> > > I don't get the impression that the STMBL guys are interested in a > "market".
Nor a lot of support. There's a misconception out there that if someone publishes the source code and/or schematics they don't need to provide any support. Of course if the software is huge or is so poorly written/documented that it's virtually impossible to follow then it's not really been published. Same with poorly written manuals or translated from another language. So if you are buying a motor and a driver what's a better deal? 1. DC Servo set including power supply from Automation Technologies for about $629 for 1.27 Nm. Minimal manuals. --- Or something like the HP_UHUs I made 4 of but using only two. I'm about $350 into each drive with replacement encoders. 2. AC Servo set running off 220VAC from Bergerda for about $350 with nicer cables and connectors, smaller and also 1.27 nM.. Translated manuals. --- I have one and I'm considering replacing two other axis with them. 3. STMBL drive for less than half but like Automation Technologies also requires some sort of power supply and needs RS422 drivers and isn't optically isolated since the drive section is optically isolated from the low voltage DC controller side. --- up side of STMBL drive is it can run AC Servo motors from about 36VDC all the way up to 350VDC. --- down side, driver chip discontinued, minimal support because the source code is published. So if you have an existing AC Servo motor, you can reconfigure an existing drive from the far east, like the Bergerda, or use something like a STMBL (which is a sweet package) but spend hours trying to get it to work. And in my case first prototype and then design, layout and have PC boards made for TTL to RS422 conversion. Also more time and cost. And it's true, the support from Bergerda where I'm pretty sure they are using Google Translate at times to write English, has been phenomenal they are also interested in selling more products. The STMBL designers don’t appear to care probably because they've not set up to manufacture. Andy, you've been the driving support behind the STMBL product and I can't thank you enough for your help. John > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > � George Fitch, Atlanta Constitution Newspaper, 1916 > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
