Comments on: 3in1 Stepper Motor Controller

By: CNC Controller made from scanner components | YourITronics

CNC Controller made from scanner components | YourITronics — Wed, 22 Apr 2009 22:44:42 +0000

[...] heart of each CNC machine, and many more automated systems for that matter, is the stepper motor. This motor allows for precise control over the spin of it’s rotor by applying pulses [...]

By: Florin

Florin — Wed, 03 Dec 2008 09:49:25 +0000

Dale that will take allot of your time, but it will be really nice to see it in action, also I think it will be the first DIY pick and place machine

By: Dale

Dale — Wed, 03 Dec 2008 08:14:47 +0000

Nice project. I am looking to apply this to use old inkjet motors to implement an smt pick and place machine.

Dale

By: Florin

Florin — Thu, 27 Nov 2008 10:43:15 +0000

you can find my email address at the contact page

By: sloso

sloso — Wed, 26 Nov 2008 20:22:50 +0000

Hi florin, so I thank you(uploaded schematic). I want to send you my schematic. Can you write me your mail adress, pleace. If you send me your mail, I will send you my schematic. Can you check it, if is it working.

Thank a lot.

By: Florin

Florin — Wed, 12 Nov 2008 21:34:12 +0000

sloso, I’ve uploaded the new schematic, source code and application. You’ll find download links at the end of the article.

and don’t forget to mention the source of the files if you’re making a public project

By: sloso

sloso — Wed, 12 Nov 2008 18:25:57 +0000

hi florin,what’s my next steps then?I’ve already got 2 unipolar stepper motors and i have to make my own pcb..What do you suggest?I want to control those motors with atmega8 and communicate with Pc through serial port.

Thank you.

By: Florin

Florin — Wed, 12 Nov 2008 11:21:04 +0000

florinx, the drivers used in the project were LB1836

By: Florin

Florin — Wed, 12 Nov 2008 11:09:21 +0000

sloso, you can’t use ULN2803 because the drivers need to be PNP or non-inverting but I’m not saying this is not possible at all, it’s just you’re gonna need to add more components to use ULN2803. so before the ULN you’re gonna need transistors to invert the current outputed by the microcontroller, in standby the mcu has logic 1 on all outputs and when it is runing it outpus logic 0 on the selected output. If the middle windings are connected to Vcc then the drivers needs to non-inverting. If the middle windings are connected to GND then you must use PNP transistors. But you can’t use motors with voltage greater than 5V in the case of PNP transistors as for the other case you can even use motors with 1KV voltage if you have the coresponding transistors

sloso, i talked to morgoth the author and he said he’ll upload a new ROM for you to use with ULN2803

florinx the parts list is coming in a couple of minutes

By: florinx

florinx — Tue, 11 Nov 2008 12:50:32 +0000

Hello!
It would be very useful if you post a list with all the components used in this project. Some of us use Eagle which can’t open the .max file.

Thank you.