Wood Lathe

Have you tried the Book of Kings?
Norm

Could you expand on that a little please?

I hardly thought that further explanation would be required!
Dan Brown come back all is forgiven!

Norm

Bob,
        I got to Seventeen and a half cubitts- and their diameter was
Four.
HA had moved on to brass!

Prof Thom would have probably suggested actual measurements using the
planet Venus.

There you are, Michael!
All the clever stuff.

Norm

Of course,our dear Michael could actually buy a woodturning lathe. In
an earlier posting about Clarke and Chronos, Chronos is selling new
lathes for what cannot be more than a couple of tanks of petrol.

Do you think that we should tell him- or keep it secret? Or say,  in
the Book of Chron(os)icles!!

N

Norm, I need a lathe that can turn a 4.5m x 0.6m piece of wood. If you can
find one of those that is 'cost effective' for a one off project then please
let me know.....

Michael

Michael wrote:


How much is 'cost effective'? And how much does the bit of wood weigh?


--
Wally
www.wally.myby.co.uk
http://iott.melodolic.com

So, Michael, Science has discovered the--- Log!

Now if you had followed the reference to Hiram Abiff, the stuff was a
bloody sight
more solid and cast brass- and hollow and adorned with " network, lily
work and pomegranets" and a bloody big ball on each.
This was - I assume 4000 years ago and I just missed it by a tad.

Now in this day and age, all you need is two pointed ends of steel. to
support the log- and a long solid baulk of timber as a spacer.
With a matey or two, you mount the ends in grease and get stuck in with
a long chisel on a rest. Some comic wraps an endless rope around it and
drives it with a bike wheel.

All you are doing is is emulating what the old ship wrights did in the
past.
If you have read your history- and clearly you haven't- you will find
that ornamental turning lathes were constructed with two stocks- a head
and a tail in precisely that way. Again, if you have read George
Stephenson, Rocket's cylinders were so badly bored that the foreman's
felt hat had to be stuffed in.

The two most difficult parts in the job are to get someone daft enough
to bugger about with a bloody big log and the frictional inertia caused
by the inability to get back to the fundamentals of mechanics.

OK, go into Google and look up Bodgers Lathes. I don't have to, I
understood the principles before 1933!

Norm

Cost effective, is as little money as possible (under £400 ideally), I've
already got a whole workshop and so thought it would be easier to fabricate
something then go out and buy it. As I said before, I'll only need it for a
one project.....

No idea on the wood yet, thought I'd organise the lathe side of things
first. I guess you could get a rough idea if I was to tell you 4.5m x 0.6m,
made of, probably pine.....

Michael

So you've got a lathe! And I have been looking East for a miracle- and
missed it.
So what's stopping you? use the wrong end of the headstock- as the
headstock and whip the tailstock the arse way around using the lathe
back to front. It's only 60 or 2 feet in diameter- give or take a
midge's foreskin.

Wander around a cathedral- Good for the soul- and ponder just how the
masons made the pillars.
And young Michael, we are back to the Book of Kings.

Norman

Well I have 2 actually! BUT,  I'm still at school and the lathes are bolted
to the floor right next to other machinery etc so what you said just
wouldn't be an option.....

Looks like Wally has the best suggestion so far...

You guys are coming up with better suggestions than the woodworking
groups......

Michael.

Michael wrote:


Apparently, 'southern pine' weighs 590kg per cubic metre. That means your
bit of wood weighs about 1.5 tonnes. What are you planning to make out of
it?


--
Wally
www.wally.myby.co.uk
http://iott.melodolic.com

It will be for a Radio Control Submarine (Russian Akula Gepard). Plan is to
make the fibreglass plug out of wood.

Michael

Michael wrote:


Sounds interesting. Here's a quickie showing the sort of thing I was
thinking of...

http://www.melodolic.com/3D/LatheStand/LatheStand.htm

Arbitrarily done in 3"x2" RHS with brackets from 2" angle. Bolted, welded,
whatever.


--
Wally
www.wally.myby.co.uk
http://iott.melodolic.com

Michael wrote:


There's a thing - won't the radio stuff stop working if it submerges? (Isn't
that why they use sonar - radar doesn't work underwater?) Or is it for
surface use only?


--
Wally
www.wally.myby.co.uk
http://iott.melodolic.com

Nope it will dive just like the real ones.

If there is one question I get asked the most, its that. Radio waves are
good for around 4m depth, much more than that and you can't see it anyway.
However, having impurities in the water like salt or chlorine, prevents
pretty much all the radio waves from penetrating by increasing the
conductivity of the water. If you do go out of range/signal then you have
failsafes to bring the sub up.The lower the frequency the better the
penetration.

Michael

> Michael wrote:


It will be for a Radio Control Submarine (Russian Akula Gepard). Pla
is to
make the fibreglass plug out of wood.

-----------------

Wouldn't it be easier to use a scaffolding pole with foam blocks t
make the plug?  If you want it in solid that is.

Otherwise reverse the process.  use a female plug and a large balloo
to press the fibreglass outwards. Then you could run the plug up out o
1mm sheet, rolled and wheeled to get the taper.  The more pressure yo
put inside, the more rigid it will become (to a point)

You can also split the hull, so you can lay the layups on the bladde
before wetting out, joining the hulls and inflating the bladder.  I
might even be worth seeing if someone can supply you with prepreg o
try your own resin injectio

--
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Does the mould really need to be made of solid timber? Couldn't you
fabricate a hollow one from boards supported by ribs in the same way as real
boat hull is made?

Cliff.

I guess I could, but as the hull is a teardrop shape makes slightly more
difficult.....Also as they hull is so long I'll need to have lots of
ribs....

Still a possibility though..

Michael