3D Printer Certification

3D Printer Certification
Version	0.1.0
Approval Date	2020-11-05
Prerequisites
Document/Printout	3D Printer Certification
Required For Tools/Shops	3D Printers

Student:
Trainer:
Date:
Version:	0.1.0 - 2020-11-05

Certification required for: 3D Printers (Digital Fab. and Electronics Lab)

DO NOT USE THIS PAGE AS A SIGN OFF SHEET

Please print the document from the download link in the top right of the wiki page instead!

Training Check-Off List:

Please note that the person to-be-certified is not allowed to have this list during certification. After successfully demonstrating knowledge in these areas, a member will be certified and can schedule the 3D printers.

Tool Anatomy

• Identify the general parts of a 3D printer:
  • User interface (Taz 6)
  • Power switch
  • SD card slot (Taz 6)
  • USB port
  • Control knob (Taz 6)
  • Extruder
  • Print surface / print bed
  • Lead screw
  • Tool head
  • Hot end
  • Nozzle
  • Filament holder
  • Filament
  • Cooling fan(s)
  • Wiping pad
• Identify the differences between the Taz 6 and the Mini
• Identify the X, Y, and Z axis

Pre-Operation

Printer preparation

• Prepare the bed
• Wipe down with isopropyl alcohol
• Confirm nozzle wiping pad is clean

Models and Slicing

• What is the name of the software used for preparing models for the printers? (Cura Lulzbot Edition)
• What kind of file types can be loaded into Cura?
• What is the difference between saving for Cura and saving for printing?
• How does Cura handle inches versus millimeters?
• Demonstrate the ability to set up a print:
  • Set material type
  • Set the correct quality / speed profile
  • Confirm the model fits on the print bed
  • Confirm the model is oriented correctly
  • Basic understanding of supports and why they may or may not be necessary
  • Can manipulate the model and view in Cura
  • What is infill?
  • What are the build plate adhesion types and why are they necessary?
    • Skirt
    • Raft
    • Brim
  • Can preview the printed model by changing the view from Solid to Layer

Octoprint

• Know how to get to the Octoprint web page via the wiki
• Can login and generate an API key for Cura (this is fine if it’s already done, just confirm knowledge)

Connecting to the Printer from Cura

• Connect to the Mini and set the temperature via the Monitor tab (requires connecting to Octopi)
• What kind of filament type is recommend at the CMS (PLA)
• What is the diameter of the filament used by the CMS printers (2.85mm or 3mm)

Load and unload filament

• When changing filament types, what temperature is it recommended for you to set the hot end to? (The higher recommended print temperature of the two filament types)
• Identify parts related to loading and unloading:
  • Idler retainer
  • Hinged idler
  • Drive gear
  • Hobbed (ridged) extruder bolt
  • Feed hole
  • Hot end
  • Nozzle
• Complete load or unload process
• What to do if the printer is not extruding?
  • Repeat
  • Check idler retainer springs (to* tight, to* loose)
  • Check hobbed bolt (contact shop lead)
  • Contact shop lead

Operation

• Describe the expected machine response when a print is started
• Describe the expected machine response when a print is in progress
• Describe the expected machine response when a print is finished

Post-Operation

• How do you remove a print?
• Clean up

CMS Etiquette

• If both printers are available, which should you use? (The smallest one that can print your part.)
• How is scrap / waste filament handled (Trash can. Only leave a failed print in the shop if you have shop lead permission.)
• Honor box instructions
• Reporting problems (yellow tag outs, email address)
• Resource scheduler

CMS Safety

• Where is the fire extinguisher?
• Where are the light switches?
• Who to contact if there is a problem

Pass/Fail:

Comments:

Student Signature:		Date
Certifier Signature:		Date

Certifer: Please scan this QR Code to email info@claremontmakerspace.org, and include a list of students who have passed this test.

Then, return this form to the front desk (even if the student failed!).