[phantomcow2]

I am very frustrated iwth my current electronics setup...
A HobbyCNC unipolar board 4 axis. With vexta and Japan servo unipolar motors.
It seems the driver board is just like one problem after another. I finally had it working this morning and then everything just stopped. And wont start up again....
I guess its a Thermal shutdown type thing, i am lost. Is a Xylotex board any more robust, or easier? And most importantly, does it come already assembled?
One thing that attracts me is that Bipolar motors seem to be more common and cheaper than unipolar. AUtomation direct has 266oz motors for 40 bucks i think

[pminmo]

I don't think it's fair to blame the hobbycnc board. If you want to go a different direction or question the skills of the builder, or just frustrated that's one thing. There are a LOT of potential flaws in how a person applies a driver board. Heat sinks, cooling, airflow, power supply type and capability, grounding scheems, wiring layout. Have you contacted HobbyCNC for guidance? I would suggest that first.

The other is post your wiring, motor, power supply information here on the zone (pictures are a huge help also) and maybe some of us posters could help.

[phantomcow2]

Oh i dont blame the board any, dont get me mistaken. I just feel like every time i take one step forward something else sets me back 2 steps. I can never seem to get my entire system working for more than a day. Im just wondering if starting with a clean slate might not help get me going. I am new with electronics, i built computers but this was never diagnosing a part of a circuit board.
Now everything has just shut down, with no apparent reason. The wiring configuration must have been correct because I was running programs before with no difficulty, and it just stops.
I've got a 30Amp 24vDC power supply. Using a 12v fan

[phantomcow2]

Basically what i am trying to ask is, Is the xylotex board any easier for a new guy with this type of hting to figure out?

[ger21]

I've never used a HObbyCNC, but I have a Xylotex. Unless you're havine a problem due to your assembly of the board, I would think they should work about the same. The Xylotex does come assembled, just hook up your motors and power supply, and away you go. You'll probably need a 24V fan, the board has a connector for one. It just takes the 24V from your power supply. The Xylotex needs a fan blowing on the heatsinks. If you unplug a motor while the board is powered, it will die instantly. Same thing if a wire comes loose.

Jeff at Xylotex has great support. Just email him if you have any other questions about it. [email protected]

[DieGuy]

I think Jeff is out of Unipolar boards,
I have a BiPolar and it works the treat with automation direct 276 oz/in steppers and a ~28 vdc supply. I just wired 2 12 vdc fans in series hooked up to the fan header and no issues with cooling or fan voltage.