i'll soon be making swarf

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AdeV:

--- Quote from: andyf on February 25, 2011, 05:46:21 AM ---
Ooo er - so it does, Ade! I see that the lathe is in your neck of the woods, too.

--- End quote ---

Heh, so it is, I hadn't spotted that...

saw:
I have the exacley same lathe. :dremel:

Gazz292:
well, i'm now the owner of a lathe,

bit of a fun drive over, nottingham to the wirral, tomtom wanted to take me all motorways, going south, then west, bit more south, west, north, west and probably a bit of east thrown in for good measure,

i went directly north west-ish, matlock, buxton, over the cat and fiddle run to macclesfield and so on, took 10 minutes longer than the motorway route, and 25 miles less, and much nicer scenery.

lathe does look very lightly used, the bloke said he used it to make a few parts for models out of alli, then threw back a dust sheet to show me the models, i was expecting a steam engine, maybe a rocket, aeroplane or something like that,
wasnt expecting to come face to face with a life size dalek :bugeye:
he'd made 2 of em, and used the lathe to make the fancy bits on the ray gun and plunger arm thingy,

it fitted in the boot of the smart easily, along with the other bits, then the 2 and a half hour drive home, going thru rushhour, got off the motorway just as it started to get busy, then hardly saw any traffic again, pretty quiet in the hills,
got a stabbing pain in my abdomen so had to stop a few times due to the pain, stupid me forgot to take some pills with me, so i had to put up with it, but got home just before 7, layed on the bed just for a minute, and woke up 5 hours later,

Now to read up on the lathe, i think it's imperial... dosent seem to be a choice of metric or imperial according to the ebay ads, the change gears mention TPI's, which is imperial i believe, i'm a metric man, so will see what i can do about it... i have read the lead screw is metric, but something else is imperial, but i'll figure it out later.

Going to go on a shopping trip to arc sometime, got theire catalouge thru the post today, so much easier to find things i never knew i wanted in a catalouge, online you have to know what your after and look it up on the shop site,
the book i want to get from arc, the one on the mini lathes, is out of stock apparantly, typical, but there's plenty more i want,

then i'll have to find a firendly metal supplier in my area, or more idealy a workshop that makes big things from lumps of metal, and has a scrap bin full of off cuts that are just right for a mini lathe.

andyf:
Next time, try the A50 to Newcastle under Lyme, and then the M6 and M56.

Daleks? Oh well, each to his own, I suppose.

The leadscrew will either be 16 TPI or 1.5mm pitch. Put a rule marked in 16ths alongside, and see if the marks coincide exactly with the threads over 2 or 3 inches. If it's 16 TPI and you want metric, contact Amadeal for a new leadscrew and half-nuts to match it. Machine Mart do a conversion kit for their CL300M (rebranded Sieg C3), but I think it may be too short. Little Machine Shop in California (nice people to deal with) do one for a 14" Seig: http://littlemachineshop.com/products/product_view.php?ProductID=2026&category= which will possibly fit a Real Bull, but it won't have an endfloat adjuster nut on the tailstock end.

The feedscrews will be metric even if the dials on the topslide, topslide and tailstock are marked in imperial. The approximation that 0.040" = 1mm will be used on the dials, so if you want them metric, get or make new dials and they will then read accurately.

For general help and advice, join the Yahoo 7x12 Minilathe Group. Though I don't have a Seig or Real Bull myself, I'm one of its moderators for some reason :scratch: , so I'll let you in :thumbup: . The 7x10 Group is perhaps best avoided; there's a lot of off-topic political ranting on it.

Andy

Gazz292:
i finaly got the lathe out of the boot of the car, and have had a good look at it,

it is metric after all, the charts giving the required change gears for metric thread widths, and which gear to use in the threading indicator, tho i cant seem to see anything on the gears to indicate which they are, have to count the teeth i guess :)

i had a bit of a play just running the lathe, it's in the living room floor atm, bloke i bought it off says he never used the leadscrew under power, tho the tumbler gear was always engaged, he never locked the half nuts down, and the gears were set up to give an ectremely slow feed, using a couple of steel gears that have about 20 teeth, which are not mentioned on the screw cutting gear guide,

i was messing about and set the change gears up to give the fastest leadscrew feed, and promptly stripped one of the tumble reverse gears teeth, seems theres a bit too much friction in the leadscrew, plus i didnt set the backlash on the gears with a piece of paper (should have learnt that from my 1/6th scale buggy, i've had to do it so many times) so they were prolly running tight,
ahh well, i was planning on going to arc to get a dti and a few other little bits, i'll see if he does some steel tumbler gears, i would like to run all steel gears eventually, but that'll be when i change the headstock bearings to taper rollers, and can change the main gears to steel as well,

The cross slide has tons of backlash, not just some that you can feel, but i a blind man could see the backlash, but i plan to strip it down and re-build it, and set it all up nicely,

i would love to modify the gib strips like how bogs showed with darrens lathe, but i dont have any way to doing that with the tools i have, or the machining knowlage to do so, so i'll have to make the best i can, maybe get some of the bras gibstrips arc sell or something.

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