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gothdragon

Check the DIP switches...
Switches 3&4 on my X axis would not short to ground when in the 'ON' position.

In the end, rather than replace the switch, I soldered the problem pins to...

Google for THB6016H.

The first page of the pdf datasheet looks original the remainder of the pages appear scanned.:nono:

Begs the question did Toshiba buy this design or is this a knock off?

Good call, forgot about the cable loading and so re-measured.

I used an oscilloscope probe. On 24VDC, the x1 setting on the probe showed 45.62kHz, the x10 setting showed 40.38kHz. Of particular...

Hi lasik2025,

I was busily reversing engineering a 3-axis controller when another user 'doorknob' pointed out your existence over on this forum page.

Here's some more flaws for the list.

-...

Wow! had no idea that existed. I'll add some new comments to that thread.

Glad you find the pics of use, though I'd be very wary using this 3-axis controller (and its relatives) until a series of fixes are developed.

After 2 days of reversing engineering the schematic,...

There were some solder balls still stuck to the board so beware.

Pay attention to the heatsink - around the self tapping screws you may find some shards of alloy ready to fall off.

Also in...

Well I couldn't get the zip file to load, so here are the two separate images.
If you know how to use Gimp, flipping between layers with the opacity slider is pretty cool.

Enjoy

"upload of file failed" - ?
Anyone

Here are two merged photos of the ebay TB6560 driver board.

The attachment contains a .xcf file which can be read by Gimp - a free image editing program.

Within Gimp under Windows>Dockable...

I can see how that would tame or redirect any stray currents. I just wish the opto-coupler in this particular product had been correctly applied to keep the PC electrically isolated from the machine...

Connecting power supply commons at one central point is good.

But if a bad (resistive) connection exists between this ebay TB6560 driver board and the 0V of the stepper PSU, the return current...

This week I took delivery of a 3 axis TB6560 controller board - the kind that can be found all over eBay. On examining the board and I began to think about its circuit topology.

The ground fill on...