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Member postings for Eric Cox

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

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Thread: Small Miller
06/10/2010 09:54:04
SPG Tools are listed at Companies House as SPG (Hinckley) Ltd.
Their address is 
 S.P.G. (HINCKLEY) LIMITED
WINDY RIDGE COTTAGE
COVENTRY ROAD
HINCKLEY
LEIC
LE10 0DL
 
 
 

Thread: Rear mounted tool post
01/10/2010 15:26:48
Personally I can't see the difference, one is just an inverted image of the other. How many of you have experience the tool digging in and alleviated the problem by using the rear mounted tool post.or is it just apocryphal ?
01/10/2010 13:50:12
What is the advantage of a rear mounted tool post for parting off as opposed to using the standard tool post
Thread: Sterling engine piston matl.
22/08/2010 10:38:30
"but the engine would be a Stirling engine, unless of course it is made from an alloy of 92.5% silver."
 
So what would it be if it was made from an alloy of  92.5% silver ?
21/08/2010 15:24:21
Oh yes the cat, feeling strained 
21/08/2010 15:23:09
  unfortunately the wire wool just wrapped around the shaft with no disc. consequently the wool had a tendency to remain static and not move with the shaft. I was wondering if a small piston could be made out of Fimo or similar material. Not metal as I've not got my lathe yet.
21/08/2010 10:39:07
I recently started to put together a Sterling engine kit I received last Christmas. The displacement piston was made by wrapping a fine metal mesh around a wire frame. unfortunately my cat decided to see if it was edible. I contacted the supplier for a replacement and received a pad of wire wool that turned out to be too flimsy to form a piston. Any ideas on what material I could use.  
Thread: Bead/shot blasting.
07/08/2010 10:24:11
As you're only going to use it for cleaning up your traction engine wouldn't it make sense to take the parts to a shot blast company.
Thread: Centre drill misalignment
04/08/2010 10:06:04
You say that the centre drill ran off, maybe the centre pop wasn't big enough. You would give the centre punch a light tap to mark the metal, check to see if it's in the right place then if it is, give the punch a damn good hit to enforce the centre pop.
Thread: Tich drawings.
16/07/2010 08:25:56
Any comments.
12/07/2010 09:22:39
Should the threads on the Pump wrist pin be 7/64" and not 7/32" as shown
 
 Is there any reason for the passageways on the pump body and bottom union to be reamed 1/8" whilst in the top union it is drilled No.40 and what is the diameter of the horizontal passageway in the top union
 
 A request, can small components be drawn 2 or 3 times full size for the sake of clarity.
Thread: Rustless steel
05/07/2010 09:39:13
In numerous articles in ME, reference is made to rustless steel. Is this an archaic/alternative name for stainless steel as I had never come across it till I started reading ME.
Thread: Micrometer ratchet stop
30/06/2010 08:36:56
The cost of the spares may work out more than a second hand mic. of e-bay, about £10.
 
As for calibrating, ensure the anvil faces are clean, close the mic. up and see if the zero is lined up, check alignment again at 1.00" (assuming it's a 0-1" mic.) using a 1" slip gauge.
If there is a discrepancy, the barrel can be rotated. On the back of the barrel opposite zero on the vernier scale is a small hole. Using the "C" spanner, if you've still got it, rotate the barrel to align the vernier scale. 
Thread: Rack locomotive of 1812
15/06/2010 09:49:45
Another anomaly shows the pins on the track at 15.52mm but the text states 16.00mm.
Which is correct.
Thread: Countersinking - guidance please...?
07/06/2010 09:37:29
The idea of the counter sink is to bring the screw head flush with the parent metal. Does it matter what the finish is like?.
Thread: Conversion factor
03/06/2010 09:22:31
Thanks Kwil, that's all I wanted to know.
02/06/2010 14:16:58
Thanks for the replies. No, the answer isn't obvious otherwise I wouldn't have asked.
Let me put it like this. A full size loco has a driving wheel of 4' 6" Dia. I wish to make a 31/2" gauge model, How do I convert from full size to 31/2" size.
Is 31/2" the gauge of the track or is it 31/2" to the foot.
02/06/2010 09:44:01
Can you tell me the conversion factors required to scale down from full size to scale size.
 
 Cheers Eric
Thread: Subscription offer
17/05/2010 09:23:41
In the latest edition of ME 4377 there is a leaflet offering a Rotary tool kit when you subscribe.
Does this apply to a ME subscription or just to Model Boats.?
Thread: Silver solder or braze ?
13/05/2010 09:40:14
Thanks for all your comments. The reason I asked was because I had only used silver solder when making jewelry at school and brazing when I was working in the engineering industry.
I was looking at it from a familiarity point of view (more brazing than silver soldering) and from cost.
 
 Cheers Eric 
<< First < Prev 21 22 23 24 25 26 27 28 Next > Last >>
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