Here is a list of all the postings Dave Halford has made in our forums. Click on a thread name to jump to the thread.
|Thread: Is Model Engineering in Decline|
Originally that was why Reeves in Holly Lane went bust in the 90's
I suspect now it's all Mail order and we all pay through the nose for the wonderous convenience or we just live too far away.
Machinery sales should give a more realistic picture of what's going on..
|Thread: Having trouble turning grooves|
I would blame the parting tool holder, with that overhang there looks nothing much to stop the cutting edge pivoting on the front and lifting the back edge as the clamp looks very flimsy.
Side rake is to give clearance
|Thread: Hot Weather and Wall Fastenings|
You were supposed to spike it before it set :O)
|Thread: Shingle bells|
It retreats down the nerves and hides till you get rundown, then it comes back up hence the reason it hurts so much.
Surprised no one has dragged up the old 'If you get a ring of shingles around your waist that joins up you die' very popular story at my old school and complete garbage.
|Thread: Beware the dreaded GOUT|
I had a mate at work back in the late 70's, he was twenty something and had quite bad Gout so not necessarily age related.
|Thread: Supplier for Large Timber Workshop - Recommendations Please|
Take your point, dormant company when you look a bit harder.
I used these http://www.themalverncollection.co.uk/ MPB garden buildings, they pop up in garden centres all over the midlands. Old fashioned company that still uses a fax.
|Thread: Minnie Traction - Cutting Water Gauge Glass|
Used to cut test tubes with steel wire.
glass cold and the wire bent to match the curve of the glass. (bit like a shepherds crook) heat the wire red hot and firmly touch it to the glass.
|Thread: fire warning|
and glass bottles
|Thread: Workshop in this weather..?|
Those in the UK just think 'Summer of 76'
|Thread: Chuck identification|
Not hard Mark, 3 jaw is a Crown, a decent make.
The 4jaw is a Union from New Britain, Connecticut US of A
|Thread: Hot rail tracks|
Double skinned cabinets stop that
|Thread: Electric Motors|
Is the motor rated CONT or INT on the motor plate?
CONT ( continuous) should run all day at the rated output
INT (intermittent) intermittent use at the rated output - requires a cool down period after half an hour or so like a welder does.
My Rockwell Delta 10" behaved like your Myford, run for a while then cut out. I found that despite looking very clean there was a fair bit of plastic swarf and black dust in the motor. A good clean out has fixed the issue. That said it still runs at around 50 degC and according to the insulation letter code it's OK to about 65degC. Check the colour of the windings at the same time, any discolouration is likely to be a faulty coil.
This all assumes that nothing is over tight or running dry in the lay shaft and the motor is an internally cooled one.
It's best not to stray far from the recommended motor power for any lathe, they are not engineered for double the HP.
The trouble with VFD's is for lower speeds the motor runs slower and so tends to heat more plus cutting power goes down. Whereas using gears or belts for speeds the motor always runs at the design speed and you get more cutting power.
|Thread: What's the best alternative to 'loctited'|
Doesn't 'permabonded' stray into the realm of a more permanent bond, one could even say 'araldited'
|Thread: Dropping 12v dc to 6v dc|
Sorry, I was suggesting centre tapping the 12V battery, it's the simplest system, but possibly a bit 'old school'. For me Vintage and electronics don't mix
|Thread: Are we Luddites?|
Only when we go moving mills about on tiny wheels
|Thread: Dropping 12v dc to 6v dc|
One of these maybe?
|Thread: How to adjust the alignment of the head-stock on a BG1224 lathe|
You don't say how much use the machine has had.
Is the saddle too loose? If the back lifts try tightening the clamp till it drags a bit.
Will a dial gauge on the tail stock run parallel? If so it's likely bed wear (assuming you move the saddle a lot less than the tailstock.)
Does it run parallel if you just use the top slide?
|Thread: Myford Super 7 Motor Pulley|
There's a genuine new Myford motor pulley on the Bay - buy it now (confess I just put it there)
If you want it now's your chance, if you don't never mind.
|Thread: Ceramic disc regulator|
Suggest you dismantle one and see the way they are built.
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