Hi Mike,
In each case the drill is broken off below the surface and they are
2mm drills, so are quite small. I tried to do the Alum method
advised by an earlier reply. Unfortunately, in the UK, Alum is no
longer readily obtainable "at the local pharmacist". In fact "Boots" -
the countries biggest chemist - is 'out of stock'. I was able to
find an industrial supplier who eventually came back and said they
would supply a minimum of 1Kilo (2.25 lbs) for ?50 ($75) which seems
a bit drastic for the sake of three small broken bits!
My 2nd question is this. There is Chris's terrific 'Little Machine
Shop' in the US - is there anyone in the UK who keeps a similar
supply of 7x12 parts? Chronos have a few items that fit our machines
but nobody, on line, seems to supply a full range of spare parts??
Machine Mart stock parts but you can't order them on line and they
don't keep them 'in store'.
I have a broken cross slide nut (:o( and think while I am it I will
get a few spares of other things (belts fuses gib strips etc) as they
normally go when you need them most.
Regards
Ken
--- In 7x12minilathe@y..., "walsh2002bc" <me.walsh@s...> wrote:
Hi Ken:
I hate it when that happens...I find that deeper holes in aluminum
need to be cleaned out more so they won't bind 'cause it's gummy
stuff. Try putting the workpiece in a vise and tapping the bit
with
a hammer and small drift. Sometimes just working it in different
directions will loosen it off.
mike
--- In 7x12minilathe@y..., "Capt Ken Appleby" <captkenn@m...> wrote:
Hi,
This might sound a bit basic but it has stumped me! While
drilling
on
my lathe, I have broken two 2mm drills in two separate holes in a
steam engine alluminium casting. They have both broken off flush
so
there is nothing to get hold of and there is not a lot of space
around them. I have thought of over-drilling the whole lot out
(if
I
can) and making a screw-in plug and milling it flush.
Is the casting a write-off - Or is there another way?
All help appreciated
Regards
Ken
