Stepper Drivers: Difference between revisions
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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] | ||
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
- Single Sided PCB
- Large Traces, easy use the Toner Transfer Method
- Lowest cost components
- Pretty
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.
