K8400 Plotter

thingiverse

You need: * 1 Slider printed part * 1 Holder printed part * 1 Nail 4mm x 50 * 1 bearing LM6UU * 1 axle 6mm, 75mm * 2 screws M3x10 + washer * 3 screws M3X4 to mount the spring * 1 screw M3X8 to tighten the pencil * 1 SG90 Mini servo * 3 wired ribbon cable 130mm long with pin connector * 1mm wire (nail e.g.) * 2 cable end sleeve 1.5mm * 1 pressure spring OD10mm 18mm Patch the Firmware: You can get the firmware source code from the Vertex homepage at https://vertex3dprinter.eu/downloads/vertex-downloads/ (choose for 1 or for 2 extruders) In Configuration.h enable NUM_SERVOS and set it to 1 #define NUM_SERVOS 1 In Pins.h set: #define SERVO0_PIN 53 Then use Arduino 1.6.0 to upload the program to your printer Installing the Ribbon Cable: Uninstall the Display controller board and attach the 3 ribbon cable to the back of the socket where the cable from the motherboard connects MINUS, PLUS, SS are pins 2, 6, 16 Install back the Display controller. Then guide the cable nicely to the Hotend Preparing the Hardware: * File the head of the nail to be almost half * Cut it to a length of 50mm * Thread the cable end sleeves to a helping wire and solder it onto the end of the spring * Attach the lever to the servo and drill a 1mm hole into the end Assembling the plotter: * Clean up the prints and support the holes with a drill. The diameters are 12mm, 4mm, 2.5mm * Insert the axle into the holder * Insert the nail into the holder and glue it * Insert the servo into the holder and mount it * Insert the LM6UU into the slider * Insert the M3x8 screw into the slider (will tighten the pencil) * Put the spring onto the glider and mount it with 3 screws * Combine the holder and the slider and attach the spring with the servo with a wire Install the plotter into the place of 2nd nozzle with the 2 screws and washers from the bottom. Plug in the Servo and watch for correct polarity. (MINUS, PLUS, SIGNAL) is essential. Testprogram: G28; Auto-home G0 X75 Y100; go to start of circle G4 P100; wait until arrived M280 P0 S60; lower pen G2 X75 Y100 I50 J0; one full circle G4 P100; wait until complete M280 P0 S90; lift pen M4; end of Program Look at this: https://youtu.be/ijZioF61R2k Any kind of contributions are welcome! Happy plotting