Author Topic: Lathe wear  (Read 3360 times)

Offline warrenmaker

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Lathe wear
« on: June 08, 2018, 04:10:42 AM »
Hi guys,
I have just started posting on this site and am just completing my first steam engine over in the castings section.

I have a tech question on my lathe. It is a Liang dei Taiwanese tool room lathe. I purchased it new about 2 years ago. I estimate I have done about 2-300 hours on it. I look after it meticulously. So much so my wife reckons I pay it more attention than her... :censored:

Any way as you can see by the attached pic; the ground front bed way is starting to get polished from the carriage moving back and forth. Is this normal. It is not something u can feel,,, Just see. Also u will notice I have the wipers removed for cleaning. They are formed rubber type and work perfect as far as I can see.
I oil the oiler points with a mix of canola oil and gear oil. This mix has worked perfectly on my previous 2 lathes.

Any thoughts appreciated.

Thanks.
« Last Edit: June 08, 2018, 04:14:23 AM by warrenmaker »

Offline 10KPete

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Re: Lathe wear
« Reply #1 on: June 08, 2018, 04:33:11 AM »
That looks great! The only gotcha is that when they ground the ways the wheel was slightly off and the travel speed a bit high.
That's why the shiny spots aren't an even stripe.

Nice!

Pete
Craftsman, Tinkerer, Curious Person.
Retired, finally!
SB 10K lathe, Benchmaster mill. And stuff.

Offline warrenmaker

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Re: Lathe wear
« Reply #2 on: June 08, 2018, 04:35:29 AM »
OH.. OK,
thanks Pete. So nothing to worry about then?

Offline 10KPete

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Re: Lathe wear
« Reply #3 on: June 08, 2018, 04:41:11 AM »
All's right there..

Pete
Craftsman, Tinkerer, Curious Person.
Retired, finally!
SB 10K lathe, Benchmaster mill. And stuff.

Offline petertha

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Re: Lathe wear
« Reply #4 on: June 08, 2018, 06:30:53 AM »
I have a 1998 Taiwan lathe under the King label (Canada) that is probably quite representative of the quality of that era. When I replaced my power feed rod & improved the worm gear bracket block casting with something much better, I had the apron & top slide off to get a good look under the hood. Rather appalling. The nice, shiny accurately ground vee ways run along something err..... significantly less that that. I blued the surfaces it & just took the lightest of stoning passes to expose the hilltops. There is no way I would call this scraped. Not even 'oil retention' frosting, its cruder than that. Here you can see I'm doing some unscientific pull tests so evaluate if I improved things. First on thin WD40 film, then on proper way oil. Well, somehow the combination 'works'. Quite perplexing because the lathe itself is very tight & accurate. Basically it takes very little pull force, once it 'breaks' it slides like a curling stone. Re-assembled with the mechanical advantage of geared carriage handle, all is well, it moves like on butter.

I would encourage you to have a peek one day. Apparently there was a huge shortage of files, de-burring tools & chamferring bits in Taiwan back then (that's a joke btw). Also my apron oil galleries & ports were completely filled with what I suspect was the brown waxy mung that coats the machine coming overseas. My apron gears & shaft journals never saw a drop of lubrication oil even though I was religiously injecting the nipples. Hope this helps!

Offline petertha

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Re: Lathe wear
« Reply #5 on: June 08, 2018, 06:36:46 AM »
ps make sure you have your wiper shields on so grit doesnt make its way where it doesnt belong. Mine are really cheesy plastic but Im going to redesign them & get them 3D printed. I want the hard plastic to be a few thou off the vee for mitigating swarf or grit. But I'm also going to integrate an enclosed pocket which contains .25" felt material. It will be saturated with way oil via the existing lubrication nipples. The idea being it sweeps & prevents the finest debris & self lubricates

Online Jo

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Re: Lathe wear
« Reply #6 on: June 08, 2018, 07:27:45 AM »
When I read the title of this thread I had images of it being about what clothing we wear when we use a lathe   :embarassed:

It must be too early in the morning or I am getting  :old:  :lolb:

Jo
Enjoyment is more important than achievement.

Online Jasonb

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Re: Lathe wear
« Reply #7 on: June 08, 2018, 07:39:36 AM »
You were getting confused with Eric and Zee's thread.

Online Jo

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Re: Lathe wear
« Reply #8 on: June 08, 2018, 07:40:42 AM »
Yes, I had just been reading that one  :facepalm:

Jo
Enjoyment is more important than achievement.

Offline steamer

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Re: Lathe wear
« Reply #9 on: June 08, 2018, 10:25:17 AM »
Wot Pete said    it's fine.
Dave
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Damned ijjit!

Offline steamer

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Re: Lathe wear
« Reply #10 on: June 08, 2018, 10:48:01 AM »
Though   I'd get some proper Vactra #2 way oil for it...
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online Vixen

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Re: Lathe wear
« Reply #11 on: June 08, 2018, 01:55:25 PM »
 :ThumbsUp: :ThumbsUp: to Vectra #2

Mike
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Sometimes, it can be a long and winding road

Offline warrenmaker

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Re: Lathe wear
« Reply #12 on: June 30, 2018, 02:44:07 AM »
Thanks guys, I will go source some Vactra.... although I have no idea where from... ;D

Offline 10KPete

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Re: Lathe wear
« Reply #13 on: June 30, 2018, 03:24:05 AM »
Vactra is a name of the product from Mobil Oil Co.  Check around for  1) Shop suppliers 2) Mobil oil distributors.

Pete
Craftsman, Tinkerer, Curious Person.
Retired, finally!
SB 10K lathe, Benchmaster mill. And stuff.

Offline john mills

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Re: Lathe wear
« Reply #14 on: June 30, 2018, 07:49:46 AM »
at work we used to use shell t68  it's a slipway oil

 

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