24 Sep
2010
24 Sep
'10
10:31 a.m.
It is amazing how many people MISSED THE DAMN POINT.
The original posted "trick" involves a situation where there are *no*
threads left in the wood. By backing the screw out with a little
pressure, eventually the wood will give at the point where the
original threads were, due to how the fibers of the wood remain (not
crushed, but cut). All this happens at a scale pretty much too small
for the unaided eye.
MInd you, the new wood screw will hold, but not well, because there
just is not much good fiber left. This trick does not really work with
metal - no fibers, obviously.
This is *not* the same "everyone knows it" trick about backing out a
screw to find the thread.
--
Will
24 Sep
24 Sep
11:45 a.m.
On Fri, 24 Sep 2010, William Donzelli wrote:
It is amazing how many people MISSED THE DAMN POINT.
. . .
This is *not* the same "everyone knows it" trick about backing out a
screw to find the thread.
Thanks for clarifying! Sorry about the assumption.
I still see them as closely related variants of the same technique - you
are backing out the screw to find the residual remains of the threads.
In automotive work, the competent OR EXPERIENCED wrench knows the
difference between "cutting" v "rethreading"/"restoring"
taps and dies,
for the same reason.
I do know some people who are constantly sharing "great new tips" that
they have just learned, that are usually things that it is hard for me to
imagine anybody not knowing - such as "start the lugnut a few turns onto
the stud before using the power wrench", or "make a small pit or starter
hole before drilling the full size hole", or "don't tighten any of the
bolts all of the way until they are ALL snug". There are some otherwise
sentient people who manage to reach adulthood before learning such things.
Wonko the sane would find that amusing, along with the "wear safety
goggles" boilerplate on the package of a Harbor Freight hose nozzle.
--
Grumpy Ol' Fred cisin at xenosoft.com
2:44 p.m.
I do know some people who are constantly sharing
"great new tips" that
they have just learned, that are usually things that it is hard for me to
imagine anybody not knowing - such as "start the lugnut a few turns onto
the stud before using the power wrench", or "make a small pit or starter
Err, don;t you mean 'Fit the wheel nuts, tighten them evenly, lower the
car to the groudn, and then tighten them in a diagonal pattern to the
torque given in the shop manual'. Yes, I do that _always_.
hole before drilling the full size hole", or
"don't tighten any of the
Use a centre punch. Or a Slocombe drill. And drill a pilot hole. And
rememebr the drill tip angles are different for different materials.
-tony
12:37 p.m.
On 24 Sep 2010 at 13:31, William Donzelli wrote:
MInd you, the new wood screw will hold, but not well,
because there
just is not much good fiber left. This trick does not really work with
metal - no fibers, obviously.
Thank you for clarifying, Will. May I assume that since most plastic
isn't fibrous also, that it wouldn't work (well) on that (the
original topic, after all)?
I have to admit that I'd just carve a wood splint to fit, dip it in
some glue and drive it into the hole, cut it off flush and treat the
situation as if there was no hole to start with.
--Chuck
1:59 p.m.
On 2010 Sep 24, at 12:37 PM, Chuck Guzis wrote:
On 24 Sep 2010 at 13:31, William Donzelli wrote:
I don't know if it is still on the market but there are/were pieces of
thin tin punched with a grid of rough-edge holes available for this.
Cut off a little strip or two and slide down the screw hole to
'recreate' a thread. Instant and quite effective.
MInd you, the new wood screw will hold, but not
well, because there
just is not much good fiber left. This trick does not really work with
metal - no fibers, obviously.
Thank you for clarifying, Will. May I assume that since most plastic
isn't fibrous also, that it wouldn't work (well) on that (the
original topic, after all)?
I have to admit that I'd just carve a wood splint to fit, dip it in
some glue and drive it into the hole, cut it off flush and treat the
situation as if there was no hole to start with.
5204
days inactive
5204
days old
4 comments
5 participants
participants (5)
-
ard＠p850ug1.demon.co.uk -
cclist＠sydex.com -
cisin＠xenosoft.com -
hilpert＠cs.ubc.ca -
wdonzelli＠gmail.com