#linuxcnc-devel | Logs for 2014-09-29

[21:34:16] <PetefromTn_> yeah just 7.5HP reduced to 2-1 at 12k RPM
[21:34:33] <ssi> I imagine mine's the same
[21:34:38] <PetefromTn_> No idea
[21:34:43] <ssi> that's good though; a 15hp vfd is expensive enough, I was worried I'd have to go 30hp
[21:34:45] <PetefromTn_> Honestly probably not
[21:34:57] <ssi> well maybe not exactly the same
[21:35:00] <ssi> but it's probably 7.5hp rather t han 15
[21:35:01] <PetefromTn_> that motor came with the Control Techniques control
[21:35:07] <PetefromTn_> most likely
[21:37:26] <CaptHindsight> PetefromTn_: which bearings did you change? the ones in the motor or in the end of the spindle?
[21:37:36] <PetefromTn_> motor
[21:38:58] <CaptHindsight> http://www.ebay.com/itm/CINCINNATI-MILACRON-ARROW-500E-CNC-SPINDLE-UNIT-CT40-CAT-40-TAPER-0612629110000/161426435439 the ones in the spindle look like a much larger project
[21:40:27] <ssi> don't tell me that :'(
[21:40:43] <CaptHindsight> you didn't hear it from me
[21:40:50] <ssi> mine needs bearings
[21:40:52] <ssi> but the bearings come with it
[21:40:55] <PetefromTn_> meh my friend in PA has the same exact machine and did it, he said it was not too bad at all really.
[21:41:49] <KimK-laptop> Hi, back for a bit. Sometimes the dual HP rating is for overload. Maybe 7.5HP continuous, 15 HP for 30 min with 30 min off, or something like that, need to see motor manual or details, etc. What's the diff between the two motor plates, one says 14A and one says 5.5KW?
[21:42:36] <ssi> KimK-laptop: sorry, the 7.5/15 thing I was talking about was somewhere else. The machine I'm buying is a sabre 500, it's avery similar machine, but not exactly the same, and the seller listed it as a "7.5/15 hp spindle"
[21:42:43] <ssi> pete's motor definitively says 5.5kw
[21:43:01] <KimK-laptop> OK.
[21:43:03] <ssi> but it definitely seems to be an induction motor
[21:43:03] <PetefromTn_> yeah it's 5.5 kw
[21:43:39] <KimK-laptop> Yes, induction, the "slip" amount is a giveaway.
[21:44:10] <KimK-laptop> So, good, problem solvable.
[21:44:39] <PetefromTn_> good to hear that....
[21:44:43] <CaptHindsight> ssi: not too far from you http://www.ebay.com/itm/Matsuura-800V-CNC-Vertical-Mill-/201182029062
[21:44:53] <PetefromTn_> he already bought one LOL
[21:45:04] <ssi> yeah too late now :)
[21:45:07] <KimK-laptop> And as I recall, Arrows are not too bad, except for the "odd" control, so, yay LinuxCNC!
[21:45:10] <ssi> wire transfer went through this morning
[21:45:16] <PetefromTn_> I love my arrow
[21:45:24] <ssi> KimK-laptop: the cincis are definitely nice machines, and good candidates for retrofit it seems
[21:45:26] <PetefromTn_> damn machine is very simple and precise.
[21:45:37] <ssi> they're getting to an age where people are having tons of issues with the control electronics and drives
[21:45:41] <ssi> but the iron is nice
[21:45:45] <PetefromTn_> all pneumatic and electric
[21:45:48] <ssi> == cheap machines for retrofits :)
[21:46:07] <PetefromTn_> no hydraulics to deal with
[21:46:45] <PetefromTn_> with LinuxCNC it feels like a new machine almost...once we get this toolchanger and spindle orient working it will be the BEES KNEES!!!
[21:47:01] <ssi> agreed
[21:47:11] <KimK-laptop> Yes, and I saw the roller ways, so, good for contouring and other high-travel complex shapes in aluminum. Maybe not so good for inconel, hard stainless, etc.
[21:47:28] <KimK-laptop> titanium
[21:47:37] <ssi> I don't do much in exotics :)
[21:47:38] <KimK-laptop> all that ugly stuff, lol
[21:47:39] <PetefromTn_> I have only cut a few things in steel so far....no issues whatsoever tho
[21:47:40] <ssi> mostly aluminum
[21:48:12] <PetefromTn_> it is a linear rail machine but the rails are very large and heavy
[21:48:25] <ssi> 30mm I think
[21:48:26] <KimK-laptop> Steel should be OK too. Also cast iron, but it makes a mess everywhere.
[21:48:38] <PetefromTn_> cast iron is soft really
[21:49:33] <PetefromTn_> I machined a bunch of BMW custom brackets for a local guy that customizes them out of steel awhile back when I first got the machine working and it was quite uneventful LOL
[21:50:46] <CaptHindsight> http://www.ebay.com/itm/Used-Mori-Seiki-MV-45-40-CNC-Vertical-Mill-with-Fanuc-11M-Control-/251656593381
[21:52:40] <KimK-laptop> You might want to check and see if any of the "economy" builders of vector drives offer parameter selection inputs. I know that Baldor's did in the older vectors, so I imagine the newer ones do too, haven't used one since they came out. Four sets of parameters selected with two 24VDC input bits.
[21:53:19] <PetefromTn_> mine is a Hitachi WJ200-110LF
[21:53:32] <KimK-laptop> (Most stuff I buy is from eBay, rather than new-out-of-the-box, lol.)
[21:53:33] <PetefromTn_> It has a LOT of parameters most I do not understand LOL
[21:58:36] <PetefromTn_> so what do you think how do we proceed here with getting spindle orient working on this machine using that VFD and the motor I have?
[22:15:58] <KimK-laptop> Sorry, I didn't search for that manual, I was away a bit. Is there a link to that pdf? I'll look it over. But have to leave here shortly, back at home in a few minutes.
[22:16:44] <PetefromTn_> hang on...
[22:17:31] <PetefromTn_> http://driveswarehouse.com/documentation/Hitachi/WJ200M.pdf
[22:17:45] <KimK-laptop> OK, let me look...
[22:18:19] <PetefromTn_> http://driveswarehouse.com/documentation/Hitachi/WJ200R.pdf quick reference guide
[22:35:04] <KimK-laptop> Ha, so 15kW to drive a 5.5kW motor? I guess the drive should be "comfortable"? Still reading...
[22:39:37] <PetefromTn_> well they told me to derate it by half..
[22:40:16] <PetefromTn_> the smaller ones were not that much cheaper really.
[22:40:35] <PetefromTn_> besides I like Comfortable ;)
[22:48:18] <PetefromTn_> Well gotta get to bed. talk tomorrow. Gn8
[22:53:43] <KimK-laptop> PetefromTn is gone, and I'd better go too. Goodnight all.