Thanks, I just ordered one of the Chinese boards.
hello, I got this board a few weeks ago and couldn't get it to run good at all. After I figured out the chinese PSU was way too wimpy (24v 4.5A rating, kept stalling out the whole drive), I still couldn't get it to go in the correct direction or run in different speeds. Was getting ready to buy something else.
I spent over a week hacking out the settings (EMC2 & Mach3) that work for me. I am posting them in case someone else is having this problem.
EMC 2 ubuntu 10.0.4 settings
Step time : 50000 ns
Step space: 1000
Dir Hold : 1000
Dir Setup : 50000
1/2 step mode
max acc 15in ^2
max vel 1.4 in/sec
I spent probably 40 hrs testing this thing and it was completely worthless until I stumbled on to this setup. Miss steps consistently and reverse direction if you even push on it a tiny bit. Never go the right direction twice in a row. Worst of all, it wouldn't run slow. Between 20-30 ipm (5/inch ballscrew) was the only speed. That is too fast to cut on my lathe.
Now it runs perfect with full power, 300oz in nema 23 (cutting aluminum on a 1937 atlas lathe). It is just amazing how this thing went from chump to champ with a quick settings change.
This is only a 1 axis machine right now, 5/8' roton ball screw. (Will be motorizing X in a few weeks, hopefully it still runs well). I may upgrade to gecko in the future but at least I can run an actual program on my machine while I think about it.
I did use a couple of the mods from this thread, not sure if it mattered or not. I flipped the 3 optocouplers around and chipped off the surface mount current resistor.
many thanks to all those that contributed to the thread!Hi all
I have bought 6 of the 4-axis TB6560 controllers. I had the same problems with 2 of these bought about 4 months ago, so I ordered more to replace these 2 and have some in stock.
The problem is that after cutting the attached g-code file the x and y axis does not return to zero. I do not hear steps being lost while cutting, and when using on some other g-code files the cards seems to work fine. Now with these letter files some of the cards loses as much as 12.27mm on x and 7.85mm on y, nothing on z.
Are there any of you willing to run an air-cut test on the attached g-code file and let me know what your findings are? Please!
I have removed tool changes and spindle starts for the test file.
One of the cards blew the y-axis after about 30mins into my test. I don't know if it worth buying these things anymore. I had a 5 axis catching fire about a year ago.
I am running Mach3.
Thanks in advance