Russian CNC project - my first router

[maxvovk]

Originally Posted by ViperTX Nice, but how does the x-axis move....there seems to be something missing in your drawing....I see the y-axis and z-axis....I suspect that you are moving the frame that holds the y and z axis....something is missing...

There is no rail X. On the other hand bearing will be big and thick ballscrew. Simply I draw drawings on a place when I do details. And with X I yet do not know - there is a desire to lift a rail upward - that it was possible to put a wide leaf of a material on all length X... But then rigidity will decrease... It is necessary to apply thick metal pipes and corners... Here I also think - on what to stop.

[Mariss Freimanis]

OK.....Can't design your own drive?

Mariss Freimanis


Quote:

Drivers - analogue Gecko, its full copy, PCB are made by means of PCAD-2001, a photo mask printed on the jet printer, Positive resist and chloric iron.

[ynneb]

Hmm, yes I missed that one. I guess the horse has already bolted and you have already made them. I do suggest you edit your post in reference to your copied drives and possibly the list of software you use.
Wow you have an impressive amount of software.

[rmsimoes]

I have tested also, and motor sounds a bit better than using a3977 ic. but it really needs a good heatsink

[harryn]

Hi, if you are looking for a proven out stepper driver design that is all set up for open source / anyone can build it, you might want to look here.

http://www.cnczone.com/forums/showthread.php?t=9564

It is not a Gecko, but then again, your project might not need them yet. The parts needed are pretty universally available, and the kit version is cheap.

[rmsimoes]

you are right. I have seen it also at www.damencnc.com
but I bought all stuff to work with bipolar. connectors and even shielded cable from Igus.
the kit assembled seems to be affordable and I really prefer mosfets instead of an expensive IC.
I am planning another project with servos at x and y axis and stepper for Z.
for the price and simplicity it may be a solution for me. now I am testing TA8435 and then I'll take a few more conclusions.