Myford ML7

[Sean64]

Thank you for your vigilance, Pete!

It is soft steel of 8mm and of course I tried to apply the running tip first, but unfortunately it didn't fit:

View attachment 325457

The overhang is 42mm and I am very, very patient.
I adjust the top slide by 0.05mm with each pass and they come in at an angle.

With back gear, without hurry.

When turning down (without additional support as well) I was actually so careful and patient at the end that I ended up with only 0.002mm deviation over 40mm.
I found that quite ok, for now.

Thank you,

Carsten

--

Get in the habit of always supporting your workpiece regardless how careful you are .

 

[prepman]

Thank you for your vigilance, Pete!

It is soft steel of 8mm and of course I tried to apply the running tip first, but unfortunately it didn't fit:

View attachment 325457

The overhang is 42mm and I am very, very patient.
I adjust the top slide by 0.05mm with each pass and they come in at an angle.

With back gear, without hurry.

When turning down (without additional support as well) I was actually so careful and patient at the end that I ended up with only 0.002mm deviation over 40mm.
I found that quite ok, for now.

Thank you,

Carsten

--

I use a longnosed centre which gives clearance, but not as robust as the standard. The other option is to use a half dead centre. Another way is if it's a new make , then thread other end leaving a stub at the tailstock. Needs planning which comes with experience, which you'll no doubt obtain.
You never mentioned how you got on with test bar?

 

[25.4_mechanic]

Get in the habit of always supporting your workpiece regardless how careful you are .

I use a longnosed centre which gives clearance, but not as robust as the standard. The other option is to use a half dead centre. Another way is if it's a new make , then thread other end leaving a stub at the tailstock. Needs planning which comes with experience, which you'll no doubt obtain.
You never mentioned how you got on with test bar?

Good, I'll get into the habit of doing that. Thanks.

The test bar:
To finally get this done, I needed to be able to clamp my turning tools.
On that subject, I've been upgrading lately, both the tools and the holder - you've seen some of that in the pictures.
What I have done in the last few days has served this purpose.

I lost a lot of time with a crappy China QCTP and also had to fix my running tip ....

The test bar as far as it is now started out as a 30mm machine shaft and I had it turned down enough to run round.
Before unclamping it I marked it to the individual jaws of the chuck and I am really curious how it will run when I reclamp it ...


Carsten

--

 

[25.4_mechanic]

Hi all!

Question for the round:
Which bedway oil/slideway oil is preferably to be used with the Myford, a
CGLP 68
or a
CGLP 220
either according to DIN 51502 / ISO 3498???

Many thanks

Carsten

--

 

[Rannsachair]

I use

 

[prepman]

Hi all!

Question for the round:
Which bedway oil/slideway oil is preferably to be used with the Myford, a
CGLP 68
or a
CGLP 220
either according to DIN 51502 / ISO 3498???

Many thanks

Carsten

--

I use Mannol iso 46, same as my Kubota digger.

 

[25.4_mechanic]

I use

I use Mannol iso 46, same as my Kubota digger.

Thank you!

Now, once again, gaps in my knowledge are opening up:
In our Yanmar B50-1 we use Mannol ISO68 hydraulic oil, which I now also use in the drip oilers of the ML7 and get any desired drip speed set - at least for a short time before it readjusts itself in which ever direction it pleases.

Now you would think that ISO68 is the same as ISO68 - but obviously they are different oils ... Is now just the viscosity, i.e. thickness of the liquid described and only the vitamins and herbs are different for the intended use or how should I imagine this?



Carsten

--

 

[Rannsachair]

My understanding is that slideway oils have specific additives to improve how they stick to parts though on a hobby machine like a Myford I doubt it is critical and any hydraulic oil will be fine. Specifications on https://www.smithandallan.com/produ...il-68---lathe-milling-machine-tool-lubricant/

 

[Pete.]

Whilst any oil is better than no oil, sideway oil is better than hydraulic/engine/cooking oil. Yup don't need a lot of it because it does go a very long way.

 

[prepman]

Thank you!

Now, once again, gaps in my knowledge are opening up:
In our Yanmar B50-1 we use Mannol ISO68 hydraulic oil, which I now also use in the drip oilers of the ML7 and get any desired drip speed set - at least for a short time before it readjusts itself in which ever direction it pleases.

Now you would think that ISO68 is the same as ISO68 - but obviously they are different oils ... Is now just the viscosity, i.e. thickness of the liquid described and only the vitamins and herbs are different for the intended use or how should I imagine this?



Carsten

--

On no account use water.

 

[25.4_mechanic]

My understanding is that slideway oils have specific additives to improve how they stick to parts though on a hobby machine like a Myford I doubt it is critical and any hydraulic oil will be fine. Specifications on https://www.smithandallan.com/produ...il-68---lathe-milling-machine-tool-lubricant/

Thank you and thanks for the link

Whilst any oil is better than no oil, sideway oil is better than hydraulic/engine/cooking oil. Yup don't need a lot of it because it does go a very long way.

Thanks!

On no account use water.

Sound advice!

Although interestingly, this is where the root of the word for hydraulics comes from: Hydro => Greek hydōr = water

Carsten

--

 

[25.4_mechanic]

I just ordered this stuff (needed cutting oil anyway):



"1 x 1 litre with high-quality bed and slideway oil according to the requirements of DIN 51 502 / ISO 3498 - Viscosity 68.

Our demulsifying bedway oil CGLP 68 ensures very good friction-sliding behaviour at a slow delivery rate. Its multifunctional performance makes it suitable for hydraulic and slideway lubrication. These properties ensure a long service life even under difficult operating conditions.

The oil prevents stick-slip and ensures rapid separation of cooling lubricants. The lubricating film adheres to the sliding points due to adhesion sets.

Can also be used as a multifunctional oil for central lubrication and hydraulics.
Typical characteristics

Viscosity class ISO VG (40°C) DIN 51 562 mm2/s: 68
Density (15°C) DIN 51 757 kg/m3: 880
Pour point DIN ISO 3016 °C: < -10
Flash point COC DIN ISO 2592 °C: > 210
FZG test DIN 51 354 Damage level: 12

Meets or exceeds the requirements according to

Slideway oils according to DIN 51 502 CGLP
Cincinnati Machine P-47 / P-50 / P-53 way oil specifications
Sliding behaviour according to SKC Gleittechnik GmbH

Made in Germany: High quality product of German manufacture!
EUR 10,95 incl. 19% VAT"

-

The specs are soundig close to the ones in the link.

That'll do

Carsten

--

 

[prepman]

I just ordered this stuff (needed cutting oil anyway):



"1 x 1 litre with high-quality bed and slideway oil according to the requirements of DIN 51 502 / ISO 3498 - Viscosity 68.

Our demulsifying bedway oil CGLP 68 ensures very good friction-sliding behaviour at a slow delivery rate. Its multifunctional performance makes it suitable for hydraulic and slideway lubrication. These properties ensure a long service life even under difficult operating conditions.

The oil prevents stick-slip and ensures rapid separation of cooling lubricants. The lubricating film adheres to the sliding points due to adhesion sets.

Can also be used as a multifunctional oil for central lubrication and hydraulics.
Typical characteristics

Viscosity class ISO VG (40°C) DIN 51 562 mm2/s: 68
Density (15°C) DIN 51 757 kg/m3: 880
Pour point DIN ISO 3016 °C: < -10
Flash point COC DIN ISO 2592 °C: > 210
FZG test DIN 51 354 Damage level: 12

Meets or exceeds the requirements according to

Slideway oils according to DIN 51 502 CGLP
Cincinnati Machine P-47 / P-50 / P-53 way oil specifications
Sliding behaviour according to SKC Gleittechnik GmbH

Made in Germany: High quality product of German manufacture!
EUR 10,95 incl. 19% VAT"

As long as VW have nothing to do with the lab results?

-

The specs are soundig close to the ones in the link.

That'll do

Carsten

--

 

[25.4_mechanic]

As long as VW have nothing to do with the lab results?

Don't worry,

we fake our own results ourselves ... according to Chuchill's golden words ....

Have a nice day all

Carsten

--

 

[prepman]

Don't worry,

we fake our own results ourselves ... according to Chuchill's golden words ....

Have a nice day all

Carsten

--

As Basil Fawlty once said.....something something....

 

[25.4_mechanic]

As Basil Fawlty once said.....something something....

What does *Lord* Melbury have to do with this?

 

[slim_boy_fat]

What does *Lord* Melbury have to do with this?

Wasn't it Lord Melchard?

 

[25.4_mechanic]

Wasn't it Lord Melchard?

Basil Fawlty : Your *name*, please, could I have your name?

Lord Melbury : Melbury.

[the phone rings; Basil picks it up]

Basil Fawlty : [to Melbury] One second please.

[to phone]

Basil Fawlty : Hello?... Ah, yes Mr O'Reilly, well it's perfectly simple. When I asked you to build me a wall I was rather hoping that instead of just dumping the bricks in a pile you might have found time to cement them together... you know, one on top of another, in the traditional fashion.

[to Melbury, testily]

Basil Fawlty : Could you fill it in, please?

[to phone]

Basil Fawlty : Oh, splendid! Ah, yes, but *when*, Mr O'Reilly?

[to Melbury, who is having difficulty with the register]

Basil Fawlty : there - there!

[to phone]

Basil Fawlty : Yes, but when? Yes, yes... ah!... the flu!

[to Melbury]

Basil Fawlty : *Both* names, please.

[to phone]

Basil Fawlty : Yes, I should have guessed, Mr. O'Reilly that and the potato famine I suppose...

Lord Melbury : I beg your pardon?

Basil Fawlty : Would you put *both* your names, please?...

[to phone]

Basil Fawlty : Well, will you give me a *date*?

Lord Melbury : Er... I only use one.

Basil Fawlty : [with a withering look] You don't have a first name?

Lord Melbury : No, I am *Lord* Melbury, so I simply sign myself "Melbury".

[there is a long, long pause]

Basil Fawlty : [to phone] Go away.

[puts phone down]

Basil Fawlty : ... I'm *so* sorry to have kept you waiting, your lordship... I *do* apologize, *please* forgive me. Now, was there something, is there something, anything, I can do for you? Anything at all?

 

[slim_boy_fat]

Ah, Basil.... I was thinking of Blackadder.....sorry . (too many Lords a-leaping )

 

[25.4_mechanic]

Ah, Basil.... I was thinking of Blackadder.....sorry . (too many Lords a-leaping )

Oh, Blackadder - I love that series.

Melchard was Stephen Fry's role, right?

It's too bad that Rowan Atkinson is known in my country almost exclusively from Mr. Bean episodes, which are also funny, but much shallower.
However, I don't know if Blackadder was ever dubbed into German, as Mr.Bean didn't require that much work ...

Carsten

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