Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
Posted by
James Owens
on 2002-07-05 09:22:12 UTC
Hi John,
There is a little loss in power off the back end of the power range. I have
run a Bridgeport Miller, Surface Grinder and a large lathe all at the same
time where the material coming off is blue with the heat. In a home shop you
really don't do production depth cutting because it makes more sense to
preserve the tooling. My motors don't run hot or lumpy because I start a 2
hp idler-motor with the static converter and then all my other machines
self-start because there is the 3-phases.
If you want the machine get it, you'll not regret the decision. I spent 10
years moving heavy to very heavy machines around and it is very easy to do
with a roller and crow-bar. It is just a case of slow and easy and if it
starts to go away from you get out of the way. I don't work will other
people around and a machine is never pushed, it is inched along with the
bar.
Regards,
Terry
| That's as I expected really. But I'll call back again just to annoy them
and
| ask _how_ they'd go about upgrading it to three phase. I heard static
| converters only manage about 2/3rds of the full rating they're specified
| for. This, and the question I asked on moving machinery, is because the
mill
| at school is 440v 3phase and I'm really checking it's okay for me to offer
| them some money for it. There's no point me saying I'll take it only to
tell
| them I can't a few weeks later.
|
| John
There is a little loss in power off the back end of the power range. I have
run a Bridgeport Miller, Surface Grinder and a large lathe all at the same
time where the material coming off is blue with the heat. In a home shop you
really don't do production depth cutting because it makes more sense to
preserve the tooling. My motors don't run hot or lumpy because I start a 2
hp idler-motor with the static converter and then all my other machines
self-start because there is the 3-phases.
If you want the machine get it, you'll not regret the decision. I spent 10
years moving heavy to very heavy machines around and it is very easy to do
with a roller and crow-bar. It is just a case of slow and easy and if it
starts to go away from you get out of the way. I don't work will other
people around and a machine is never pushed, it is inched along with the
bar.
Regards,
Terry
| That's as I expected really. But I'll call back again just to annoy them
and
| ask _how_ they'd go about upgrading it to three phase. I heard static
| converters only manage about 2/3rds of the full rating they're specified
| for. This, and the question I asked on moving machinery, is because the
mill
| at school is 440v 3phase and I'm really checking it's okay for me to offer
| them some money for it. There's no point me saying I'll take it only to
tell
| them I can't a few weeks later.
|
| John
Discussion Thread
John
2002-07-05 06:12:42 UTC
Interesting, 3 phase in the UK
James Owens
2002-07-05 07:00:00 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
John
2002-07-05 07:39:24 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
James Owens
2002-07-05 08:04:46 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
John
2002-07-05 08:54:22 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
LEW BEST
2002-07-05 09:00:22 UTC
RE: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
James Owens
2002-07-05 09:15:49 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
James Owens
2002-07-05 09:22:12 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
LEW BEST
2002-07-05 09:26:19 UTC
RE: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
Ian W. Wright
2002-07-05 12:11:58 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
Jon Elson
2002-07-05 12:15:20 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
Jon Elson
2002-07-05 12:22:29 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
Jon Elson
2002-07-05 12:30:51 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
John
2002-07-05 12:51:16 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
John
2002-07-05 12:56:23 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
John
2002-07-05 13:02:15 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
JanRwl@A...
2002-07-05 19:26:03 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
JanRwl@A...
2002-07-05 19:32:52 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK
James Owens
2002-07-06 08:19:29 UTC
Re: [CAD_CAM_EDM_DRO] Interesting, 3 phase in the UK