Melxlxtreme R1
Melxlxtreme R1 Specs
The project started as a 1 meter Cartesian Cube. But for easy transportation around the house, I had to reduce the printer width to 83 cm from 1 meter.
Printer details can be found below ;
Max tested printing speed : 150mm/s
Best results as of now : 75mm/s with 550 acceleration & 0.04 junction Deviation
Printer dimensions :
Length : 120 cm
Width : 83 cm
Height : 83 cm
Current Print Dimension :
60 × 60 × 50 cm
Print Dimension upgradable :
120*83*83 cm
Endstops set to : 48x * 38y * 28z cm
Firmware :
Marlin 2.0.6.1 upgraded to 2.0.8.2 with SKR2
Steps per unit
A4988 (100, 100, 2600, 95)
DRV8825 (200, 200, 5200, 190)
Iinear Advancement K = 0.22
Baud 250000
# printing Material (All metal)
[PLA, ABS, Nylon, ASA, TPU etc]
# 1.75mm filament
# 100k ntc b 3950 Thermistor
# 12v 40w heating cartridge
# E3D V6 All Metal J-Head Hotend Extruder
PID Tuning
195°c
Kp : 41.88
Ki : 7.41
Kd : 59.18
185°c
Kp : 42.65
Ki : 7.23
Kd : 62.90
# Fat Nema extreme Extrusion stepper
# 5mm glass Bed
# Heavy wooden framework for vibration absorption.
# 0.4mm nozzle (0.2-2mm range)
# print cooling fan + Motherboard cooling
# RGB Printing Lights
# Arduino Mega R3 2560 upgraded to SKR2
# A4988 Driver upgradable to TMC
# 12v 20A power supply
# Isolated power supply for LED and Ramps Cooling
# Full Graphic Display
# 8mm SS rod with steel LM8UU
# PTFE tube with Bowden Extrusion
# Smooth wheels for printer transportation
# LED spot light for print Highlights
# 1 meter PTFE tubing (upgradable to y filament splitter)
THE DRAGON VASE
The dragon vase is the first overnight print of Melxlxtreme R1. The printer continously printed for 22:30 hours without any issues such as nozzle clog, under extrusion, power failure, wrapping, or any other problems.
The print consumed over 65 meters of 1.75mm filament which weighs around 206 grams.
The vase has 152mm height with 115mm diameter
and 9mm wall thickness.
The First Print
The very first print was pretty much disappointing resulting in a ball of plastic goop. This was a result of inexperience in 3D Printing as it requires a lot of calibration and printing experience which were solved in the next few weeks as mels continuous trial and error with different parameters in slicing software and as well as hardware configurations.
The Z banding
The Z Banding started to appear on the prints. During the early stages this wasnt an issue as the focus was on calibrating the printer and not the surface quality. But once the calibration was completed, Mels learned that by tweaking the slicer settings, the Z banding can be reduced. So it is not a hardware issue from the printer. It is also noticed that the use of different filament gave different quality with Z banding ranging from medium to higher. Another factor is that the climate with rain and moisture effected the print quality depending on the day. Both the issues were solved later with better surface quality and consistent layers.
As more and more prints were done, Mels learned to tweak the settings further and improve the quality beyond what was ever predicted from a wooden printer.
GALE CRATER
The Gale Crater in Mars was printed to explore the martian surface and explore the possibilities of setting up a 3D printer on a terrain like this as Mel believes in a martian colony in the near future. To push the limits of possibilities and face new challenges to seek more knowledge as failure opens new possibilities and innovations.
20mm Cube infront of vase
Big Vase Bottom
The biggest vase printed upto date has an amazing 27 cm width by 20 cm height with just 0.4 mm thickness, which shows how precise the printer can print without any gaps or underextrusion. The Big vase was one of the first print using Red filament, A lot more tunings and calibrations were done with future prints as you can see in the other prints with red filament.
MELXLXTREME GCODE
START GCODE
G21 ; Millimeter units
G90 ; Absolute XYZ
G28 ; Home all axes
G1 Z5 F100 ; Z raise
M109 S240 ; Wait for nozzle temp
G92 E0 ; Reset extruder distance
G1 F2000 E10
M106 P0 S20
M117 Melxlxtreme Active
G1 X140 Y170 E5 F1550 ; move to start
G1 Z-0.19 F1200 ; Move to layer height
END GCODE
G91 ; Relative position
G1 E-12 F1300 ; Retract 12mm at 1300mm speed
G0 Z4 F2000 ; fast move z +4
M104 S0 ; Turn off nozzle heater
G90 ; Absolute Position
G28Y ; Home Y
M84 ; Disable steppers
M300 P250 S262
M300 P25 S0
M300 P250 S330
M300 P172 S0
M300 P184 S311
M300 P250 S415
M300 P180 S0
M300 P256 S233
M300 P250 S349
M300 P184 S0
M300 P250 S262