Tag Archives: calibration

Fine tuning of Z height at zero

Posted on April 21, 2019 by janpenguin

Printed first layer of the model has to smaller than equal to the first layer height in slicer.   After upgrading MK2S to MK2.5S, I did fine tuning of Z height at zero by measuring the thickness of first layer. I … Continue reading →

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Steel Fisher – retraction calibration

Posted on October 19, 2016 by janpenguin

I was printing a big model that has heavy support. It had a lot of retraction and during the printing, the nozzle hit a piece, dislocated, then spewing filament in the air. Two hours and 46 minutes of work wasted. … Continue reading →

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Original Prusa i3 MK2 – calibration and first printed object

Posted on October 15, 2016 by janpenguin

XYZ Calibration compromised. Front calibration points not reachable. The solution of this error, the user manual says Move the left / right Y threaded rods in the Z frame away from you This is wrong.  I had to pull the … Continue reading →

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Few comments about Mini Kossel

Posted on November 21, 2015 by janpenguin

I want to discuss about one critical component that’s neglected by many builders. Qualtity and build precision of diagonal rod assembly dictates Mini Kossel’s printing quality and potential operational errors that would drag the user down. Six diagonal rod’s length … Continue reading →

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RepRapPro Fisher – 4

Posted on August 10, 2015 by janpenguin

I figured it out why the shortage of filament extrusion last night finally. The right amount of force against filament at the geared shaft and idler bearing requires to provide good retraction. Extruding filament after specified length of filament retraction, … Continue reading →

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RepRapPro Fisher – 3

Posted on August 9, 2015 by janpenguin

Excessive rubbing between the bowden tube and Y endstop cable caused disconnection one of the endstop terminals. 7:56:10 AM M32 Robot.g File Robot.g selected for printing 7:54:03 AM G32 Calibrated 4 factors using 4 points, deviation before 0.640 after 0.000 … Continue reading →

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First layer of the printing object is so critical.

Posted on April 7, 2015 by janpenguin

I play in the ten micron (0.01 mm) world. I’m so close to finalize Bulbul Junior 3D Printer but apparently there is one issue I have to solve, which is the Z height changes after few printing session. I suspected … Continue reading →

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Bulbul Junior 3D Printer operation log – Day 8 (2nd week of 3/2015)

Posted on March 13, 2015 by janpenguin

The major cause of excessive uneven print bed was the loose joints of four diagonal rods. Source http://boim.com/misc/deltaCalTools.zip # octave script # # Current Delta geometry values: # X (Endstop Adj): -8.29 # Y (Endstop Adj): -7.19 # Z (Endstop … Continue reading →

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Building of Mini Kossel 3D Printer – 23

Posted on February 14, 2015 by janpenguin

Building of Mini Kossel 3D Printer – 22 Carriage of the linear rail has grease injection port at top and bottom. General purpose syringe can be used as the grease gun. I named this Kossel Mini as “Bulbul Junior.” Almost … Continue reading →

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Building of Mini Kossel 3D Printer – 22

Posted on February 11, 2015 by janpenguin

It turned out each Kossel Mini kit maker uses modified Marlin firmware that suits their 3D Printers. Marlin Blomker version which I’ve referenced heavily started working flawlessly right after the upload firmware. avr-objcopy -O ihex -R .eeprom /tmp/build5776194644516541631.tmp/Marlin_delta2.cpp.elf /tmp/build5776194644516541631.tmp/Marlin_delta2.cpp.hex Binary … Continue reading →

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