http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

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CNC Driver Board (Multi axis)by samr37l on August 1, 2010

Table of Contents

CNC Driver Board (Multi axis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Intro:   CNC Driver Board (Multi axis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 1:   Buying Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

File Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Step 2:   Putting it together: Step 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

File Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Step 3:   Putting it together: Step 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

File Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Step 4:   Done!!! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Step 5:   Having issues? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Related Instructables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

Intro:  CNC Driver Board (Multi axis)This is an instructable to help anyone that is making the CNC driver board by Tom McWire. Original Instructable  Suggested design from HowimI would also like to thank woodspinner for answering all of my questions. When making this driver board I had many issues, that luckily could be answered in the comments of the instructable. I have put together this instructable to help anyonethat is making the board with....making the board. Just a few things that I would like to add. This driver board is for making a 3 axis CNC. If you would like to add moreaxis send me a message, and I'll try to answer your question. So....first things first. The pieces to buy.

Image Notes1. Common (motor winding)2. B-3. A-4. B5. A

Step 1: Buying ComponentsWhat to buy. The parts list is attached onto this step. I would not recommend putting the board together by the diagram that I have attached, or by the reference numbersthat I have given. I would go by the pictures in the next few steps.

Image Notes1. Parts!!!!2. Yes....I got 3 boards. Just incase I messed up one :)

Image Notes1. Helping hand. Best thing I every bought for soldering.

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

Image Notes1. Digi-Key is awesome. I always buy from them

File Downloads

parts list.xls (29 KB)[NOTE: When saving, if you see .tmp as the file ext, rename it to 'parts list.xls']

Step 2: Putting it together: Step 1Ok, now that you have all your parts (I hope) lets decide how you want to make your board. I would personally send the top and bottom diagrams to a PCB manufacturer,but if you feel like making them yourself, then go ahead. I have attached the top and bottom diagrams to this step. I only etched the bottom, then used jumpers on the top.Just follow the top diagram to figure out where the jumpers need to go. Could luck with making the board!!!

Image Notes1. Helping hand. Best thing I every bought for soldering.

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

Image Notes1. This is where the Voltage regulator goes. (Thanks Woodspinner)2. These are the Mosfets3. Parallel port4. This is where you would attach the spindel relay (the relay that would turn onand off the drill/router/mill/ dremel/etc...)

File Downloads

Top.pdf ((612x792) 28 KB)[NOTE: When saving, if you see .tmp as the file ext, rename it to 'Top.pdf']

Overlay.pdf ((612x792) 9 KB)[NOTE: When saving, if you see .tmp as the file ext, rename it to 'Overlay.pdf']

Bottom.pdf ((612x792) 30 KB)[NOTE: When saving, if you see .tmp as the file ext, rename it to 'Bottom.pdf']

Step 3: Putting it together: Step 2Now that you have your board, lets start putting the components on. I have highlighted in the pictures where components have to go, so you should just follow thepictures. Just a few tips...1. Put the jumpers on first!!!!!2.Make sure to put the chips in the right way!!! It matters :)3. Make sure to put the Mosfets in the right way to. It also matters4. Same with the diodes :)5. oh....and same with the capacitor 6. I thinks thats it! Good luck!Oh...And in the "Where stuff goes" file the chips are flipped. The 4516 goes in front. 

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

Image Notes1. C72. Zener Diode3. 1k resistor4. IC BCD Up/Down Counter 16-DIP5. IC Decoder CMOS BCD-DEC 16-DIP6. Mosfets7. .1 mf capacitor8. .1 mf capacitor9. .1 mf capacitor10. Diodes11. Diodes12. diodes13. 100k resistor14. 100k resistor15. 100k resistor16. 25 dip male connector (Parallel port connector, male)17. Notice that the capacitor is polarized. Make sure that the negetive lead isfacing up (or towards this comment)

Image Notes1. Light bulb2. motor connections3. Jumpers4. zener diode5. mosfets

Image Notes1. Supposed to be 45162. Supposed to be 40283. Courtesy of Woodspinner4. These are really helpful

File Downloads

Schematic.pdf ((612x792) 37 KB)[NOTE: When saving, if you see .tmp as the file ext, rename it to 'Schematic.pdf']

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

Step 4: Done!!!Well....almost. now attach the motors according to the manufactures diagram..and the one that I have attached (previous page). The coils attach in a certain way, and ifthey are attached wrong then the motor won't run.The motor attaches in this order (From left, looking at the front)Top = Common coilA-, B-, A, BORA, B, A-, B-The A, and A- are the same coil, and same with the B, and B-. You can look at the diagram of Unipolar motors that I have posted (ignore the colors), but the manufacturershould tell you which wire is which.

If you would like to test it.....look at Tom's instructable....his testing procedure is amazing!I hope that I was able to help you make your amazing CNC controller (and hopefully, CNC) Good luck!

Image Notes1. Put it in a nice box. Makes it look really professional :)2. Motor connectors3. Limit switch connectors4. Power connector

Image Notes1. Common (motor winding)2. B-3. A-4. B5. A

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

Image Notes1. Our Motor. Just....if you have 5 wires, the 5 and 2 are connected (also...connectthe 5 and 2, or common, if you have 6 wires). 4 is A, 6 is A- , 3 is B, 1 is B-2. IGNORE COLORS!!!!

Step 5: Having issues?1) Kcam isn't working....what do I do?This happened to me, and to one other user. I found that the parallel port driver wasn't installed properly, and I re-installed it....and it worked! Another thing is that if youhave a different parallel port drive installed, the new driver might not work properly. It takes a little fidgeting to get it to work well. 2) Motor isn't running properlyOk....this is a question that is posted a lot. There could be many reasons why the motor isn't working, but I'll try to answer the majority. Make sure that you have aunipolar motor, and that it is hooked up correctly! I tested my board maybe 20 times before I realized that my motors where attached backwards. It is pretty hard to findthe correct wires for which stator on the motor, and even I have issues with that. Just, when you buy a motor, a key sure that you get the wiring diagram for the motor, orat least a key for which wires go to which stator. 3) Is this really that efficient?Umm.....I don't really know. I haven't built another motor controller, so I haven't been able to compare this one to other ones. I've heard from a lot of people that there arebetter ways to build a stepper controller for cheeper, and I'm assuming that they are probably right; I just don't know how to build it, so this is the best one that I could find.I so have some links to other stepper controllers (you can just look up serial stepper controllers in google), and I'm hoping to make another instructable in the future forthis newer, faster (and hopefully easier to build) design. 4) If you have any questions that you think should be in this list, please, comment below! 

Thanks, and happy building. :)

Related Instructables

Easy To BuildStepperController fromRecycledMaterials bymurray484

How to wire anarduino-based3-axis CNCmachine byaggrav8d

Make your owncnc controllerby charcoal999

Easy to buildCNC MillStepper Motorand Drivercircuits by TomMcWire

Stepper MotorModule by carlyn

Hobby cnc bymraspotcnc

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

Comments

50 comments Add Comment view all 121 comments

 James Cavan says:  Mar 14, 2011. 9:37 AM  REPLYSo are the .1mf capacitors replacing the lightbulbs used in the original schematic?

 James Cavan says:  Mar 14, 2011. 9:40 AM  REPLYor do you have to have both .. although I can't see any bulbs in your board!

scratch that first comment! Have you replaced the bulbs with resistors instead?

 kizzap says:  Oct 12, 2010. 8:23 AM  REPLYI'm not completely certain, but I think R1 is in the wrong place...and that the Zener diode is facing the wrong direction...

where R1 is, should actually be a capacitor, possibly another 0.1uF (no idea really) this is because R1 goes from the positive supply, through the resistor, tothe center pin of the spot for the voltage regulator, which is then connected to ground (which isn't correctly shown in the image).

 zopatch says:  Mar 11, 2011. 4:00 PM  REPLYyou are right

 nuwan111 says:  Feb 6, 2011. 6:52 PM  REPLYthank u very much sir ,my controller board & software is work fine,(sorry for my bad english)

 No1Daemon says:  Jan 21, 2011. 8:30 PM  REPLYHi all

I wasn't paying due attention when I built this circuit and I have soldered the end of the diodes to the part of the board where the stepper motor wires go. Thediodes are supposed to be soldered directly next to them.

I can't see it will change anything but can anyone see a problem with soldering the stepper motor wires next to the diodes?

I have marked the 2 positions I am referring to under the mosfets.

ThanksSteve

 No1Daemon says:  Jan 26, 2011. 2:02 PM  REPLYFor anyone else who tends to ask first and google second. The LM7805 is easy to install. Holding it with the metal tab away from you the left hand pin isthe input and they go input, ground, output from left to right.

So the input pin goes closest to the motors.

 woodspinner says:  Jan 22, 2011. 2:56 PM  REPLYI'd think, no difference, You could desolder the diodes and move them for the sake of appearance but that sounds like an unnecessary hassle.John

 No1Daemon says:  Jan 22, 2011. 4:05 PM  REPLYWhich way round does the LM7805/LM7806 go?Is it so the tab is on the same side as the mosfets?

Also, do you need to remove the resistor and zener to add it or just leave them in.

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

 woodspinner says:  Jan 22, 2011. 8:57 PM  REPLYand yes, if you use the lm7806/5 remove the resistor and zener

 woodspinner says:  Jan 22, 2011. 5:11 PM  REPLYsorry, I have no idea, I never actually mounted it on the board. My circuit was breadboarded and I just went by the wiring diagram on thepackage, but you could trace it out for yourself.

John

 No1Daemon says:  Jan 22, 2011. 3:00 PM  REPLYThanks. I will give it a test and see. I can't see circuit wise why it would matter, in fact now I look closely some of the diodes are on that side anywayin the middle of the board.

 woodspinner says:  Jan 17, 2011. 5:39 PM  REPLYA salute to tom mcwire and his article for getting me going in cnc routers.

 samr37l says:  Jan 17, 2011. 6:19 PM  REPLYOhh.....and I second that :)

 samr37l says:  Jan 17, 2011. 6:19 PM  REPLYIs that your stuff?! ITS AMAZING!!!!!!!Sam

 woodspinner says:  Jan 17, 2011. 8:05 PM  REPLYyes, its a couple puzzles I made and a lithophane made from a plastic sign board sheet, I've made tons of stuff but those are my favorites so farJohn

 caleb.mayfield says:  Jan 9, 2011. 6:34 PM  REPLYI was able to locate 3 older identical thermal printers that each have a nice NEMA 23 stepper motor from Superior Electric. They are labeled as being in theSLO-SYN Motor group. The label reads as follows:STEPPING MOTORType M061-LE-5391.5 VDC 3.8 AMPS200 STEPS/REVConnect per 1010292H3279 REV. CCan anyone tell me anything more about this motor? The only documentation I can find that comes close to this motor is HERE and HERE .My biggest questions is that most people seem to be hooking up at least 12 volts to their board. This motor says only 1.5 VDC and 3.8 AMPS, what doesthat mean? Can I only put 1.5 volts to the board supply? Will I burn up the motor putting higher voltage to it? Could I change my board layout and run 6 voltsin and use a voltage regulator for the motor lines to drop it to 1.5 volts instead of 12 volts in and dropping it to 6 volts for the chips?

Any help is greatly appreciated.

 woodspinner says:  Jan 10, 2011. 6:17 PM  REPLYyou can use higher voltage but must limit amperage to 3.8amps.

 caleb.mayfield says:  Jan 10, 2011. 7:16 PM  REPLYAnd that is done with a P=IV calculation and the correct light bulb?

 woodspinner says:  Jan 10, 2011. 7:18 PM  REPLYits this simple, if you run 12 volts, * 3.8amps=45.6 watts, remember to err on the side of caution.

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

 caleb.mayfield says:  Jan 11, 2011. 11:29 AM  REPLYAlthough, if I want to run it on 12 volts shouldn't I use a balanced equation like this:P=(3.8A)(1.5V) = (xA)(12V) = 0.475 A @ 12V?

I ask because I built an arc welder and the transformer windings function in this manner. I can only get X many watts out, but the current andvoltage can be manipulated to produce the desired result.

My thought is that I should keep that wattage running through it the same, but I would sacrifice power for speed by increasing the voltage.

Am I off track with that theory?

 woodspinner says:  Jan 11, 2011. 1:08 PM  REPLYes, I think your off track, the windings will accept 3.8 amps at whatever voltage, I'm not sure why they rate them at that specific voltageexcept to say that optimum voltage usually runs between 20-30 times rated voltage, and, if you were to run them at 1.5v then you wouldntneed to concern yourself with bulbs as at that voltage thats all the power they would pull. (they would be dogs tho)

the whole point of increasing the voltage is the ability to increase the speed without sacrificing power, my 1.2 amp motors run at 36voltsnow but at 1.1 amp(err on the side of safety) and I'm getting a lot more power out of them.

John

 caleb.mayfield says:  Jan 10, 2011. 8:05 PM  REPLYI thought that might be the case so I crunched the numbers and came to the conclusion of going with 40 watts to allow for variations.

Thank you for your help. I am checking my schematic now and plan to etch my board tonight!

 caleb.mayfield says:  Jan 9, 2011. 6:43 PM  REPLYand it is an 8 wire lead motor.

 howim says:  Jan 9, 2011. 2:10 AM  REPLYhello guyz,i am sorry that i am asking this question again on this post, but "guyz what is the maximum RPM that you guyz get from this driver?"( OR what is themaximum pules per min?")mine is only going at 95RPM( my motor is 13Kg/Cm 6 wire unipolar , 200 steps per R)

plz reply my comment.thankx for reading.

PLZ ANSWER.

 woodspinner says:  Jan 9, 2011. 7:04 AM  REPLYI was getting 720 rpm at 24 volts. what bulbs are you using?

 caleb.mayfield says:  Jan 3, 2011. 1:41 PM  REPLYI am working on building this board and hope to etch it this weekend, but I am having some difficulty in understanding a couple things. It's been a few yearssince I took my Fundamentals of Circuits course and I was hoping for a little direction.1) Why is the 1k Resistor in position C6 and creating a ling from + to -? Is it to supply a voltage connection to C7 and the Zener without generating a deadshort, hence the 1W rating?2) What exactly do you mean by voltage regulator? Part number from Newark, Digi-Key, or Mouser so I can see the spec sheet?

Thanks!

 woodspinner says:  Jan 8, 2011. 5:05 PM  REPLYI dont know the digikey or mouser part number but an lm7806 would do the job and here is the data sheethttp://www.datasheetcatalog.com/datasheets_pdf/L/M/7/8/LM7806.shtml

not sure about the resistor but I do know you have to change the values if you want to go over 12 volts.

John

ps, if you go with the regulator, omit the zenier and resistor

 caleb.mayfield says:  Jan 9, 2011. 12:32 AM  REPLYThanks! I understand that part of the circuit a lot better now. I do much better with pictures and diagrams like the component data sheets.

Thanks for the direction!

 howim says:  Jan 8, 2011. 8:58 PM  REPLYhello guyz,i am sorry that i am asking this question again on this post, but "guyz what is the maximum RPM that you guyz get from this driver?"( OR what is themaximum pules per min?")

plz reply my comment.thankx for reading.

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

 axlrus says:  Jan 1, 2011. 5:59 PM  REPLYDriver working good with Kcam, 6wire steppers 0.4a, thanks.

 samr37l says:  Jan 1, 2011. 6:25 PM  REPLYNIce!!! I'm always happy when it works out for someone :)Sam R.

 howim says:  Dec 10, 2010. 10:54 PM  REPLYHey SAM R.,this controller works fine but my stepper motor cant go more then 70RPM , i mean if i try to speed it up more then 70rpm then it starts miss stepping . canyou plz tell me why is i am having this problem?

my motor = 13.5Kg/cm 6 wire unipolar . and i am running that motor at 16V 5.4Amp.

plz help

 jomac_uk says:  Dec 28, 2010. 9:32 PM  REPLYHave you tried connecting the motor in "half coil" configuration?

6 coil motors tend to be very fussy compared to 4 coil motors, and the voltage can also affect performance as well, ive included a link to a site whichshould give you some good advice in solving your problems.

http://pminmo.com/six-wire-motors

 woodspinner says:  Dec 19, 2010. 2:27 PM  REPLYwhat do you use in the way of light bulbs?

 samr37l says:  Dec 11, 2010. 6:00 AM  REPLYHey howim,I'm sorry, but with that info, I can't really tell you why that is happening. Most people have been able to get the motors spinning pretty quickly. Can yourmotors go above 70rpm? Motors are usually rated for different speeds. Another issue could be that your running to many volts into your motor, that canalso make the motor miss steps.Sam R.

 axlrus says:  Dec 28, 2010. 11:39 AM  REPLYone question, i cant find exact mosfet, my motor is 12v 0.44a, can i use some diferent mosfet?

 petya16 says:  Dec 9, 2010. 1:12 PM  REPLYHy! I have a question. I need to connect the limit switches to the positive voltage, and their other sides to the X,Y, and Z pin on the paralell port? Or need toconnect to the ground? Thank you. Bye.

P.M.: I write from hungary, and i dont speak on english very well.

 samr37l says:  Dec 24, 2010. 7:38 AM  REPLYHey, sorry for the late reply. The limit switches either plug into positive with a 10k pull down resistor, or they plug into negative with a 10k pull up resistor.Then in Kcam set the limit switches to either "positive" or "negative" depending on whether your switches send a high output when their pressed, or a lowoutput when their pressed.Sam

 woodspinner says:  Dec 23, 2010. 6:09 PM  REPLYI'm posting this pic showing where to put the voltage regulator on the main circuit board. I couldnt figure out how to show one in a private message.

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

 zelalem says:  Dec 21, 2010. 1:03 AM  REPLYHi samr37l,Thanks for the clarification posted by you about this cnc project. It was a big help really as the original by Tom was a bit difficult . Specially placing thecomponentson the pcb. And also i have noticed that on Tom's instructable there was a line that wes connected to the negative around the 1k resistor,youhave corrected it.Thanks.I have a problem with making the motor run. It makes a humming sound but it never moves. And also the kCam program ,when iopen the CNC controls window and try the increment of the steps just as Tom has suggested on his video the numbers don't increase. Out of the wires ,theones for the stepper , only one seems to have charge. Is the problem my circuitery or the connection for the motor or is it the KCam program .Please advise me ,it is getting frustrating.Thanks all

 samr37l says:  Dec 21, 2010. 7:55 AM  REPLYHey!Yah, I had the same problem....but I figured that it was the computer, so I changed to an older version of windows XP and it worked. Don't know what inthe newer version causes KCam to not work, but it might have to do something with how the parallel port is installed. If you do happen to figure it out, canyou send me an email? I'll have some time next week to work on the instructable, so I can add it in.Thanks,Sam

 howim says:  Dec 9, 2010. 1:27 AM  REPLYHey Guyz , what is the maximum V and Amp value of the controller? i mean what is the maximum limit of this controller? plz reply fast...its urgent

 samr37l says:  Dec 9, 2010. 11:42 AM  REPLYThe Max Volts and amps are whatever your components are rated for. Your probably shouldn't go above 24-30ish volts, and the amps are pretty muchwhatever your motors pull, buy mosfets that are rated for that.Sam R.

 howim says:  Nov 22, 2010. 10:28 PM  REPLYhey guyz, i am having a small problem...

i maded up this controller . it works totally fine on old pcs (older computers of my friends) , but it does not wokr with my new PC.

i tested my parallel port. it works fine too. if i connect LEDs to parallel port and run Kcam then leds shows that parallel port is working fine. but my controlleris not working with it.....so can anyone tell me why?

my pc=Intel DG41WV MoBocore 2 deo 75004 gb ddr3nvidia geforce 210 1GB500 GB HDDWin 7 , XP sp2, Ubuntu.

i tested with win7 and xp.but it doesn't wokr...............plz plz plzzzzzzzzzzzzzzzzzzzzzzzz HELP

 howim says:  Nov 24, 2010. 4:37 AM  REPLYi found the problem.. === when i connect the Earth to negative of the controller then it works 90%fine (if gives miss stepping some times) ...

so guyz plz tell me what to do now?....plz help...............

 woodspinner says:  Dec 1, 2010. 4:26 PM  REPLYYou probably need to experiment with acceleration rates and max velocities til you get it tuned well, also check to see how hot your motors get, ifthey get real hot, maybe use a smaller bulb, if they run cool or barely warm they could probably stand a little larger bulb. Have fun with it.

 howim says:  Nov 18, 2010. 8:38 AM  REPLYi am taking my words back...""this controller does not work well....guyz think 1000 time before making it by your self...""""

but now i found that this controller works really well if you make it like this =

http://www.instructables.com/id/Hobby-cnc/

thankx every one...

 howim says:  Oct 22, 2010. 11:34 PM  REPLYthis controller does not work well....guyz think 1000 time before making it by your self...

http://www.instructables.com/id/CNC-Driver-Board-Multi-axis/

 howim says:  Nov 18, 2010. 8:38 AM  REPLYi am taking my words back...""this controller does not work well....guyz think 1000 time before making it by your self...""""

but now i found that this controller works really well if you make it like this = http://www.instructables.com/id/Hobby-cnc/

thankx every one...

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