|
We all need some inspiration from time to time. Andrew is a 13 year old from Canada who is doing some electronic experimenting. He built this stepper motor controller and single axis CNC machine from recycled parts from old computer equipment. Looks like he loves hot glue as much as I do. "I am 13 I have always wanted to build a cnc machine but because inexpensive parts are hard to find in Canada I have had trouble trying to build a decent cnc controller. The purpose if this Instructable is to show that anyone can build a cnc controller using an old scanner. The scanner I used was an old OpticPro scanner. I had previously extracted the stepper motor and experimented with it but not considered it for a cnc controller. All of the controllers on the Internet had a large number of expensive transistors or were ridiculously complex. I finally stumbled across this controller and realized I could build it. By reusing the parts from the old scanner and making the case from recycled cardboard, I am cutting back on my impact on the planet."
|
May 2012 is to anxiety major disorder side lexapro .
Comprehensive accurate side information consumers and professionals augmentin .
Finasteride names and by among generic is synthetic propecia .
Finasteride is only medications by drug drug.
|
| ||||||
|
All he needs now is a few more scanners to make his single axis CNC machine into a 3 axis unit. Just for safety I might suggest using a metal case for housing the electronics just incase something overheats. An old AT power supply housing looks like it could work well and already has lots of vent holes and a fan that could be left in place.
April 10th, 2009
It’s always neat to see electronics made with wood.
April 10th, 2009
No worries about anything shorting out.
April 11th, 2009
And wood (and his cardboard case) is a lot easier to cut with a hobby knife.
I like this. If only scanners were this readily available when I was 13!
April 17th, 2009
[...] paso a paso con el puerto paralelo cuando me encuentro con que se me han adelantado. Hackaday y Hackedgadgets se las han arreglado para reseñar el mismo día este instructable sobre como controlar los [...]
March 13th, 2010
hello.. can u email me all the information to do this things. i really like to make it one..
hope u can help me from A to Z by the info.
March 13th, 2010
Hi Zul,
There is a link in the article that should help.
March 13th, 2010
i have 4 stepper motor, but none of then have 5 wire like the example.. mine have 4 and 7 wire.. how do i can connect them?
March 13th, 2010
Step 4 shows how to hook it up. The 4 wire stepper is a bipolar one and will not be able to be used with that drive circuit.
March 29th, 2011
You actually can hookup a 4-wire stepper to a ULN2003 (or better yet ULN2803 – it has 8 arrays instead of 7) but you can only use 1/2 of the motor supply voltage ’cause that’s the only way to create the negative voltage needed to drive the bipolar steppers without the common point in the windings. I did a write-up about this here http://elabz.com/driving-a-bipolar-stepper-motor-with-arduino-and-uln2803ag . You can see the circuit used on that page. Note that the sequencing comes from an extra MCU (Arduino), not a PC and it’s a different sequence from what was used in the instructable which was based on a unipolar (5+ wires) stepper.
In any case, in principal, yes, you can drive a bipolar 4-wire stepper with a ULN2803 or ULN2003.