By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for ANDY CAWLEY

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

Thread: Brass plug
12/07/2015 01:23:45
Posted by alan smith 6 on 10/07/2015 16:17:02:


Most vintage car drivers with cars having a good power to weight ratio are hooligans. The Frazer Nash boys are super hooligans!



'Ere I resemble that remark.😉

Thread: What did you do today (2015)
07/07/2015 14:40:02

Clive, Is that swarm upside down or is it Australian?wink

Thread: Pop up ad on home page
16/06/2015 11:45:24

Neil, Please pass on my thanks to your company for their enlightened attitude, they listen to their customers.

A zillion times better than a certain electricity supply company that are currently driving me mad by their couldn't give a stuff about the customer approach to life ! (Npower if you want to know)

15/06/2015 22:32:07

I too find it very irritating, it pop s up before you get chance to log on😡

I have been a subscribe both direct as now and I the past from my news agent for a good few years now, how about a loyalty bonus of 3 cut price issues? Am I alone in feeling short changed by all these freebies to new subscribers?

Thread: Machining nylon bar stock
12/06/2015 10:25:30
There is a photo on the "What did you do today page of the pile of swarf that landed 4 feet awaysmiley

Edited By ANDY CAWLEY on 12/06/2015 10:27:00

12/06/2015 01:24:13

Machining PTFE I used high speeds ( 800rpm on 90mm dia) and quite hig feeds ( sorry I don't have numbers) and a very sharp tangential cutting tool in HSS. Nylon could easily be similar.

Thread: Helical twist forces?
11/06/2015 19:34:05

Allen Scythes are dreadful! I had a summer holiday job on the council grass cutting gang and managed to drive one into the river as the dog clutch would not release when the was any load on the dogs. As I hung grimly onto the bars, with the clutch lever released but the drive dogs still hanging on the narrow tyres slowly cut through the river bank whilst still spinning. The inevitable happened when the carburettor intake sunk below the surface. The resulting hydraulic lock comprehensively wrecked the engine😒

I was not popular!

Thread: What did you do today (2015)
11/06/2015 10:56:12

image.jpgTangential tool holder, ground surface finished off with a diamond file.

11/06/2015 01:25:02


Look  carefully at the pile of white Swarf on the chest of drawers. It flew in a continuous stream about 4 feet from the lathe. I think it's the first time I laughed out loud whilst turning something in the lathe.

I was turning some PTFE discs about  90mm in diameter at 800 rpm😃

I videoed it and uploaded it to utube but couldn't work out hou to post it here  look up Anzaniste1 if you want a laugh..

Edited By ANDY CAWLEY on 11/06/2015 01:26:44

Edited By ANDY CAWLEY on 11/06/2015 01:38:41

Thread: Workshop Flooring
10/06/2015 05:48:30

I have several items on castors. Do they work on the vynal floor or do the castors sink in when they have stood in one spot for a time?

Thread: What did you do today (2015)
05/06/2015 08:03:54

Martin, that's exactly right. The trick is to get the tyre pressure low enough to get maximum grip but high enough to stop the tyre rotating on the rim. We then have to pump the pressure up to go on the public road to drive to the next section.

04/06/2015 19:03:09

Geoff, the shocks are off the back of my 1925 Frazer Nash.


Edited By ANDY CAWLEY on 04/06/2015 19:07:59

03/06/2015 07:31:42

Yesterday actually. Made bushes for friction shock absorbers. Lignum vitae is particularly satisfying to turn giving a lovely silky finish. It's almost a shame to hid them at the end of a shock absorber😊Bush.jpg

Thread: EMG-12 Endmill Re-sharpening module
28/05/2015 06:00:19

Posted by John Stevenson on 27/05/2015 22:43:22

As regards the striations brought up by various people it is of no consequence to the finish as milling cutters are not ground flat across the face but a very shallow inverted vee with the outside corner being the lowest so in effect although the whole of the cutter is removing material the corner is doing the finishing just like a fly cutter.

NEXT wink

Which explains why what looks like a sharp cutter except for the corners gives a crap finish!


Thread: Case Hardening
25/05/2015 19:09:07
Posted by JohnF on 21/05/2015 22:32:26:

Hi Chris, have a look at this link and the links within the post there is a lot of detail and you can search the forum for case hardening, you will find a lot more posts.



Never a day wasted when you learn something.

I now know that close contact with the steel and the carbon rich pack is not as essential as I had always imagined.

I was interested to learn that carbon went from carbon monoxide into the steel freeing up the oxygen to make more carbon monoxide and so on.

Clever innit?

Thread: Vernier gauge testing.
24/05/2015 21:11:37

Sciince the only thing you are doing is trying to get through scrutineering you need to be able to argue with a scrutineered (in the nicest possible way) if you have a difference. I would acquire a slip gauge that I took to meetings and be able to show that my measurement was accurate against a known standard.

A possible source of inaccuracy using the method described is that of the narrow knife edge of the caliber cutting into the solder not to mention the distortion caused by cropping the solder. A ball ended micrometer tightened up using the ratchet would be more controlled than the method you describe.

Oooh I could be real trouble in the paddock!😉

24/05/2015 10:14:20

Surely the simple answer to the GoCart problem is to use a proper micrometer, they don't really cost a lot of money.

Thread: Case Hardening
21/05/2015 20:53:30

What is it about old leather that makes it a good case hardening medium? Is it something to do with the chemicals that are used for tanning?

Thread: Which (classic?) (Turret?) Milling Machine?
21/05/2015 20:23:58

Russ, if you live within striking distance of Doncaster, come and look at my Centec which will be for sale. No obligation for looking.

PM me if you are interested.

Thread: Major Systems Update at ARC
21/05/2015 20:08:13
Posted by John Stevenson on 21/05/2015 18:47:45.


Not so sure about that. 90% of what the science museum owns will never see the light of day.

They probably only have a third now on display to what they had 30 years ago. The whole of the top floor which was aviation, planes and engines all over, is now occupied by 6 ordinary desktop computers in big desks telling you about green technology.


It's a freeking museum for Christs sake. Makes you wonder who's idea that was and what kickback they got ??

If you want see stuff like there used to be, in proper glass display cases, the place to visit is the Musee des Arts et Metiers in Paris. It's just like the Science Museum used to be with lots of proper old machinery there.

Edited By ANDY CAWLEY on 21/05/2015 20:11:10

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Allendale Electronics
Eccentric July 5 2018
Eccentric Engineering
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest