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This page cover's just a few interesting non model engineering project's that I have done in the past, they have always proven to be a bit of a challenge but also very interesting.
This item Fig1 was an unusual job done some while
ago for a piano restorer who could ago
and are longer than the more normal short adjusters which can be easily
obtained, the screws are used in the piano escapement which in this
particular piano are longer than normal because of the thickness of the
escarpment.I had to first make a bending jig fig2 to shape the eye which
has to be of a set diameter for the special adjusting tool to be used by
the piano tuner, which fits over the loop or eye as it is called by the
tuner. The thread is 2mmx0.4 pitch which is a fairly fine thread.  |
This component was also for a piano
restorer it was unusual in that the thread was .236 diam by 30tpi,at
first I thought it might be metric but no it was imperial size with no
known tap or die,So it had to be machine cut,there were 6 of them so it
was not to bad a job to do. |
 This
was an interesting project for a freind of mine who wanted a tap and die
set making at very very short notice for a scientific component
and asked me to make him a set of 9/16ins x26 tpi, as Tracey Tools did
not have one in stock at the time and it was impossible to obtain them
anywhere else, and he wanted them yesterday ,the picture is the result
of my endeavours it took less than a day and did the job perfectly. Milling
the flutes
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 Milling
out classic car water pump studs, which had broken flush with the
seating face. |
This was a very challenging component to
manufacture and needed an accurate drawing which I duly produced.The
part was a replacement for a damaged high power target Air Rifle Muzzle
brake, I had never herd of muzzle brakes for air rifles as I thought
they were only on fire arms ect.But the chap I made this for said that
they were common in competition air rifle target shooting, and did make
a lot of difference to the accuracy of shot. It has something to do with
the air being pushed by the slug up the barrel which can cause the rifle
to push down the moment the slug leaves the barrel. With a brake on, it
cancels this out and makes the slug travel true to it's target.
 SEE
DRAWING FOR CLEARER VIEW |
Do you ever look in the Pound shop's? I recently came across these
punches as a set, at first I thought they must be of very inferior metal
and no use as punches, and indeed two of them were soft and the other
not as hard enough for use as a punch. Well if you heat them to a red
heat and then quench them in clean cold water, re temper to a deep straw
colour and you will be rewarded with a good set o f
punches, they are made of carbon steel and do harden well, not bad for a
pound! |
