Troubleshooting common challenges with 3d printers

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Getting A Good Print What do you control? A Valid Model A Working Machine Calibration

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How to troubleshoot common challenges with desktop 3D printers, as presented by Lars Brubaker, CEO of MatterHackers at the 2014 3D Printer World Expo.

Transcript of Troubleshooting common challenges with 3d printers

Page 1: Troubleshooting common challenges with 3d printers

Getting A Good Print What do you control?

• A Valid Model

• A Working Machine

• Calibration

Page 2: Troubleshooting common challenges with 3d printers

Calibration Getting the First Layer Right

• Absolutely the most important part of your print

• 99% of all problems happen on the first layer

• If the first layer is good the rest probably will be

Page 3: Troubleshooting common challenges with 3d printers

What to do? Level The Bed

• Nothing is more important

• Nothing will help if this is not right

• More tips - after we level…

Page 4: Troubleshooting common challenges with 3d printers

How to Measure Level Use a Drop Indicator

Advantages

• Very accurate

Disadvantages

• May be un-mountable

• Cumbersome to use

Page 5: Troubleshooting common challenges with 3d printers

How to Measure Level The paper method

Advantages

• Works on all printers

Disadvantages

• What is correct paper

• What is correct preasure

Page 6: Troubleshooting common challenges with 3d printers

How to Measure Level Just eyeball it!

Advantages

• We all have the equipment

• Easy to use

Disadvantages

• Some printers not visible

• Takes some finesse

Page 7: Troubleshooting common challenges with 3d printers

X-Axis Leveling If 2 lead screws (x-axis)

• Move carriage to left

• Move extruder to bed

• Move carriage to right

• Adjust screws to fix height

• Repeat until level on x

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Bed Plate Leveling With adjustable sprung bed

• Loosen back right screw

• Move extruder to corners

• Adjust other 3 screws

• Repeat until level

• Tighten back right o Just touching plate only

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Bed Plate Leveling If bed has under adjustment screws

• Same procedure as last

• Some printers can be

adjusted while printing.

Page 10: Troubleshooting common challenges with 3d printers

Software Leveling MatterControl

• Included Software Print Leveling

• Wizard samples bed at 3 points

• Corrected while printing

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LEVELED! Your printer should now be level! What’s next?

• Z-Height

• Filament Settings

• First Layer Speed

Page 12: Troubleshooting common challenges with 3d printers

Z-Height • Depends on the printer

• Most are z-min

• Common procedure 1. Tighten z-pin

2. Home z axis

3. Adjust z-pin as needed

4. Back to step 2 until just on bed

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Filament Settings Common Settings That Will Help You

• First Layer Temp o Just Hot Enough to Stick Well

o Raise the temperature 5°c until sticking well

o Approximately 10-15° hotter than the rest of the print

• Extrusion width of 200% is good

• Make Sure First Layer Height is Tall Enough o Good setting is ½ Extruder Diameter

o .4mm nozzle = .2mm first layer height

Page 14: Troubleshooting common challenges with 3d printers

First Layer Speed It is Very Simple - Go Slow

• 20 mm/s is a good start

• Make sure moves are also slow

• We set a fixed number rather than a percent

Page 15: Troubleshooting common challenges with 3d printers

Thank You! More info available at MatterHackers.com

You can also contact me directly

[email protected]