Useful information for newbies and seasoned hands.

[Nick_GParticipant @nick_g]

[Nick_GParticipant @nick_g]

.

Found this the other day while I was searching for something else.

It's from Tony's well known lathes website but I think it's a source of good information for those new to and those more seasoned.

**LINK**

Nick

[JAParticipant @ja]

One comment, although I am sure most already know this – While Loctite products only have a stated shelf life of one year from dispatch do not store them, other than Cyanoacrylate products (Super glue), in a fridge. They should be stored between 8 and 21C.

**LINK**

Otherwise a very good reminder and a lot of useful information.

JA

Edited By JA on 07/05/2016 11:40:41

[NJHParticipant @njh]

Thanks Nick – I think I am probably past "seasoned" ( lets just say "matured" ! ) but, despite frequent visits to Tony's site, I'd not come across those pages before. I think they deserve a bookmark of their own – so I've added one!

Norman

P.S. I see that he says that " hair should be tied up" – I wish that I needed ( or, indeed, was able) to comply with this!

Edited By NJH on 07/05/2016 12:29:12

[Neil WyattModerator @neilwyatt]

Posted by NJH on 07/05/2016 12:15:57:

P.S. I see that he says that " hair should be tied up" – I wish that I needed ( or, indeed, was able) to comply with this!

Modern corollary to that: Don't wear a hoody at the lathe… I did once then noticed the drawstrings dangling right by the chuck :-0

Neil

[David ColwillParticipant @davidcolwill19261]

Never, ever, leave a chuck key in a chuck.

David.

[steveteeParticipant @stevetee]

In the apprentice training school, on our first day on the machines, our instructor said " Lads, these machines are designed to cut metal, they cut meat even better". That has stayed with me.

[John RuddParticipant @johnrudd16576]

In my apprentice training school, the first week we all (200 of us…) had to line up in our respective groups and hang our heads forward….if your hair hung down it was too long…..we were given until the end of the week to have it cut to meet the standard or we'd be shown the door…..

To reinforce the danger, we were shown photos of horriffic injuries sustained when hair/ clothing got caught, there was even one showing part of a lad's scalp…….l

[Philip RoweParticipant @philiprowe13116]

The mantra of not leaving a chuck key in the chuck was so firmly ingrained into me when I was an apprentice (55+ years ago) that I feel guilty if I don't take it out even when just changing to a different drill size. Better safe than sorry, after all we only have one life/body.

[dave george 1Participant @davegeorge1]

One of the apprentices left chuck key on one of the lathes,the foreman rolloxed him good style,then the apprentice had a punishiment for a week. He was given a hacksaw,a handfull of havksaw blades and a scrap 2″ round stainless steel bar, and got told to cut the bar into 1″ bits. I dont know if he completed it but i reckon he wont be leaving chuck key in again

[Mark KilgoreParticipant @markkilgore24274]

At the USAF Machinist's Training Course, Chanute AFB, IL, in 1969, the school had a standard way of dealing with chuck keys left in place. There was a huge chuck key welded onto a heavy chain necklace. The offender got to wear the jewelry for the day. Not at the machines, of course.

[Geoff TheasbyParticipant @geofftheasby]

Visiting a working museum once, I spied a chuck key left in a chuck. Not only might it have injured a staff member, but also a visitor…

Geoff

[nigel jones 5Participant @nigeljones5]

I too am time served so would never leave a key in chuck when i was at work, but I make a point of doing so in my own workshop as it prompts me to never just start the machine without giving the whole set up a check over – I dont advocate this but it works for me – and no one else is allowed in there!

[Tony Pratt 1Participant @tonypratt1]

Posted by fizzy on 07/05/2016 17:35:57:

I too am time served so would never leave a key in chuck when i was at work, but I make a point of doing so in my own workshop as it prompts me to never just start the machine without giving the whole set up a check over – I dont advocate this but it works for me – and no one else is allowed in there!

Tony

[NJHParticipant @njh]

Very strange approach fizzy – so you set yourself a "trap" to remind you to be safe………

Would it not work just as well to make a big notice saying "CHECK SETUP" and hang it on the machine?

Norman

[Neil WyattModerator @neilwyatt]

Sounds like the 'spike in the middle of the steering wheel to make you wear your seatbelt' idea to me

[Danny HeghParticipant @dannyhegh44921]

good thing about micro switched chuck guards it makes it a little more difficult , I have heard of someone having their overalls unzipped by a small dia bar sticking too far out of the chuck and bending when the lathe was started !

Finally Dave it seems like a waste of stainless unless you wanted 1 " discs should got him to cut up old bricks!

[Martin ConnellyParticipant @martinconnelly55370]

Had a prompt from YouTube today for this short video on on ER collets.

ER collets for beginners

Martin C

[Martin King 2Participant @martinking2]

Hi All,

When trying the above link I get a page in Arabic or some other weird language?

Martin

[JasonBModerator @jasonb]

Worked for me but not very helpful to anyone on several of the items

1. Bearing nut does not increase holding force, it reduces tightening force required to get the collet to hold correctly that is why there are two tightening torques given on most published tables – one for plain nuts the other for bearing nuts. If both tightened with the same force then the bearing one will grip more.

2. He is measuring the wrong part of the collet so they will be oversize

3. On smaller dia collets tool does not need to be inserted to full length of collet, just to full depth of the part that grips the tool

4. OK

5 OK

Edited By JasonB on 14/06/2020 13:34:16

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