3-Axis Stepper Controller

[averagejoe1]

thanks for your version, i got tired of being lazy and got ghostscript so i could view them. i cant find any places that would have the chip "UCN5804B". i dont have a credit card but i can send money order. does anyone have any extra or if i could pay someone to get a hold of one that would be great. the cnc tutorial listed on engadget shows a picture of the circuits and things and it looks like they baught theirs as a kit. if anyone knows of how to get a kit or would be willing to throw it together 4 me its worth 40-50$. sorry for all the questions but i'm only 13.
some close up pictures of your pcb board would  be apreciated.
thanks

 

[gogo2520]

hello averagejoe

  Here you go joe
http://www.alltronics.com/cgi-bin/category.cgi?item=25I001

if you go to there home page and hit the help link it well how to buy with cash
                                              hope that helps
                                                    gogo

 

[averagejoe1]

thanks for the link and stuff. I saw it was 8.50 for 1 so i went shopping Around more and found it on sale for 5.50 from http://www.futurlec.com and they sell some other things i need. so if anyone else needs one there only 5.50 at futurlec.

 

[averagejoe1]

Hey my CNC mill is coming along alright... I am still stuck on how to do the electronics. Could someone take some pictures of their CNC electronics just take about 10 close ups of your board. it would help alot. i'm a visual learner. I will post sum pics of my project later today. I will give credit to anyone who helps with my project. I'm entering it into our science fair. thanks alot...
averagejoe

 

[averagejoe1]

hello, I just got some pics of my project but my camera battery died so I only have 4 the first two are atached and they are of my (1) my frame and base and the second is just of the threaded rod and hex nut I am using that will allow the first axis to move. You can also see I am using copper pipe and some plastic pipe as sliders. This is all stuff you can get from home depot. I may have to buy a different stepper motor to suit the electronics because this is a four wire motor. And most of the stuff I am seing is for five and six wire motors. My table is pretty large so i don't consider it just a pcb milling table. it's going to be a 3x3x1 <- The 1 is the z axis .

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[averagejoe1]

Here is the other two pictures I have they are both really to bright to view. I had the flash on by accident. no wonder I only got 5 min's of battery life. They are both pictures of my stepper motor and my other hex nut i have on the end so i can connect the motor with the threaded rod. Buy some J-B weld while doing your project it helps with everything you would consider weldng. after that stuff dries it is literally as tough as steal. you can get it at canadian tire.

View attachment 39603

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[nikolaw]

hi
can i use the power supply from the pc for the board whit
+5V for driver for step motors or i need separate power supply
thanks

 

[MP1]

I use a pc power supply with no problems. It actually works much better than the linear one I had previously since it does not generate heat.

MP

 

[nikolaw]

Thanks MP
u use red wire and black from pc and u connect whit bord?
i will  use Kcam sof. for thish cnc is there any problem whit this softwere
I't is simle to setup kcam whit pc and bord?
Thanks

 

[MP1]

On mine, I actually use the 12 volt for the steppers and the 5 volt for the digital portion of the circuit. Yes, you just connect the wires to the power lines. If you want to add fuses, it is a good idea. I cut a lot of corners on mine becuase I had to build it fast to get a large number of circuit boards drilled before a deadline. Thus, I did not incorporate fuses, limit switches, or a number of other safety parameters.

I have never used KCAM, but I have been told by other members that it works well with this project.

MP

 

[nikolaw]

thanks MP 
I dont understand how to use 5v for bord and how to use 12v for motors
do i need bepolar or i need to use unipolar motors whit 6 wires? ???
max. power motor for this bord?

thaks thanks

 

[MP1]

It all depends upon the motors you are using. If you are using 5 volt motors, you can use 5 volt for all. I have 12 volt motors. This is why I used the 12 volt buss from the power supply for the motors. A PC power supply provides 5 volt and 12 volt. Red to Black is 5 volts and Yellow to Black is 12 volts. It also provides a negative 12 and negative 5 that you will not use.
Here is an interesting website that discusses making a power supply from an old PC supply:
http://web2.murraystate.edu/andy.batts/ps/POWERSUPPLY.HTM

MP

 

[nikolaw]

thanks MP you are super!!!
thanks  thanks

 

[MP1]

No problem!  8)
Hope you will share a picture of your finished product with the group when you are done.
Good luck!

MP

 

[nikolaw]

i will start my proekt when i faind step motors
i'm searching for ....
i wiil send pic i promise

i hope u will be here if I'm stuck  :-\

thanks

 

[nikolaw]

i have problem
is tart to build board but i cant faind UCN5804B
can i use difirent part for this board????
tahnks tahanks

 

[MP1]

try here:

http://www.alltronics.com/cgi-bin/category.cgi


MP

 

[nikolaw]

hi i build the board and find step motors from 5,25'' floppy but they work on 12V and have 4 wires how a will connect whit board this motors and whit power
cen you show me some pic for this
Thanks

 

[nikolaw]

i need help plaese  :'( :'( :'( :'(

 

[MP1]

nikolaw,
Here is a good site that can help you with this:
http://www.doc.ic.ac.uk/~ih/doc/stepper/

MP