Difference between revisions of "Stepper Drivers"

From Hive76 Wiki
Jump to: navigation, search
(Created page with ''''Stepper Motor Driver Design''' Adam Kaufman is working on designing stepper motor drivers that are easy to make and assemble at home. ===Design Goals=== * Single Sided …')
 
Line 11: Line 11:
 
This design includes two logic ICs to control the step and direction and the L298 to control the actual motor. Kind of a composite of Design 1 and the Easy CNC Driver from [http://www.instructables.com/id/Easy-to-build-CNC-Mill-Stepper-Motor-and-Driver-ci/ this instructable]
 
This design includes two logic ICs to control the step and direction and the L298 to control the actual motor. Kind of a composite of Design 1 and the Easy CNC Driver from [http://www.instructables.com/id/Easy-to-build-CNC-Mill-Stepper-Motor-and-Driver-ci/ this instructable]
 
===Design 3===
 
===Design 3===
This design is basically Design 2 with a somewhat failed attempt at a 555 timer to do adjustable PWM. Technically this design works (in a simulator), but I was having all kinds of problems making it work in the real world. I've considered a few other ways of doing this, but I kind of gave up at this point and ordered a couple L297s.
+
This design is basically Design 2 with a somewhat failed attempt at a 555 timer to do adjustable PWM, which is required for my high-torque motors. Technically this design works (in a simulator), but I was having all kinds of problems making it work in the real world. I've considered a few other ways of doing this, but I kind of gave up at this point and ordered a couple L297s.
 
===Reference===
 
===Reference===
 
[http://www.cs.uiowa.edu/~jones/step/ Jones on Stepping Motors]
 
[http://www.cs.uiowa.edu/~jones/step/ Jones on Stepping Motors]
Since I'm using high torque steppers, I needed to control the current to the motor. You can do
 

Revision as of 02:00, 26 February 2010

Stepper Motor Driver Design Adam Kaufman is working on designing stepper motor drivers that are easy to make and assemble at home.

Design Goals

Design 1

This is a simple L298 board. If you have a microcontroller doing the hard work for you, and depending on your motors, this may be a good fit for you. Based off the Solarbots K CMD

Design 2

This design includes two logic ICs to control the step and direction and the L298 to control the actual motor. Kind of a composite of Design 1 and the Easy CNC Driver from this instructable

Design 3

This design is basically Design 2 with a somewhat failed attempt at a 555 timer to do adjustable PWM, which is required for my high-torque motors. Technically this design works (in a simulator), but I was having all kinds of problems making it work in the real world. I've considered a few other ways of doing this, but I kind of gave up at this point and ordered a couple L297s.

Reference

Jones on Stepping Motors