Lathe cleanliness

[Matt Rutter]

Guy and gals...

Please be aware that not tidying up after yourself really screws thing up for others!

I went in to use the lathe yesterday, and had to dismantle the chuck before I could use it!

Someone had been boring brass and failed to clean up after themselves... hints - boring tool installed on the tool post, brass swarf everywhere, and a crunchy chuck full of brass chips that literally would not wind in far enough to grip my piece.  Fortunately it wound out far enough for me to extract the jaws, blow out the scroll, and generally clean it up.

I don't know or care who that was... hopefully this is enough of a prod for them to reform their behaviour....  but just remember, you're on video when using the lathe!

On this occasion, I'm actually rather grateful to the miscreant, as I now know how to take the jaws out, and clean out the scroll, and I made sure to do it after my own boring job!

If anyone wants to be shown how to do this, please ask, and I'll be delighted to demonstrate... I'm in every Tuesday...

Matt

[Dean Forbes (PERS)]

you should never blow into a scroll - actually using air on the chuck is not advised can destroy kit like that 

before dispensing advice please check with a maintainer 

[Dean Forbes (PERS)]

When cleaning the machine it should be thoroughly vacuumed first 

On Wednesday, 27 November 2019 19:59:51 UTC, Matt Rutter wrote:

[Matt Rutter]

Dean.. I'm happy to be enlightened further... As I found it, the chuck was unusable...  I backed out the jaws as I would to change from external to internal...  wiped the backs of the jaws down to remove all brass swarf.  With the jaws out, I ran the scroll round, using the chuck key, many times, blowing it out with the compressor until no swarf was visible. Afterwards it ran in and out beautifully smoothly. 

This might not be the perfect maintenance  procedure, but it's got to be better than not cleaning up at all....

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[Dean Forbes (PERS)]

You should have referred this to a maintainer as a user you are not authorised to repair the machine

Surface "mess" = cleaning

Impacted Brass = maintenance

Brass is an abrasive very abrasive (and strangely enough soft and brittle it is a interesting material) 

Blowing with compressed air drives chips in and is not to be done 

Your comments about house keeping are valid and appropriate we should all be diligent and vigilant in this domain

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[Matt Rutter]

Dean...  I don't want to get into an argument with you, mate... If I'm authorised to use the lathe, I'm authorised to change the chuck jaws over from internal to external? If I'm not allowed to do that, then leave them as you found them, in external...  

Or grant me enough intelligence to do the right thing, to not force  a clogged up chuck, and to clean it to the best of my knowledge, to the point that it seems to works perfectly. And if that point still isn't perfect enough, educate me without prejudice, so I can do it better next time....

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[Tim Jacobs]

Hi Folks

Brass was probably me as I was giving an induction to Dan recently, he'd brought brass with him as practice material. At the time the vacuum was not working (totally clogged).

On the weekend I unclogged the vacuum hose, was completely blocked up with swarf, also cleaned the filter a bit, works much better now - I then put most of my effort into cleaning the milling machine which was what I was using, I probably should have gone over the lathe again.

As Dean says it's really not a good idea to use the air line to clean the machine, a brush and the vacuum is much safer. I probably should be more insistent about cleaning during the inductions, it hasn't really been an issue so far since most people who do the induction never come back again.

Tim

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[Dean Forbes (PERS)]

Matt with all due respect the boundaries are clear 

You are not a maintainer

There is no prejudice 

If you knowingly over step the boundaries you will have your access withdrawn after due process

the choice is yours

On Wednesday, 27 November 2019 19:59:51 UTC, Matt Rutter wrote: