Re: [CAD_CAM_EDM_DRO] Down feed on drill presses?

In a message dated 31-Jul-02 18:00:05 Central Daylight Time,
johnhe-uk@... writes:

> The major fault on it which makes it annoying to use is the down feed on it
> has lost it's spring and no longer returns when you let go of the handle.
> How is it arranged inside? Is there just a spring that pushing the quill
> back up?
>
>

Dunno about UK drill-presses, but assuming they are basically the same "as
here": There is a helical flat spring wound around the axle on one end or
the other that the hand-lever (crank) rotates. If the tip (usually with a
hole or bent "tab" on the end, for fastening to the shaft) breaks off from
years of flexing, it will make a most vulgar and frightening sound when the
coiled-up spring "relaxes"! It can also modify your dentures and facial
bones if you "don't know whatchur a-doin' " when you attempt to dismantle
these parts!

Lotsa luck! Jan Rowland, aka Yank Troll


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