CNC Controller PIC 16F877 - From Brasil

[elizeu]

I need help ..!

Please i like about cnc controller with pic 16F877 and parallel port, i need source code.

[TinkerDJ]

You and me both.

There are several websites out there, with the same idea.

http://cstep.luberth.com/

Goto to the bottom of the first page listed and there is a few other pic877 controllers listed.

I'm working on one but i want have code for it any time soon.

[Swede]

Good luck. PIC's are amazingly capable but very low-level devices. I spent two years coding a PIC16F876 to control a model turbojet engine. I don't know your background, but I found that a copy of PICBASIC Pro to be incredibly helpful, and the code, unlike a BASIC stamp, is actually compiled, not interpreted, so the speed doesn't suffer too badly.

[samsagaz]

is possible to control perfectly an CNC machine using an pic?

[aquasapien]

I have built a cnc system using 16F84 and uln 2003's. Problem is using Kcam I plot a circle and the cnc output is a diamond. I think I am reading the step variable wrong. When I output the data to hyperterm it seems like I am reading it right but output is like I said....square not circle. Any suggestions?

[CLaNZeR]

Find attached our Firmware for the Processor Board using the 18F4550, it nearly the same as the 16F877 but has the USB as well as serial input, please follow processor board link at http://www.cncdudez.com

All the pin outs and link information is on the site, so you can design your own board.
Along with the protocol to drive your motors via usb or serial port.

Regards

Sean.

Originally Posted by elizeu I need help ..! Please i like about cnc controller with pic 16F877 and parallel port, i need source code.

[CLaNZeR]

You need to convert the objects in your DXF files from Arcs to Spline vectors. This will get rid of the arcs and leave you with Beziers.
Then export them as DXF's and import in Kcam and you will get your curves and not straight lines.

Regards

Sean.

Originally Posted by aquasapien I have built a cnc system using 16F84 and uln 2003's. Problem is using Kcam I plot a circle and the cnc output is a diamond. I think I am reading the step variable wrong. When I output the data to hyperterm it seems like I am reading it right but output is like I said....square not circle. Any suggestions?

[dewayne]

The pinout information seems to be missing
Cheers

Originally Posted by CLaNZeR Find attached our Firmware for the Processor Board using the 18F4550, it nearly the same as the 16F877 but has the USB as well as serial input, please follow processor board link at http://www.cncdudez.com All the pin outs and link information is on the site, so you can design your own board. Along with the protocol to drive your motors via usb or serial port. Regards Sean.

[CLaNZeR]

The pinouts are on the Firmware link at the bottom and shows what each port on the 18F4550 does.

Regards

Sean.

[fcoupez]

I've try both CNCDunez and InterpCNC board with GALAAD.
InterpCNC board is very useful and perfect for hobbys't use.
The bigest advantage of this board is that you can use Ninos or GALAAD.
Ninos is very cheap and GALAAD is not so cheap but very powerful.
This board is the cheapest way to use GALAAD.

Information on InterpCNC are available here :
http://hdarret.free.fr/cnc2/projet_interpolateur.htm

It's in french but you can contact the author in English. Ther's no problem for him.

Originally Posted by CLaNZeR The pinouts are on the Firmware link at the bottom and shows what each port on the 18F4550 does. Regards Sean.

[davesaudio]

Information on InterpCNC are available here : http://hdarret.free.fr/cnc2/projet_interpolateur.htm It's in french but you can contact the author in English. Ther's no problem for him.

Thats a normal step and direction input controller?

[fcoupez]

Yes, outputs are Step/Dir for 4 axes. I'm using only 3.

Regards,

francois