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GLKLN Documentation
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Release status: working

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GLKLN designed by Konstantin Gulitski.
CAD Models
External Link


The main idea of this printer is to create a new design of a 3D printer with a cubic cartesian scheme which includes as many as possible parts from plastic. I.e. it supports the RepRap concept to create some kind of easy reproducible 3d printer to make it more achievable for a wide engineer society. One of the main concepts is that all plastic parts designed to be printed by one hotend 3d printer without using supports.


This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit [1] or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.


Working volume (max) 240mm (X) x 290mm (Y) x 310mm (Z)
Working volume (nominal) 220mm (X) x 220mm (Y) x 210mm (Z)
Working materials PLA, ABS, others
Nominal Speed 120mm/sec
Max Speed 200 mm/s (depending on the object to be printed)
Filament 1.75mm
Configuration XYZ Cartesian drive using stepper motors
Computer interface USB
Layer thickness Adjustable 0.1mm, 0.2mm, 0.3mm, 0.4mm
Material handling Two fixed material deposition extruders
Hotend nozzle size 0.1mm, 0.2mm, 0.3mm, 0.4mm
Positioning accuracy XY 0.1 mm
Motherboard Makerbase MKS Gen L V1.0
Power supply 25A/12V DC, 300W
Firmware Marlin
Host SW Repetier-Host
Exterior dimensions 528 mm wide x 541 mm deep x 433 mm high
Weight about 18 Kg
Cost < $300 (USD)

Main improvements

The following is a list of the main improvements made upon the Prusa Mendel Iteration 2

  • Enhanced frame rigidity (prevents x-axis backlash)
    • Easy assembly
  • Parametric files for multiple sizes/bearings or bushings


This is the first version that represents the nominal configuration. Several parts planned to be developed such as a cable holder, filament roller holders, ventilation system for hotends. The development of the GLKLN is hosted on the: [2].



Printed Parts

files for the printed parts are available on the: [3].

Bill of Materials (BOM)

The updated version of the BOM can be downloaded from the project repository on the: [4]


Stepper Motors

The GLKLN uses, including the two extruders, 6 stepper motors. Two of these motors, the Z-axis motors, are connected to the same stepper driver of the electronics.

Controller Electronics

The GLKLN uses MKS Gen L motherboard. Because RepRap printers compatibility it can be based on the other RepRap controller boards.


Heated Bed

Filament Holder