3D Printer Quality Control

Quality Control Requirements - 12 Kits at a Time

To test 12 kits at a time, it is useful to set up rapid testing procedures for parts.

From the 3D Printer Packing List:

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Perfect Prints

To guarantee perfect prints, the following conditions must be met:

1. Extruder steps per mm are correct. See Triffid Hunter's Calibration Guide
2. Axes must be able to move freely. See 3D Printer Manual - final assembly for procedure to mount axes
3. Axis range of motion must be over the entire bed. Do D3D Burn-In for 20 minutes to verify all motion.

Corresponing Quality Control Steps for Perfect Prints

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Burn-In

See document:

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Z Offset

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• Use Cell Phone Microscope and reference object for height, such as 0.4 mm needle
• Optimize Z offset from extruder. Measure variation over multiple prints and graph the results for a 2 cm square.
• Measure variation over perimeter and graph this variation.

Bed Adhesion

• Optimize heated bed temperature. Measure force required to pull a columnar object off the bed using a digital scale

Smooth and Tight Motion

1. Measure axis tightness using a force meter. Use a Digital Scale to record the force required to move an axis.

Extrusion

1. E steps/mm must be done only once, and must be captured in Marlin or in Start G-Code
2. Optimize temperature for a given filament. See Triffid Hunter's Calibration Guide

Electronics

• See [1]

Links

• For OSE's 3D printer stable release, this can be done once: Triffid Hunter's Calibration Guide