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A Lathe Machinists Journey
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Jon Cameron


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Joined: 25 Aug 2015
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Location: Darlington

PostPosted: Wed May 10, 2017 9:25 pm    Post subject: A Lathe Machinists Journey Reply with quote

As you will know if you read my other thread, I am now the proud owner of a Myford ML4 lathe  Thumbs up!  Thumbs up!

http://m.ebay.co.uk/itm/Myford-M4.../152527283962?nav=WATCHING_ACTIVE

I did really well, ie I was lucky!! I set off this morning at 6am, later than I hoped, and due to some unfortunate incident at spaghetti junction, traffic was a nightmare around Birmingham. So eventually arrived at the gentleman's house collected inspected and he even ticked off every thing on the copy of the eBay advert he printed. I loaded up and spent about an hour at his place, discussing the lathe and machining on it. He reworks motors, so the motor had just been serviced two weeks ago apparently

The round journey along with a two hour pitstop with legend Stilldrillin David, which I'll come onto in a little while, after ive had some food, was a total of 643miles, which was done in three blocks, one down there a total of 313miles, one to Davids, which was 245miles and the remainder home, I now have sat on the kitchen table a big lump of cast iron and twirly bits, which I need to get set up in the shed, (after its been cleared out. I don't want to twirl anything now because coming inside the metal is warming up, and the GiB adjusters have gone almost solid, due to expansion. So I've put it in a folded down state ready to install very soon in its final location. More to come but quite pleased with it
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Stilldrillin


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Joined: 06 Feb 2007
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Location: Staveley, Derbyshire. UK

PostPosted: Wed May 10, 2017 9:31 pm    Post subject: Reply with quote

It was nice to see, and talk to you, Jon. Along with your new acquisition.

That was quite a road trip!  
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David...... "Good `ere, innit!"  

Life happens, when you connect with people.
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Jon Cameron


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Joined: 25 Aug 2015
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PostPosted: Wed May 10, 2017 9:50 pm    Post subject: Reply with quote

The pleasure was mine David  

He's such a gent, he even gave me a few essentials to help in setting up and practicing Including a Jar of WD40, (a jar not a spray bottle), slider oil, and cutting oil, along with a patented applicator of Davids ie a big nail  and some rust as he described it , along with a couple of centre drills, also David if you could post the link for the spotting drill in this thread please

Just need to get it set up now  
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Stilldrillin


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PostPosted: Wed May 10, 2017 10:07 pm    Post subject: Reply with quote

Jon Cameron wrote:
 
also David if you could post the link for the spotting drill in this thread please



These are the ones, I use...... http://www.ebay.co.uk/itm/3mm-HSS...item3f4a8b0bc6:g:THIAAOxyrx5TjwAq
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Ironhorse57


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PostPosted: Wed May 10, 2017 10:08 pm    Post subject: Reply with quote

Glad you managed it home safely Jon, you need to get it off the table though before breakfast time .
David is indeed a gent, he kindly sent me some very useful bits when I got my little machine.  Didn't know WD40 came in anything other than a spray though, must look further into that sometime.

Dave
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Stilldrillin


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PostPosted: Wed May 10, 2017 10:17 pm    Post subject: Reply with quote

Here yer go, Dave...... http://www.ebay.co.uk/itm/WD40-AP...item4888cf4871:g:3GQAAOSwmfhX4rw2
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Jon Cameron


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PostPosted: Wed May 10, 2017 10:32 pm    Post subject: Reply with quote

Its worth that just for the WD40 light and bolt/part retrieval tool
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Ironhorse57


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PostPosted: Wed May 10, 2017 10:41 pm    Post subject: Reply with quote

Thanks David

Dave
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kevin


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PostPosted: Wed May 10, 2017 10:42 pm    Post subject: Reply with quote

good luck and just ask if you need a pointer
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Jon Cameron


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PostPosted: Wed May 10, 2017 10:58 pm    Post subject: Reply with quote

Well I plan to make a pointer, for scribing with   however I think what the guy said about the halfnuts been worn might be true,I've tried engaging them tonight, spinning the headstock, and the saddle sits still, even though the feedscrew is turning. Any advice on stripping the saddle off the lathe to replace the half nuts, and how they are made, or where they are bought??  
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ozsteamdemon


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PostPosted: Thu May 11, 2017 3:18 am    Post subject: Reply with quote

"A Lathe Machinists Journey"

A great title for the marathon of your learning curve there Jon.

An epic that promises to be bigger than Ben Hur , so looking forward to the next 3 or 400 pages with baited breath and anticipation.  

So much so , i`ll bet before long you will have revolutionised the toy steam industry as we know it, and i for one will be able to say, i knew him when he was just a mucker.  
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flywheel61


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PostPosted: Thu May 11, 2017 5:28 am    Post subject: Reply with quote

Good luck with the lathe John - I too, took the journey several years ago, having failed miserably at manual arts, at high school. I have learned so much from my Forum friends, on here (like Ozsteamdemon), the book you mention, and many other helpful people.

As has been said many times, on here, and elsewhere, it's not the cost of the lathe, but the tooling you have to watch - it's very easy to fall into the trap of, just one more piece of tooling, rather than using a little ingenuity which can work wonders.

If you get to the stage of using a knurling tool, I would suggest one. like this rather than one that pushes from the side, as the latter can cause issue with the bearings over time,

http://www.ebay.com.au/itm/111899...amp;ssPageName=STRK%3AMEBIDX%3AIT

Style not to buy,

http://www.ebay.com.au/itm/Knurli...20003ff:m:muJqCSbB-AAyqx-mIvRBY8Q

I find working with my lathe very satisfying, especially reproducing parts to get, an otherwise non-working engine, back to life

Cheers    

Chris
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MrMamod


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PostPosted: Thu May 11, 2017 8:54 am    Post subject: Reply with quote

Glad your trip went well Jon and it turned out a even better trip with a visit to a legend being young David  
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Jon Cameron


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PostPosted: Thu May 11, 2017 2:58 pm    Post subject: Reply with quote

Thanks all, I've been tinkering with the lathe today, on the kitchen table, I've got my head around it all now I think and which lever does what, for instance.

1. The back gears wouldn't engage and they were very stiff to operate the lever, looked closer, and found that there was a bolt on top which wasn't related to the headstock bearing, I thought it was so didn't want to upset the bearings. Quick spanner and the back gears engage.

2. The slides were very very stiff, so I backed off the gib adjuster and crosslide from its mount, and also took it off its mounting, cleaned and oiled the thread and sliders, and put that back on, along with the same for the crosslide, and I tightened the GiB adjusters to allow its full travel, without binding, these will have to be readjusted in the shed, (cooler).

3. I couldn't get the half nuts to engage the leads crew, gave a squirt of WD40 and brushed some of the crud off there. Put some oil on the leads screw, and by turning the chuck by hand, got the half nuts to engage and move the saddle. Which leads onto no4.

4. While messing with the above, I heard a grinding sound from the gears, when I looked there was a gap between the two gears near the top of the change gears, so just the edges of the teeth were engaging, creating a horrible noise. Back to the spanner, slackened off the gear adjustor from the back of the bracket and moved it tight up against it, I then fed paper through the gears to leave a small clearance. Tightened it all back up and jobs a good one

5. When I was looking at the lathe, and the motor on the table I thought to myself, that's a really wide set up, it'll take away a lot of bench space, so I moved the motor nearer and thought I'll look for a shorter belt, then I just happened to push it backwards to pick something that was trapped under it. Eureka moment, build a pivot table for the motor mount to rest on, it will decrease the profile free up space on the bench and to boot it'll be a belt tentioner, this will be built into the bench I'm making for the lathe, and will simply be a 18mm ply double laminated, with a 16mm threaded bar, as its pivot, and two adjusting screws, basically a bolt turned upside down and a but either side of the plywood. It should give reasonable amount of adjustment to belt tension as well as holding the motor firm
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Jon Cameron


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PostPosted: Thu May 11, 2017 3:04 pm    Post subject: Reply with quote

Forgot to say there's a number stamped into the bed, anyone know if this is a serial number or model number "LH176"
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