I just have to get this off my chest about these drives from China: There is one thing the Chinese will NEVER supply and that is information, knowledge, or anything else that actually empowers you, the user, to support yourself, solve problems, and learn how to build your own drivers or repair the ones you have. They will always want you to be dependent on them for another hit of cheap, poor quality, drive electronics. Doesn't matter if it's a 6560 or a THB6128 or a THB6064AH... It's going to come with zero warranty (past the ebay return deadline) and little or no documentation on troubleshooting and repair. And here you are in the
http://www.cnczone.com/forums/steppe...or_driver.html looking for ways to fix them, and instead another guy from China is trying to sell you a different board...
After guys like Mariss (from Geckodrive) or Roman (from Linistepper and SLAm) have spent years and literally thousands of hours answering questions, writing documentation, TEACHING people how it works, how to use it, and how to REPAIR it for a few dollars, watching the sales go to China is a sadness. Not so much for them, but for YOU... You, who are spending your hard earned money on a set of crap that is likely to fail, leaving you with a sense of failure, of hopelessness, of dis-empowerment. Leaving you with no option but to buy another cheap drive, or attempt surface mount repairs... or LEARN to invest at the start in a better quality drive with a real warranty, like the Gecko, or a kit that you can easily repair (because you built the kit in the first place) for $6 in power transistors, like the Linistepper or SLAm.
Just one quick example: This machine is running on 4 SLAms.
Look at the SIZE of that monster! It was refurbished by a 14 year old KID who burned though 2 cheap Chinese drivers before he got some good advice and went with drivers he can (and has) repaired himself. Take a look at the video and notice the SIZE of the thing. It's solid steel. How much faster will a small mill fly? After working through all the problems (binding, power, wiring, etc...) it's cutting surf boards now... empowerment, accomplishment, education. Not some "now on hot sales" cheap (not after you have to replace them), "winning good reputation" (hours spend wondering why they don't work), drivers from China with "the problems uaually occured during in use process,stepper motor controller toast the circuits board or burnt up,or cause the noises or can not reset ect" ... huh?
How about documentation and support in actual English? That you can actually understand? With "How it works" on top of "how to repair it" on top of "troubleshooting" ALL documented. And actual support that works with you until your machine is UP.
"friends has the interest"? Really? Really!? You know what? REAL friends don't let friends buy cheap Chinese drivers. 'cause it really isn't about the drivers as much as it is about the warranty, the support, and the knowledge to make it work.