Stepper Drivers: Difference between revisions
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* Large Traces, easy use the [[Toner Transfer Method]] | * Large Traces, easy use the [[Toner Transfer Method]] | ||
* Lowest cost components | * Lowest cost components | ||
* Pretty | * Pretty (haha oh boy did I miss that mark) | ||
===Design 1=== | ===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 [http://www.solarbotics.com/products/k_cmd/ Solarbots K CMD] | 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 [http://www.solarbotics.com/products/k_cmd/ Solarbots K CMD] | ||
Schematic: | |||
[[File:Hbridge_driver_schematic.png|300px]] | |||
Board: | |||
[[File:Hbridge_driver_board.png]] | |||
===Design 2=== | ===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 [http://www.instructables.com/id/Easy-to-build-CNC-Mill-Stepper-Motor-and-Driver-ci/ this instructable] | This design includes two logic ICs, a CD4516BE and a CD4028BE, 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]. You can watch a video of it making the lights blink and the wheels turn [http://vimeo.com/8534601 on vimeo]. | ||
[[File:L298_Half_Step_Complete_Schematic.png|300px]] | Schematic: | ||
[[File:L298_Half_Step_Complete_Schematic.png|300px]] | |||
Board: | |||
[[File:L298_Half_Step_Complete_Board.png|300px]] | |||
===Design 3=== | ===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. | 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. | ||
Schematic: | |||
[[File:MM_Stepper_Driver_V2_Schematic.png|300px]] | |||
Board: | |||
[[File:MM_Stepper_Driver_V2_Board.png|300px]] | |||
===Reference=== | ===Reference=== | ||
[http://www.cs.uiowa.edu/~jones/step/ Jones on Stepping Motors] | [http://www.cs.uiowa.edu/~jones/step/ Jones on Stepping Motors] | ||
Latest revision as of 18:00, 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 (haha oh boy did I miss that mark)
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
Schematic:
Board:
Design 2
This design includes two logic ICs, a CD4516BE and a CD4028BE, 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. You can watch a video of it making the lights blink and the wheels turn on vimeo.
Schematic:
Board:
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.
Schematic:
Board:
