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Member postings for Tony Pratt 1

Here is a list of all the postings Tony Pratt 1 has made in our forums. Click on a thread name to jump to the thread.

Thread: Lest we forget
06/06/2021 13:23:56
Posted by J Hancock on 06/06/2021 13:20:38:

The question I would like to ask, to all of those who sacrificed their lives for our 'today' , is this.

For what we are today , would you do it again ?

Absolutely pointless, they were 'of their time' as we are 'of our time'. there was a job to be done and that was the end of it.

Tony

Thread: Scalped on my doorstep - it left an unpleasant taste in my mouth.
06/06/2021 08:42:08

Never a good idea to buy from cold callers for anything.

Tony

Thread: Master key - precision chuck.
05/06/2021 19:28:05

A 3 jaw is a 3 jaw, never super accurate but good enough. Not the best work holding device for 2nd op machining.

Tony

Thread: Sine bar
05/06/2021 12:42:53

As long as you know the roller centre distance of the sine bar it's simple trig to work out an angle.

Tony

Thread: Ebay Chancers
05/06/2021 08:49:15

The Ebay vice is wrongly described, it should read 'boat anchor'

Tony

Thread: Lathe run out
04/06/2021 19:00:53
Posted by Martin Kyte on 04/06/2021 16:10:29:

If you bturn a waist on your bar so you have 2 'collars' at either end you only need to turn those for your test. instead of traversing down the entire length.

regards Martin

He's been told this alreadysad

Tony

Thread: Taper due to tailstock height misalignment.
04/06/2021 08:36:39
Posted by DC31k on 04/06/2021 06:29:47:
Posted by duncan webster on 04/06/2021 00:16:17:

The bar will be bent upwards...

The OP says, "turning parallel between centres ".

You link to equations for a cantilever beam, which implies encastre at one end. How does a pointy centre do this?

Oh god here we go! crying

Thread: What are these morse taper collets for?
01/06/2021 13:33:19

From distant memory they are adaptors for holding parallel shank drills which then go into capstan lathe turrets.

Tony

Thread: Screwcutting on the Bantam
27/05/2021 20:49:37

What idiot ‘designer’ would use 27 TPI? 🤬

Tony

Thread: Stupid moment
26/05/2021 18:24:58

Most of us have there. 🥴

Tony

Thread: Mitutoyo Digital Callipers
25/05/2021 22:21:57

Loads of posts on the net about fakes, suggest you don’t support criminals but save up to buy genuine items.

Tony

Thread: Distilled water for anodising
21/05/2021 08:59:50

Yes dehumidifier water will be same as distilled but as Andy G says can be dirty.

Tony

Thread: Wire EDM - an amazing capability for the home shop
21/05/2021 08:58:35

I worked on 2 Fanuc wire eroders cost £100k each for many years, absolutely brilliant for 'home projects'.smiley

Tony

Thread: Water soluble coolant
20/05/2021 10:38:06

Never had a problem with the table etc rusting using the correct strength coolant but yes I have seen rust under vices. I used to apply oil liberally under the vice bottom before bolting down.

Tony

Thread: Help needed on Boring Bar insert.
19/05/2021 16:30:19

Not for a threading insert.

Tony

Thread: Laser Cutting Guide for Femi NG120ABS bandsaw
19/05/2021 12:47:39

I was interested in one of these until I saw the pricefrown I will have to stick to my old Kennedy Hexacut.

Tony

Thread: Tribological query re shafts and bushings!
17/05/2021 13:09:23

No not ally or Mazak as it's magnetic to a degree. End structure looks porous so I'm thinking sintered with some sort of ferrous material but has a polished looking surface on all external features either from the sintering mould or a sizing die.

Tony

17/05/2021 11:20:08
Posted by Tony Pratt 1 on 17/05/2021 11:03:10:

Definitely not machined, on careful examination I think possibly extruded.

Tony

Or sintered & 'sized' using dies.

Tony

17/05/2021 11:03:10

Definitely not machined, on careful examination I think possibly extruded.

Tony

17/05/2021 09:12:18

Andrew, are these what you are after, 10 mm bore, 14 mm O/D , 15.2 long with a 5 mm key? PM your address if want them.

Tony

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