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 Unimat SL1000 1970 lathe restoration.

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Roadrunner
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PostSubject: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyWed Oct 02, 2019 5:47 pm

So guys I’m after a new lathe for my workshop..

Problem is there are so many cheap Chinese ones out there sporting crap plastic gears or under powered belt drives or just piss poor quality, I’m struggling to find one that will five years or carefree use...

So I’m looking for suggestions and links, so if any of you have a small mini lathe or know of good ones let me know! 

RR

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyThu Oct 03, 2019 4:55 pm

Hi Mate, how much do you want to spend??

I have had one of these for about 6 years now & I haven't managed to break it yet!!! 

https://shop.chesterhobbystore.com/collections/lathes/products/conquest-super-lathe

Mark..
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyThu Oct 03, 2019 5:06 pm

Between £500/700 not including tooling and tail stock extras, that looks like one I looked at but didn’t state of the change gears are plastic like so many cheap ones... ??

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyThu Oct 03, 2019 7:00 pm

why do you want a mini lathe, Aron, as it isn't much smaller than my Myford ML10, and that is bigger than a Myford ML 7, and you don't get plastic gears in those. 

I've had my myford for 25 years and it was second hand then...………..it doesn't have a milling attachment like the mini lathes but I've never needed one for modelling anyway.
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyThu Oct 03, 2019 10:50 pm

NI’m going to start making a slide valve and isolating steam engine shortly so that’s the main reason for the lathe also I have quite a few projects that require fittings that I can’t buy easily but I know I can make them specifically for the boats.. sadly I do t have room for a Myford even 2nd hand so it has to be a minature one but capable of doing the job I need, as for a milling machine attachment that’s a bit far for now most of the things I need are just turned but option for a mill would be handily later on

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyThu Oct 03, 2019 11:19 pm

thought it might be space matey...………. the good thing about the modern mini lathes ism that you can usually add a mill attachment later...…….can't do that with a myford as they are separate units that stand alone.
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyThu Oct 03, 2019 11:47 pm

Saw a fully restored myford on eBay today £3k lol looks stunning 
 
Just a shame I’ve not got the space or I might have sold one of the kids for it lol!


https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F223686209040

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 04, 2019 5:44 am

Aron mine is a Taig, Peatol in the UK.  https://www.youtube.com/watch?v=K_gN13LaoPU
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 04, 2019 9:29 am

I’ll have a search for that one in a moment Damien, 

Here’s what I’ve been looking at....

Two options, one being plastic gears but the machine looks very well made...

https://www.axminster.co.uk/axminster-model-engineer-series-c1-micro-lathe-505101

The other has lesser features but is belt driven with only a tensioner to change speeds...

https://www.axminster.co.uk/proxxon-fd150e-lathe-splash-guard-6-pce-cutting-set-package-deal-717739


To be fair I’ve been leaning to the first one linked, even with the plastic gears as I can prob get metal gears as an upgrade but that said I need to spend another £30 on the threading gear set too along with a Chuck head stock, etc etc....

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 04, 2019 10:53 am

The Taig/Peatol comes as a kit.

 http://taig.com.au/webstore/index.php?main_page=product_info&cPath=7&products_id=7&zenid=815a04afa7c20ad62402b330152fd5a1

the $499 AUD converts to 273.30 quid a sewing machine motor works ok for smaller jobs I converted mine with a 24v motor from a mobility scooter.
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 04, 2019 10:57 am

Link for Peatol UK.

http://www.jeffree.co.uk/Peatol/lathe.html
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 04, 2019 1:30 pm

I looked at that, not my cup of tea to be honest it’s lacking some key components and functions it’s also smaller than I was looking for, also other issues is to mount it and a motor ( I really don’t want another diy project I want out of the box and works), tool lock is also on the back.... I’m not leaning over a lathe again....

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptySat Oct 05, 2019 10:30 am

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptySat Oct 05, 2019 3:49 pm

I bought one of the early peatol lathes for our school for kids to get used to before progressing on to the boxfords we had...……...the peatol was just so basic it was crap...……..easier to put the kids on to the big boys toys to begin with.
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptySun Oct 06, 2019 5:02 pm

I’m currently bidding on an old unimat SL trying to decide its value now as its hitting new lathe territory lol guess we’ll see who snipers me at the end £350 or £400..... dum dum dum...

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptySun Oct 06, 2019 8:05 pm

Lathe issue resolved, managed to win a decent condition unimat SL + extras on eBay for £400, should do the job nicely for what I need already sorted replacement spindle head bearing set in case those are knackered... hopefully it arrives as described... I expect a rebuild log might show up on the forum when it arrives to clean up the machine...

But not a bad price for a solid machine... fingers crossed! 


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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyTue Oct 08, 2019 8:54 am

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyTue Oct 08, 2019 2:56 pm

LOOKS a nice solid bit o' kit there Aron...……….hope you are pleased with it when you get it all set up.
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyTue Oct 08, 2019 8:56 pm

Lathe arrived today next day delivery, all works flawlessly no give in the bearings, apart from some surface rust/blemishing a bit of pitting in the rails where the slide doesn’t run but and flaky paint works fine, tested on brass bronze and steel. I’ll run it for a while as is, and come next year I’ll strip it down and repaint it, and give it a good restoration...

It dose need some new belts but that was expected...

I was pleased to see even in this state the motor has barely been used.... a very good sign sing the brushes are still over just over half inch long! All in all a good machine, guess the old sayings true, old machines still run better than the latest gadget!

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyWed Oct 09, 2019 9:10 am

these are the best mini lathes going. I bought mine 10 years ago and the motor is still going strong. keep it well oiled and and it will live you out lol. Laughing

david

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 11, 2019 10:29 am

It’s running fine... the run off is also minimal. I do have to pick up a new set of tools for cutting the ones came with do not center up anymore simply because they have been sharpen to much ( probably with a grinder not a sharpening stone) I also cleaned up the head stock and removed the rust it’s now new and shiny! Along with a light buffing on the rails, basically I stripped it cleaned the funk off and put it back together... works great...

The only flaw I’ve found is the original on off switch... it’s tripped The power twice in the house when I go to turn it on, so I’ll have to replace that, but better the machine needs mounting on a base board long term I’ll factor this in...

Probably and nvr switch or a standard fused switch would work... I’m not a fan of the Chinese safely switches, guess we’ll see...

I’m also looking for the auto feed system as and extra for the tool ( helps with threading) so if anyone has that upgrade laying about send it my way! Only one I found on eBay so far costs £300 and it’s just not with it for a threaded bar and two mounting points!

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 11, 2019 10:31 am

David is yours the dB? I’m interested in your head stock chuck... ( I also need to find a 4 jaw)... but because the unimat sl is a screwed on plate and not threaded to the spindle it’s hard to find an off the shelf one...

Where did u get it?

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 11, 2019 4:41 pm

the stock chuck came with it but i had to get new chuck for drill bits. this I got from USA I will try and find the web site when I next go into my garage, having health problems at the moment sorry. but they did sell a lot of spares.


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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 11, 2019 5:45 pm

hi arron,

just been looking in my files and found the place I used for drill chuck. its called,

blueridgemachinery& tools. USA, the drill chuck cost me $60 dollers US. they sell used and new parts they gave me excellent service.
also 
sherline,com have not used them but recommended  by some one. they have chucks to suit the 12mm x 1 thread.

i have got the 12mm x 1mm  tap in the 3 sizes start to finish, if you are thinking of making a face plate etc.

while going through my files I found i bought mine in 2007  (shut your eyes) for £99.00 so if that is the going price you paid then i have made a nice profit. 

also forgot i have the operating instructions for the unimat  3rd edition if you want a scan of it let me no. 

david
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Oct 11, 2019 9:47 pm

Thanks for the info something to look into, I need a few extras so that will come in handy, the lathe came with a face plate so I’m golden there, it also came with ty e original manual in very good condition, so a scan is not needed, I think the 3rd edition differs ina. Few areas to the SL 1000...

Anyway thanks for the info Thumbup

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyWed Oct 30, 2019 8:52 pm

Made a significant upgrade to the lathe today.

For some odd reason the lathe would randomly trip the mains in the house just as I was flicking it on.... needless to say that the switch was at fault since it trips occurred the moment I touched the switch....

After some hunting about I purchased a 2 phase NVR on off switch from Axminster tools, this is a major upgrade in comparison to the old and very scare on off switch that came with the machine...

Anyway fitted this evening and works beautifully.

I opted to not buy one with a “e stop” it’s simply pointless as the machine would still need to spin down regardless of I hammered the off button or a e button, and to be honest all the machine in the shop accept the table saw don’t have an e stop anyway so it was kind of a redundant feature to add... also since this is a belt driven machine if your brave enough just grab the jaws it will stop fast enough 😂 just kidding DONT DO THAT KIDS! 

Anyway old scary switch..... 

Unimat SL1000 1970 lathe restoration. 637dac10

New might save my life NVR switch.
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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyThu Oct 31, 2019 1:54 am

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyFri Jan 03, 2020 3:50 pm

I’ve updated the lathe with some new parts that were originally missing, mainly a new live center!

It’s quite hard to find anything with a 12x1 thread but I got lucky on eBay with the brand new live center..

I’ve also updated and brought new belts and lastly spend £30 on some brand new hss 1/4 cutting tools... the ones that came with were ok but require a serious amount of restoration and reshaping and sharpening to put right, and given I was missing the cut off tool figured a new set was the way to go.

I’ll update this post as I progress on upgrades and it’s restoration as I get there, on a side note dose anyone have a m12x1 Tap and dia in there tool boxes? Happy to buy them if you do, be surprised how hard it is to find those anywhere and it will let me make up parts to convert a m14 threaded collet to fit the 12/1 thread! ( then I don’t have to cough up £200 of the original set!

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptySat Jan 04, 2020 1:48 am

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyWed Jan 08, 2020 7:28 pm

Toolpost for three jaw chuck.

https://www.toolpost.co.uk/woodturning/workholding-chucks-faceplates-etc/micro-chucks

They do a four jaw scroll chuck but I find one with individual jaws more useful?

Hobby's  and Hobbies
https://hobby.uk.com/four-jaw-chuck.html
https://www.alwayshobbies.com/tools/power-tools/unimat-4-jaw-chuck-162050

Do a four jaw chuck - Unimat 1 so not sure if it is plastic or metal?

Chronus
https://www.chronos.ltd.uk/product-category/taps-dies-boxed-sets-threading-accessories/taps-dies/carbon-taps-dies/metric-fine-carbon-taps-dies/

M12x1 Carbon steel taps and die

They do hss taps but cost a lot more and I find Carbon steel adequate for occasional use?

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyWed Jan 08, 2020 7:50 pm

Thanks for the links very handy! I was after a 4 jaw chuck, but was going to convert a modern M14 version to fit but great job for those saves me hours of searching!

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyWed Jan 15, 2020 3:06 pm

Dose anyone here have the ability to make me a 62mm back plate for my lathe?

I can’t do it myself as my max cutting depth is 60mm and that’s pushing it...

I need a new back plate to fit a ER16/25 collet chuck to, my only options without a new back plate built to buy a 14x1 to 12x1 adapter then fit a 14x1 threaded back plate, which in total chews up a full 2” of cutting space on the lathe as well as being very untidy and a lot resting on that adapters thread!

So if anyone is able to make me a new back plate here’s what I need...

62mm dia with a central 12x1 internal thread for the headstock spindle..

See photo for depth of cut, I don’t need holes for the collet drilled and tapped as I can do those on the drill press, I’m also not sure what size I need them at also...

But if anyone with some time and a larger lathe can make me up 1 or 2 backplates with theb12x1 thread I’m looking for I’ll be happy to pay for your time and effort... get in touch please!!!

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PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyTue Jan 21, 2020 2:11 pm

I’ve been getting some odd chatter on the lathe recently and after eliminating a tooling issue since I have a brand new razor sharp set, And checking the backlash on the slide ( which is very minimal for a lathe this age, it can only mean one of a couple of things... user error ... unlikely now I’ve resolved the speed issues with a motor clean and new belts, or the bearings in the spindle.

Now at first glance and spinning it by hand the spindle Moves freely and no play with a good firm lateral shake, but the bearings do sound worn, originally when I first received the lathe I gave the whole thing a good shot of wd40 to loose up the moving parts then went on to oil them, the bearings however have housings within the spindle head which I couldn’t get into and at the time I also couldn’t remove the chuck nor the pilot wheel that drive it, so I just dosed it in oil and hoped some would seep in, that seamed to work for a while and the sound reduced from the spindle but the sound has gradually increased and I’m also hearing some odd like crunching sounds when the motor winds down, leading me to believe I have a bearing issue...

So today I’ve stripped out the spindle head to remove the bearings, and the bearings look “ok” as In Terms not bad for 40 years old, but there was a lot of grime surrounding the bearings and balls this indeed looks the case of some worn bearings, how badly it’s hard to say but it’s clear the bearings have run dry for long periods and the dirt is black and thick and almost solid in places.

So fortunately I’ve managed to locates some replacement original bearings brand new for this lathe and they also come with new thrust washers, although the ones I have fitted look fine and still retain their shape for absorbing thrust, so while those are on their way I’ve started to clean up the spindle head, remove the rusty spots and just generally make it tidy, I won’t go as far to remove every mark on the head as the motor and pully brace clamp back on over some of the more marked areas but I’ve got it to a reasonable looking polish making it no longer look 40 years old, all I have now is to wait for the new bearings to arrive before I reassemble.

I think this marks the start of my lathe refurbishment.... it’s now pointless to just fix bits as I go when I may as well restore the thing now and be done, the motor itself I will have to source a refurbishment establishment to take care of the motor
As when I did open it to clean the carbon it’s still very black in places and I’m not electrical engineer so out sourcing it to be rewound, cleaned and have a new cable installed that’s more than 8” will have to be done...

But for now here’s the efforts of my clean on the spindle...

Unimat SL1000 1970 lathe restoration. C6f2ac10
Unimat SL1000 1970 lathe restoration. 4976dd10
Unimat SL1000 1970 lathe restoration. 32bd9610

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Unimat SL1000 1970 lathe restoration. Empty
PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyWed Jan 22, 2020 3:13 pm

Today I’ve started the strip the paint from the lathe, I’ve removed all the components to its base parts, all aluminium castings and stripped the paint from the head stock, slide and tail stock, the base was also give a strip but the process didn’t work as well so I’ll have to manually sand the paint of in the worse places, give the lathes age and it’s cast aluminium I opted for a older method of paint removal which was to boil the parts in bi carb, I don’t think a chemical stripper would have got the paint off without some damage to the castings, having not used a stripper before other than heat removal this was the lesser of evils, and given the head stock has a bored shaft hole and surfaced mount I wanted to avoid damage to these areas, for the most part the paint come up fine Iva had some oxidisation which I removed as much as I could with white vinegar, the remaining low dark spots are the casting itself, I’ll do my best to bring most to a good shiny finish, them primer with etch befit top coat, sadly with the castings far from perfect polishing them would be a waste so keeping somewhat faithful it will be a paint finish.

The motor I will have to chemically strip as I can submerge it also the motor casing is steel so I don’t want to introduce rust to the motor, I will do the motor last after the lathe is together again, I may just chest and give it a good sand prim and paint with out stripping it, not for lack of effort but more for I still want the motor refurbished later and not everyone can ensure a perfect paint job returned for doing that job, either way it will take me a few days to get these parts sanded and shiny ready for painting.

Unimat SL1000 1970 lathe restoration. 43614410
Unimat SL1000 1970 lathe restoration. 9b711c10
Unimat SL1000 1970 lathe restoration. 5f267f10

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Unimat SL1000 1970 lathe restoration. Empty
PostSubject: Re: Unimat SL1000 1970 lathe restoration.   Unimat SL1000 1970 lathe restoration. EmptyYesterday at 3:45 pm

Well after a good morning of wire brushing, 180,400,600,1000,1500,2000 sanding the base it now all done and the machine just needs a final check and prep for undercoating, I’ve even removed the name plate and drilled and tapped holes for the original plate to screw on and off, the motor however I will just give that a scrub with the wire brush, and a quick sand with some 180 grit to remove any loose paint, and flatten what’s there and prim that with etch and filler primer before top coating. Now all that remains is to clean up the other parts, screws, drill chuck, 3jaw and the screws and threaded rods and handles.

The handles them self’s I will need to get some aluminium clean and polish as I don’t have any and I don’t think brasso will do the job?

Anyway needless to say it’s starting to look like a new machine and honestly isn’t that many parts to strip and clean, I guess since it’s a mini lathe it’s expected to be simple.. any suggestions on a paint colour?

Unimat SL1000 1970 lathe restoration. 054b7010

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