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Member postings for Ian Abbott

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

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Thread: Massey Ferguson Tractor on front cover of ME 4382
17/07/2010 20:26:29
Chris and Jason get the point.
 
First, the model bit.  ME has always looked to the original as the inspiration and detail for the models.   There are members of this site who build scale model motorcycles, cars and their engines, traction engines, stationary engines and farm machinery.  It’s not size that matters here, but the desire share information and use engineering methods to achieve an end.
 
 Second, all of the machinery exhibited at the South Hams Meet, with the exception probably of my Royal Enfield, have taken their owners thousands of hours work, using exactly the same technology as model engineers to rebuild and remanufacture magnificent pieces of equipment. 
 

Or, could it be that instead of a steam tractor on the front cover, the offence is caused because the editor has chosen one of its humble internal combustion driven brethren.

 

Ian


 
Thread: Continuing Articles
17/07/2010 20:16:36
As far as I can remember, it's been going on for ever, I think that it's usually 'cos the next bit hasn't been written yet.
 
Ian
The infinitely patient.
Thread: Antivirus
17/07/2010 20:12:47
I asked my Macs and they all said, "Yeah, it's an advert, ignore it and it'll go away."
 
Ian 
Thread: Vintage Grayson Lathe
02/07/2010 21:08:27
By the way Ian,
 
Jeff mentions that he spoke to Tony in his original post. 
 
Terry 
 
 
My school reports always said "Ian does not concentrate."   I guess I didn't get any better over the past fifty years.
 
Ian 
01/07/2010 20:32:12
Should'a said this in the last post.
 
I use a Randa Model A long bed, which was also sold as a 3" Grayson.  For a lathe which cost a little over six quid eighty odd years ago, it can still turn out accurate parts.
 
Not sure if it's the same as yours.
 
Ian 
01/07/2010 20:15:45
Go to this site.
 
http://www.lathes.co.uk/page21.html
 
Tony Griffiths seems to know everything about lathes.  This address is for his machine tool listings, just click on Grayson and you get stuff.
 
Ian 
Thread: Myford alternative
24/06/2010 18:39:26
Keep on trying to make cheap lathes look like a Myford instead of actually buying a Myford and there'll be no Myford to be like.  Just like all the other stuff we no longer have, like hardware shops that aren't B&Q.
 
Myford stuff isn't expensive, it's just not crap.  Perhaps read through all the messages from people who bought equipment that doesn't work.
 
Ian 
Thread: Cannon patterns, and Barrell castings
08/06/2010 21:58:35
Does anyone remember when Michael Bentine sailed up the Thames in a Chinese junk and started shelling the Houses of Parliament with a cannon?
A policeman stood on Westminster Bridge, leaning on the rail, watching. 
 
Then there was Spike Milligan and Peter Sellars drove around London in Milligan's drophead VW wearing German helmets and giving the fascist salute to everyone. 
 
Or Bentine in  Messerschmitt bubble car with wings and machine guns, strafing a Routemaster. 
 
Wonder what would happen now.
 
Ian 
Thread: Poor surface finish using Myford
28/05/2010 12:33:01
All of the above, plus...
 
Are you getting juddering or does the cut sound smooth.  If the tool hangs out too far from the holder, it could vibrate or distort.  See if you can feel any backlash in the feed screws, if so, it could be bouncing in and out.   What about tool height, too high/too low.
 
Ian 
Thread: Home Casting in Mazak
14/02/2010 17:52:32
Saw an article on casting with silicone moulds recently, can't remember where though, may haver been ME, but I'm not anxious to to dig in the big cold pile in the utility room for it. Anyone remember seeing it?
 
Ian 
Thread: bonded crankshaft
19/01/2010 19:07:24
If I remember correctly, the release temperature of Loctite is 300°.  Don't know if that's F or C.  Heat to 300 and it falls apart.  This would be important on the inside of an engine, would it not.
 
Ian
18/01/2010 20:15:21
A couple of comments.
 
I've used Loctite in many very high stress situations, but never in what you'd call a reciprocating part such as a crankshaft journal.  Did use the bearing mount on a Perkins V8 diesel crankshaft harmonic balancer / front pulley when the fine splines had worn because the bolts hadn't been tightened at the factory.  I put a sheet of two thou brass shim around the tapered, splined shaft and pressed the pulley on to create a spacer, which was then trimmed to size.  After I'd degreased the parts several times (belt and braces), I used primer and a coat of bearing mount.  I checked the bolts and the pulley for movement every  twenty hours up to a hundred, then figured it wasn't going to come loose.  As far as I know, it's going still.
 
It's common practice to use press fit crankshaft journals on motor cycles, they don't quit, even without Loctite.  Well, maybe not never.
 
I think that the problem comes with multi cylinder crankshafts, when flexing takes place due to the uneven pressures on each journal at differing times.  On older I/C engines such as pre-war (2 that is) cars with three bearing cranks, broken shafts were common, and spectacular sometimes when different bits of the crankshaft did different things, like leaving the crankcase.
 
On some of the Royal Enfield bike crankshafts, the big end journals are threaded on the ends and a very shallow nut lies in a recess on the outside of the crank web keeps the bits out of the way.
 
Ian 
Thread: Woodwork Bandsaw
04/01/2010 19:21:36
How about a pair of stepped v-belt pulleys, same as the bench drill.
 
Ian 
Thread: Grinding hss
30/12/2009 21:14:59
If  you're just touching up drills and lathe tools on the side of a normal grinding wheel, I doubt that you'd wear it enough to need dressing.  I used the same side of one stone for about fifteen years and it didn't look much different to the day I bought it.  If a side does wear, perhaps just flip it and use the other side.
 
On using stones, either side or front, I try to use a different part of the wheel each time, so that it wears sort of evenly, that way I don't waste stone just truing it up all the time.
 
Ian
Thread: That time AGAIN
23/12/2009 15:48:46
Seasons Greetings from sunny? South Devon.
 
Lest we should feel that the weather 'aint too good, my children inform me that on the Western  Prairies in Canada, they have a couple of feet of snow and minus 20.
 
Ian 
Thread: Safety
11/12/2009 20:12:55
Ian's back..... again.
 
Sort of a lesson here.  Story condensed.  After having surgery to remove my sinus cavities and the surrounding bone, I'd come home.  Anyway, I started bleeding heavily from up somewhere behind my eyes, which came out of my nose and mouth.  By the time I arrived in the emergency room, face in a bucket, which is about half an hour at high speed,  I'd lost a litre or so of blood and losing consciousness.  Fortunately, a quick squeeze of large amounts of fluid into an IV, an alert doctor and a week in hospital and some discomfort,  I'm home, with orders to do nothing.  Of course, I'm obeying that one.
 
Anyway, the lesson here.   I've lived my life with a fairly good first aid kit handy at all times, there are fire extinguishers handy in all the right places and I've done the first aid training, CPR, bleeding etc., everything.  Quite complacent, I was.
 
None of this helped one little bit.  If you can't reach the spurting artery, it don't stop.  If I'd have been in a workshop and something had caused an accident with similar bleeding, such as a flying object in the face, and no one to help, I'd be a gonner.  Fortunately wife and neighbour were handy.
 
I have now completely revised my first aid assumptions. 
 
A much chastened
Ian 
Thread: small carburettors
10/12/2009 20:33:50
There's some interesting stuff out there, here's a few starters.
(Last post should have read "in" Audels) 
 
http://www.youtube.com/watch?v=KwH5_jKTKd8
 
http://keelynet.com/energy/gunnhist.htm 
 
http://www.wikipatents.com/4030457.html 
 
This last one are US Patent details for a surface carb plus some other related stuff such as fuel injection.
 
Ian 
10/12/2009 20:19:59
A couple of ideas,
 
How about a surface vapour carb, simple to make.  There's one on my 1917 Audel's, but it's buried right now.  I'll see if I can find it next time I go digging.  A search on the web might turn one up and I think that I remember one in ME a while ago.
 
Or, a diaphragm control, like on chainsaws and such.  Might be a challenge to get right, but when it's done it could be a standard for others.
 
Ian 
Thread: Safety
30/11/2009 17:09:31
You forgot about chasing mercury around the science room bench, into the sink and then watching as it passed through the lead pipe back into our hands.
 
Oh and the lead cold water pipes that we all drank from. 
 
And sucking chunks of ice from puddles in the street. 
 
Ian 
29/11/2009 21:39:35
Hey, back from a few days holiday at the Hotel NHS.  The food was quite good though.
 
So, when I was smaller than I am now, explosives were a part of normal life.  Blowing holes in the Scout Hut walls passed for an evenings entertainment, right along with putting the Scoutmaster's big bike saddlebag under the downspout. 
No, that can't be right, it never rained when I was a child.....  
Shotgun and rifle shooting were normal among us too.  Unexploded ordnance from WWII was lying around most people's gardens, the incendiaries were especially enjoyable. 
 
Both my daughters and my son learned firearms handling, (in Canada) and my son went with me on pyrotechnics certification courses for theatre effects. Explosives were handy, what with blowing up beaver dams as well.  
 
Now however, even mentioning explosives will end up with a visit from the nice young men in body armour and carrying automatic weapons. We did have a helicopter hovering overhead during breakfast a couple of weeks ago, while two of the nice young men surrounded us.  Apparently, a nearby farm had been burgled and among the loot was a shotgun, hence the irrational panic.  Of course, the thieves had been out of the county for several hours.
 
Right, Grandpa is getting tired, it's bedtime.
 
Ian 
 
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