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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: Centre Drill Leaves a “Pip” - Sometimes
25/07/2021 12:28:18
Posted by Andrew Johnston on 25/07/2021 10:22:03:

If small drills are wandering without centre drilling first then either the drill, or technique, are in need of revision.


Pray tell us what is this wonderful technique which guarantees a small drill will not wander on touching the work piece surface.



Thread: Is there a chart for drill hole dia vs. boring bar size?
24/07/2021 10:33:16

No magic formula exists as far as I know, just experience.


Thread: Centre Drill Leaves a “Pip” - Sometimes
23/07/2021 21:30:23

For small drills you can just use a sharpened pointer to make a starting indentation in the work piece.


Thread: Bench grinder
23/07/2021 21:29:02

Most of the cheapo Bench grinders are not 'fit for purpose', If they were constantly rejected by the consumer the manufacturers might up their game.


Thread: New Chuck won’t screw on
21/07/2021 17:14:09

A picture paints a thousand words. In the meantime check both threads are completely clean.


Thread: Setting up rear parting tool properly
21/07/2021 16:25:29

The first picture looks 'wrong' to me, the tool boat should be nearly horizontal, maybe like that to get the centre height right? As it is the 2 clamping screws are going to have edge contact only & will not be very secure. More detailed advice from others will follow I'm sure.


Thread: E10 Petrol
21/07/2021 12:31:43

So will this new E10 petrol 'go off' even quicker than E5?


Thread: Aluminium
19/07/2021 13:35:59

Looks good for a motorbike seat.


19/07/2021 12:34:15
Posted by ChrisB on 19/07/2021 11:36:54:
Posted by Dave Smith 14 on 19/07/2021 08:53:49:

1050 is no use for anything except foil and labels being pure Aluminium.

Where did you get that from?!

Chris B, I also would like to see the data.


Thread: Lower back issues
18/07/2021 13:03:37

A PSA test might save your life, I'm quite happy to be tested for anything & it's free at point of use.wink


Thread: English members who have moved to France.
18/07/2021 09:24:41

All I can say is why? Seriously make sure your head rules your heart or else you could end up in deep s***, I know a few.


Thread: Tool post height
08/07/2021 15:26:58

Never had a problem unless I didn't tighten it up properly, yes they do have overhang but in practice they are more than rigid enough for our purposes. Even used them on Haas CNC lathes.


08/07/2021 13:54:10
Posted by Roderick Jenkins on 08/07/2021 13:50:14:

Lots of "theory" on here about the lack of rigidity of QCTPs. I have never had a problem with mine on my S7. I have a Gibraltar post and have only ever used that with a boring bar that is too big for the tool holder (and for my J&S knurling tool which has a shank which is too big).


I agree, if you tighten a QCTP correctly there should be no problem with lack of rigidity.


Thread: re-magnetising magnetic base
07/07/2021 15:01:39

Never heard of a re-magnetising service, if the useless one is a far eastern object it may have been cr*p from the start & a similar replacement could be the same? Back in the day Eclipse etc were decent items.


Thread: Tool post height
06/07/2021 17:17:31

Much easier to mill the tool base.


Thread: Live Centre For A Boxford?
06/07/2021 15:24:39

Just had a quick look at APT & the good news is they quote a TIR so their product would have to meet that easily checkable spec, other sites just quote 'precision' with no figures to guide you, also stub point should be more rigid as they are shorter.


Thread: Shock at low pay for high skill
05/07/2021 20:37:02

I also believe the railways/underground are highly unionised?


05/07/2021 17:49:04

What constantly amazes me is the wage train drivers seem to get.


Thread: Universal thread cutting
05/07/2021 13:57:03

JasonB, Yes you have to keep the half nuts engaged at all times if cutting imperial threads on a metric lathe or vice versa.


04/07/2021 19:46:29

If you want a lathe to cut imperial/metric threads at the touch of a button look no further than the ELS by Clough42, many of us have gone down this route. Can't comment on your Mars landing reference, but CNC will do more or less anything you want if you have the knowledge & funds.


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