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Link
Modular
Board Function
Motor
Max Motor**
Steps
Current limiting
Mardus-Kreutz Unipolar
 Self Contained 3 Axis Inf/Stepper Driver Unipolar 8A 50-80VDC Full-microstep chopper 50V(IRL540n)80V(IRL640n)
PIC based 3 Axis
 Self Contained 3 Axis Inf/Stepper Driver Unipolar 5A 30VDC Full None (chopper adapter in work)
3 Axis
 Self Contained 3 Axis Inf/Stepper Driver Unipolar 5A 30VDC Full None alone Chopped With adapter board
A3977
 Modular 1 Axis Stepper Driver Bipolar 2.5A 35VDC*** Micro to Full Chopper SS PCD
5804
 Modular 1 Axis Stepper Driver Unipolar 1.25A 35VDC Full/Half None
Discrete
 Modular 1 Axis Stepper Driver Unipolar 5A 30VDC Full None
L297 Uni
 Modular 1 Axis Stepper Driver Unipolar 5A 35VDC Full/half Chopper
L297-8
 Modular 1 Axis Stepper Driver Bipolar 2A 46VDC Full/Half Chopper
SLA7062
 Modular 1 Axis Stepper Driver Unipolar 3A 46VDC Micro to Half Chopper
SLA7051
 Modular 1 Axis Stepper Driver Unipolar 2A 46VDC Full/Half Chopper
PICstep
 Modular 1 Axis Stepper Driver Bipolar 3A 55VDC Micro to full Chopper, Thanks Alan!!!!
Interface
 Modular DIY 4 Axis PC interface N/A N/A N/A N/A DB25 to IDC
Interface
 Modular DIY 5 Axis PC interface N/A N/A N/A N/A DB25 to IDC
Interface
 Modular 4 Axis PC interface N/A N/A N/A N/A A compatable 4 Axis interface board, Thanks Chris!!
Interface
 Modular 4 Axis fast OptoIso interface N/A N/A N/A N/A DB25 to IDC with High Speed Opto Isolators
Interface
 Modular DB25 to screw terminals N/A N/A N/A N/A Ribbon DB25 to Screw terminals, rectifier, 5vdc, estop, offboard leds, Awsome Mhel!
Interface
 Modular USB Interface 4 Axis Interface N/A N/A N/A USB to 10 pin interface board, Excellent Bert!
DB25
 Wiring Break Out Board N/A N/A N/A N/A DB25 to Screw Terminals
** Absolute Max Voltage including back emf and line variations *** A3977 sensitive to the 35V max
May-06 Chris Radek's 4 axis interface pcb, thanks Chris!
May-06 Steve Thomas's Engraver using the 1X72805 (3977 boards), thanks Steve!
Link Information
General informaion on stepper based systems
Step Motors Sources for Stepper Motors
Step Motor Basics Outstanding writeup at Geckodrive on steppers and power supplies and performance, a must read!!!!!!!!
Stepper Drivers More in depth information on stepper drive electonics
Six Wire Motors More in depth information on six wire 2 phase stepper motors
LPT Port Software pinout information on the PC Parallel Port
Links on making pcb's
Milling PCBs Screen shots on setting up PCB G-code
pcbmaking.htm Basir Itan's illustrated guide to toner transfer PCB making
PCB Isolation Routing CNCZOnes 10Bulls PCB Isolation Routing Info Page
Making an IDC cable A great pictorial explanation on making ribbon cables for the DIY'er
Power supply information
Linking PC supplies A great pictorial explanation on using multiple PC/AT power supplies together
DC PS explanied A great Simple explanation on DC power supply basics
simpleps.htm A relatively cheap simple 32VDC 10A power supply
Stuff :-)
interface.htm Interface technical information
Troubleshoot Help Troubleshooting Help
lprobe.htm A simple logic probe and explanation
steves.htm Steve Thomas's Machine using the 3977's
Convert your PC to a 6 axis CNC controller for $159
Other DIY Free Stepper Driver Links

PICSTEP stepper   Simple AVR stepper driver   NUTsVOLTS Article   Hans Wedemeyer's Driver and Motherbaord   A Discrete Bipolar design  
A Logic Design and explanation   L297-298 based board with Eagle files   Pic bipolar board   PLD based 2 axis bipolar board  
Nice AVR Link
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Updated 7-1-2008 Created on ... June 18, 2004
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