Pedulum action jigsaw, what does it mean/do?

message from usenet on 11 May 2004
A rather naive question but I can't work it out. What does 'pendulum
action' do for one in a jigsaw? My latest jigsaw has switchable
pendulum action but I really can't tell much difference with it on or
off (maybe it's a crap jigsaw).
 
IMM replied to usenet on 11 May 2004
Andy has one and uses it all day long, for the hell of it.
 
Grunff replied to usenet on 11 May 2004
Moves the blade away from the cut on the down (non-cutting) stroke. The
result is less heat and less effort pushing the saw. Without pendulum a
lot of your effort goes into pushing the saw forward on it's non-cutting
stroke, and you get a lot of unnecessary heat.

I find it particularly useful when cutting 3/4" wbp. You won't notice
the difference on soft things linke 1/2" mdf etc.
 
Christian McArdle replied to usenet on 11 May 2004
On mine, it makes it cut faster and with less effort when on a straight
line.

Christian.
 
Dave Plowman replied to usenet on 11 May 2004
There should be a vast difference when cutting something like say 3/4"
chipboard - it will be much faster but less accurate with the pendulum
action on.
 
usenet replied to Dave Plowman on 11 May 2004
I rarely cut anything that heavy with the jigsaw as I have a Skil
Classic circular saw that does all that sort of work. I only use the
jigsaw for non-straight cuts and/or when opening out blind holes (e.g.
putting dry-line boxes in plasterboard). So that's probably why I
haven't noticed any difference.

Why call it 'pendulum' action though, it doesn't seem very
descriptive.
 
Mike Harrison replied to usenet on 11 May 2004
The blade swings backwards and forwards, like, er, a pendulum....
 

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