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Member postings for Dave Halford

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
16/08/2018 21:01:59

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
04/08/2018 21:01:07

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
25/07/2018 16:37:31
Posted by Philip Rowe on 25/07/2018 16:34:15:

Anybody here remember "Philplug" (no connection) an asbestos based fibrous material that you used to mix with water and roll in your fingers to form a squidgy plug that was then pushed into the drilled hole? On more than one occasion I can remember pushing too much of the mix into the hole and ending up with the screw shearing off, but if you got it right the screw never pulled out. Back on topic, I have found from time to time when removing fixings in plastic plugs that they sometimes pull straight out without even having to turn the screw but I have always attributed this to the incorrect plug to hole size having been used.

Phil

Edited By Philip Rowe on 25/07/2018 16:35:22

Oh yes.

You were supposed to spike it before it set :O)

Thread: Shingle bells
17/07/2018 16:22:04

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
15/07/2018 14:05:02

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
15/07/2018 12:03:21

Posted by Nick Thorpe on 15/07/2018 09:56:38:

Thanks Dave, I started with a Google search and those links are no longer active.

Take your point, dormant company when you look a bit harder.embarrassed

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.

14/07/2018 17:50:58

Posted by Nick Thorpe on 13/07/2018 08:33:53:

Morning All,

A friend is looking for a timber workshop 5m x 4m, with pent roof. It will probably be bespoke. Can anyone reccommend a supplier please?

Many thanks,

Nick

PS: I bought mine from Malvern Timber Framed Buildings three years ago but they sadly seemed to have disappeared.

Try these

https://www.google.co.uk/search?rlz=1C1CHBF_en-GBGB772GB772&ei=gChKW8_fNcmMgAbKzbbACA&q=malvern+timber+framed+buildings&oq=malvern+timber&gs_l=psy-ab.1.0.0i67k1j0.3913.6602.0.8583.6.4.0.2.2.0.68.224.4.4.0....0...1c.1.64.psy-ab..0.6.229....0.bbK3rJShLQM

Thread: Minnie Traction - Cutting Water Gauge Glass
09/07/2018 15:52:56

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
08/07/2018 18:04:57

and glass bottles

Thread: Workshop in this weather..?
04/07/2018 16:18:04

Those in the UK just think 'Summer of 76'

Thread: Chuck identification
30/06/2018 20:54:35

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
28/06/2018 15:16:00
Posted by Bazyle on 27/06/2018 00:21:06:

Temperature is also a problem for the phone and cable TV boxes along your street, often painted a nice dark green. The equipment inside can cope to some extent but eventually it just falls over big time. It would help to paint them white but the local authorities won't allow it.

Double skinned cabinets stop that

Thread: Electric Motors
31/05/2018 11:06:40

Hi Raph,

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'
28/05/2018 19:37:30
Posted by Neil Wyatt on 24/05/2018 18:36:32:
Posted by Mark Rand on 24/05/2018 03:26:31:

... I quite often use Permabond 1046 for poor fits. Why? because I've got a couple of large bottles of the stuff and it's thicker than Loctite 603 or 648 smiley.

Inspiration at last .... 'permabonded'.

Sorted!

Neil

Doesn't 'permabonded' stray into the realm of a more permanent bond, one could even say 'araldited' smileysmiley

Thread: Dropping 12v dc to 6v dc
25/05/2018 21:11:28

Sorry,

Posted by Rob Rimmer on 25/05/2018 18:27:36:

Posted by Speedy Builder5 on 25/05/2018 17:49:40:

Dave H, I can't see a 12 to 6volt dropper on that site/link Am I missing something or did you mean buy 2 x 6volt batteries ?

BobH

Possibly Dave H is suggesting using one of their 12V batteries and tapping off the exposed connector to get 6V? But I'm not fully sure whether vintageengineer needs 12 AND 6 volts?

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?
25/05/2018 16:44:28
Posted by BDH on 25/05/2018 12:43:00:

I'd have to disagree about us being Luddites, we don't go about smashing machinery (usually).

Brian

Only when we go moving mills about on tiny wheelssad

Thread: Dropping 12v dc to 6v dc
25/05/2018 16:42:00

One of these maybe?

https://www.tayna.co.uk/car-batteries/classic-car/

Thread: How to adjust the alignment of the head-stock on a BG1224 lathe
19/05/2018 15:46:29

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
17/05/2018 21:06:41

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
14/05/2018 20:55:55

Suggest you dismantle one and see the way they are built.

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