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Member postings for Michael Briggs

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

Thread: Just splashed out on a precision instrument
24/11/2017 20:50:14

I bought a 'Mitutoyo' micrometer on fakebay last year. It was quite convincing until I removed the screw, got a refund from the seller who claimed they had been duped. I doubt that.

Thread: Measuring Tolerances
04/11/2017 12:11:41

Hello Hopper, not guilty. Either Moore or Wrong did it.

04/11/2017 09:40:51

Genuine Moore and Wrong:

a041 - 20170828_232146.jpg

Thread: 3 phase inverter query?
02/11/2017 08:04:13

Allen Bradley, Mitsubishi and IMO all state that a motor should only be disconnected from the drive output when the motor is at a standstill. That is NOT an exhaustive list, just a 10 minute search. If you need to switch the drive output, read the manual or contact the manufacturer.

01/11/2017 22:53:13

+1 Andrew, it is disconnection that is the problem.

Thread: Are Stevenson's ER Blocks Useful
24/10/2017 21:55:35

I have had success holding short lengths in ER collets by putting a short slug of same sized material in the other end of the collet.

24/10/2017 16:50:35

I find the blocks very useful. Quick to put a square or hex on a round bar and a simple way to hold a piece of round bar very securely without bruising the surface. Secure the bar in the block and then put the block in the vice or clamp to milling table.

Thread: Faceplate or Independent Chuck?
23/10/2017 23:49:23
Is that a tumbler, MB ?

Nigel B

Hello Nigel, it is just a tin of paint ! Nearest thing on hand to show useful the 6” chuck to me. Would have been a better illustration if I had something big enough to extend the jaws in to the gap as suggested by Jason. Regards, Michael.

Thread: Centering square stock in the 4-jaw
23/10/2017 11:58:17

As mentioned earlier in the thread, small chuck keys make adjusting the four jaw chuck easier and faster. I made two of these:

key.jpg

Thread: Faceplate or Independent Chuck?
22/10/2017 23:25:54

No problem at all, regards, Michael.

22/10/2017 23:13:37

Had to nip out to take a quick photograph. The 6 inch four jaw is very useful to me :

4 jaw.jpg

22/10/2017 22:36:57

Posted by Michael Gilligan on 22/10/2017 19:50:46:

Posted by Neil Wyatt on 22/10/2017 18:54:02:

I'm not convinced by these 6" chuck arguments at all...

.Likewise yes

The Myford 'screwed body' 6" 4-jaw is very useful in the gap ... but decidedly limited over the bed.

MichaelG.

Not in my workshop.

Thread: New chinese lathe or old Myford lathe
21/10/2017 10:06:14

Posted by Andrew Johnston on 20/10/2017 21:47:

There are still bargains to be had, but you have to look harder, and be patient.

Andrew

I have had many real bargains from Ebay including my Myford, Senior mill and most of my tooling. Ten years ago it was easy, today is a different story.

Thread: Tig
18/10/2017 22:06:54

Hello Andy, I have a Thermal Arc 175TE. Before that I had a lift start tig and had no end of problems with tungsten contamination on lifting the electrode. It may have been my fault due to inexperience but HF start solved my problems.

Thread: What's this for?
15/10/2017 16:31:52
Posted by Neil Wyatt on 15/10/2017 15:41:25

But surely the plate would need to be securely and accurately located, and all its potential 'locating' faces are hammerited.

Neil

My thoughts too.

Thread: Bitcoin crashes...
14/10/2017 19:58:32

If I invested in some my wife would think I was a bitstupid.

Thread: The Benefits of using a standalone dividing head.
08/10/2017 13:47:16

For pcd's use your DRO, hex milling : **LINK**

Thread: Marriage Allowance
08/10/2017 10:24:26

Good news to me any many others no doubt. Thank you very much. Regards, Michael.

Thread: Milling Vice
01/10/2017 19:40:34

I have two type 2 Arc vices. They are very easy to use, I have a replaced the cap head screws with a better quality item. As Jason suggested a tee Allen key makes operation a breeze, use a standard type rather than ball end. To release, unscrew about two turns then lever the screw by pushing the key forwards. No connection to Arc, they are one of the better suppliers we have, but not perfect. I have not received a shed load of free goodies from them, just decent service tarnished by a frosty reception when making justified returns.

Thread: band saw
30/09/2017 17:35:01

That will be Femi, I am thinking of buying one.

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