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Stepper motor controlers, building your own cnc driver xyz

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M|]{e

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make cnc without stepper

Hi; anyone have an interest in stepper motors and building the controler circuits?
Am new to this but learning the hard way (hehe) the trial and error method. Working on a cnc router/engraver right now.

Mike
 

unplugged

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cnc driver

i built one (max. 2A) with IC's L297A and L298 from SGS-Thomson and the PIC 16C56

good luck.
 

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M|]{e

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unc5804b

Hi unplugged

I am using the allegro UCN5804B chip on mine which only is good for 1.25 amps. While all my motors are 1.4 and 1.5, am looking to change this problem I hope, seems I am getting a fortune involved in current limmiting resistors every time I want to make a small change. But It is fun. haha
Mike
 

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srhoar

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cnc stepper motor controller

I do this all the time. There are many different ways. What are you using as a signal source? Computer, run/stop switches, or digital controls?

Take a look at my site to get a small application example.

h**p://www.susanandred.com
 

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gosth700

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cnc stepper controller

I'm using PIC16F877 + 2x LMD18245 from national to drive bipolar motors i have found this solution the simplest for me : the LMD18245 integrate an H-bridge ,555 ,protection diodes ,current sensing ,bootstrap cap , interface logic,and can drive current to max 3A.


<font size=-1>[ This Message was edited by: gosth700 on 2001-06-02 01:41 ]</font>
 

M|]{e

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lmd18245 cnc

I am new at this stepper motor control but have seemed to find quite a lot of information on the web. I would like to build a stronger controller later being that the Allegro only handles 1.25 amps but I wont to use this one to help make the pcb for the next controller. I started and am still working with a 3 axis controler kit from HobbyCnc. Already melted one controller chip. (hehe)Did not have the right current limmiting resistors and thought I was close enough. The kit was low priced and simple to construct, it uses the Allegro UNC5804B translator driver for unipolar stepper motors. My goal was to build a xyz router/engraver which can be ran from a pc. The control program I am using is a demo from Kellyware called kellycam, it seems to be a decent demo. I really need to find a good control program for this thing, these demo's time out or have a limit to the number of commands that will run. HeHe.

I have found a lot of stepper motor related items on Ebay including motors, controlers, linear slides and bearings. I have bought most of my stuff for the table from there.
 

billano786

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cnc stepper motor driver

well don't know how much is your budget and the kind of control you wish to build. if you can spend some money (approx 100$) then CY545B controller chip from cybernetic micro system can help you making real industrial class controller
 

M|]{e

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stepper motor cnc

Thanks billano786 will check that chip

Mike
 

billano786

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xyz bipolar stepper controller

combine the controller chip with ericssons PBL 3770 to make industrial grade high current SMCs
 

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