Shenzhen Big Tree Technology Co., Ltd.
BIGTREETECH
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Product Profile
BIGTREETECH Octopus MAX EZ, a 32 bit motherboard, is an upgraded version of
Octopus Pro developed by the 3D printing team of Shenzhen Big Tree Technology Co.,
Ltd. Its self-developed stepper motor sockets enhance safety and user experience, and it
adds a series of features that Octopus Pro does not have, greatly enhancing its DIY
capabilities.
Feature Highlights
1. 32 bit 550 MHz ARM Cortex-M7 series STM32H723ZET6 MCU;
2. Onboard BOOT button to enable DFU mode to update bootloader;
3. The thermistor circuit is protected to prevent MCU damage from shorted heated bed
and heater cartridge connections;
4. Selectable voltage (24V, 12V, 5V) for CNC fan, no more need for external stepdown
thus preventing board damage from user error;
5. Upgraded with eFuse protection, which responses faster with strong protection,
effectively protecting the motherboard from being damaged caused by short circuits,
over-current, electric spark, etc.
6. MCU firmware can be upgraded via SD card, or use DFU via Klipper's make flash
command;
7. 10 EZ driver sockets, working with pinless driver, safer to use; Onboard SPI and
UART, can be used by simply setting in the firmware, no need for a jumper.
8. Support power loss recovery, filament runout sensor, CAN, auto power-off, BLTouch,
RGB, etc;
9. Replaceable fuse for easy maintenance;
10. 3 x 4 pins fan ports, also for connecting water cooling system;
11. Onboard proximity switch port, supports NPN and PNP types, 24V, 12V, 5V voltage
selectable;
12. Onboard SPI interface for connecting acceleration sensor to enable Klipper's input
shaping.
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