a) Files can be created in various 3D modeling programs. Rhino, Maya, 3d Studio Max and FormZ are suggested. Files must be able to be imported into any of those programs. If modeled with Inventor or another program, please export your file in any of the following formats:
- .dwg, .dxf, .3dm, .3ds, .stl, .igs, .obj
b) All parts must be exported as closed (watertight) objects.
- The 3D Printer only recognizes model files in STL format that have no open edges.
(refer to PDF tutorials for correcting seams, and exporting the part in .STL format).
- Please submit your files to be cut with the CNC Router in .3dm format.
c) When submitting, please save your file in the following format:
- LastnameFirst_FileName.stl or .3dm
d) All files must be expressed in inches or millimeters at a 1:1 scale
e) Models are limited to a working envelope
- HAAS 3-Axis CNC Router : 2438 x 1219 x 203 mm (96 x 48 x 8 in.) CNC Instructions
- Students must download prepared Rhino template. Do not alter template.
f) Parts must all be located within the 0 plane, XYZ coordinate (0,0,0), of the build frame of the printer base. This means that if your part lies within the negative Z plane in the Software you run a risk of your part not printing correctly. Part will be rejected by operator if not properly positioned.
SPECIFICATION OF INTERIOR PART STRUCTURE
Printing in Dimension Elite & Rapman
- Thin Open Cell structure
Should be used on solid or thick Parts. This will help reduce material used, time, and cost
- Dense Cell Structure
Should be used on moderately thick Part conditions.
- Solid Build
Should be used when parts are very thin, and possibility of the part breaking is a factor.
Printing in ZPrinter 350
- For large solid and thick parts, shell the geometry (hollow the interior). This will help reduce material used, time and cost.
- NOTE: if you shell a solid object, provide a sort of opening/hole to allow excess powder to be vacuumed out.
All geometry must have closed seams (or a water tight object). Open seams will result an inaccurate printing result.
This is the responsibility of the student, any errors will not plot an accurate file and files will have to be corrected and re-submitted. Reimbursements will not be given to the student if part has to be canceled due to errors in the file once the print job has started.
OPERATOR PROTOCOL FOR PRINTING & CNC MACHINING
1) STL or RHINO File submitted on corresponding wiki site
2) Shop Assistant establishes in software the material amount and calculates cost estimate.
3) Student agrees to the cost estimate and must have/deposit said amount in their PCounter WebPay account.
- File will not be printer/cut until student has enough funds in their account.
4) File is loaded into the software, and printing/cut process is started.
5) Once part is complete, parts may require some post-process work (vat use, curing, tab removal, etc).
6) Student is informed that part is complete. The student is charged for the fabrication of the part.
SCHEDULING YOUR PROJECT
a) Due to the nature of the 3D Printing process, once a project is begun, it must be completed in its entirety.
b) Projects will be completed on a first-come, first-served basis. There will be no exceptions. Please plan accordingly.
c) Students will be allowed to submit additional files for printing only after their name has been "worked" off the list. The only exception to this rule is that if the printer queue is totally empty, a student may sign up for one additional project.
d) Make sure you have sufficient money in your account before submitting a job.