On Wednesday 30 December 2020 01:11:45 Dave Cole wrote: > I was thinking about drives such as these on Ebay. > > https://www.ebay.com/itm/AC220V-2HP-1-5KW-8A-VFD-Variable-Frequency-Dr >ive-Inverter-Controller-Converter/124311510881?hash=item1cf18b1f61:g:dD >IAAOSwj1hfRNRg > > https://www.ebay.com/itm/1500W-2HP-8A-Variable-Frequency-Drive-Inverte >r-VFD-Single-To-3-Phase-220V/233690529209?_trkparms=aid%3D1110006%26alg >o%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20200520130048%26meid%3D9c6e725f17c >c4ccfa318eb7326a84fa0%26pid%3D100005%26rk%3D2%26rkt%3D12%26mehot%3Dco%2 >6sd%3D124311510881%26itm%3D233690529209%26pmt%3D1%26noa%3D0%26pg%3D2047 >675%26algv%3DSimplAMLv5PairwiseWebWithDarwoV3BBEV2b%26brand%3DUnbranded >&_trksid=p2047675.c100005.m1851 > > If you do a search for "VFD 1.5KW" on Ebay those will pop up. > > These are crazy cheap. But if they work and you have a 3 phase > drill press, or a grinder you picked up at a auction, these would be > hard to beat. > Something like this might work on a 3 phase mill spindle motor as > well. > > Ebay seems to be flooded with dirt cheap VFDs, of unknown quality > right now.
Most are HuanYang, and decent, reliable stuff. I'm using 2 of them. > Dave > > On 12/26/2020 6:22 PM, Gregg Eshelman via Emc-users wrote: > > I picked up a couple of 220V 1PH to 220V 3PH VFDs, rated for up to > > 3HP, for under $300 each new. Don't recall the brand and I'm not > > home where I can go look in the shop. What I find insane is how > > *simple* electronic phase converters that do nothing but change > > single to three phase, doing nothing to the voltage, no speed > > adjusting, no remote control, no where to connect a braking > > resistor, are so expensive. $1500 and all it does is exactly the > > same thing as an old rotary phase converter. > > > > So rather than a "plug and play" box for my Monarch 12CK I had to > > buy a fancy box with almost 100 settings I had to fiddle with just > > to get it to run the antique 3HP motor without hitting overload. > > Still have to slip the clutch a little in higher gears but once it's > > turning it's 100% solid. Adding some MolySlip gear lube to the > > headstock made it quieter and easier to get spinning. > > > > On Saturday, December 26, 2020, 11:50:37 AM MST, John Dammeyer > > <jo...@autoartisans.com> wrote: I looked at prices for a 2HP 3phase > > and a VFD (like Hitatchi Vectorless?) and found without shipping the > > price was approaching $600. For less than that I ended up with > > Bergerda. _______________________________________________ > > 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 Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
