RAMPSXB
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Release status: Working
| Description | RAMPS eXpansion Board
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Summary
RAMPSXB (RAMPS eXpansion Board) is a shield that attaches to the AUX pins of the common 3D printer control board, RAMPS.
It adds 4 additional stepper motor driver carriers, 4 additional thermistors, 4 additional PWM-controlled MOSFETs, EXP1 and EXP2 for an LCD controller (such as the RepRapDiscount Smart Controller), additional VCC pins, 5V pins, regulated TX/RX for an HC-05 chip, and suppression capacitors on the minimum endstops, similar to the RAMPS 1.4.2.
This allows for a variety of combinations, including 6 completely separate extruders, or a mixing extruder and a few fans, or a mixture of voltages (12V on the main RAMPS, and 24V on the RAMPSXB).
RAMPSXB consumes the maximum endstops, as well as servo pins 2, 3, and 4 to drive the FETs.
Pin Definitions
E2 Direction - 15
E2 Step - 19
E2 Enable - 63
E3 Direction - 2
E3 Step - 39
E3 Enable - 58
E4 Direction - 42
E4 Step - 44
E4 Enable - 49
E5 Direction - 32
E5 Step - 47
E5 Enable - 57
Thermistor T3 - A11
Thermistor T4 - A12
Thermistor T5 - A10
Thermistor T6 - A5
MOSFET H3 - 4
MOSFET H4 - 5
MOSFET H5 - 6
MOSFET H6 - 45
Open Source Files
EAGLE files can be found here: https://github.com/SZiv/RAMPSXB
Where to get it?
No manufacturers for this yet. ¯\_(ツ)_/¯ Nothing is too hard to solder, so if you can get ahold of the board, its not very hard to assemble.
