3D Printer workshop 2016
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3D PRINTER WORKSHOPBitraf, April 13 2016
Jens Chr Brynildsen @jenschr / jenschr på gmail
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Jens Chr Brynildsen / @jenschr
bitraf.no
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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
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HOW DOES OUR PRINTERS WORK?
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180-250C
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ULTIMAKER ORIGINAL
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ULTIMAKER 2
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WHY WE LIKE ULTIMAKER?• Very solid construction / high speed printing• They are fully Open Source (hardware)• They actively supports CURA (Open Source software)
• They don’t launch a new model just to add a feature
• They sell kits that let owners of old models upgrade to the most recent tech
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FRAME
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ON / OFF
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WHEN THE LAST PERSON LEAVES -ALL 3D PRINTERS ARE TURNED OFF.
LONG PRINT? STAY AND READ A BOOK...
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4 AXIS
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X & Y AXIS
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Z-AXIS
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ENDSTOPS
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BUILD PLATFORM
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PLASTIC FEEDING
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HOTEND
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EXTRUDER
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BOWDEN TUBE
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ULTICONTROLLER
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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
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WHAT SOFTWARE SHOULD YOU DOWNLOAD?
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FOR ALL USERS
Download Curahttp://software.ultimaker.com
(Windows, Mac, Linux)
wifi password: grimbadgerassault
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CURA
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PLASTICS
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PLA
• melts at 50-70C• brittle / will snap• fully renewable• very easy to use• needs a fan
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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
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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
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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
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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...
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Ball Bearing in filament? Image by RichRap, http://richrap.blogspot.no/2012/06/jammed-frggn-nozzle-30doc-days-1518.html
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ALTERNATE SOFTWARE
• Check out Slicer http://slic3r.org/(for Windows, Mac & Linux)
• Simplify3D https://www.simplify3d.com/• Repetier Host for direct control of the printerhttp://www.repetier.com/download/
• Kisslicer & Netfabb may be interesting too
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PRINTING WORKFLOW
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WORKFLOW
1. Find / make model
2. Slice model & save to SD
3. Prepare the printer
4. Start printing!
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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
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2. SLICE THE MODEL
• Cura• Slicer• Kisslicer• Netfabb• Skeinforge / RepG
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CURA
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3. PREPARE THE PRINTER(All steps may not be required)
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3. PREPARE THE PRINTERPrepare the build surface
Image by Ultimaker
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PREPARE THE PRINTERLevel the print bed
Image by Ultimaker
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PREPARE THE PRINTERLevel the print bed
Image by Ultimaker
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PREPARE THE PRINTERLevel the print bed
Image by Ultimaker
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PREPARE THE PRINTERLevel the print bed
Image by Ultimaker
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PREPARE THE PRINTERLevel the print bed
Image by Ultimaker
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PREPARE THE PRINTERLevel the print bed
Image by Ultimaker
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PREPARE THE PRINTERLevel the print bed
Image by Ultimaker
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PREPARE THE PRINTERInserting filament & priming
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PREPARE THE PRINTERUse Ulticontroller to heat the nozzle
1. Push Encoder2. Select “Control”3. Select “Nozzle”4. Set to 210C
Image by Ultimaker
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PREPARE THE PRINTERWhen heated, open extruder latch
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PREPARE THE PRINTEROpen extruder drive
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PREPARE THE PRINTERInsert the filament
Insert filament all the waythrough the bowden tube. Push until it reachesthe extruder.
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PREPARE THE PRINTERClose and prime the extruder
Lock the extruder & thenturn the big extruder gearuntil you see plastic coming out of the nozzle.
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4. START PRINTING
1. Insert SD card2. Push Encoder3. Select “Print from SD”4. Scroll to the file & select
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WHEN THE LAST PERSON LEAVES - ALL 3D
PRINTERS ARE TURNED OFF.
NO EXCEPTIONS!
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Image from http://forums.reprap.org/read.php?392,375707
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Image from http://www.fabbaloo.com/blog/2014/7/13/near-disaster-while-3d-printing
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Image from https://groups.google.com/forum/#!msg/ultimaker/tOx2ED07F9A/YdNPOL8I8NwJ
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PRINTING BREAK...
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PRINTING RULES1.You break it, you fix
it
2.Keep the space clean. Don’t leave a mess.
3.For good prints - buy your own quality plastic. Keep it in a
bin in the Lab.
4.No unattended printing. When the last person leaves - all 3D printers are turned off along with all other equipment.
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HOW TO SOLVECOMMON PROBLEMS
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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
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HOTEND
Copper nozzle
Aluminium heater blockPeek tube
PTFE insert (White plastic)
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If you leave the extruderhot for a long time
you’ll create one of themost time-consuming
problems for yourself.
A plug forms here sincethe heat creeps up the
brown PEEK piece.
When you try topush warm plastic into
a tube, it expandsand creates a plug...
CLOGGED ABOVE HOTEND
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IF YOU CAN’T FIX IT?Always ask for help and if it can’t be fixed - leave a note so others know it’s not in working order!
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ABS PRINTING
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DIFFERENCES• Heated build platform• Kapton or PET tape• UHU glue stick• No print-fan• Enclosure
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PREVENTING WARPING
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WARPING
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POST-TREATMENT
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POST-TREATMENT
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QUESTIONS?