Hey Guys i am planing to build a 3axis CNC for engraving and PCB routing would this be a good driver board for it??
http://www.g7electronica.net/pt/controladoras/1064-cnc3ax-versao-fs.html
we ship to any place of world
That is a break out board. It just isolates your computer from your motor drives. It is not really a driver all by itself but a driver for your motor drives. Depending on what drives you use you may not even need it. Because some motor drives have isolation built in.
@Hugo_Antao Thanks, but that would be too expensive after it reaches hear due to cost+international shipping+costoms
@Paul_Frederick oops i forgot to add the Mosfet Driver Circuit http://archive.siliconchip.com.au/static/images/articles/i1009/100994_2lo.jpg
S final question is this a good board?? and do you have any pointers for me??
Google …easydriver
@Bijil_Baji
That looks like a full step drive with no current control to me. Performance would not be good compared to today’s drives. Even TB6560 based drives would out run it. Although they can be confusing to get peak performance out of.
@shreyas_sagar
EasyDriver is a pretty cheesy stepper motor drive too. Allegro really moved away from decent hardware a while ago. I’ve built drives based on their old through hole tab packages though. The SLA7026 specifically which handles 3.5 amps at 42 volts. That is almost respectable performance.
@Paul_Frederick yes you are rignt but i have designed Drivers for stepper motor and i think the MOSFET based H bridge is better the IRF9530 can handle upto 12A and at 100V. And since he load is handled by 2 MOSFETS the heat genarated would be considerably low and that would be good for the bipolar mode.
@Bijil_Baji
Without current sense feedback you can only run the rated voltage into a stepper motor so it does not really matter what the MOSFETs can handle. Stepper drives use feedback and PWM to run stepper motors at higher voltage for better performance.
Then @Paul_Frederick what do you suggest…
Problem with “Enhanched Parallel Port Break-out Board (PP-BOB2-v1)” is price point (~$60) and input ports. Parallel DB 25 port and no usb or ethernet, whatsoever. It is hard now days to find PC with parallel port.
PCB milling and engraving machine doesn’t require a lot of torque on the axes. You can get away with reprap setup:
3xNema17 motors (3x$12 and up) Kysan Electronics Product Subclass Page
arduino Mega ($15 and up) Geekcreit® mega 2560 r3 atmega2560 mega2560 development board with usb cable geekcreit for arduino - products that work with official arduino boards Sale - Banggood.com
RAMPS 1.4 ($12 and up) 3d printer ramps 1.4 controller board for reprap mendel prusa Sale - Banggood.com sold out-arrival notice-arrival notice
3xstepstick drivers (3x$4 and up) http://www.banggood.com/A4988-3D-Printer-Driver-Module-StepStick-Stepper-Motor-Driver-p-87970.html
for engraver spindle I would recommend
Brushless Exterior Rotor Motor ($11 and up) http://dx.com/p/kv1000-brushless-exterior-rotor-motor-outrunner-motor-yellow-154904
Brushless Speed Controller ($9 and up) http://usd.dx.com/product/hobbywing-pentium-30a-brushless-speed-controller-esc-for-r-c-helicopter-quadcopter-black-901184272#.UtP__J5dW_U
@Daniel_Goncharov
You can put a parallel port into any PC with a PCI slot. USB cannot do real time which is why a parallel port or other I/O solution is required. While there is CNC software for Arduino it is rather feature poor compared to PC alternatives. So I would consider that a bad recommendation.
@Bijil_Baji I suggest you flesh out your entire design before you spec individual components for it. If price is your primary concern the imported 3 axis TB6560 boards are tough to beat. They’re tough to use properly too, but that is a topic for another time I suppose.
Building your own CNC machine is riddled with gotchas and pitfalls. So try to take a long view when planning what you want to make. Stepper drives are only a small part of the whole system really. Your power supply that runs them, and what they in turn run themselves should not be overlooked.
- Please excuse my ignorance.
- Why do we need real time connection to cnc?
In my current setup I am using marlin/grbl firmware on arduino board. Gcode (to be implemented) lives in arduino buffer or gcode files accessible directly through sdcard board ramp.
If, I need register engraving toolhead against part via manual joggging, usb time lag is undetectable with naked eye.
Also with available usb connection i can control my machine with laptop or even with cheap chinese android touchscreen tablet (usb OTG cable and android 4.0.3 required).
@Paul_Frederick thanks for all your pointers and suggestions. as i posted earlier the engraver is just a start after that i would like to go for wood CNC and make it a multi purpose. it would be better i go for full kits than make my on parts. cost is also a factor to me. i found some kits could you suggest me better one. both of this would cost me about the same with shipping about 220-230$.
@Bijil_Baji
The kit that has individual drives is the most like a really high end setup. As you go along you could upgrade it a piece at a time to make it high end too. The single board is much less flexible that way. So if you ever upgrade that you’ll be just about starting over again. That difference could make the extra price of the more expensive kit worth it in the long run.
But the single board kit is plug it in and go. The modular kit would take more work to put together. Work that down the road you might be happy you did. You sound like you have plans to expand in the future so that suggests to me you would be better off with the “free shipping” kit that costs $20 more.
You will want individual drives at some point because you can replace them when they go up in flames. (Happened to me 3 times so far)
Or when you want to upgrade to stronger steppers or a higher supply voltage.
I don’t consider parallel ports to be the way to go but others have used them with success, so it’s entirely you decision.
@Marcus_Wolschon which board do you suggest???
I only have 2 specific suggestions for MACH3 users (Windows). Nothing for EMC2, sorry.
I know people have used Beaglebone board to do what I’m doing with an off the shelf USB board but no details
@Marcus_Wolschon @Paul_Frederick can i use a Parallel to USB converter or print print server to have Lan or WIfi connectivity
eq: USB to LAN—http://www.ebay.in/itm/BAFO-USB-2-0-A-Male-to-36-Pin-BF-1284-Parallel-Port-Printer-Cable-36PIN-Windows-/160985982159?pt=LH_DefaultDomain_203&hash=item257b8324cf
parallel port print server—http://www.ebay.in/itm/TP-Link-Single-Parallel-Port-Fast-Ethernet-Print-Server-TL-PS110P-/251414092319?pt=LH_DefaultDomain_203&hash=item3a89729a1f
i dont know if any one has used the print server for this but i have used them for some projects with parallel port interface with circuits this is one of the easy way to add lan conectivity to circuits