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Member postings for derek hall 1

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

Thread: Old Engine Ads from a bygone era
08/04/2021 08:47:15

Good video....and no annoying background music!

Regards

Derek

Thread: Recommended suppliers and services
08/04/2021 08:45:28

+ 1 for CUP Alloys. I agree with all the other companies mentioned so far, can I recommend Power Tools Direct who sell amongst other things genuine "Python" wooden file handles at reasonable cost.

In addition M Machine metals, Hemmingway Tools and Westfield Fasteners esp for stainless steel cap hd, grub screws, buts and washer of all sizes.

I agree with Bill D, we are fortunate indeed to have the support and expertise of suppliers for our needs.

Regards to all

Derek

Thread: Tailstock Die Holder (metric)
04/04/2021 18:33:57

After many years of using a very basic tailstock die holder, I decided to get the imperial and metric set as per Jason's link. Recommend....a great piece of kit in a purpose made wooden box.

Yes I could have made something similar but with so many projects to make on my list and so little time......

Regards to all

Derek

Thread: Electric Smart Meters
02/04/2021 08:05:48

Easiest and quickest way for the UK to save energy is to turn off alternate floors of office lights.

London city for example with its towering office blocks lit up like a xmas tree for most of the night probably most of them empty as the occupants have either gone home after their days work or are now working from home....

Those that work nights simply "hot desk" to a floor that is lit.....

Regards

Derek

Thread: Fake or real
26/03/2021 10:57:58

Great post Dave and all true.

I work for a UK company but now owned by a faceless American consortium, their mantra is profit first quality of product a distant second.

Some of our equipment is manufactured in China, but the Chinese wages are increasing, the Chinese worker wants western luxuries, colour TV, car etc, and it is increasingly there is a shift for many Western manufacturers who use China as a cheap place to make their "stuff", to relocate to other countries such as Vietnam and Indonesia.....and even back here to the UK...

Yes I know it's not a model engineering topic but it does sort of affect where we buy "our" stuff from..

Regards

Derek

Thread: What's the general consensus please?
26/03/2021 07:23:38

I suppose if you buy a mill/drill machine you can do both!

I have an Emco mill and very rarely use it for actual drilling, I would not want to be without my 40 year old sealey 1/2 inch 5 speed pillar drill.

But horses for courses.

If space is tight then you obviously need to assess what sort of work will you be doing and what machines give you the flexibility to do that.

Regards

Derek

Thread: There may be a delay in some deliveries ...
25/03/2021 07:05:37

Well if it takes a gale in this country to blow over an artic lorry, then a ship of that size becomes a wonderful "sail" to a mere breeze of 30mph.

If the ships hull has been damaged by the simple analogy of a simply supported beam at both ends, the weight of the unsupported midship could be catastrophic to this vessel.

Regards to all

Derek

Thread: The Secret Science of Sewage
19/03/2021 17:13:59

I worked for Anglian Water for 15 odd years in the "lumpy water" side doing mech and elec maintenance from the late 1970's. I watched the program last night and it bought back many memories!...pity there is no smelly vision!

Get that black sludge on your hands and you couldn't get rid of the smell despite washing your hands loads of time....only way we could eat our sandwiches at lunch time was put aftershave on our hands...looking back believe it or not it was a great job!

Interesting for me was that the actual process is still unchanged from when I worked for AW 40 odd years ago...

Regards to all

Derek

Thread: JB Weld
16/03/2021 12:36:45

Wow thats really interesting Tug,

I have never used JB Weld and in fact never heard of it until it was mentioned in here.

I understand that it can be filed but is it something that can be machined as well?

Kind regards

Derek

Thread: Plumbing - 'polarity' of tails.
15/03/2021 11:14:22

On the Danfoss thermostatic valves I have fitted over the last few years, the instructions with the valve show that you have the flexibility to fit them on either flow or return. You configure the valve to do this.

I was always told that it is better to have the control or thermostatic valve on the inlet side, but I have not noticed any difference to be honest as on one or two rads it was more convenient to have the thermostatic valve on the return (outlet) side.

What you need to do though is to find out which pipe is flow and which pipe is return...

Good luck!

Derek

Thread: Model Engineers Handbook
10/03/2021 12:53:20

+1 for Tubal Cain's book. In fact anything by him (the real Tubal Cain aka T D Walshaw), or George Thomas....

Regards

Derek

Thread: A Certain Age
10/03/2021 12:49:48

Before starting my marine engineering apprenticeship I went to a secondary modern skool where I did rural studies which comprised digging the skool allotment/garden......none of your fancy grammar skool antics for me....

I still struggle over verbs, nouns and what they mean etc....but even I know the difference between their and there....

Regards to all

Derek

Thread: Home Made Rear Toolpost Issue
07/03/2021 20:19:14

Hi Dr_GMJN

Your picture shows beautifully crack propagation in cast iron when under tension. Cast iron should always be under compression loading.

If the top plate was steel then that would be a better material.

I enjoy making tools in my workshop as long as they are well designed and fit for purpose. Anything designed by George Thomas that I have made has been worth the time spent making it. I suggest looking at the myford rear toolpost sold as a kit by Kirk at Hemingway Tools. It's not a huge project but worth considering.

I totally empathise we you about wasted time in the workshop, it happens to all of us but you still gain experience from these set backs.

Regards

Derek

Thread: Building a small bench
07/03/2021 09:48:58

I think February 30th is the only day you can go to a UK DIY store and obtain timber that is not warped, bent, twisted or shaped like a banana!

Regards to all

Derek

Thread: Inherited ML7 in need of some love - where to start?
06/03/2021 07:39:47

Duncan....how true!!!

It always makes me smile when I read articles about renovating machine tools and more care and effort is taken in the paint work!

The machine tools ability to do the job in hand far exceeds the quality of the paint finish.

After all once you brush down all the swarf you just created with that old paint brush, that beautiful paint finish is now scratched by all that nasty swarf.

I prefer "lathe..ing" to painting.......I must must remember to say that to the wife when she wants some decorating done around the house!

Regards to all

Derek

02/03/2021 07:56:58

Welcome to the forum Tom.

There will be plenty of expertise on here to advise you, but please resist the temptation to take your lathe to peices to clean and paint it.......... you may do more damage and disturb critical settings that may take a while to realign.

I will leave it to others to help you, but pictures of the lathe would help us assess what is needed.

Regards to all

Derek

Thread: Paper under vices.
20/02/2021 08:50:41

I agree with the comments above, just make sure table is smooth and the bottom of the vice and no swarf can be trapped.

You can use paper to assist with clamping work between the vice jaws or other clamps but this would only be temporary just for the job in hand.

Regards to all

Derek

Thread: Sad News : John Wilding
19/02/2021 19:42:24

Very sad news, I never met him but to be in on conversation with him and GHT over a cuppa....wow....

He left behind some great books and construction articles, thanks John.

Condolences to his family.

Regards

Derek

Thread: A Marine Condensing Engine
19/02/2021 17:06:34

Great work Tug. Really good to see the old engine designs of ME so many years ago come to life. Maybe many are put off building them with the unavailability of castings or even having to making the moulds for such, but just shows what can be done out of the "solid".

I am following your build with interest. I too am a manual lathe and mill twiddler, though one day I might look at a DRO for the mill but as for CNC and g-code and all that....nah not for me, but horses for courses.

But equally entranced with what Jason turns out...

Regards to all

Derek

Thread: Plans for updating the archaic forum?
16/02/2021 17:17:56

Not being an expert on forums but is this classed as an archaic forum? Or is it going to be change for changes sake.

No many people like change but that's life nothing ever stays the same...

Regards to all

Derek

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