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3D Printer Workshop (Bitraf, April 2015)

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Slide deck from my 3DP workshop at the Bitraf hackerspace (http://bitraf.no) in Oslo, Norway. The example code can be found here https://github.com/bitraf/Cannybot-kurs

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3D Printer Workshop (Bitraf, April 2015)

  1. 1. Jens Chr Brynildsen / @jenschr bitraf.no Wednesday, April 15, 15
  2. 2. 3D PRINTER WORKSHOP Bitraf, September 24 2014 Jens Chr Brynildsen @jenschr / jenschr på gmail Wednesday, April 15, 15
  3. 3. OVERVIEW • How does our printers work? • What software should you download? • Printing workflow • Finding 3D models online • How to solve common problems • ABS printing • How to make your own 3D models Wednesday, April 15, 15
  4. 4. HOW DOES OUR PRINTERS WORK? Wednesday, April 15, 15
  5. 5. ULTIMAKER ORIGINAL Wednesday, April 15, 15
  6. 6. ULTIMAKER 2 Wednesday, April 15, 15
  7. 7. FRAME Wednesday, April 15, 15
  8. 8. ON / OFF Wednesday, April 15, 15
  9. 9. WHENTHE LAST PERSON LEAVES - ALL 3D PRINTERS ARETURNED OFF. LONG PRINT? STAY AND READ A BOOK... Wednesday, April 15, 15
  10. 10. 4 AXIS Wednesday, April 15, 15
  11. 11. X &Y AXIS Wednesday, April 15, 15
  12. 12. Z-AXIS Wednesday, April 15, 15
  13. 13. ENDSTOPS Wednesday, April 15, 15
  14. 14. BUILD PLATFORM Wednesday, April 15, 15
  15. 15. PLASTIC FEEDING Wednesday, April 15, 15
  16. 16. HOTEND Wednesday, April 15, 15
  17. 17. EXTRUDER Wednesday, April 15, 15
  18. 18. BOWDENTUBE Wednesday, April 15, 15
  19. 19. ULTICONTROLLER Wednesday, April 15, 15
  20. 20. OTHER PRINTERS? • All printers will have similar features/equipment • All you learn today will apply to other machines, but the physical layout may be different • Open Source printers encourage you to learn & print • Closed Source printers encourage you to print • Bitraf encourages Open Source Wednesday, April 15, 15
  21. 21. WHAT SOFTWARE SHOULD YOU DOWNLOAD? Wednesday, April 15, 15
  22. 22. FOR ALL USERS Download Cura http://software.ultimaker.com (Windows, Mac, Linux) Wednesday, April 15, 15
  23. 23. CURA Wednesday, April 15, 15
  24. 24. PLASTICS Wednesday, April 15, 15
  25. 25. PLA • melts at 50-70C • brittle / will snap • fully renewable • very easy to use • needs a fan Wednesday, April 15, 15
  26. 26. PLA ABS • melts at >110C • rugged / LEGO plastic • made from oil • requires special care • needs a heated bed • melts at 50-70C • brittle / will snap • fully renewable • very easy to use • needs a fan Wednesday, April 15, 15
  27. 27. PLA ABS • melts at >110C • rugged / LEGO plastic • made from oil • requires special care • needs a heated bed • melts at 50-70C • brittle / will snap • fully renewable • very easy to use • needs a fan Wednesday, April 15, 15
  28. 28. OTHER PLASTICS • PLA/ABS with additives • PET (Polyethylene terephthalate) / XT • Nylon / PC (Polycarbonate) / HIPS (High Impact Polystyrene) • NinjaFlex, EcoFlex, FlexiFil, Rubber-like • Woodfill/Copperfill, Laywood/Laybrick/BendLay • Poro-Lay (porous, fibrous, foam, felt, jelly consistency) • PVA (AquaSolve), thermocromatic Wednesday, April 15, 15
  29. 29. Image by George Roberts, http://gr5.org Wednesday, April 15, 15
  30. 30. Image by George Roberts, http://gr5.org Wednesday, April 15, 15
  31. 31. Image by George Roberts, http://gr5.org Wednesday, April 15, 15
  32. 32. Image by George Roberts, http://gr5.org Wednesday, April 15, 15
  33. 33. Image by George Roberts, http://gr5.org Wednesday, April 15, 15
  34. 34. FILAMENT TIPS • We have some donated plastic here to play with.YMMV • The “cheap plastic” is often expensive if time is a cost • Buy your own plastic to learn what you are printing with • Buying from a renowned vendor will save you time and grief (use Ultimaker, Faberdashery, DiamondAge, Ultimachine, GRFF or Protoparadigm) • Colorfabb’s PLA/PHA mixture can be difficult to work with unless you only print with that one plastic. It’s more sticky... Wednesday, April 15, 15
  35. 35. Ball Bearing in filament? Image by RichRap, http://richrap.blogspot.no/2012/06/jammed-frggn-nozzle-30doc-days-1518.html Wednesday, April 15, 15
  36. 36. ALTERNATE SOFTWARE • Check out Slicer http://slic3r.org/ (for Windows, Mac & Linux) • Repetier Host for direct control of the printer http://www.repetier.com/download/ • Kisslicer & Netfabb may be interesting too Wednesday, April 15, 15
  37. 37. PRINTING WORKFLOW Wednesday, April 15, 15
  38. 38. WORKFLOW 1. Find / make model 2. Slice model & save to SD 3. Prepare the printer 4. Start printing! Wednesday, April 15, 15
  39. 39. 1. FIND A MODEL • Thingiverse.com • Youmagine.com • Cubehero.com • Bld3r.com • Github Read more at http://richrap.blogspot.no/2014/05/makerbot-patents-twist-knife-on-open.html Wednesday, April 15, 15
  40. 40. 2. SLICETHE MODEL • Cura • Slicer • Kisslicer • Netfabb • Skeinforge / RepG Wednesday, April 15, 15
  41. 41. CURA Wednesday, April 15, 15
  42. 42. 3. PREPARETHE PRINTER (All steps may not be required) Wednesday, April 15, 15
  43. 43. 3. PREPARETHE PRINTER Prepare the build surface Image by Ultimaker Wednesday, April 15, 15
  44. 44. PREPARETHE PRINTER Level the print bed Image by Ultimaker Wednesday, April 15, 15
  45. 45. PREPARETHE PRINTER Level the print bed Image by Ultimaker Wednesday, April 15, 15
  46. 46. PREPARETHE PRINTER Level the print bed Image by Ultimaker Wednesday, April 15, 15
  47. 47. PREPARETHE PRINTER Level the print bed Image by Ultimaker Wednesday, April 15, 15
  48. 48. PREPARETHE PRINTER Level the print bed Image by Ultimaker Wednesday, April 15, 15
  49. 49. PREPARETHE PRINTER Level the print bed Image by Ultimaker Wednesday, April 15, 15
  50. 50. PREPARETHE PRINTER Level the print bed Image by Ultimaker Wednesday, April 15, 15
  51. 51. PREPARETHE PRINTER Inserting filament & priming Wednesday, April 15, 15
  52. 52. PREPARETHE PRINTER Use Ulticontroller to heat the nozzle 1. Push Encoder 2. Select “Control” 3. Select “Nozzle” 4. Set to 210C Image by Ultimaker Wednesday, April 15, 15
  53. 53. PREPARETHE PRINTER When heated, open extruder latch Wednesday, April 15, 15
  54. 54. PREPARETHE PRINTER Open extruder drive Wednesday, April 15, 15
  55. 55. PREPARETHE PRINTER Insert the filament Insert filament all the way through the bowden tube. Push until it reaches the extruder. Wednesday, April 15, 15
  56. 56. PREPARETHE PRINTER Close and prime the extruder Lock the extruder & then turn the big extruder gear until you see plastic coming out of the nozzle. Wednesday, April 15, 15
  57. 57. 4. START PRINTING 1. Insert SD card 2. Push Encoder 3. Select “Print from SD” 4. Scroll to the file & select Wednesday, April 15, 15
  58. 58. WHEN THE LAST PERSON LEAVES - ALL 3D PRINTERS ARE TURNED OFF. NO EXCEPTIONS! Wednesday, April 15, 15
  59. 59. Image from http://forums.reprap.org/read.php?392,375707 Wednesday, April 15, 15
  60. 60. Image from http://www.fabbaloo.com/blog/2014/7/13/near-disaster-while-3d-printing Wednesday, April 15, 15
  61. 61. Image from https://groups.google.com/forum/#!msg/ultimaker/tOx2ED07F9A/YdNPOL8I8NwJ Wednesday, April 15, 15
  62. 62. PRINTING BREAK... Wednesday, April 15, 15
  63. 63. PRINTING RULES 1. You break it, you fix it 2. Keep the space clean. Don’t leave a mess. 3. The printers are a membership advantage. Only Bitraf members may use the printers (as well as other machines). 4. For good prints - buy your own quality plastic. Keep it in a bin in the Lab. 5. No unattended printing. When the last person leaves - all 3D printers are turned off along with all other equipment. Wednesday, April 15, 15
  64. 64. HOWTO SOLVE COMMON PROBLEMS Wednesday, April 15, 15
  65. 65. SWITCHING PLASTICS • Feed plastic manually until new color shows • Keep extruding for a while or do a test print • Old colors will keep contaminating your print until you got it all out • Slightly hotter temp may help cleaning out the old Wednesday, April 15, 15
  66. 66. GREAT HELP-SITE! Wednesday, April 15, 15
  67. 67. HOTEND Copper nozzle Aluminium heater block Peek tube PTFE insert (White plastic) Wednesday, April 15, 15
  68. 68. CLOGGED HOTEND (A) 1. Warm extruder to 200C 2. Hold aluminium block still with a wrench 3. Use another wrench to unscrew the copper tip. Can’t be done when cold! 4. Heat copper using a burner 5. Insert a piece of ABS/PLA firmly into the warm tip.Wait a few seconds and pull back.This removes plastic & impurities 6. Use the wire of a resistor to push any impurities into the nozzle tip & then do #4 + 5 until clean 7. Re-assemble while warm or it won’t fit Wednesday, April 15, 15
  69. 69. If you leave the extruder hot for a long time you’ll create one of the most time-consuming problems for yourself. A plug forms here since the heat creeps up the brown PEEK piece. When you try to push warm plastic into a tube, it expands and creates a plug... CLOGGED HOTEND (B) Wednesday, April 15, 15
  70. 70. To solve this, you need to: 1. Heat the extruder & retract the filament 2. unscrew the long screws 3. Lift out the hotend assembly so you can remove the plug 4. Screw the thing back together while you make sure the bowden tube is flush with the white plastic piece that goes into the brown peek. Any gap there will allow plugs to form again. CLOGGED HOTEND (B) Wednesday, April 15, 15
  71. 71. COLD-PULL Wednesday, April 15, 15
  72. 72. OTHER ERRORS? jenschr [ på ) gmail { punktum ) com Wednesday, April 15, 15
  73. 73. ABS PRINTING Wednesday, April 15, 15
  74. 74. DIFFERENCES • Heated build platform • Kapton or PET tape • UHU glue stick • No print-fan • Enclosure Wednesday, April 15, 15
  75. 75. WARPING http://i.imgur.com/h3fyXCp.jpg Wednesday, April 15, 15
  76. 76. WARPING http://i.imgur.com/h3fyXCp.jpg Wednesday, April 15, 15
  77. 77. PREVENTING WARPING Wednesday, April 15, 15
  78. 78. WARPING Wednesday, April 15, 15
  79. 79. POST-TREATMENT Wednesday, April 15, 15
  80. 80. POST-TREATMENT Wednesday, April 15, 15
  81. 81. QUESTIONS? Wednesday, April 15, 15

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