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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: Need to get a Welder!
14/01/2017 18:14:49

Try the mig welding forum **LINK**

14/01/2017 17:39:42

Your needs depend on the gauge of the steel you want to weld so max and min Amps are important.

To weld both car gauge and say 3mm + thick angle iron you need a MIG welder that goes from 20A up to 170A single phase.

To stay in your price bracket that'll be a big ol'e 2nd hand unit. I paid £200 for mine off the bay much better than the hobby Cebora 130A I used to have, only needed a lead re making as the monkey had not bothered to tighten it on the earth clamp.

Gasless sounds great but is in fact a waste of time and you're back to chipping slag.

People seem to forget to change / clean the torch tube or use old rusty wire then think the wire feed is toast and sell it cheap.

Thread: minnie 1" scaled to 2"
08/01/2017 20:12:51

I began my Minnie boiler in back in the 80's using the book of words. Not wanting to use coke as insulation I thought I'd be clever and get some fire bricks. Being a child of the 50's, fire bricks to me are heavy grey hard things that protect the side of the hearth from too much damaging heat from a coal fire. I can confirm they are medium rubbish at insulation when compared to a bit of Rockwool. They are not made of vermiculite and you can get them to glow eventually, but it takes ages.

Thread: Am I blackening steel correctly?
02/01/2017 20:32:52

I have some old 1935 C section steel used for telecoms racking some parts cut / drill well and some spots are hard.

So mixed scrap in steel is nothing new.

I remember old 60's/70's jap cars rusting rather badly.

Thread: Milling Machine Vice
02/01/2017 20:15:56

Rotagrip in B'ham do a decent cheap vice 75 x 75. At least mine was.

Thread: Centec 2b base dimensions
23/12/2016 15:35:20

Coolant return laugh

Thread: Recommend First Time Starters Lathe
22/12/2016 16:48:07

Best to read the forums very carefully

Remember electronic speed controllers reduce the torque as they reduce the speed. Belt systems increase torque.

Some of the control boards were/are known to blow if overloaded or if they get damp. Belts just slip.

Yes you can return if faulty , but not if you miss-treated it, and then that's two more times you need to be at home + the delivery may just be to the curb side not to where you want to use it.

Some lathes can swing 7" diameter, but you can't get a tool to cut the outside edges just the face.

Any thing with Myford written on attracts a premium price, but then you can get it back one day.

New stuff is like new cars they just get much cheaper 2nd hand.

It's your money, chose what suits you best.

Thread: Best way to cut stock to size
20/12/2016 20:48:03

As to spark damage, never ever point the spray of sparks at any glass, they will melt in even if not still glowing.

Thread: Centec 2b base dimensions
20/12/2016 20:35:50

The manual !! ( the set up doc mentioned above) you buy are the same as on the yahoo group for free.

It will not tell you how to dismantle it, just how to set up your shiny, new from the factory machine. Bit like your glovebox handbook that comes with a car, useless for changing the thermostat.

Thread: What the 'ell was that?
19/12/2016 19:16:48

Back in the day the loudest ever was said to be the f111, but then having been to a Airshow and been underneath an EE Lightening going vertical all I wanted to do was jam my elbows into my stomach whilst still blocking my ears.

Thread: Pink Flux-coated Silver Solder Rods
18/12/2016 21:06:35
Posted by Chris Evans 6 on 16/12/2016 21:57:41:

I used to braze with "Sif Bronze" pink coated rods, would these be the same thing ?

I have used these as well - not silver solder just brazing rods. Not that is matters for the use intended. I used carbon arc, but that was steel on steel.

Thread: 140 Amp Polarity Reversing switch
18/12/2016 20:55:51

Mikes connector suggestion is just what you get in better gas/nogas welders. Just make sure you do them up tight else they spark & burn.

Thread: Private messages - scam?
10/12/2016 12:50:53
Posted by Les Jones 1 on 09/12/2016 19:01:24:

Not a private message scam but I thought it might be worth posting the warning. I have just had an email claiming to be from "HM Revenue & Customs" claiming I am entitled to a refund. I thought this suspicious So I looked at the URL of the link it wanted me to click. This is the URL of the link .

"http://hurtowniaslodyczy-maja.pl/wp-content/service.php"

It does not look like a link to a UK government department.

Les.

If you get one of these to start with consider how HMRC got your email address.

HMRC will write to you using paper and ink and if they owe you money just ignore the letter and they will send you a cheque, which you pay in to your account. No electronics, no risk.

Thread: Heinz Beanz advert banned for health and safety reasons
24/11/2016 19:58:55

I suspect this was more to do with money.

Little Johnny cuts himself banging the wrong end of the bean can.

Grasping parent says who's responsible, I want compensation?

Lawyer says the regulator who didn't ban it plus the bean company.

Thread: Any ideas how to undo these screws?
12/11/2016 20:38:03

steel + aluminium + salt water = battery

I suspect those threads have corroded up badly

Would have thought you need to heat up the alloy as it will expand more than the steel.

There's always a hot air gun, the Titan one from screwfix is cheap and quite good just remove any plastic

Thread: Fridge problems
02/11/2016 19:27:49

Has the thermostat sensor become unclipped from it's home?

Thread: Fitting Ikea Kitchen Units - Me workshop wall is on the way.
01/11/2016 21:05:14

post/feet do the leveling

Theres no gap behind the units they go flat to the wall

Nothing to stop you using ' L' brackets from screw fix as well as the ikea ones.

hardly need any info wink

Thread: Drill Sharpening Machines
31/10/2016 18:48:39

The wheel is coated with diamond not embedded etc use light pressure & it'll be fine. Ram the drill in and it'll overheat and shed the diamond coating.

Thread: W "scale" of oils
21/10/2016 21:05:53

When someone say 30 weight oil they are referring to sae30 the W should only be used for multigrade oils.

You can easily tell any gear oil - it stinks

Thread: radial arm drill.
21/10/2016 20:59:04

be OK for light use or drilling sheet metal if you need holes at 90deg go very light pressure

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