Basic 3DP Modeling Requirements for 3DPrint

  • The model must be a closed mesh ("watertight") polygonal model. (In Rhino this means converting a closed polysurface into a closed mesh and then exporting the mesh as an STL file.)

  • Purge any unnecessary/duplicate objects.

  • Your surface and mesh normals should be unified with the normals pointing away from the model.

  • Make sure unit is on millimeters

  • It is advisable to shell the model with a minimum thickness of 0.125 in.

Scroll down to learn about each machine:


Ultimaker 2+

Build Size:

8.8" x 8.8" x 8.1" (X, Y, Z)

Ultimaker 3.png

Ultimaker 3

Build Size:

8.8" x 8.8" x 12" (X, Y, Z)


ZPrinter 650

Ultimaker 2+

The Ultimaker is a plastic filament extrusion printers that produce parts of low resolution but of high strength

  • Location: Voorhees 813

  • Plastic Filament Types: PLA / ABS 

  • Build Size: 8.8" x 8.8" x 8.1" (X, Y, Z)

  • Z Layer Min. Thickness: 5 microns

  • XY Resolution: 12.5 microns

  • Single Extrusion 

Ultimaker 3.png

Ultimaker 3

The Ultimaker is a plastic filament extrusion printers that produce parts of low resolution but of high strength

  • Location: Voorhees 813

  • Plastic Filament Types: PLA / ABS 

  • Build Size: 8.8" x 8.8" x 12" (X, Y, Z)

  • Z Layer Min. Thickness: 5 microns

  • XY Resolution: 12.5 microns

  • Single Extrusion 

3D Systems ZPrinter 650

The 3D Systems ZPrinter 650 3D printer is an inkjet powder printer with high part resolution but low part strength unless infiltrated with CA. The 650 is fully color-capable with color quality dependent upon infiltration with CA. 


  • Location: Voorhees 813,

  • Build Size: 10" x 14" x 8" (X, Y, Z) 

  • Z Layer Thickness: 0.0035" - 0.0040"

  • XY Resolution: 600 dpi x 540 dpi 

  • 390,000 Colors


Ultimaker Use Guidelines

  • Students can use the Ultimaker and other plastic printers on their own after receiving training at a weekly workshop on operating the machine. PLEASE NOTE: Completion of this training is required to use the 3D printing machines. A number of 3D Printing machinery training sections will be offered during the semester.




  • Students should reserve a training spot online at the NYCCfab website, link

  • For further assistant in 3D Printing Modeling, workshops will be available at the given time period above. Students should register here.

  • Sign-up for 3D printing slots for certified students is available at the 3D printer station in room V813. You should use the CURA time estimate for your sign up and add three hours. The maximum allowable print time is 24 hours. Reserve a slot here.

If printing has not begun or the student is not present after 30 minutes from when your appointment begins, the timeslot may go to another student.***

  • The file must follow the naming convention: "FirstName_lastName_Part#" **

**Failure to follow the naming convention will result in cancellation of 3DPrinitng job by fabrication monitors and other potential consequences

  • Students will be responsible for their own 3D model checking and can refer to the online tutorial for assistance, link

  • Students will be responsible for creating their own GCode file and can refer to CURA guideline, link 

  • Students are responsible for providing their own filament. Ultimaker uses 2.75mm.

Filament trusted vendor include but are not limited to:


  • The NYCCTfab LAB will accept special requests for the use of the powder printer from professors with a month's notice before the due date. Fill out the Project Request Form available on the NYCCTfab website, link 


***You will want to leave ample time before presentations (over a week) the first few times you use the 3D printers.
















Powder Printing Use Guidelines

  • To initiate the process, your professor must complete and submit a  Project Request Form within the first 3 weeks of the semester. After this deadline, projects will be considered as possible

  • Once your professor has submitted the Project Request Form, you will receive an email invitation to submit your files. If your entire class will be 3D printing, there will be a required 3D printing orientation session prior to any file submissions.

  • No group submissions; all students must submit files individually.

  • Name your files using the following convention: 

yyyymmdd_powder _professorsurname_studentsurname_n,

n is a number in the event that you are printing multiple parts that day.

Example: 20160519_Powder_Vidich_Espinal_1, 20160519_Resin_Vidich_Espinal_2


  • Each part to be printed must be exported as its own STL file.

  • While 3D printing is free for our students, there is a volume limit of 15 cubic inches per student per semester. Shelling your model can help you maximize this available limit.

  • You will be contacted by a CLT to let you know the status of your 3D print. If there are errors in the model you will be notified of those errors by the CLT and given direction on how to proceed, at which point it is your responsibility to repair the model and resubmit.

  • To have your model produced on time, you will need to submit your files 5 business days prior to the day you need the model.


Process for Student's Submission: Powder


1. Complete submission form  http://www.nycctfab.com/#!3d-printing-submission-form/wua1s

2. After the form is submitted, upload model to Dropbox

3. Submission Acceptance or Revision Request


  • Acceptance: Student receives a message via Dropbox, that the file is accepted.

  • If you need further assistance, schedule a revision appointment


*We try our best to ensure all of our machines are fully operational during the semester; however there are instances in which our machines have failed during important dates (Midterms & Finals). If so,:

1. Professors are required to choose the top models of their class, under their discretion.

2. Immediate notification to students. 

3. Models must be downsized for faster print time.




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Developed with the support of the

National Science Foundation's

ATE Program