3D printing

Bozzle Tungsten Carbide Nozzle – 0.5mm

The Bozzle nozzle is the very first high flow (and lower back pressure) tungsten carbide nozzle for 3D printing applications.

Tungsten carbide nozzles are capable of printing all 3D printing filaments due to their exceptional hardness, ultra high operating temperature and high thermal conductivity.

0.5mm orifice
No inserts – constructed out of a solid piece of tungsten carbide there are no inserts here
Non stick surface finish
Significantly increased layer to layer adhesion at same printing temperatures vs hardened steel nozzles
Compatible with V6 and MK8 hotend heatblock

This nozzle requires hot tightening. Install the nozzle, heat hotend to 20c over desired use, and hand tighten with a 6mm or 1/4″ socket.

This nozzle will print every material.

Prusa Mini Bear +

I made an overview of all mods done to my Prusa Mini + 🙂
With lots of thanks to so many different people on Thingiverse and Printables

Prusa Mini+, mellow V6 alu cold block/heatsink, mellow brass heater block, mellow silicon heater block sock, E3D v6 Titanium heatbreak 1,75 mm (origineel), Bondtech CHT 0.4mm nozzle, LDO Orbiter 1.5 extruder, Weishuo 24V-10A-240W PSU, Raspberry Pi 3a, Argon1 FanHat, Raspberry Pi PSU 5.1V 2.5A MicroUSB, Prusa Stepper motor Z-axis, Misumi Linear bearings kit + superlube, AluX Bear mini 2040 extrusions, GT2x6 mm Kevlar-reinforced timing belt (2,5 meter), USB-USB-c kabel, wiring + plugs, printed parts, High Power MOSFET 30A, fans, PrintBay Heat bed insulation, buck converter

update mcu klipper on prusa mini

try mainsail.ip or mainsailos.local


putty into your Raspberry Pi:

cd ~/klipper/
make menuconfig

Enable extra low-level configuration options
STMicroelectronics STM32
Bootloader offset to 128KiB + 512 byte offset
Clock Reference to 12 MHz crystal
Communication interface to USB (on PA11/PA12)

close and save


switch off mini (only)
put on pin over 2 prongs on pcb buddy board
switch on mini

sudo service klipper stop
make flash FLASH_DEVICE=0483:df11
sudo service klipper start

switch off mini (only)
take off pin over 2 prongs on pcb buddy board
switch on mini

restart firmware in mainsail

Original Prusa Mini+ Bear mod

today, I finished the main modification of the printer (I only want to change the wires soon) so the whole frame is changed, the hot-end, extruder, heatbreak and nozzle, and all printed parts were PETG are now ASA, instead of a Cantilever design it is now an H-frame with double Z axles, so the frame gives rigidity and structure to the printing, yet still running the original Prusa firmware (with some added G-codes)

Electronics on my mind

laying it out

Mounting the electronics on a rear panel, facing forwards, I only have ~73mm space, so while using DIN rails, I sought other cooling options, so three 60mm fans mounted at 90 degrees it is then 🙂

playing with pwm controller:

Slicer Flow Calibration

New heater block (Slice Engineering Copperhead), heater cartridge (Sidewinder X1 64Watts 24V), thermistor (E3D PT1000), nozzle (Micro Swiss M2 Hardened High Speed Steel Nozzle) and fan (Sunon MF40202V2-A99-A), doing some test printing and tuning via https://teachingtechyt.github.io/calibration.html#flow

RatRig preparations

BOM Orbiter, Mosquito, endstops, BLTouch and fan ducts https://main.eva-3d.page/