Velleman K8200 MKS Base Conversion

thingiverse

This is a guide on how to convert the Velleman K8200 printer to using the MKS Base CPU board. What you'll need: 1 x printed MKS Base mount 6 x M2x16 screws & nuts 1 x MKS Base board (preferably v1.4 or v1.5) 1 x RepRap Discount Smart Controller (optional) 1 x MKS Base TFT (optional) 1 x 12V/24V fan (optional) 2 x XH2.54 2 pin female headers with cables (red and black) 3 x XH2.54 3 pin female headers with cables (red, black, yellow) 5 x XH2.54 4 pin female headers with cables (white, yellow, black, red) Thin cables for wiring extensions Heat shrink sleeves Soldering iron Solder Cable ties Arduino software for adjusting Marlin settings Instructions: 1) Remove and desolder all existing header cables from the old Velleman board, marking each cable for its function. For example, X, Y, Z, E1, Fan, Zmin, Ymin, Xmin, Heater etc. 2) Attach the MKS Base to the mount and attach it to the printer. 3) Cable soldering: Use 2 pin headers for thermal sensors, 3 pin headers for end stops, and 4 pin headers for motors and extruders. Motors and Extruders: To 4 pin header: Green > White (1A) Blue > Yellow (1B) Yellow > Black (2A) Orange > Red (2B) For X motor: Red > White (1A) Blue > Yellow (2A) Green > Black (2A) Black > Red (2B) X > X motor Y > Y motor Z > Z motor Extruder > E0 motor End Stops: To 3 pin header: Red on new header - CUT OFF Red > Black - GND (middle) Brown > Yellow - D pin X header to X Min Y header to Y Min Z header to Z Min Thermal Sensors: To 2 pin header Red > Red Brown > Black (You may have to extend these cables with extra wiring) Extruder header to A13 Bed header to A14 Fans: Red to + Black to - To add an optional 12v/24V extruder heatsink fan, wire it to XS1 power socket with incoming power cables. Heaters: (these are the multi-twisted cables) (bottom) Bed to Heater bed terminals (top) Extruder to E0 terminals Power: Power supply to XS1 Red to + Black to - For RepRap Discount Smart Controller (optional): EXP1 to EXP1 EXP2 to EXP2 For MKS Base TFT (optional): LCD cable AUX to AUX 4) Update configuration.h in firmware: change #define MOTHERBOARD 78 to #define MOTHERBOARD 33 For RepRap Discount Smart Controller: edit line 306 to: #define REPRAP_DISCOUNT_SMART_CONTROLLER 5) Save and upload new firmware changes