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Member postings for chris stephens

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

Thread: Myford 3 phase motor upgrade
02/10/2014 00:57:19

Hi Brian, are you thinking of the complete kit or a DIY set up? The DIY route is not difficult and can be cheaper. Whichever you go they are worth the effort, it will quite transform your lathe.

Re vibration possibly due to belts, are you using "cogged" belts and do you release the tension when not in use to reduce the risk of putting a set in them.

chriStephens

Thread: Model Engineers' Workshop Open Forum
01/10/2014 23:26:19

Never mind rotten or not tomatoes, buy tinned ones and concentrate your fire-power.wink

Thread: Drilling holes in round objects
28/09/2014 01:09:29

True enough Jason but does that apply in this instance?

Thread: Favourite Engineering quotes.
27/09/2014 13:15:06

Corollary to Neil's point, if you do, make sure to count your fingers afterwards, at least with the first two.

Thread: End of Subscription Pending
27/09/2014 13:09:55

The main underling force that drove the changes in media was the demand by consumers for more and more choice in the material they view and the need to view it at a time of their choosing.

Hi John, don't you mean the advertisers were clamouring for more channels to increase their revenue, I have never heard a viewer say anything other than there are too many, with the concomitant result of lack of quality as any quality there maybe is now spread too thin. Jaundiced view, I think not.

Thank goodness we now have Youtube and the likes of Tom Lipton(oxtoolco) James Kilroy, Keith Fenner , April Wilkerson et al.

chriStephens

Thread: Drilling holes in round objects
27/09/2014 12:51:50

The easiest way is surely to have a vee block on a morse taper in the tailstock and a drill in the lathe chuck. At least Myford and Southbend thought it so as the sold them for that purpose. The old ideas are often the best, what.

Thread: Favourite Engineering quotes.
26/09/2014 12:03:21

Always aim for perfection, but it is OK to settle for excellence.

18/09/2014 18:36:58

Many years ago when I used to help service narrow boats for hire, I learnt from an old timer that there were several degrees of quality. There was idiot proof, then came squaddie proof, then best of all hirer proof! Some of which you wondered how they got to be old enough to hire.

Thread: Metric thread
13/09/2014 02:31:00

When working on old cars it would be a mistake to assume a continental car is all metric or that a Brit one is all imperial. It is also foolhardy to assume that a metric diameter has a metric thread. As an example Lancia petrol fittings can be 20mm by 20TPI and not 20 x1.5mm , the voice of experience speaking. Old Morris cars use metric thread on their engines but have BSW head sizes and back to Lancia, early ones use unified threads but have Metric spanner heads. It is a bit of a minefield for the unwary.

On the part in question, if you are making a replacement for a lost item, is there one on the other side of the car you could copy. If you can borrow one, you can use the wire wrap method to match new to old. On a thread that large don't go looking to work to tenths, a half millimetre tolerance on dia,might be close enough! ~Better a bit too small rather than too large.

Good luck and don't forget to charge accordingly, never heard of a poor Bugatti owner.wink

chriStephens

Thread: Every thread form I have ever heard of....
10/09/2014 21:26:20

Another good thread info site is Maryland metrics http://mdmetric.com/thddata.htm

Thread: Jointing compounds
25/08/2014 19:18:58

Thanks for that Michael, I'll do some experiments next time I buy a tube.

chriStephens

25/08/2014 17:19:54

Hi Guys,

Thinking of Hylomar, it can be thinned for application with a brush but for the life of me I can't recall what I was told the solvent is, can anyone help?

chriStephens

Thread: Todays update from Bodgers Lodge
24/08/2014 18:11:19

Hi John,

So that's what easy outs are for, I thought they were hard inserts for plugging holes.

chriStephens

Thread: Carbide insert tools for lathes.
30/07/2014 23:10:49

Hi Neil,

Ever tried a tangential parting tool?

chriStephens

30/07/2014 19:35:58

Hi Howard,

Could you perhaps have meant 30 degrees?

chriStephens

PS "original" is really back in late Victorian times but I understand what you mean.smiley

30/07/2014 19:32:59

Hi Graham,

You can get excellent repeatability with a tangent tool, well I seem to manage to, as sharpening is by jig. Just replace the cutting tool so it has the same height as before. As for your composite material I think that is covered by "people who turn something tough" and "when its use is justified", don't you? Of course you must use your expensive tips, you have no choice, but the OP was only turning easy to machine metals and I suspect a good finish and accurate sizing cuts are important to him, again a good candidate for a tangent tool. For the average Joe, insert tooling is a solution in need of a problem, when a few minutes being shown how to sharpen would be better solution. There are alternatives to indexable tipped tools and at considerable cost savings too.

I turn mostly stainless if I have a choice, time is money as you say, and I can;t be bothered to waste time to make something only for it to start rusting. I have to say though, don't go getting ulcers worrying about saving every last second, relax and smell the roses, works for me!

ATB

chriStephens

30/07/2014 15:27:12

Hi Chris,

Quite frankly if you are only machining those metals you would be better off in the long run, and short come to that, to make yourself a tangential/diamond toolholder. I have been using the same bit of 1/4"x 1,5"HSS for the last 4-5 years and still have about just under an inch left, beat that for value. One little mishap can ruin an edge, or snap a tip, with a tangent tool you probably wouldn't damage it at all, in the same circumstances.

Insert tips are mainly for the overly thick wallet brigade, or people who turn something tough or bulk remove stock, or use CNC machines. Sure I have lots of insert tooling but only use it when it is justified.

Now if you are thinking about boring, that is a whole new ball game, where the very precise geometry of tips can work wonders but at a cost.

Call me jaundiced but been there, done that, and got the collection of blunted tips as souvenirs.cheeky

another chris

Thread: Tilting Table for mill or drill
28/07/2014 01:51:33

Hi Len, they are useful enough but there will be times when you wished they tilted past the 45 degree limit. For such times an adjustable angle plate will fit the bill. If you can only afford one, then go for the angle plate, as it will do everything the tilting table will do and more, though angle setting is marginally less easy as you need a protractor with a spirit level.

chriStephens

Thread: What did you do today? (2014)
20/07/2014 21:18:29

Hi Neil, Bob and others,

"Standard" colour chart, perhaps "similar" might be nearer the phrase, take a look at Acton Bright's list, some colours the same, some are completely different. EN1A the same,green, but EN24T completely different, brown versus blue.

It all depends on where the suppliers get their stock, so best check rather than assume.

chriStephens

Thread: Todays update from Bodgers Lodge
17/07/2014 20:21:55

Hi Guys,

To paraphrase Nelson, "bodges, I see no bodges" , just quality get-customer-out-of-the sh*t repairs using years of hard won skills and intelligence, and without running to the, probably, non existent spares shop. Good on yer, John.

chriStephens

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