Re: Lipstick on a pig?
That's how I did it:
https://www.ajawamnet.com/ajawam3/swarf/DSCN2848.JPG
https://www.ajawamnet.com/ajawam3/swarf/lathetopassylg.gif
By
WAM
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#119498
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Lipstick on a pig?
Some time back I started working on a DRO scheme for my lathe cross slide.? There's not a lot of room on top so many of the approaches I saw had one disadvantage or another.? As a result I came up
By
Mark Kimball
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#119497
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Re: Mini lathe motor temperature
You right about taking heavy cuts at low speed on mini lathe. The gauge is on there so do not have problem.
Have a photo of the (spindle crank)?
By
davesmith1800
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#119496
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Re: Mini lathe motor temperature
Your welcome.
It is probably lesser problem if you know before the gets to hot.
It some of problems I read about mini lathes for years.
Dave
By
davesmith1800
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#119495
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Re: Mini lathe motor temperature
I was going add a fan in November.? After thinking about the heat I need to know what heat is and someway to know if cooling fail.
Also you do all your machining at 2,000 rpm.
I even thinking of
By
davesmith1800
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#119494
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Re: Mini lathe motor temperature
Dave, I am wondering.... Have you been running the motor at less than full speed? The cooling on these is typically based on the motor running at full speed so the fan can move enough air to maintain
By
ram50v8efi
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#119493
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Re: Mini lathe motor temperature
Dear All, Many thanks for the motor info. David from across the Pond.
By
DAVID WILLIAMS
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#119492
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Re: Mini lathe motor temperature
Why should a minilathe motor be getting extremely hot in the first place?
Mine never does. These machines aren't made for heavy use and cuts should
be light. On the rare occasions that I've taken
By
Miket_NYC
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#119491
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Re: Mini lathe motor temperature
105°C sounds rather suspiciously (or perhaps not that suspiciously) like the lower temperature limit on most magnet wire used in motor coils.
Gets hot, the enamel melts and the coil shorts out.
By
Tony Smith
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#119490
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Re: Mini lathe motor temperature
Here the finished install.
1) The first shows the the blue is heat shink tube with a sealer to protect the tubing left a little coil on the outside if gauge needs to be removed.
2) The second? Shows
By
davesmith1800
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#119489
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Edited
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Re: Mini lathe motor temperature
I have fans.
I was more interested in know what real temperature is before something happens.
If ot is big problem I will add a fan. But still keep the temperature gauge just case the fan fails
It
By
davesmith1800
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#119487
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Re: Mini lathe motor temperature
It's a good example of why ya should have a few old computer fans in yer
inventory .
animal
By
mike allen
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#119486
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Re: Mini lathe motor temperature
50% of motors running full speed the bearings will only last 20,000 hour but the coil last a lot longer dust is next problem.
But biggest reason failed of a motor running lower speed is over heating.
By
davesmith1800
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#119485
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Re: Mini lathe motor temperature
Thermal images of the LMS motor? - https://www.ajawamnet.com/ajawam3/swarf/LMS3900.pdf
By
WAM
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#119484
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Re: Mini lathe motor temperature
FYI
If motor is over 145°F [63°C] do not touch it will burn.
So can be burn at a lower temperature and some can go above.
Dave
By
davesmith1800
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#119483
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Mini lathe motor temperature
After researching of motors are 221°F [105°C] after that the life is shortened.
The outside temperature is about? 60°F to 70°F? [15 to 20°C ] less the coil temperature.? So if outside is could
By
davesmith1800
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#119482
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Re: Using wood for mini-lathe and mini-mill accessories
This is my last solution, for a specific job. A big clamp keeps it stable. 150 cm around.
Johannes Lavoll.
By
Johannes
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#119481
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Re: Using wood for mini-lathe and mini-mill accessories
I've had good results with wooden accessories made out of Baltic Birch plywood. The real Baltic Birch has thinner layers than construction grade plywood + they're all birch. It's a bit pricy, but,
By
Roy
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#119480
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Re: Using wood for mini-lathe and mini-mill accessories
I recently used wood to make part of a spindle indexer for my mini-lathe. (see attached photos). The metal parts are borrowed from my spindle hand-crank. I made a new bushing which snugly fits the
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Walter Wpg
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#119479
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Re: Using wood for mini-lathe and mini-mill accessories
Metal lathes are often used in ornamental wood turning. There are examples from David Lindow and Plumier on YouTube. You can mount a cross slide on a woodturning lathe for precision work of necessary
By
Colin Spencer
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#119478
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