I bought some drivers at Stepper Online to replace some drivers I bought from Stepper online and the replacements were night and day better.
What matters is the model number and design of the driver, not the reseller. During the years I used the first set of drivers, the design moved forward and now is 100% digital with very good MOSFETs. The old drivers caused the motors to make a high-pitched sound. These old drivers also had large heat sinks on them. The new drivers are silent and never get warm and don't have heat sinks. Stepper Online's top-tier drivers are made by Leadshine. None of the on-line resellers actually make their one stuff, it is all private-labeled. The newest thing is closed-loop stepper motors. These are good because the controller limits the current to only what is needed and this keeps the motor much cooler and somehow dramatically increases the motor's performance On Mon, Mar 8, 2021 at 6:52 PM John Dammeyer <[email protected]> wrote: > I've been using the Bergerda motors for a while now. Brought in a couple > of 7A stepper motor drives to replace a noisy whining stepperonline model. > Surprisingly buying two with shipping was only $5 each more than the > stepperonline through Amazon.ca with free Prime shipping and it's a much > nicer unit, bigger heatsink, no whine. > > Last year when I went looking for a VFD and 3 phase motor for my mill I > rapidly found that an AC servo with the same power rating as the 2HP single > phase motor was less than a new three phase motor and VFD. And buying > direct through Alibaba even with shipping got me a motor/drive that was > cheaper than through EBAY. > > Because I've been so positive about their drives and support the Bergerda > sales people have been asking me who would make a good distributor and > local supplier for the USA. I'm in Canada and I learned a long time ago > it's not cost effective to import to here and then sell into the USA. > > Obviously the products they sell are not meant just for milling machines. > Just about any automation project that has a need for motors would work. > > Any suggestions? > > Thanks > John Dammeyer > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
