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Member postings for Howard Lewis

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

Thread: What did you do today (2015)
14/11/2015 17:53:00

The Herdwicks must be better. They have four "wheel" drive with independent power to each one, as well as universally adjustable cutters!

Howard

Thread: Hello, I'm Gary Shepherd
14/11/2015 17:44:25

Hi Gary!

I served my time at Sentinel when owned by Rolls Royce Oil Engine Division.

Before R-R bought the plant, various machine tools were made under licence, or as sub contract work, (such as the Swift Lathe)

Back in 1958 -60, the machine tools still being made were Halifax planers and Cri Dan B and E screw cutting machines. (These would cut a 12 inch long 1 inch BSW thread in half a minute, which was awe inspiring high tech stuff in those days!)

Then the machine tool expertise was used to make specialised equipment for machining Compressor Wheels for Gas Turbines, for the R-R factory in Glasgow.

In the Apprentice training school we had a Thiel Universal Mill, (a nice small machine - wish I had one!) which had been made under licence by Sentinel.

So to answer your question, sort of, your machine is likely to date from the early to mid 50s.

It will have started life as a well engineered and built machine, but who knows what has happened to it in the last 60 years. Hopefully not too much abuse!

Howard

Thread: Chuck for which Lathe?
14/11/2015 16:15:53

I have been given a chuck,. The Backplate has a 1.25 inch 12 tpi Whit form thread and register.

Initially, being too big for a Myford, I thought it was for a Boxford or a Raglan, but checking on the Lathes website showed that it was not for either of these.

Any suggestions please?

Howard

Thread: New lathe arrived today : The ongoing saga
04/11/2015 19:10:26

Having followed this thread for a long time:

The lathe is wrongly named. It should be SUB OPTIMUM.

In U K, the seller could be done under the Trades Description Act, or sale of Goods Act.

For a long time, I despaired of it EVER functioning properly.

If anyone deserves a place in Heaven; (may it be a LONG time before he occupies it), it's Hopper. His work looks to have transformed the machine.

Brian, you cannot believe just how fortunate you are to have found a mate like Hopper.

But, he typifies the way that Model Engineers help each other.

A sad tale, but with a happy ending in sight.

Howard

Thread: super Heaters
29/10/2015 18:57:39

If superheating did not bring benefits, full scale marine, and loco engineers would never have gone to the trouble.

Go for it!

Howard

Thread: Arc Eurotrade a first class supplier
29/10/2015 18:54:37

Can only agree with what has been said before. I have only ever bought one item that was was , by my standards, expensive. for this, and all the little low value orders, polite responses and rapid service.

My preferred supplier!

Howard

Thread: New ideas for tool grinding in the workshop
29/10/2015 18:48:15

Coming in late with a few comments.

1) Thor's picture, is not too unlike the TipLap grinder recently acquired at auction by one of the volunteers at The WaterWorks Museum. By the looks of the gunge that I did not remove completely, from it, never been cleaned from new. Their ambition is to use it, mostly for End Mills, but obviously Lathe Tools and Drills should be fairly easy, once set up with a suitable cup wheel.

2) I use a Worden, (a barely started kit, bought second hand, ) which does most of what I want. One day I may become proficient at Four Facet Drill sharpening?

A fairly basic machine, but does what I want. For the amount of tool grinding that i do cannot justify a Vertex, EMG or anything that sophisticated.

3) A diamond wheel is ideal for sharpening Masonry Drills. Ground as if for metal, they EAT bricks, on the very rare times that I use them!

My take? Decide: What you want to do with a cutter grinder?, ie what tools to sharpen, How often? Size of budget? Space requirements? When you have answers to all these that you consider to be satisfactory, search for/ buy / make/ modify a machine.

And then use the sharp tools to make all the bits that you want/need, and enjoy yourself.

Howard

Thread: New lathe arrived today : The ongoing saga
29/10/2015 18:11:44

Thanks to Hopper, Brian is going to know more about his lathe, and possibly have a better tuned one, that I ever have.

Good on yer, lads! You inspire, and educate, me, (as do many posters on the Forum)

Howard

Thread: The Ass is out of the stables
29/10/2015 18:05:24

Cheer up lads!

At least, reading all these comments takes my mind off what the Thought Police may be planning to do to me!

(George Orwell merely got the date wrong by a few years, if you think about it. Or is thought forbidden, certainly monitored if spoken or wtitten, these days?)

Howard

Thread: Taper Turning set-up
27/10/2015 21:22:35

When I make the internal taper for ER collets, (So far have made at least seven) I do it the quick and nasty way by setting over the Topslide by 8 degrees (maybe my Far Eastern graduations are better than we think). Then, horror of horrors, I wrap a strip of fine emery around a collet and polish with the (collet+emery) in the new taper.

DON'T press too hard or the tapers will grab!

So far am unaware of having had any problems with collets not holding drills, end mills, taps, or work.

It may be a bit crude but seems to work.

Howard

Thread: ER collet chuck
27/10/2015 21:11:39

Since it will, theoretically, allow you to press the collet further into the female taper, it ought to increase holding power.

In practice, it may not have any great effect other than decreasing the thread engagement of the nut by a little over one turn. (2mm travel on a 1.5mm pitch thread).

If you are that worried, why not turn back the front face by 2mm, or am I missing something?

Howard

Thread: myford pulleys slippage
27/10/2015 21:05:17

Its 12 years since I had a ML7 so my memory may well need correcting.

Remove the Chuck.

Remove the bearing caps, keeping the shims with caps as already said.

Lift out the mandrel., and start to strip off everything from the back (away from the Chuck) end, until the Pulley and Bush are off.

Separate the Bush and Pulley, clean both to remove any debris and greasy deposits, and apply Loctite and reassemble. Allow the Loctite to cure for at least 30 minutes before use, (preferably 24 hours)

To aid strip and reassembly, it may be worth heating the pulley in boiling water. For reassembly, with Pulley hot and dry, and Bush cold and dry, apply the Loctite. The higher temperature will increase the clearance for the Loctite, and help the Loctite to cure more quickly.

As they say in Haynes Manuals "Reassembly is the reverse of the above", but you may need to reset the thrust bearing to minimise end float.

To all Myford users, if my memory is faulty. Please correct me.

Howard

Thread: What did you do today (2015)
27/10/2015 18:04:33

Neil,

Sadly, the Bench Shears were nowhere near in the same league as the Durston Guillotine. 16G steel might be about the limit; forget 1/8 inch strip, and stick to cutting shimstock!

Howard

Thread: Free sources of materials.?
27/10/2015 17:48:26

Surely, you only put stuff in a skip as an absolute resort?

There is very little scrap metal in the world. Only when it is too small to hold for further work, or when it is already in small blue or brown curls!

My experience of rebar is that it is not nice stuff to turn.

Wish that there was space for all the stuff that "will come in useful one day", (Probably for my great grandchildren!)

Not tight, just careful, y'ken!

And I'not a Scot.

Howard

Thread: Lady Stephanie
27/10/2015 17:30:03

Take heart! You are all ahead of me. Three reasons:

1) A major lack of courage.

2) Too many other projects of a less fiddly, and quicker, nature keep coming to mind.

3) Awe at the standard of work that everyone else produces!

Keep at it!

Howard

Thread: What did you do today (2015)
26/10/2015 21:06:10

Well yesterday, on a point of order.

Drove over to Hereford, (142 miles) to The WaterWorks Museum, for the last steaming day of 2015, and did a bit of work in their workshop. (Will be open on Tuesdays , and in steam on Sundays next year)

Sorted out their, presumably Chinese, bench shears. It need a pivot making which, unlike the original, fitted without too much slop, and shimmed the moving blade until it contacted the static one. Then it even cut paper!

Then started cleaning up a Cutter Grinder that one of the other volunteers had acquired at an auction for them.

Never ever been cleaned since new by the looks of it, but the wheel has met the holder several times.

Even took time off to watch the celebration of the 120th Anniversary of the triple expansion steam engine and pumps. It is the oldest working triple expansion, certainly on land, in U K.

A fascinating range of exhibits with as many as possible operable, and running. Staffed entirely by volunteers, who make everyone welcome, even irregulars like me. (Am really a PITA since don't where anything is kept, so have to keep interrupting other folk's work to ask)

If you get the chance DO visit, some really old pumps and engines kept in running order, and exhibits that will interest children of all ages.

Now to pick up the threads of where I was in the workshop last week!

Howard

Thread: Adept and Super Adept Register
26/10/2015 19:53:49

There are at least two more than mine at liberty. There is, also. I am told, a collector.

They are there, but well camoflaged!

Howard

Thread: The Ass is out of the stables
26/10/2015 19:50:33

Be careful Chris!

You are not dealing with sensible, logical people, with a sense of humour. One wrong word and you will be banged up for a longer time than any proven murderer.

At the induction to work in Security, the initiation, often seems to be to amputate the part of the brain dealing with common sense!

Once, a colleague and I, each had to get a signed pass out, to leave the premises and go across the road on company business!

(And this was not an establishment involved in defence or national security, purely manufacturing and product development)

Perhaps I'm the one who is paranoid?

Howard

26/10/2015 13:40:23

PP13 Taken to the extreme would make it illegal to manufacture, sell, or use hand or machine tools.

MANY years ago, when at school, one of my schoolmasters used to make cross bows and pistols for hobby of hunting rabbits. In today's world he would be a dangerous would be terrorist.

PP14 Gives the "state" the ability to read minds. (Another addition to cast of charlatans who claim such ability)

Both are typical of the stupid, unrealistic mindset of civil servants who lack any real knowledge or experience of life, who are blinded to practicality by either good intentions or ideology.

My protest is winging its way to my MP, pleading for some common sense to be used.

Howard

Edited By Howard Lewis on 26/10/2015 14:05:32

Thread: Elf n Safety police
26/10/2015 10:21:38

Sadly, Common Sense is no longer that common, anymore.

Ticking boxes, is the easy way out, since that is so much less effort than thinking about what is being , or going to be done.

Thank God that , as long as we remain careful, as non commercial operators, we are exempt from the whims of the untrained or unthinking "experts".

The danger to our hobby are those who do not think, are careless, and involve themselves in needless serious accidents. being realistic, we all, from time to time, take risks ( of which we are aware) and suffer minor injuries.

Minor, because, in the general scheme of things, we are pretty careful. Lets keep it that way!

Howard

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