Two Trees BlueR - 3D Printer

Documentation, firmware and set of utilities for my own use and personal needs. Thanks Tiago Silva for his original repository.

Improved Components and Updates

• Wireless Printer Monitor and Controller using old android phone Octo4a
• Anti-backlash Spring Loaded Nut - T8 - Smooths lines on the z axis
• Stepper Motor Driver - TMC2209 at X, Y, Z and E - ultra-silent controllers
• Auto Leveling Sensor - 3D Touch - Automatic and improved bed leveling
• Glass on the heated bed plate 235mm x 235mm x 4mm - better adhesion and flatness surface
• Premium Ultra-Quiet Fan Cooler - Noctua NF-A4x10 FLX + DC-DC Buck Converter with LM2596
• Silicone cover for heated block - MK8 Cover

Firmware

Versions	Marlin 3D Printer Firmware (from release-2.1.2 compiled 2023-02-17) + BlueR v3 Marlin Configurations (from release-2.1.2 compiled 2023-02-17)

Compiling settings

Using Auto Build Marlin:

Machine Specs

Parameter	Value
Number of nozzles	1
Construction volume	235mm * 235mm * 280mm
Printing method	SD-Card / online printing (by Serial UART communication through printer USB connector and some internet interface)
IHM	3.5 inch color touch screen
Machine speed	10~300mm/s
Print speed	20~200mm/s
Extrusion head temperature (highest)	260 °C
Maximum hot bed temperature (highest)	100 °C
Printing platform	Warm bed
XY axis positioning accuracy	0.01mm
Z axis positioning accuracy	0.004mm
Recommended printed material	PLA, ABS and PETG
Consumable filament diameter	1.75mm
Print file format	G-Code
Machine size	L=410mm * W=400mm * H=520mm
Machine weight	7.5kg
Power supply	127V~220V/240W
Microcontroller	STM32F103VET6 datasheet
Motor Driver	Stock TMC2209 datasheet
Stepper Motor	US-17HS4401S datasheet
Motherboard	MKS Robin Nano v1.2 schematic (source HW + FW)
Display	MKS Robin TFT35(FSMC) (schematic not available)

More information on the manufacturer's official website: https://twotrees3d.com/

Notes

Cellphone battery replacement

Print Samples

Tools & Utensils

Dust Filament Filter (STL)

Calibration & Tests

XYZ Cube (STL)

BlueR Self-Upgrades Parts

BLTtouch Support (front mounting) (STL)

Printer Details