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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: Any idea what these are for?
21/05/2022 14:55:06

True but who knows.

Tony

21/05/2022 13:03:58

Don't know what they are but pretty sure they are not turning tools. Maybe forming punches for sheet metal ???

Tony

Thread: T-slot cutter
20/05/2022 14:19:15
Posted by bernard towers on 20/05/2022 13:57:39:

How do you manage to break a commercially made T slot cutter???

Any cutter can be broken & a T slot cutter is not the most robust of things, the OP said this was his first attempt at a T slot, maybe with no guidance from a more experienced machinist.

Tony

Thread: A question about reamers and hole tolerances.
17/05/2022 17:49:05

Do you mean you wasted thousands of pounds of taxpayers money so likely a defence contractor? I don't like to blow my own trumpet like some on here but 49 years in precision machining working across various industries gives me a fair idea what is and what is not possible. Oh and my last 2 years of paid work was for a defence contractor who will remain nameless.

Tony

17/05/2022 17:25:00
Posted by JA on 17/05/2022 16:58:58:

I think the above table is a load of rubbish. It is interesting that copper is included. At work we broke over 60 1/2" reamers trying to ream holes in a copper block. We gave up and the research project was abandoned.

Are you having a laugh? Copper is definitely a material which can be reamed if you know what you are doing.wink

Tony

Thread: Drill bit storage
16/05/2022 17:17:58
Posted by Adrian R2 on 16/05/2022 17:08:22:

A related point. Why don't metric drills come in useful sets? i.e. ones that include tapping sizes for the standard fastenings - I seem to have little use for the half sizes that come in standard sets but then I am missing 3.3 and 4.2 for tapping M4 and M5. Or am I looking for the wrong thing, or doing it wrong entirely?

They do, the tapping sizes are part of the bigger sets, obviously your most used drills will go missingwink

Tony

 

 

Edited By Tony Pratt 1 on 16/05/2022 17:18:37

Thread: making a Square
12/05/2022 20:03:43

Dave S, good luck to you! I'm sure you have learnt plenty whilst making your square.

Tony

Thread: ER16 Collets from Ebay
09/05/2022 19:50:33

So Bill what did you do with these out of spec collets from APT?

Tony

Thread: Thread gears for Warco GH-1322 lathe.
05/05/2022 13:00:36
Posted by not done it yet on 05/05/2022 07:38:09:
Posted by Tony Pratt 1 on 04/05/2022 21:13:17:

3 holders are nowhere near enough.wink

Tony

You,ve (clearly?) not looked at the Arceuro offerings? Tool post separate, or with 3 tool holders.🙂🙂

The school has a mill. Both gears, and extra tool holders, should not be difficult to make? It’s what I did.

They also sell single tool holders which I have purchased in the past, also bought directly from China & I did make one special holder for a cut knurling tool so I have a fair idea of the options.

Tony

04/05/2022 21:13:17

3 holders are nowhere near enough.wink

Tony

Thread: Which Collet Chuck?
29/04/2022 14:16:13

Flange mount every day of the week.

Tony

Thread: warco 918 bench lathe
25/04/2022 09:59:28

I had a Myford super 7 for over 40 years, beautiful bit of British precision engineering with a nice feel it was worn out when I bought it & still is now that my son has it, difficult to turn parallel.

My Warco 290V is rough as a badgers ar*e but a very capable machine, no nice feel to it & some of the construction techniques are shockingly bad but overall very pleased with my purchase, easy to turn parallel, I have already gone down the electronic lead screw route & am assessing a spindle clutch design, my next task is to sort out the sticky cross slide.

Tony

Thread: Myford induction hardened beds
21/04/2022 12:46:31
Posted by Hopper on 21/04/2022 10:24:33:

Usually CI beds etc are not hard-hard like hardened steel anyway. Just harder than untreated cast iron. So a scratch test could be a bit inconclusive.

My Warco lathe is meant to have an induction hardened bed, it has the nice shiny label but I'm not convinced it has been 'hardened', as you say a scratch test is inconclusive.

Tony

Thread: work slipping while threading ...
17/04/2022 18:35:19
Posted by Nicholas Wheeler 1 on 17/04/2022 18:02:22:

Is a 3/8 thread really that big to die cut in a smallish lathe? I've made a number of M12x1.5 parts in both my wm50 and the mini-lathe that I had first.

And I really can't see why you'd faff about screwcutting something only to finish with a die. The reason for having the die is to save the extra work

Screw cutting removes the bulk of material & the die allows you to size the thread with relative ease.

Tony

Thread: Rising costs of materials
12/04/2022 18:02:14
Posted by SillyOldDuffer on 12/04/2022 17:37:09:
Posted by Hopper on 10/04/2022 11:28:59:

Steel prices were rising before Ukraine got messy. They blamed it on Covid, then on l ... Long story short: price gouging. ...

Even worse, some economists argue Price Gouging is a good thing because it sorts out priorities, stuff ending up only with people who really need it. Don't believe it myself: when Covid kicked off in the UK, too many shelves were emptied by selfish well-off folk filling their Range Rovers with Pasta, Bog Rolls, Eggs, Milk and Baked Beans. Single mothers with a nasty cough and 5 kids to support could go to hell...

sad

It's been proven many times that 'economists' know bu**er all about anything especially the 'economy'.

Tony

Thread: Cardboard Packaging ? A Cautionary Tale
12/04/2022 09:16:06

Cardboard is the worse thing ever for storing tools, I used to cover the boxes in solvent based varnish to seal.

Tony

Thread: Imperial v Metric Measures
09/04/2022 18:22:48

Oh no not yet another pointless thread on Imperial v Metric Measuresfrown

Tony

Thread: ER16 Collets from Ebay
09/04/2022 09:06:46
Posted by Peter Greene 🇨🇦 on 08/04/2022 22:38:56:

Posted by B Tulley on 08/04/2022 21:58:52

:........resulted in a response of "less than a thou"

AKA "beats me!"

Yes they obviously have no idea.

Tony

Thread: Rising costs of materials
08/04/2022 21:19:35

Just look up 'price gouging' on Google, the pandemic & now Putin have created a perfect & ongoing opportunity for the many rip off merchants.

Tony

Thread: ER16 Collets from Ebay
07/04/2022 20:14:44

From my experience the RDG offerings will be the same as the eBay stuff but with a big mark up as you said, all made in China, which isn't a bad thing in itself. My last purchase from them wasn't a happy experience.

Tony

Edited By Tony Pratt 1 on 07/04/2022 20:15:39

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