I've been re-reading some of my old FWW magazines. An issue from 1994
told the readers about the existence of rec.woodworking. A quote from
"...things forbidden on rec.woodworking are off-topic messages (e.g.
On 07/15/2015 01:45 PM, Larry Blanchard wrote:
If I'm envisioning this right, I'd expect he probably used a clamp to
hold the leg in place rather than rely on his hand grip. Still kind of
dicey, but probably safe enough if you took moderate bites...
I've used very similar setups for 40+ yr w/ nary an accident. As
another responder has said for the longer rails I'd almost certainly
also use a clamp rather than just hold them there but I don't find the
method risky at all--you're just cutting a fairly short (1" to 2" at
most) straight cut thru a fairly small piece; a good saw and blade will
hardly know it so there isn't any effort needed...an underpowered saw or
dull blade is something else again, though.
On Wednesday, July 15, 2015 at 8:54:51 PM UTC-5, dpb wrote:
Yep, fence-top guide, plus, I have a similar/wider ply jig that is also guided by a "runner" in the miter slot. ....*for short-lumber tenons.
As John says, for long-lumber tenons, use a bandsaw or hand saw. Can never be too cautious, especially with "awkward" positioned pieces/cutting.
But it _isn't_ awkward when in place, it's simply sticking up vertically
for a single slice cut..."awkward" would be if it had the 'ell' of a
secondary rail/stile attached to make a moment arm or the like but when
it's all vertical, it's simple enough. I wouldn't with a 4x6 6-ft long
(say) owing to weight but a simple rail/stile/leg/apron it's simple and
quick and not unsafe.
The alternatives are certainly ok and if you're uncomfortable with the
setup then by all means use one of them instead...
In my inexpert opinion, we are sometimes seduced by the fact that even
pretty stupid things usually result in no injury. "I know a guy who does
that *all the time*". Human beings aren't always good at evaluating low
probabilities. I try to remember that it's a bad idea to increase your
chance of being hurt, even if the increase might be from 1 in 5000 to 1
in 100. This is especially important when the "1" is a lost finger.
Right but on the other hand, a 1 in 10M chance may be worth it over a
1 in 20M chance if your life is going to be made better (think cancer
and drugs). The difference is a 50% increase in something bad
happening but it's not a 50% chance of something bad happening, as is
often implied by the MSM.
That's a bit of an apples and oranges comparison. The three
ways listed to cut a tenon (table saw, bandsaw, hand saw) are
essentially equivalent, the tenon comes out the same. Given
that, it makes sense to pick the safer one.
No-one who rides a motorcycle would say riding is equivalent
to driving a car.
(rides a Yamaha R1)
But it is in the sense that the outcome is the same, you get to work.
It is not the destination that is at issue, it is the method. If you
insisted on using the safest _possible_ method to make the tenon, you
might have it made using an NC machine with a solid barrier and
significant distance between you and the machine. The outcome would be
the same, you would still have the tenon.
On nice days I sometimes ride my bike to work It's only a couple
kilometers. In the morning it's rush hour, so I use a trail half the
way - at noon the traffic is light so I often use the road all the
way. I see more car accidents than bike accidents - and if I get
killed in a car accident I'm just as dead as on the bike - just die
faster on the bike? Better chance of serious injury on the bike, but
I accept the risk.
Won't ride the bike in the rain or after dark - or on some of the more
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