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Skywalker

Skywalker

Active Member
Joined
Aug 24, 2013
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Greetings,

Just stumbled into this awesome forum.
Long time motorcycle builder and restorer...professional roller coaster mechanic....new lathe owner....and soon to be....

ADDICTED TO THIS FORUM, and building crazy little motors. LOL

Again...greeeeeeetings from St Louis.

Luke
 
Hi from England Luke

What lathe ?

and more importantly WHAT BIKES ?

Regards Mark
 
Skywalker said:
Atlas 109.21270...and BSA is the bike of choice!
;)
Click to expand...

Good kit mate, Atlas lathes live up to their name, they are built like tanks, simple but strong, they just get on with the job they were made for without fuss.

Mine's a Myford ML7, she's older than me, (and I'm getting on a bit) but can still produce some really good work, I call her Millie (the Myford)

BSAs , It's all good from Bantams through to Goldstars great bikes, (oil leaks and all)

Regards Mark
 
Here is my '65 BSA Lightning Rocket Clubman Café racer that is nearly finished...my next project is a pre-war inspired race machine with a 500cc single OHV motor.
I'm close to starting this one up. (Here I was waiting internal parts before closing up the timing side outer cover.)


http://www.flickr.com/photos/89103304@N07/9596747577/

I cant wait to get my Atlas set-up and turning out parts.
Upgrades to follow. ;)

-Luke
 
Hi Skywalker, that's a nice looking motorcycle (for a BSA).

A REAL motorcycle is a Triumph (of course)

Triumph.jpg
 
Hi All

Gorgeous bikes both of 'em, That exhaust looks a bit non standard Luke, is it a special ?

Grab as many B.S.F. and Whitworth taps and dies as you can you'll be praising the Atlas when you can't find that obscure bolt or something , just make one.

Regards Mark
 
skyline1 said:
Hi All

Gorgeous bikes both of 'em, That exhaust looks a bit non standard Luke, is it a special ?

Grab as many B.S.F. and Whitworth taps and dies as you can you'll be praising the Atlas when you can't find that obscure bolt or something , just make one.

Regards Mark
Click to expand...

Main reason I bought it. LOL Tired of waiting for hardware from the UK, and paying 6-7 bucks for a 5/16 bolt. Many fasteners on the extremities were converted to SAE, internals had to remain BSF or Whitworth. Also the pipe thread is different. B.S.P. pipe is non-tapered...as for fuel taps and such.

And,yes...the exhaust is a special two into one Siamese pipe. was standard on '66 Clubmans I believe, not '65 Lightnings. LOL

I hope I can get this Atlas up and turning properly. So far disappointed. Climbing the learning curve. ;)

-Luke
 
I see in the 109 thread you are struggling a bit. IIRC your first lathe.

here are some basic tips for turning.


1 ) minimum stick out on the tool and material.
2 1/2 d is rule of thumb so a piece of 1/4 inch material should not stick out of the chuck more than 5/8 inch .the same with the cutting bit. try to keep a 1/4 in bit about a 1/2 sticking out.

2) speeds and feed these are published or use an on line calculator.

3) cutting tools learn to grind a high speed steel cutting bit.
the The ideal changes for each material but you can grind a gp bit for most applications.

4) set your tool on center or slight lily below a high tool can dig in or cause chatter.

5) if you have not done so download a copy of army TC 9-524 and a Copy of the machinery handbook.

Tin
 
Just opened my machery's handbook. ;)
thanks for the input. Been following those basic ideas.
 
Triumph and BSA... Aren't those bikes for guys that really like fixing motorcycles? Kind of like Harleys, only British.

Been a Honda rider for years...
 
Sound advice Tin as always

If you're working on British stuff Luke a copy of Fowlers Mechanical Engineers Pocket Book Is a very good source of info.

Older lathes are a bit like British bikes, lots of little idiosyncrasies and the older they are the more quirks and foibles they've got. It is quite a steep curve when you first start but persevere and you'll soon get the feel of her. Steel is probably not the best material for first practice. Aluminium is much more forgiving and you tend to just write off the component rather than breaking tools or straining the machine. (you will write off a few when you're learning, I did and so has every other machinist although some don't like to admit it)

Regards Mark.
 
kf2qd said:
Triumph and BSA... Aren't those bikes for guys that really like fixing motorcycles? Kind of like Harleys, only British.

Been a Honda rider for years...
Click to expand...


<<<Had many Jap bikes as well. Honda and Yamaha came along and killed the English market in the early 70's. They were lighter,ran better, and didn't need constant attention with a wrench and oil can.
;) iconic beauty tho.
 
Thanks Skyline.

In comparison to motorcycles...many folks decide they want a classic English bike,
what they don't realize is, these machines are old and cantankerous and require more love than
a five year old Honda. (Replace a battery ever two years and ride the sox off of it.)
I'm thinking this venture may be the same. Im not experienced in old lathes (or new ones, for that matter)
and I expect to throw a switch and cut this amazing sculpture from 304SS. LOL
I will keep marching forward.
;)
 
kf2qd said:
Triumph and BSA... Aren't those bikes for guys that really like fixing motorcycles? Kind of like Harleys, only British.

Been a Honda rider for years...
Click to expand...

I have a Honda as well but it's also a classic (1972 CB350).

Skywalker: If you need parts for the BSA, try British Spares in NZ: http://www.britishspares.com/
I have purchased lots of stuff from them over the years and always had good service.

Jim
 
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