To calculate power supply requirements: Motor Voltage/Motor Coil Resistance = amperage per coil. Tools:Īdditionally, a power supply will be required. Or Get a CNC Machine Kit with Driver, Motors, Power Resistors and Wire, It can Be found Here Optional:įemale DB-25 have different pin outs, and can not be substituted. 1x 16 pin DIP socket A Full kit with all the Components, PIC Micro, and PCB Can Be Purchased 8x 10k ohm 1/4w resistors - Brown - Black - Orange 12x 1kohm 1/4w resistors - Brown - Black - Red 12x logic level MOSFETs TO-220 package, i chose IRL630A or RFP12N10L or FDP8878 20 mhz series oscillator, a regular one could be subed, just need to add 2x 22pf caps to gnd PIC16f870 - DIP or a PIC16F876A(must use a different firmware)
Notice 6/21/12: Get A free 3-Month Instructables Membership Code with the purchase of a CNC Kit with a driver, motors, wire, and resistors. *UPDATE: Added the HEX files that use the PIC16F876A instead of the 16F870.ĭisclaimer: Even though this is opto-isolated there still is a danger to your parallel port if a short were to occur. Those who purchase Kits or programmed PIC will receive the source code for Free. The source code is written in Assembly and can be purchased Here Included in the ZIP below are the files for the Copper-side, the Top-Side layer, Datasheet and the drill files. Or Grab the a combined PCB & programmed PIC Microcontroller
Printed Circuit Boards are Available with Free Shipping and Programmed PIC Microcontrollers can be purchased 3 Axis CNC Driver Kit, Assembly and Testing can be added. Get a Full 3 Axis CNC Kit with Driver, Stepper Motors, Power Resistors, all the electronics and wire needed, excluding a PSU. Or 2 Amps per phase.įull Kits with all the parts needed to recreate this Instructable can be purchased on my Website Simple driver with automatic coil shutdown, to ensure efficient operation. Controls 3 Unipolar Stepper Motors, for use with CNC Machines.
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