0pen source uni-polar chopper stepper drive 80V 5A - Schematic available

[gregcon]

Hi,

I'm new to CNC zone and this is my first post.
For many years I have run a small company in Cyptrus producing CNC plasma and router systems, mostly custom designed.

We have designed in-house all the electronics, mechanics and software

As I will be retiring soon (I am 58) I would like to contribute some of our designs (electronic mechanics and software)
to your community

My first contribution will be for an inexpensive uni-polar chopper stepper drive capable of up to 80v 5A with faciltiy of using with microstepping translator.

If this is of interest to anybody please contact me and I will post details within the next few weeks.

[hesham morsy]

u are welcome

(I am 58)
ps some member started the cnc after they retire

[BartekS]

I want to build plasma cutter.
I have 5 slo-syn stepmottors.
1.4DC
7A but i don't have a driver for this... maybe You might be a good man and help me?

[gregcon]

I will post schematic diagram with parts list this week for the drive, when I have a chance

Your slo-syn stepper motors must be the unipolar type to work (5, 6 or 8 wire)

I will also supply open source schematic of translator/computer interface in due course
with details

If you need software I have a professional plasma/routerCADCAM program available but only as shareware.

[BartekS]

Thanks.
My step motors are :
Nema34 kml092F - 102 ... 4 wire but i don't have anything for that (documentation)

About shareware :
i looking for this

[hesham morsy]

Originally Posted by BartekS Thanks. My step motors are : Nema34 kml092F - 102 ... 4 wire but i don't have anything for that (documentation) About shareware : i looking for this

http://www.mcsupplyco.com/uploads/pr...ProductID=1214

http://sanyo-denki-online.com/nema34.htm

[gregcon]

Schematic of drive can be viewed at my blogspot

http://gregopencnc.blogspot.com
(For convenience all info for drive will be on this spot, as available)

[AlainB]

Hi,

Unfortunately, your schematic is hard to read. Could you make it available bigger, maybe in PDF format and in black and white only.

Thanks!

Alain

[BartekS]

NIce


this is it: http://www.mcsupplyco.com/uploads/pr...ProductID=1214

but i need drivers for 7amps ... 5 is not required & my steppers are 27Nm

[gregcon]

Originally Posted by AlainB Hi, Unfortunately, your schematic is hard to read. Could you make it available bigger, maybe in PDF format and in black and white only. Thanks! Alain

Alan

if you double-clik on image it will enlarge and should be readable-I will try to put hi-res jpg file to-morrow

Gregg

[gregcon]

Originally Posted by BartekS NIce this is it: http://www.mcsupplyco.com/uploads/pr...ProductID=1214 but i need drivers for 7amps ... 5 is not required & my steppers are 27Nm

Unfortunately the uni-polar drive i have will not do - maybe gecko drives will be suitable

[AlainB]

I don't want to sound rude or anything but I disagree with the way you are posting.

First, starting 3 threads on the same subject will get things at least confusing after a while.

But more important, sharing bits and pieces, a little bit now, a little bit later, personally I really dont like it.

I think that you should have prepared yourself before posting anything.

Sorry!

Alain