On 12.10.12 22:58, Peter Loron wrote:
> I watched the linked video. Can somebody comment on why you would use
> a shaper for that work instead of a mill or surface grinder? I'm
> trying to understand the purpose of a shaper.
Most of the greybeards could comment, I'm certain. Here's one offering:
a) It's what we had back then. When I started in Tech School, nearly half a
century ago, we had about a dozen lathes of various sizes, a
drillpress or two, and two shapers. No mills. There was no call to be
trained in their use, since no-one else in the region had one.
b) You can make your own tooling, because it's single point, just like
on the lathe. You can even share a tool if desperate. No downtime if
you're out the back o' Burke, and a tool snaps or is just blunt.
Spend a minute and a half with the grinder, and carry on.
c) If anyone in the state had a mill, it was probably a horizontal mill.
Making short dovetails, for example, is still quicker and easier on a
shaper than on a horizontal mill, I reckon, especially when you have
to make the cutter first, 'coz there are none in town, the job needs
to be done by Friday, and today is Friday.
Milling cutters were gold back then, and probably all imported here in
Australia. If the distributor didn't have stock, replacement might take
half a year, and a couple of weeks if he did. (Like Landrover parts,
back then.)
We'd run them much faster than the video, at least on short strokes.
If I had the room, I'd provide a home for something like the lovely
Elliot I used as a kid. Hmmm ... could make the room.
Erik
--
Habit is habit, and not to be flung out of the window by any man, but
coaxed down-stairs a step at a time.
- Mark Twain, "Pudd'nhead Wilson's Calendar
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