Re: Magnetic indicator base demagnetizing
Old steel or alloys (AlNiCo for example) magnets used on car,
bike or telephone magnetos, galvanometers, ...? were easily losing
their field strength when decoupled from their armatures or when
shocked or annealed. Modern ones e.g. Neodymium are far more
strong, they almost don't or, at least insignificantly do.
Consequently, from time to time or mandatorily if dismantled
these magnetic fossils were needing a re-magnetization that
nowadays can easily be done. It's a matter of Ampere x turns.
Here's a link that will make Jacques' life, otherwise for English
people googletrans is your friend !
This is only a piece of public information, not a how-to
procedure. Of course, it's up to you to protect yourself. I'm not
responsible of any kind of accident that might occur.
On 15.04.24 02:55,
Ralph Hulslander via groups.io wrote:
toggle quoted message
Show quoted text
Why would taking it apart lose
most of the charge?
|
Re: Moving my "new" Grizzly G1006
After doing a little more research this is probably a G1007 mill/drill that had the power feed on the left end. The hand crank is not required at both ends.
|
Re: Moving my "new" Grizzly G1006
You might try contacting Grizzly to see if they have the part and what it is for. Even though the mill is discontinued they may have some useful information. If you can't find the part could you make one?
|
Moving my "new" Grizzly G1006
Someone sent me this excellent article on how to disassemble and move one of these mills. (The rest of the stiff in hood website is interesting too).
This guy moved his mill twice and explains in detail how to take it apart. He even weighed the individual parts, which was very comforting.? Despite being well into geezerhood, I work out pretty regularly and I think I'll be able to pick up all the parts on this list. Also I have a come along and know how to use them. That's what he used to lift off the head and that sounds quite practical if I can find an overhead beam at the seller's factory.
?I have one question for you guys though. This mill is missing the left hand crank handle for the X-axis leadscrew. (Possibly removed at some point to fit a motor, which was sold to someone else at some point).? Do I actually need one? Mini-mills have never had more than one crank and I don't really understand the reason why big mills have two unless moving the table during some operations requires an enormous amount of force.
So should I keep my eyes open for another crank handle or does it matter??
Mike Taglieri?
|
Re: LMS 5000 bed extension
The oil cup is good if you can fit it.? The problem with zerks, as mentioned, is that fine metal particles will collect where the ball meets the body so every time you push some lube in you're also pushing the grit in.? Whether you wipe or not.? Get ones that have covers.
|
Re: LMS 5000 bed extension
Yes.? Using a "wick" will usually work out fine if only a scant amount of oil is needed to get the job done.? It is my guess that the clearances involved in the parts, in general, on these things is loose enough that it might be hard to get enough oil in with a wick.
It is pretty typical to use an oil cup for this sort of thing, but they can be too bulky for some locations.? One nice thing is that you can flip the lid and see if you are "low" on oil.? But if the clearances are quite loose, the oil may drain out pretty quickly.
A Zerk fitting can certainly be used for oil.? It is more compact and you can shove anything through it you want.? But it's good to wipe it clean first so you avoid shoving debris in with the lubricant.
Charles E. "Chuck" Kinzer
On Monday, April 15, 2024 at 07:05:51 PM PDT, upand_at_them via groups.io <upand_at_them@...> wrote:
Drill a hole and push a piece of felt into it.? It will keep the swarf out, but still allow oil through.
Mike
|
Re: LMS 5000 bed extension
Drill a hole and push a piece of felt into it.? It will keep the swarf out, but still allow oil through.
Mike
|
Re: LMS 5000 bed extension
I think most people just drill them for push-in button oilers, so it would depend on the size of the oilers.? Could just drill a hole and oil through there, but that leaves the possibility of contamination from machining particles.
On Monday, April 15th, 2024 at 8:04 PM, Stan Gammons via groups.io <buttercup11421@...> wrote:
The lead screw brackets on my mini lathe do not have oil holes.
Anyone know what size they should be?
Stan
On 4/15/24 08:50, Ralph Lehotsky wrote:
I drilled and tapped my lead screw brackets and added zerk
fittings. Some others prefer oil, but I like zerks. They work
well on John Deere equipment bearings, so I trust them.
ralphie
|
Re: LMS 5000 bed extension
The lead screw brackets on my mini lathe do not have oil holes.?
Anyone know what size they should be?
Stan
On 4/15/24 08:50, Ralph Lehotsky wrote:
toggle quoted message
Show quoted text
I drilled and tapped my lead screw brackets and added zerk
fittings.? Some others prefer oil, but I like zerks.? They work
well on John Deere equipment bearings, so I trust them.
ralphie
|
Re: LMS 5000 bed extension
Aren't zerk fitting for injecting grease with a grease gun? How do you plan to use them for oil?
On Mon, Apr 15, 2024, 9:50 AM Ralph Lehotsky via <ralphlehotsky= [email protected]> wrote: I drilled and tapped my lead screw brackets and added zerk fittings.? Some others prefer oil, but I like zerks.? They work well on John Deere equipment bearings, so I trust them.
ralphie
|
Re: Magnetic indicator base demagnetizing
Actually, use non-magnetic tools - there are things other than brass that are non-magnetic! I'm fond of getting a bag of popsicle sticks from a craft store & shaping them into useful tools. There are also a bunch of useful plastic tools made for working with adhesives.
Roy
|
Re: Magnetic indicator base demagnetizing
ho? remember? also
only? use? brass tools? to? work on? these??
like? worl? on magnetron??
if? you? work? on magnetron? whit a? iron? toll? you modify? his mag power? and? it not? work? after
it is? the same? ?here
if? you? work? whit? iron? you modify? the? power of? mag? of? the 2? ?part??
and? it is? not? blance? after? ??
jack 47 71
|
Re: LMS 5000 bed extension
I drilled and tapped my lead screw brackets and added zerk fittings.? Some others prefer oil, but I like zerks.? They work well on John Deere equipment bearings, so I trust them.
ralphie
|
Re: Magnetic indicator base demagnetizing
THESE? MAGNETIC? SYSTEM? ARE? DIFFICULT? TO REPRODUCE
the mag? have? to? be? in? the? exact position for? his polarity? ?orientation
if? you? mark? both? mag? for? the? orientation?
no problemo?
you? can? made a system? like this? by? position? the mag? in a? special? position? only?
when? you? turn? one? ?the mage? incrise? ? in? the? other possition? the mag? in NUL
jack 47 71
|
I have order from LMS? but never take phone.
Good to know they are very helpful on phone?
Thank for review
Dave?
|
Re: Magnetic indicator base demagnetizing
I do not know.
I told about when asking questions about rebuilding a magneto back in 1972.
Dave?
|
Re: LMS 5000 bed extension
I should of taken more pics.? The only ones I took are of the
control box wiring.
The tap from LMS held up well, but the 2.5mm drill bit didn't.?
Tapping the holes was very easy.? Perhaps using the Tap Magic
EP-Xtra helped.
Yeah, I see some differences in the written instructions and the
video.? I'll sort it out as I continue this project.? Wondering if I
should drill oil holes in the lead screw brackets since my brackets
don't have oil holes.
Stan
On 4/14/24 06:30, Ron Y wrote:
toggle quoted message
Show quoted text
Heh - wrote Take Pictures but you are already
reassembling. The written instructions are lacking in a few
areas. Watch how the gears go inside the gearbox. Hopefully you
have plenty pf pictures. Make sure you are using good taps, not
the cheap HF stuff. Mine broke after the fourth hole or so.
Watch the video. He does skip a few minor things when
reassembling as he plans on doing future upgrades. I also
changed the bearings since I had mine apart.
Good luck
Ron
|
Re: Magnetic indicator base demagnetizing
Why would taking it apart lose most of the charge?
On Sun, Apr 14, 2024 at 2:03?PM davesmith1800 via <davesmith1= [email protected]> wrote: It depends on the magnetic.?
Like a magnetic chuch there most have a charge magnetic.? If take the chuck apart the magnet will loose most of charge.?
Do not buy use magnetic chuck unless check first.?
I only new one guy who did changing in 1970's.? He build his own charging station using a lot of big capacitors.?
Dave?
Roy
Apr 13? ?
I doubt that pulling the magnet would de-magnetize it; the base was probably built by inserting a magnet into the housing
|
Re: LMS 5000 bed extension
There are/were lots of discussions about the rear slide plate some time ago. On larger machines, setscrews through the slide plate are a common means of adjustment - on these relatively small machines, adding a filler piece is a better fix. When you get the slop down to a reasonable amount, you'll probably find you need to refine the surface on the underside of the bed.
IIRC, there were some folks who added the old bed to the longer one, with everything mounted on a rigid base.
Roy
|
Re: LMS 5000 bed extension
Like photo?
As metric goes I have all taps in inch.?
So I pick a inch tap close to metric thread size.?
Like 6M I use 1/4NC?
Sometimes I have buy a metric? tap so today I 10MM x 1.0MM LH and one 12M tape.?
Dave?
|
chrisser
Ralph Lehotsky
davesmith1800