Showing posts with label Calibration. Show all posts
Showing posts with label Calibration. Show all posts

06 June, 2014

My first 3D print with PLA - a Gear Bearing

To test the PLA material I never printed with until now I printed some planetary gears.

This is a customized version of Emmet's Gear Bearing on Thingiverse. The tolerance is set to 0.3 in the customizer. I'll print another one with 0.1 as these are even a bit too loose...
Printed in PLA, extruder @ 200°C, heatbed @ 65°C, layer height 200µm, (still no cooling, I really need to connect my PLA extruder fan to my electronics!)



07 April, 2014

Calibration calibration calibration...

Perimeter Width - Calibration
Oozebane & Bridging calibration
Bridging Calibration - This box is hollow.
Marvin v1 & v2

31 March, 2014

Calibration - Layer Height

To continue the RepRap calibration process (yes you really need that much calibration) I printed an object to verify the Layer height.
The object printed perfectly but I noticed my wall thickness is 0.75mm instead of 0.40mm. Something that needs some investigation. I also verified that the X and Y axis calibration is perfect now; 20mm in any software gives an object of exactly 20mm!

Object: 4-mm-wall.stl by muelli from Thingiverse
Hotend: 245°C 1st layer, then 240°C
Heatbed: 110°C
Material: 3mm ABS (Silver from RepRapUniverse.com)
Layer height: 0.2mm
Wall thickness: 0.4mm
Infill: 100%

Static props: 0.4mm nozzle, E3D All metal hotend, MK2a heatbed, Gcode generation with Slic3r, Pronterface, Sanguinololu, Ice Blue Stepsticks, NEMA17 motors, Prusa i3, Achatz Edition, ATX powered 400W



20 March, 2014

A more complex calibration object...

Object STL: 5mm Calibration Cube Steps by MCroucher on Thingiverse
Material: 3mm ABS (Velleman from reprapuniverse.com)
Hotend: 245°C 1st layer, then 240°C
Heatbed: 115°C 1st layer, then 110°C
Heatbed adhesion: 3 layers of Fructis Bamboo Extract Hairspray, extra hold nr 6
Layer height: 0,2mm
Nozzle: 0,4mm
Gcode generated with Slic3r
Object printed with Pronterface

Issues


  • the 10mm bridge is not that clean, the 5mm bridge is perfect though
  • object is warping after some layers, need to find out why (more adhesion needed?, heatbed temp too high?, etc?)
  • corners for short edges are more rounded off than corners for long edges (top 5 mm)

Good stuff


  • Extrusion calibration is near perfect
  • X, Y & Z-axis calibration is near perfect (calipers confirm!)


Maybe try PLA next?