SAV MKI

SAV MKI

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SAV MKI

Release status: working

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Description	SAV MKI
License	???
Author	User:fm
Contributors
Based-on	[[]]
Categories	Electronics, Mendel_Development, SAV, Electronics development, single-sided through-hole electronics
CAD Models
External Link	http://www.electrofunltd.com/

Descripción. This 3D printer board electronics has been designed and developed using all the great contributions and feedback from the RepRap CloneWars group in Spain. All shortcomings from other similar boards have been addressed providing an affordable yet feature rich 3D printer electronics.

Features

Feature rich yet affordable 3d printer electronics. The SAV MkI has been designed after taking feedback from the Clone Wars RepRapers out there. We have come through with an electronics that we believe will meet your expectations.

• Hotend and heatbed well dimensioned FETs that can take up to 15A without heat-sinks.
• High speed native USB interface connectivity going up to 8Mbps so that there is no lag on your prints.
• 12V built-in fan controller for your layer fan or hot end cooling.
• Micro SD reader for autonomous printing.
• Bluetooth dongle (dongle not provided, tested with HC-05 and HC-06) interface adapted to its logic levels for wireless operation.
• Expansion bus to connect a keyboard and LCD.
• Support for 4 standard pololu compatible stepper motor drivers.

Specifications

HW

Processor

Atmel AT90USB1286 Microcontroller @16 MHz Native USB interface Supply

Voltage input

12V-20V

Internal regulated voltage

5V and 3.3V

Logic supplied by on-board voltage regulator through Vin Logic can also be supplied through USB (internal source selection).

Connectivity

2 x 15A switching connectors 1 x switching N-MOSFET for low power fan. on board uSD connector Bluetooth interface output levels adjusted for 3.3V logic (connected to UART1 - Rx and Tx). Four Endstop connectors supplied @ 5V. Includes X, Y, Z and E 2 Thermistors 14 Extra pins available for expansion and development, with the following capabilities -- UART1 (RX and TX) -- I2C (SDA and SCL) -- SPI (MOSI, MISO, SCK) -- PWM pin (1) -- Analog I/O (6) -- JTAG (uses some of the ADC pins)

Dimensions

100mm x 65mm

SW, Firmware and SDK

• Marlin (pre-loaded) - Marlin´s main branch already supports the SAV-MkI (MOTHERBOARD==83)
• Bootloader: LUFA's CDC Bootloader
• SDK: Arduino IDE with Teensy add-on.
• Windows users only, will need to install USB Serial device (will be downloaded with the Teensy environment).

Schematic

External links

Indiegogo [1]