From Measurements to MakerBot

From Clothbot

Revision as of 03:37, 13 August 2010; AndrewPlumb (Talk | contribs)
(diff) ←Older revision | Current revision | Newer revision→ (diff)
Jump to: navigation, search

Contents

From Measurements to MakerBot

Step-by-step instructions for calibrating and characterizing a stock-built MakerBot, followed by a set of measurements to perform and their relationship to SkeinForge settings.

Initial Assembly Calibration

The Threaded Zed Stage

Threaded Rod Bearing Brackets

Drive Belt Tension

Stepper Driver Current

Stepper Direction

Leveling Four Corners

Cartesian Build Platform

Smooth Rod Brackets

Drive Belt Tension

Stepper Driver Current

Stepper Direction

Leveling the Build Platform

Plastruder Placations

PTFE Passage

Idler Pressure

Check for Short and Opens

Operational Calibration

Firmware Upgrades

MotherBoard Firmware

Extruder Firmware

Extruder Checklist

Thermistor Calibration (Beta Calculation)

Heater Control System (PID Parameters)

Noodling Nitpicks

Noodle Diameter

  • Free-space diameter used for all skeinforge settings.

Reversal Parameters

  • Firmware controlled oozebane


SkeinForge Simplified

Movement

Travel Rates

Materials

Feed Rates

Picking Zed-Slice Thickness

Walls and Shells

Old (Wet) ABS

  • Measured filament width: 0.60mm
  • Temperature: 190C

Carve Setting Variations:

  • Defaults
    • Time to pause (ms): 5
    • Time to reverse (ms): 500
    • Time to advance (ms): 44
    • Min. Extrusion time before reversal (mm): 44
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 1.0 3.65
  • Test 1
    • Time to pause (ms): 0
    • Time to reverse (ms): 0
    • Time to advance (ms): 0
    • Min. Extrusion time before reversal (mm): 0
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 1.24 blob
  • Test 2
    • Time to pause (ms): 5
    • Time to reverse (ms): 250
    • Time to advance (ms): 44
    • Min. Extrusion time before reversal (mm): 44
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 1.0 1.0


  • Test 3
    • Time to pause (ms): 5
    • Time to reverse (ms): 125
    • Time to advance (ms): 44
    • Min. Extrusion time before reversal (mm): 44
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 0.87 1.0
  • Test 4
    • Time to pause (ms): 5
    • Time to reverse (ms): 125
    • Time to advance (ms): 22
    • Min. Extrusion time before reversal (mm): 22
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 1.0 blob
  • Test 5
    • Time to pause (ms): 5
    • Time to reverse (ms): 125
    • Time to advance (ms): 33
    • Min. Extrusion time before reversal (mm): 33
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 1.0 blob
  • Test 6
    • Turn off Skeinforge Oozebane.
    • Time to pause (ms): 5
    • Time to reverse (ms): 125
    • Time to advance (ms): 33
    • Min. Extrusion time before reversal (mm): 33
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 1.0 space
  • Test 7
    • Wobble Arrestor
    • Time to pause (ms): 5
    • Time to reverse (ms): 125
    • Time to advance (ms): 33
    • Min. Extrusion time before reversal (mm): 33
Layer Thickness (mm) Extrusion Width over Thickness (ratio) Measured Wall Width (mm) Measured Wall Start/Stop Gap (mm)
0.36 1.45 ... ...

Filled Volume

Raft vs Raftless

Models

Overhangs

Support Structures

Bridges

Holes

Test Pieces

Positive Space

Cube

Long Walls

Tall Structures

Negative Space

Vertical Holes

Horizontal Teardrops

Adjacent Edges

Personal tools