on the side.

More information on our printers, how to submit requests for printing & costs for printing is available below.

 

Stratasys Objet 3D printers (Polyjet - High Resolution):
High-precision 3D printers with a resolution of 28 microns of mm. A type of UV Material Jetting Technology (Similar to SLA).

Location: MCLD 257 Lightning Lab
Qty: 3 total (2 x Objet 24, 1 x Objet30)

Print Material: VeroWhitePlus RGD835 (link to MSDS -and- more info here)
Support Material: FullCure 705 (link to MSDS)

Cost: $15.00 setup fee + $1.00/g of material used (print & support materials combined)

Note: Project courses may use a different costing model for the purposes of project budgets - undergraduate students should refer to their course instructor for more information.

For technical specs please follow the links below:

Specifications  Objet 24
Specifications  Objet 30

Objet30 3D PrinterPhoto credits: link

Tinkerine Ditto Pro printers (FDM - Low Cost)
Low printing cost, fused deposition modelling (FDM) printers with a layer resolution of 0.05mm - 0.3mm.

Location: MCLD 315
Qty: 7 total

Print Material: 1.75mm PLA filament (available in matte white, black & grey)
Support Material: None (Tinkerine Suite can create support lattice from print material if needed)

Cost: $15.00 setup fee + $0.10/g of material used

Note: Project courses may use a different costing model for the purposes of project budgets - undergraduate students should refer to their course instructor for more information.

For technical specs please follow the link below:

Specifications Ditto Pro

TinkerinePrintersSetup in room M315

 

Sindoh 3DWOX DP201 WebCam Monitored* printer (FDM - Low Cost)

Low printing cost, fused deposition modeling (FDM) printer with a layer resolution of 0.05mm - 0.3mm.

Location: MCLD 117, ECE Coops normally operate this unit and assist Capstone.
Qty: 1 total

Print Material: 1.75mm PLA filament (available in matte white, black & grey)
Support Material: None (Sindoh Suite can create support lattice from the print material if needed)

Cost: N/A (Capstone / NVD Supervisor Authorization)

For technical specs please follow the link below:

Specifications 3DWOX DP201

Set of instructions are provided on the following guide:

ECE 3D Printing Guide

The 3DWOX DP201 Printer is controlled remotely from PC 13 on the Capstone Lab [MCLD 458] using 3DWOX software.

Undergraduate students can make direct use remotely from PC 13 located on the bench number 26  for the FDM 3D printer for their Capstone projects 24/7. The first time that you use the software, it will ask you which model of printer it is. Please specify Sindoh DP201 and use support everywhere to prevent 3d prints to fail.

Conditions of Service

  • Only authorized Capstone/NVD users are permitted to submit jobs to the printer.
  • The printer is monitored 24/7 Online by ECE Eng. Services.
  • We reserve the right, at our sole discretion, to change or cancel jobs at any given time.

ECE's Dr. Leo Stocco has created a set of tutorials and a FAQ section on Material Jetting 3D Printing.

Sam Lee our summer 2016 Mech. Coop. has developed a 3d printing overview document and a Solidworks and 3d printing tutorial for specific use with our ECE FDM Printers (Tinkerines Ditto Pro) during project courses.

Preparing a Parts File for submission:

  1. Open the parts file in SolidWorks and close any assemblies that the part is included in
  2. Open the “Save As” menu dialog
    1. Set the file as a .STL file
    2. Click on “Options…”
      1. Set “Deviation” to the lowest value available
      2. Set “Angle” to 5 degrees (angles less than the value provided will produce larger .STL files which may or may not be printable)
    3. Save the file/s

 

Preparing an Assembly File for submission:

  1. Open the assembly file in SolidWorks
  2. Open the “Save As” menu dialog
    1. Set the file as a .STL file
    2. Click on “Options…”
      1. Set “Deviation” to the lowest value available
      2. Set “Angle” to 5 degrees (angles less than the value provided will produce larger .STL files which may or may not be printable)
      3. Check/uncheck the “Save all components of an assembly in a single file” box
        • Checking the box will print the entire assembly as a single part
        • Unchecking the box will result in an individual part file for each part in the assembly
    3. Save the file

Tutorial on preparing files (PDF)

Designing cost & time efficient parts:

  1. Trim unnecessary flanges or walls
  2. Minimize support material used:
    1. Rotate the part so it sits as flat as possible on the table
    2. Orient parts to eliminate gaps where support material is needed
    3. Produce your part as an assembly of smaller parts
  3. Specific to Objet printers:
    1. Select a glossy finish
    2. Manually position multiple parts so that they overlap in the Z-axis

Tutorial on efficient design (PDF)

 

Other notes on designing for 3D printing:

  1. Try to keep files under 100MB
    1. Files over 500MB will fail
    2. To reduce file size when generating STL file, increase angle
  2. Minimum of 0.25mm clearance between parts in a joint
  3. Use "Evaluate / Clearance Verification" feature in SolidWorks when designing assemblies
  4. Some assemblies cannot be broken free if designed pre-assembled:
    1. Large diameter shafts
    2. Small diameter shafts (<5mm)
    3. Mechanically connected joints that require multiple joints to be freed simultaneously

Tutorial on designing various joints & parts (PDF) - Design Files (ZIP)

 

Frequently Asked Questions

QuestionAnswer
What file format do I need to save from SolidWorks?STL - see PDF tutorial above for details
How big can the part be? What is the printing accuracy? ...There are three styles of printers: the Ditto Pro, the Objet 24 and the Objet 30. The tray size and printer performance specs for each model is specified in the spec sheets above.
Can I get an estimate of the part cost before I build it?Objet Printers: Use Objet Studio to set up your print job and then press the "dollar sign" button. This will give you an estimate of the material usage and build time.

Tinkerine Printers: Use Tinkerine Suite to set up your print job and then press "slice" button. to This will give you an estimate of the material usage and build time.
What can I do to reduce the cost?Scaling down the size will reduce both model and support material.

You can reduce the amount of support material required by:
(1) Rotating the part so it sits as flat as possible on the table
(2) Manually positioning multiple parts so that they overlap in the Z-axis
(3) Producing your part as an assembly with small gaps between parts
(4) Select a glossy finish (for Objet printers)
How do I make a part with a working joint?(1) Use SolidWorks to create an assembly and then save the assembly as an STL file.
(2) Make sure to position the joints so that the assembly is as flat as possible to waste less support material.
(3) Make sure there is a minimum gap of 10 thou (0.25 mm) in the joint so you will be able to free it up.
(4) When you generate your STL file, check the "Save all components of an assembly in a single file" box (see PDF tutorial above).
What exactly is a Thou?1/1000 inch (or 25.4 um)
You can think of it as a mili-inch. This unit of measurement may also be referred to as a "Mil" but "Thou" is the term used in the Objet documentation.

Do you have a question not answered here?

  • Email us at 3d@ece.ubc.ca for more information.