Mini-Rambo 1.3 Mainboard Integrated Controller Board + 4pcs Heatsinks For Prusa i3 MK2 3D Printer
Description
Description:RAMBo (RepRap Arduino-compatible Mother Board) is an all in one RAMPS class motherboard targeting convenience, reliability, and performance.Features:Logic - Arduino MEGA compatible Atmega2560 and Atmega32u2 processors are compatible with all RAMPS class firmware- Crystals for both usb and mcu (timing accurate to 10ppm)- 4 Thermistor jacks- All extra pins broken out on both processors (allows using the 32u2 for LUFA AVR programmer, etc.)- 2 channel SDRAMPS compatible SPI breakoutMotor Drivers- 5 A4982 1/16th microstep motor drivers (A4984 1/8th prior to v1.1) (2 connectors on Z for Prusa Mendel and other dual Z printer designs)- Digital Trimpot for stepper current control- Current limit on driver IC VCC to prevent permanent latchup- Microstep mode configured by MCU through firmware (no jumpers needed)- Test points for driver control signals- Step and Direction pins are on their own ports for synchronous movement capability- Extra driver ports broke out for up to 3 additional drivers (some of the motor extension pins are shared with max endstop and a pin allocated for SPI-SS extensions)PWM DC outputs (Extruders, Fans, Etc.)- 6 outputs- Low resistance mosfets for cool running- Indicator led for each channelPower- Three independent power rails for flexible input power configurations- Heated Bed, 15A 12-24V (version earlier than 1.1 limted to 14A 16V due to fuse rating, see rambo_development for hacks)- Extruders and fans, 5A 12-24V (fuse can be exchanged for up to 10A capacity) 10V-26V input voltage- Motors, 5A 12-24V (fuse can be exchanged for up to 10A capacity) 10V-26V input voltage- Built in SMPS for 5V generationPCB- 4 layer- 2oz copper on all layers- High quality, High temperature FR4-TG130 PCB- Gold ENIG finishingPackage Included:1x Mini-Rambo 1.3 Mainboard1x USB cable2x Terminal4x Heatsinks
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