Last edited: Haley Holcomb (08/26/22)
Tool Lead: Jason Wei & Andrew Furst
Contact: jwei@ucsb.edu & Andrewfurst@ucsb.edu

• Components Overview: thermoplastics, extruder, print head, print cores, build plate
• Safety: hot printheads & bed, moving components
• Job Setup
  • At the computer: CAD → export .stl → Cura (print parameters, support materials) → export .gcode/.ufp → USB stick → plug into printer → record in FBS
  • At the printer: clean print bed
• Part Removal Cleaning
  • Scraper, cold water rinse, warm bath support removal process
• Rates

• Both print heads and bed are heated during operation. Do not attempt to clean, remove, or adjust without allowing for adequate cool down time.
• Keep hands clear of printer during operation. Pause print before clearing or adjusting print.

• Inadequate part adhesion to the bed - can cause print failure or breakage of entire print head assembly
  • Can be prevented with proper bed cleaning, use of hairspray, bed adhesion print settings, and high enough printing temperature
• Not drying PVA (can apply to PLA as well) dissolvable support material for at least 10 hours prior to print - can cause PVA to stop extruding during a print, resulting in print failure

1. Launch Cura version 5 (dark blue icon)
2. Select printer and material(s) (ensure material is under 'Ultimaker' material section) on top selection bar
3. Select File → Open Files → Open desired project (.STL file type)
4. Using task bar on the left hand side, position model as desired
5. Under print settings, reset all print settings to default by → going to custom tab → open Profile drop down menu → select desired slice height → open Profile drop down menu again → select “Discard current changes” (if greyed out and not selectable, then the settings are already default)
6. Switch back to “Recommended” print settings for ease of use
7. Adjust infill percentage and support
8. Support can be generated using ether nozzle, typically nozzle one holds build material with nozzle two printing with dissolvable support material
   • PVA support material needs to be dried in PrintDry container for at least 10 hrs prior to printing
9. Ensure “Adhesion” is selected
10. Save the .gcode (file type Ultimaker 3 uses) or .ufp (file type Ultimaker S5 uses) file from Cura to a USB drive
11. Select “PREVIEW” tab on top of screen to preview print
    • Specific layer cross sections can be viewed by adjusting slider to the right of screen
12. Remove glass build plate (pull open clips first), bring to fume hood #3 (spray booth)
13. Spray build plate with IPA and wipe off with paper towel
14. Spray thin layer of hairspray on build plate to ensure bed adhesion
15. Reinstall build plate into printer (secure using clips)
16. Connect thumb drive to printer → select desired file → select print
    

Note: If adjusting advanced print settings, please do so after creating a separate/duplicate print settings profile (do not change default print setting profiles). Adjusting settings may lead to more (OR LESS) successful prints. Contact Workshop Wizard responsible for Ultimaker if print fails or knowledge of advanced settings is desired.

• Remove part from print bed using a scraper (if part is too hard to remove, remove print bed and rinse part under cold water for 20 seconds)
• If support was constructed from ABS carefully break away with pliers
• If support was constructed from PVA soak part in warm water for several hours to dissolve support structure

• Remove part from print bed using a spatula or razor being careful not to cut yourself or scratch the build plate. Make sure no body part is in line with the tool should it slip or the part break free unexpectedly.
• If support was used, submerge print in warm water for several hours to dissolve PVA filament. (prints can warp if submerged in water for over 24 hours) <
  ultimaker_3_sop.txt · Last modified: 2022/08/27 00:18 by haley

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