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5th Sep 2014, 08:14 AM #31
yeh, but the opposing point (not my point)….is your giving enough information initially that helps to give novices the incentive to do it entirely themselves and kill themselves. Highly unlikely but thats their point.
I was an electrical engineer STUDENT ('student' in bold because people like to take out of context) for a couple of years (I DROPPED OUT. need high light that), and took to electrical concepts easily when I was younger.
But despite the feeling of confidence with electrical work I would never rewire a motor myself. Just not uptodate enough with what needs to be done.
There must be a question of why bother anyway. Is it too difficult in this particular situation to just buy a new motor ?
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5th Sep 2014, 08:32 AM #32Most Valued Member
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While not a safety issue, when running a lathe and using it's electronic variable speed functions from a VFD, you need to take into account lubrication. Most bearings in headstocks are designed to be splash lubricated, if you run at a very low speed then you need to be wary and make sure you are still splashing around enough oil to lubricate the spindle bearings. When using it as original, the gears nearest the motor are still spinning at reasonably sufficient speed to splash the oil, even when a slow spindle speed is selected. If you are doing it electronically, this may not be the case. Stuart brought this to my attention some time back. Thanks Stu!
SimonGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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5th Sep 2014, 08:45 AM #33Senior Member
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- Sep 2008
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exactly why i hardly ever post in the forum anymore , i tend to read and pick out a few posts to follow but almost never post my reply or thoughts or experiences on what ever the subject or problem is . because you can normaly bet that out of all the thousands of people on here there will be some one that will flame you just becuase they can or becuase they have had a bad day and vent some of the anger or stress of the day on a poster ( bit like road rage , things tend to snowball from nothing )and some thing that gives me unwanted stress which eats away at me for a day or two , i dont need that i have enough stress running a bussiness , so i keep my posts and my ideas or thoughts on a subject to myself , lot easier than getting involved slinging match .
ps if its got wires coming out of it i mostly leave it alone , i am not a fan of wires unless it is very simple , though i have just made a small demagnetiser and it works like charm
johno'If the enemy is in range, so are you.'
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5th Sep 2014, 10:32 AM #34Member: Blue and white apron brigade
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There's nothing in this thread that I can see that comes into the "enough information category". I try to avoid providing specific wiring instructions and usually don't respond to questions like "where does this wire go". f you can point to a specific posts where you think we crossed the line that would be useful.
I was an electrical engineer STUDENT ('student' in bold because people like to take out of context) for a couple of years (I DROPPED OUT. need high light that), and took to electrical concepts easily when I was younger. But despite the feeling of confidence with electrical work I would never rewire a motor myself. Just not up to date enough with what needs to be done.
One of the problems with DIY electrical work is that few DIY would have the electrical testing gear to properly test out any mods.
There must be a question of why bother anyway. Is it too difficult in this particular situation to just buy a new motor ?
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5th Sep 2014, 11:59 AM #35
Don't worry about it.. The moderators are only following forum policy on electrical work, it seems to have become standard practice in the last few years, that whenever any electrical advice is being offered the disclaimer is cut and pasted into the thread. It's not casting a slur on the advice being given.
Mind you I haven't seen any disclaimers over posts offering advice on how to operate (potentially lethal) high powered metal and wood working machines... maybe that's coming next ...
And for what it's worth, the quality of electrical advice on the forum is generally very good.. The work of people like BobL on vfd motor power measurements is first class.
Ray
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5th Sep 2014, 07:14 PM #36
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5th Sep 2014, 07:16 PM #37
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