The main problem is that you keep trying to run these cheapo 24000rpm spindles at speeds less than 9000rpm for extended time periods. Of course you're going to have trouble cooling it, (or have much usable torque.) They are made for wood carving, not milling metal.
Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -----Original Message----- From: Gene Heskett <[email protected]> Sent: Wednesday, November 25, 2020 9:38 PM To: Enhanced Machine Controller (EMC) <[email protected]> Subject: [Emc-users] Changed mind on motor, now for sale [EXTERNAL EMAIL] Be sure links are safe. Greetings all; I bought a good 4 bearing motor to replace the partially blocked water cooled 1.5KW motor that came on the 6040 mill. But thinking on the 110 volt version's performance at the lower revs, and the flickering of the lights when its running slow, I've decided the 2.2KW version is a bit much for the 120 volt wall plug wiring it my garage. I am adding a 250 volt run to the machine so I can use a 220 vfd and motor, and ordered that same motor and its matching vfd for 220 volt service. So these two motors will be for sale along with a 1.5kw vfd, all for 110 volt service. The OEM motor has about 20 hours service on it, the good one is some what unpacked, repacked and brand new. The vfd has been reprogrammed to properly drive the OEM motor. It does that very well down to about 1000 revs. I've got $160 in the new 4 bearing 2.2kw & the $125 vfd has a few hours on its capacitors, estimated 5 year life, so make me an offer if you can use them. Thanks everybody. 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
