The Craftmans Shop > New from Old
Dormer 108 Drill Grinder Resurrection
awemawson:
A little bit of progress:
I put a plug on the three phase motor and proved that it did at least work, as that's rather fundamental to this machine. Then I found a diamond wheel dresser and installed it in the swing across dresser holder, and dressed the considerable dishing from the wheel periphery.
So now having decided it was worth carrying on restoring the machine, I started the de-rusting process. I removed the square bar that holds a sliding double ended centre. One end is male, and the other female. They were too rusted to dismantle without doing further damage, so they got dunked in the ubiquitous citric acid bath to clean up. Whilst this was happening I removed the quadrant that is used to set the drill point angle, and that also went in with the other bits.
awemawson:
A couple of hours later they came out like this
awemawson:
This let me start to dismantle the square bar assembly without damaging things - it came apart easily except for the male / female centre.
Soaking with 'Plus Gas' followed by thumping with a block of lead eventually released it. Obviously the female centre has vanishingly thin edges and the male has a similarly delicate point, so it could only be thumped with something soft. It did come out, the only damage being to my thumb that leaked an enormous amount of blood :bugeye:
awemawson:
Quite happy with progress as everything else is just cosmetic.
Turns out that there is a firm still stocking some spares for this machine. I thing that I needed was a 'drill protrusion gauge' - only a little rule giving the amount that a drill has to protrude from the holder to get the correct geometry - simple but essential so I've ordered one.
They also had a reasonable copy of the manual. Although I had one with the machine, mine was a photocopy of a photocopy made on a wet day in the middle of a flood, and not much was legible, whereas their one had been cleaned up and re-typed by a nice girl call Claire who had not only photoshopped the parts drawing, but also let me chat her up into discounting their price from atrocious, down to just about manageable :lol:
lordedmond:
Andrew
You smooth talking devil
We should have a section headed Andrews Resurections
Or maybe more apt Silk Purses From Sows Ears
Nice work and well documented
Stuart
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