uj

unclescrooge

02/07/2008 5:17 AM

a relatively dumb question i'm sure...

hi,

i've been trying to do more with woodworking than simple home repairs
and i've seen the term used quite a bit and while i have an idea what
it is, i'm not 100% sure how to use it.

it's a jig. i have an idea that this is similar to a template but i
cannot seem to find any sites that explain what jigs are and how they
work so that i can fully understand.

yes...i know it's stupid for me to think this way but i can't figure
out why someone would spend a chunk of time making a jig to drill a
hole, for instance.

please pardon my ignorance...i really want to learn. oh and my first
real project? building a headboard for my queensize bed.

thanks!
john


This topic has 32 replies

md

mac davis

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 7:33 AM

On Wed, 2 Jul 2008 05:17:20 -0700 (PDT), unclescrooge <[email protected]>
wrote:

>yes...i know it's stupid for me to think this way but i can't figure
>out why someone would spend a chunk of time making a jig to drill a
>hole, for instance.

An example would be to drill holes in several pieces, quickly and accurately..

I use a simple jig for my biscuit jointer when I do things like drawer sides,
etc.. Just makes it easier and faster than measuring, marking and lining up each
slot..

"Jig" one of those words like "love", that mean different things to different
folks..
Some consider a temporary fence on a band saw a jig, some don't..

I consider the pocket hole guides to be jigs, so I guess being built in your
shop isn't required to qualify for the title jig?

If all else fails, it's a dance you do in a Irish pub after several adult
beverages..


mac

Please remove splinters before emailing

md

mac davis

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 7:58 AM

On Thu, 03 Jul 2008 01:03:03 GMT, [email protected] (Scott Lurndal) wrote:

>unclescrooge <[email protected]> writes:
>
>>yes...i know it's stupid for me to think this way but i can't figure
>>out why someone would spend a chunk of time making a jig to drill a
>>hole, for instance.
>>
>
>For one hole, no jig necessary. for 100 holes, a jig makes sense.
>
>scott

I built a TS jig last week to cut slots in the end of four 3/4" dowels..

I figured that it was more efficient to drill 4 holes in a 2x4 scrap than risk
cutting fingers off..
One pass through the saw and the dowels were nicely cut and the 2x4 was in the
firewood pile..


mac

Please remove splinters before emailing

md

mac davis

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 5:33 PM

On Wed, 2 Jul 2008 16:27:58 -0700 (PDT), Tom Watson <[email protected]>
wrote:

>There are three fairly closely related terms involved and I'm going to
>give you my understanding of what they mean. This in no way attempts
>to define each of the items - this is simply how I use the terms.
>
>A TEMPLATE is made of an item whose shape needs to be transferred to
>another place for cutting. Think of a sink TEMPLATE. It is usually a
>one off.
>
>A JIG is a short term FIXTURE that allows you to repeat things like
>cuts and drilling points. A JIG is not made as well as a FIXTURE
>because it is specific to the current job, rather than being something
>that is relevant to many different jobs.
>
>A FIXTURE is a JIG that can be used over multiple jobs. An example of
>a FIXTURE would be one that gave you a PATTERN for how to drill
>cabinet doors a certain distance from the top and the bottom, and a
>certain distance in from the edge. In my usage of the term it would
>also clamp you in so that your drilling would be more accurate.
>
>All FIXTURES are JIGS but not all JIGS are FIXTURES.

And some fixtures turn water on and off...
Turn the wrong one in the shower, and you dance a jig..

Sorry Tom, couldn't help it.. lol


mac

Please remove splinters before emailing

an

alexy

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 9:01 AM

LRod <[email protected]> wrote:

>On Wed, 2 Jul 2008 05:17:20 -0700 (PDT), unclescrooge
><[email protected]> wrote:
>
>>it's a jig. i have an idea that this is similar to a template but i
>>cannot seem to find any sites that explain what jigs are and how they
>>work so that i can fully understand.
>
>Actually more similar to a fixture, but to the average wooddorker,
>jig, fixture, and template all have blurred definitions. I'm not
>exactly clear myself on the difference, although it's been explained
>to me several times,

I don't know anyone who makes the distinction, but according to Ken
Vaughn's site, "A jig guides the tool to the work, for example, a
dovetail jig. A fixture guides the work to the tool, for example, a
table saw sled. Most woodworkers make no such distinction and call
everything a jig, and so do I."
--
Alex -- Replace "nospam" with "mail" to reply by email. Checked infrequently.

RC

Robatoy

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 8:29 AM

On Jul 2, 10:15=A0am, dpb <[email protected]> wrote:
> unclescrooge wrote:
>
> ...
>
> > it's a jig. i have an idea that this is similar to a template but i
> > cannot seem to find any sites that explain what jigs are and how they
> > work so that i can fully understand.
>
> ...
>
> Actually, it's that little hop-step dance one does around the shop after
> hitting the thumb. =A0Sometimes accompanied by loud noises...
>
Loud noises and softly spoken remarks such as: " I must learn to be
more careful next time I use a hammer."

cc

charlieb

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 6:10 PM

To muddy the waters a bit, and maybe anticipate your next question, try
this page

http://www.woodworkinghistory.com/glossary_J_jig.htm

You can go up to the "Glossary" area of this page and read about
"patterns", "fixtures", "templates" and so on.

charlie b

Pp

Puckdropper

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 9:44 AM

Peter Huebner <[email protected]> wrote in
news:[email protected]:

*snip*

>
> And to make runs of items:
> Chair making. You usually don't make one chair. You might want
> to make a set of 6. So you make one jig for a certain piece or
> joint, then use that to make [bits for] 6 identical chairs with
> a lot more accuracy and considerable time savings, because you
> don't have to mark and measure each individual piece (twice at
> least- remember: measure twice, cut once). So ...
>
> -P.
>

Does it matter which order you do the measuring and cutting in? I like to
measure, cut, and measure again... That's how to do it, right?

Puckdropper
--
If you're quiet, your teeth never touch your ankles.

To email me directly, send a message to puckdropper (at) fastmail.fm

Lr

"Leon"

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 7:22 AM


"unclescrooge" <[email protected]> wrote in message
news:a1f7b9e6-8a27-4b32-9ad6-0fd72dbc6f4f@l64g2000hse.googlegroups.com...
> hi,
>
> i've been trying to do more with woodworking than simple home repairs
> and i've seen the term used quite a bit and while i have an idea what
> it is, i'm not 100% sure how to use it.
>
> it's a jig. i have an idea that this is similar to a template but i
> cannot seem to find any sites that explain what jigs are and how they
> work so that i can fully understand.
>
> yes...i know it's stupid for me to think this way but i can't figure
> out why someone would spend a chunk of time making a jig to drill a
> hole, for instance.
>
> please pardon my ignorance...i really want to learn. oh and my first
> real project? building a headboard for my queensize bed.
>
> thanks!
> john


1.. A device for guiding a tool or for holding machine work in place.
A jig is basically a generic name for the above that has a specific
function.


Rr

RicodJour

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 5:36 AM

On Jul 2, 8:17 am, unclescrooge <[email protected]> wrote:
> hi,
>
> i've been trying to do more with woodworking than simple home repairs
> and i've seen the term used quite a bit and while i have an idea what
> it is, i'm not 100% sure how to use it.
>
> it's a jig. i have an idea that this is similar to a template but i
> cannot seem to find any sites that explain what jigs are and how they
> work so that i can fully understand.
>
> yes...i know it's stupid for me to think this way but i can't figure
> out why someone would spend a chunk of time making a jig to drill a
> hole, for instance.

To make the operation safer, less likely to damage the workpiece,
faster, and repeatable with precision.

If you're installing pulls on a kitchen-full of cabinets, making a jig
might take you five minutes and save you twenty in installation time
in addition to the other benefits listed above. Next job, there's no
jig-making time - it's all pure time profit. That's why you'll see
walls full of hanging jigs and templates in a woodworking shop.

R

uj

unclescrooge

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 11:52 AM

On Jul 2, 6:31=A0pm, Tanus <[email protected]> wrote:
> unclescrooge wrote:
>
> > "it's an entirely different thing all together" "but quit calling me
> > shirley" (Airplane quotes)
>
> > anyhow...kvaughan's site does help clear it up somewhat. i guess that
> > i get thrown by the design of some of them that i see on tv or on mr
> > vaughan's site. for instance that large sled for his table saw. i
> > don't see how you could set a large piece of wood on that thing and
> > not cut this jig in half with the woodstock.
>
> > i see the cut on the far side of this jig where he's already pushed
> > too far once and knicked it pretty good.
>
> > i'm sorry...i must sound like an idiot. let me explain...i don't see a
> > corresponding cut on the near side (what i gather is the pushing side)
> > so i can't see how this would allow you to cut the piece completely.
> > it would seem that the cut would leave 1/4-1/2 inch still attached
> > unless there is a matching cut on the near side that this camera shot
> > does not show.
>
> >http://home.comcast.net/~kvaughn65/big_sled.jpg
>
> > invariably...i get things by watching someone do them and i then i
> > replicate it. but this is throwing me..and the reason i'm asking about
> > this is that the headboard plan my friend's uncle gave me calls for a
> > jig that i don't have and i can't see how to make it to make the holes
> > to hold the cutouts on the receiving posts (i think that's called
> > mortise and tenons??)....if so..there is one jig for the mortise and
> > one for the tenons and i have no plans nor can find any online to do
> > this.
>
> Hi Scrooge,
>
> You've had a lot of explanations as to what people think jigs are. I
> think you're getting the general idea.
>
> I don't know how complex the headboard is that you're planning on, but
> it sounds like it has more than just a simple construction to it.
>
> I started out a few years ago with some ideas of what I wanted to build,
> and how quickly I wanted to get there. I am, like you, an amateur with
> no formal training. I like it that way but it has its disadvantages. For
> one thing, things that look simple, invariably aren't.
>
> I learn something new each project I tackle. One of the first things I
> learned was that early one, complex projects were a good way to ruin
> some good wood and frustrate me to the point where I didn't want this
> hobby any more. Learning, and accepting, what my talents _could_ do was
> likely the most important lesson. I havne't thrown a hammer at a project
> in a long time because of that lesson.
>
> What I'm getting at is that it's a good plan to start small, gather some
> skills together and use them to grow in project size/ complexity. Take a
> long look at your headboard and ask yourself if the complexity is a bit
> daunting. If not, go for it, but if it is, try something smaller first.
> Plenty of plans on the Web for smaller projects. Hell, even a birdhouse
> demands a few skills that are easily developed and never
> forgotten.....food for thought.
>
> Tanus- Hide quoted text -
>
> - Show quoted text -

this helped quite a bit. the headboard doesn't sound that complex.
it's two posts that need mortises to attach to the metal frame and
then some 1x6's that span the mattress and connect the two posts.

if i had a better set of power tools, this might be easier but the
jigs required are for the mortises for the bedframe connector and the
1xt6's connecting the two posts. all of this is going to be made with
mesquite i decided. a friend has a tree in his backyard that he's
wanting to remove. i can cut it down the rough it out...but i'll need
to get a friend to let me borrow the use of planer/joiner to cut these
boards down to size.

this is do-able right?

ML

Maxwell Lol

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 9:36 AM

unclescrooge <[email protected]> writes:

> yes...i know it's stupid for me to think this way but i can't figure
> out why someone would spend a chunk of time making a jig to drill a
> hole, for instance.


Well, suppose you have to make sure the hole is exactly perpendicular.
If you had to drill two holes, and use a dowel with glue to connect
them (a dowel joint).

If those holes aren't perpendicular, you cannot get two pieces of wood
to join together.


If you tried using a hand-held drill to do this, you have to be very careful.
It's possible, but errors are likely.

I have a $10 tool I used to drill perpendicular holes. If you have a
drill press, or you can accurately make a jig ( a block of wood with a
hole drilled at 90 degrees), then you can also make sure your holes
will be accurate.

It's really a matter of reducing errors when doing repetitious actions
by spending a little more timme up front.

If you have to do a step 10 times, and you can same time, reduce
error, and reduce aggrevation by preparation beforehand, then you make
a jig.

PH

Peter Huebner

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 2:55 AM

In article <a1f7b9e6-8a27-4b32-9ad6-
[email protected]>,
[email protected] says...
>
> yes...i know it's stupid for me to think this way but i can't figure
> out why someone would spend a chunk of time making a jig to drill a
> hole, for instance.

Well, that's been covered a lot by others.

Jigs are also used for very large items. Laying out the pieces
for roof trusses: So they all come out identical, and nobody
needs to check the angles: you cut all the bits to length, put
them on the jig where they are held in place by delimiters and
whack your nailplates on. That's one production line example;
in fact I've built jigs like that on a couple of building sites
myself.

And to make runs of items:
Chair making. You usually don't make one chair. You might want
to make a set of 6. So you make one jig for a certain piece or
joint, then use that to make [bits for] 6 identical chairs with
a lot more accuracy and considerable time savings, because you
don't have to mark and measure each individual piece (twice at
least- remember: measure twice, cut once). So ...

-P.

--
=========================================
firstname dot lastname at gmail fullstop com

PH

Peter Huebner

in reply to unclescrooge on 02/07/2008 5:17 AM

04/07/2008 3:15 AM

In article <[email protected]>,
[email protected] says...
>
> I think the proper order is:
> measure
> measure again
> cut
> measure/fit
> cuss on the way to the lumber yard..
>

Even just all the way to the lumber rack is bad enough.

Heh. -P.

--
=========================================
firstname dot lastname at gmail fullstop com

uj

unclescrooge

in reply to unclescrooge on 02/07/2008 5:17 AM

04/07/2008 6:41 AM

On Jul 3, 8:40=A0pm, mac davis <[email protected]> wrote:
> On Thu, 3 Jul 2008 11:52:42 -0700 (PDT), unclescrooge <johnchamp...@gmail=
.com>
> wrote:
>
> >this helped quite a bit. the headboard doesn't sound that complex.
> >it's two posts that need mortises to attach to the metal frame and
> >then some 1x6's that span the mattress and connect the two posts.
>
> >if i had a better set of power tools, this might be easier but the
> >jigs required are for the mortises for the bedframe connector and the
> >1xt6's connecting the two posts. all of this is going to be made with
> >mesquite i decided. a friend has a tree in his backyard that he's
> >wanting to remove. i can cut it down the rough it out...but i'll need
> >to get a friend to let me borrow the use of planer/joiner to cut these
> >boards down to size.
>
> >this is do-able right?
>
> Do-able, yes..
> easy, no..
>
> With proper stacking, green lumber dries at the rate of about 1 year per =
inch of
> thickness..
> Hope you don't need that bed soon.. lol
>
> Maybe you should buy the lumber and a mini lathe and turn the mesquite wh=
ile
> it's green..
>
> mac
>
> Please remove splinters before emailing

holy cow...i didn't know that. i guess i'll still take the tree to
learn with. mesquite is a very hard wood. it has a wonderful look
though and it's readily available here in s. texas.

well i guess i'll go down to the lumber store tomorrow to price the
wood.

thank you guys for your help and input!

uj

unclescrooge

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 2:40 PM

On Jul 2, 9:15=A0am, dpb <[email protected]> wrote:
> unclescrooge wrote:
>
> ...
>
> > it's a jig. i have an idea that this is similar to a template but i
> > cannot seem to find any sites that explain what jigs are and how they
> > work so that i can fully understand.
>
> ...
>
> Actually, it's that little hop-step dance one does around the shop after
> hitting the thumb. =A0Sometimes accompanied by loud noises...
>
> jig
> 1.a. Any of various lively dances in triple time.
>
> :)
>
> --

"it's an entirely different thing all together" "but quit calling me
shirley" (Airplane quotes)

anyhow...kvaughan's site does help clear it up somewhat. i guess that
i get thrown by the design of some of them that i see on tv or on mr
vaughan's site. for instance that large sled for his table saw. i
don't see how you could set a large piece of wood on that thing and
not cut this jig in half with the woodstock.

i see the cut on the far side of this jig where he's already pushed
too far once and knicked it pretty good.

i'm sorry...i must sound like an idiot. let me explain...i don't see a
corresponding cut on the near side (what i gather is the pushing side)
so i can't see how this would allow you to cut the piece completely.
it would seem that the cut would leave 1/4-1/2 inch still attached
unless there is a matching cut on the near side that this camera shot
does not show.

http://home.comcast.net/~kvaughn65/big_sled.jpg

invariably...i get things by watching someone do them and i then i
replicate it. but this is throwing me..and the reason i'm asking about
this is that the headboard plan my friend's uncle gave me calls for a
jig that i don't have and i can't see how to make it to make the holes
to hold the cutouts on the receiving posts (i think that's called
mortise and tenons??)....if so..there is one jig for the mortise and
one for the tenons and i have no plans nor can find any online to do
this.

RC

Robatoy

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 6:11 PM

On Jul 2, 7:27=A0pm, Tom Watson <[email protected]> wrote:
> On Jul 2, 8:17=A0am, unclescrooge <[email protected]> wrote:
>
>
>
> > hi,
>
> > i've been trying to do more with woodworking than simple home repairs
> > and i've seen the term used quite a bit and while i have an idea what
> > it is, i'm not 100% sure how to use it.
>
> > it's a jig. i have an idea that this is similar to a template but i
> > cannot seem to find any sites that explain what jigs are and how they
> > work so that i can fully understand.
>
> > yes...i know it's stupid for me to think this way but i can't figure
> > out why someone would spend a chunk of time making a jig to drill a
> > hole, for instance.
>
> > please pardon my ignorance...i really want to learn. oh and my first
> > real project? building a headboard for my queensize bed.
>
> > thanks!
> > john
>
> There are three fairly closely related terms involved and I'm going to
> give you my understanding of what they mean. =A0This in no way attempts
> to define each of the items - this is simply how I use the terms.
>
> A TEMPLATE is made of an item whose shape needs to be transferred to
> another place for cutting. =A0Think of a sink TEMPLATE. =A0It is usually a=

> one off.
>
> A JIG is a short term FIXTURE that allows you to repeat things like
> cuts and drilling points. =A0A JIG is not made as well as a FIXTURE
> because it is specific to the current job, rather than being something
> that is relevant to many different jobs.
>
> A FIXTURE is a JIG that can be used over multiple jobs. =A0An example of
> a FIXTURE would be one that gave you a PATTERN =A0for how to drill
> cabinet doors a certain distance from the top and the bottom, and a
> certain distance in from the edge. =A0In my usage of the term it would
> also clamp you in so that your drilling would be more accurate.
>
> All FIXTURES are JIGS but not all JIGS are FIXTURES.

Can one make a fixture with a JIGsaw?

md

mac davis

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 6:40 PM

On Thu, 3 Jul 2008 11:52:42 -0700 (PDT), unclescrooge <[email protected]>
wrote:


>this helped quite a bit. the headboard doesn't sound that complex.
>it's two posts that need mortises to attach to the metal frame and
>then some 1x6's that span the mattress and connect the two posts.
>
>if i had a better set of power tools, this might be easier but the
>jigs required are for the mortises for the bedframe connector and the
>1xt6's connecting the two posts. all of this is going to be made with
>mesquite i decided. a friend has a tree in his backyard that he's
>wanting to remove. i can cut it down the rough it out...but i'll need
>to get a friend to let me borrow the use of planer/joiner to cut these
>boards down to size.
>
>this is do-able right?

Do-able, yes..
easy, no..

With proper stacking, green lumber dries at the rate of about 1 year per inch of
thickness..
Hope you don't need that bed soon.. lol

Maybe you should buy the lumber and a mini lathe and turn the mesquite while
it's green..


mac

Please remove splinters before emailing

md

mac davis

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 7:55 AM

On 03 Jul 2008 09:44:42 GMT, Puckdropper <puckdropper(at)yahoo(dot)com> wrote:

>Peter Huebner <[email protected]> wrote in
>news:[email protected]:
>
>*snip*
>
>>
>> And to make runs of items:
>> Chair making. You usually don't make one chair. You might want
>> to make a set of 6. So you make one jig for a certain piece or
>> joint, then use that to make [bits for] 6 identical chairs with
>> a lot more accuracy and considerable time savings, because you
>> don't have to mark and measure each individual piece (twice at
>> least- remember: measure twice, cut once). So ...
>>
>> -P.
>>
>
>Does it matter which order you do the measuring and cutting in? I like to
>measure, cut, and measure again... That's how to do it, right?
>
>Puckdropper

I think the proper order is:
measure
measure again
cut
measure/fit
cuss on the way to the lumber yard..


mac

Please remove splinters before emailing

sS

[email protected] (Scott Lurndal)

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 1:03 AM

unclescrooge <[email protected]> writes:

>yes...i know it's stupid for me to think this way but i can't figure
>out why someone would spend a chunk of time making a jig to drill a
>hole, for instance.
>

For one hole, no jig necessary. for 100 holes, a jig makes sense.

scott

hf

hex

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 6:36 AM

On Jul 2, 9:00 am, "Lee Michaels" <[email protected]> wrote:
> "unclescrooge" <[email protected]> wrote in message
>
> news:a1f7b9e6-8a27-4b32-9ad6-0fd72dbc6f4f@l64g2000hse.googlegroups.com...
>
> > hi,
>
> > i've been trying to do more with woodworking than simple home repairs
> > and i've seen the term used quite a bit and while i have an idea what
> > it is, i'm not 100% sure how to use it.
>
> > it's a jig. i have an idea that this is similar to a template but i
> > cannot seem to find any sites that explain what jigs are and how they
> > work so that i can fully understand.
>
> > yes...i know it's stupid for me to think this way but i can't figure
> > out why someone would spend a chunk of time making a jig to drill a
> > hole, for instance.
>
> > please pardon my ignorance...i really want to learn. oh and my first
> > real project? building a headboard for my queensize bed.
>
> Short answer, just go into any good woodworkers shop.
>
> The jigs are what is hanging all over the place from the walls, ceilings and
> any other usable storage space.
>
> If you are going to do anything simple, you probably could get by without
> building a jig. Anything complicated or repetitous, can be greatly enhanced
> with jigs. Gutair makers, for instance, use lots of jigs. They spend an
> enormous amount of time building those jigs. But it would be almost
> impossible to build a gutair without them.


And bringing in luthiers, you just added the concept of a "form" --
which would be a jig for no tools (unless your count clamps)? or would
that be a fixture for a tool known as a bench?
So to completely de-rail the conversation: are benches and clamps
tools? If so then is a form a fixture or a jig?

Semantics are silly.

hex
-30-

LA

Limp Arbor

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 11:07 AM

On Jul 2, 8:17=A0am, unclescrooge <[email protected]> wrote:
> hi,
>
> i've been trying to do more with woodworking than simple home repairs
> and i've seen the term used quite a bit and while i have an idea what
> it is, i'm not 100% sure how to use it.
>
> it's a jig. i have an idea that this is similar to a template but i
> cannot seem to find any sites that explain what jigs are and how they
> work so that i can fully understand.
>
> yes...i know it's stupid for me to think this way but i can't figure
> out why someone would spend a chunk of time making a jig to drill a
> hole, for instance.
>
> please pardon my ignorance...i really want to learn. oh and my first
> real project? building a headboard for my queensize bed.
>
> thanks!
> john

http://groups.google.com/group/rec.woodworking/browse_frm/thread/4b54ee77014=
57688/edaf582676413cc9?lnk=3Dst&q=3D#edaf582676413cc9

TW

Tom Watson

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 4:27 PM

On Jul 2, 8:17=A0am, unclescrooge <[email protected]> wrote:
> hi,
>
> i've been trying to do more with woodworking than simple home repairs
> and i've seen the term used quite a bit and while i have an idea what
> it is, i'm not 100% sure how to use it.
>
> it's a jig. i have an idea that this is similar to a template but i
> cannot seem to find any sites that explain what jigs are and how they
> work so that i can fully understand.
>
> yes...i know it's stupid for me to think this way but i can't figure
> out why someone would spend a chunk of time making a jig to drill a
> hole, for instance.
>
> please pardon my ignorance...i really want to learn. oh and my first
> real project? building a headboard for my queensize bed.
>
> thanks!
> john

There are three fairly closely related terms involved and I'm going to
give you my understanding of what they mean. This in no way attempts
to define each of the items - this is simply how I use the terms.

A TEMPLATE is made of an item whose shape needs to be transferred to
another place for cutting. Think of a sink TEMPLATE. It is usually a
one off.

A JIG is a short term FIXTURE that allows you to repeat things like
cuts and drilling points. A JIG is not made as well as a FIXTURE
because it is specific to the current job, rather than being something
that is relevant to many different jobs.

A FIXTURE is a JIG that can be used over multiple jobs. An example of
a FIXTURE would be one that gave you a PATTERN for how to drill
cabinet doors a certain distance from the top and the bottom, and a
certain distance in from the edge. In my usage of the term it would
also clamp you in so that your drilling would be more accurate.

All FIXTURES are JIGS but not all JIGS are FIXTURES.

an

alexy

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 8:46 AM

"Leon" <[email protected]> wrote:

>
>"unclescrooge" <[email protected]> wrote in message
>news:a1f7b9e6-8a27-4b32-9ad6-0fd72dbc6f4f@l64g2000hse.googlegroups.com...
>> hi,
>>
>> i've been trying to do more with woodworking than simple home repairs
>> and i've seen the term used quite a bit and while i have an idea what
>> it is, i'm not 100% sure how to use it.
>>
>> it's a jig. i have an idea that this is similar to a template but i
>> cannot seem to find any sites that explain what jigs are and how they
>> work so that i can fully understand.
>>
>> yes...i know it's stupid for me to think this way but i can't figure
>> out why someone would spend a chunk of time making a jig to drill a
>> hole, for instance.
>>
>> please pardon my ignorance...i really want to learn. oh and my first
>> real project? building a headboard for my queensize bed.
>>
>> thanks!
>> john
>
>
> 1.. A device for guiding a tool or for holding machine work in place.
>A jig is basically a generic name for the above that has a specific
>function.

And to answer your last question, you might want to build such a
device to drill a hole perfectly perpendicular, in a place that can't
be accessed by your drill press. A perfectly square guide hole in a
piece of scrap, that you use to keep your hand-held drill square is
about as simple as jigs get. But maybe a better example is if you
wanted to drill 20 holes 15" from an edge, at 1 13/16" spacing. You
could measure and mark the center of each hole, center punch, then
drill. If I were to do that, I'm sure at least one of my spacings
would be off by 1/8" (as would all subsequent ones), and if by luck I
got all the spacings right, my punch or drill would hit a hard ring in
the wood and drift slightly. A jig to guide the drill and space the
hole relative to the edge and the previously drilled hole would be
much faster and more precise, even given the minimal time to build it.

And while the definition Leon gave covers the bulk of jigs, I also
think of aids for hand tool work as jigs. Examples include shooting
boards, sharpening jigs, etc.

To get a good feel for what jigs can do, check out Den Vaughn's site:
http://home.comcast.net/~kvaughn65/

--
Alex -- Replace "nospam" with "mail" to reply by email. Checked infrequently.

dn

dpb

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 9:15 AM

unclescrooge wrote:
...

> it's a jig. i have an idea that this is similar to a template but i
> cannot seem to find any sites that explain what jigs are and how they
> work so that i can fully understand.
...

Actually, it's that little hop-step dance one does around the shop after
hitting the thumb. Sometimes accompanied by loud noises...

jig
1.a. Any of various lively dances in triple time.


:)

--

dn

dpb

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 4:50 PM

unclescrooge wrote:
...
> corresponding cut on the near side (what i gather is the pushing side)
> so i can't see how this would allow you to cut the piece completely.


That's what the big block there is for -- to cover the blade when it
passes the vertical fence...

...
> jig that i don't have and i can't see how to make it to make the holes
> to hold the cutouts on the receiving posts (i think that's called
> mortise and tenons??)....if so..there is one jig for the mortise and
> one for the tenons and i have no plans ...

There are any number of articles in FWW and other magazines on using
routers to cut mortises and tenon w/ jigs for both.

All it takes is a guide edge for the router to run along and a stop at
each end to control the length. Ideally, if the mortise is to be
centered in the work one makes the jig self-centering, but one can also
use the trick of cutting the same distance from each face and then size
the tenon to fit the mortise.

One basically needs to consider what one is trying to accomplish and
figure out how would be an expedient way to do that rather than simply
trying to copy somebody else's every step. Learning by watching is good
up to a point, but...

--

TT

Tanus

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 7:31 PM

unclescrooge wrote:

>
> "it's an entirely different thing all together" "but quit calling me
> shirley" (Airplane quotes)
>
> anyhow...kvaughan's site does help clear it up somewhat. i guess that
> i get thrown by the design of some of them that i see on tv or on mr
> vaughan's site. for instance that large sled for his table saw. i
> don't see how you could set a large piece of wood on that thing and
> not cut this jig in half with the woodstock.
>
> i see the cut on the far side of this jig where he's already pushed
> too far once and knicked it pretty good.
>
> i'm sorry...i must sound like an idiot. let me explain...i don't see a
> corresponding cut on the near side (what i gather is the pushing side)
> so i can't see how this would allow you to cut the piece completely.
> it would seem that the cut would leave 1/4-1/2 inch still attached
> unless there is a matching cut on the near side that this camera shot
> does not show.
>
> http://home.comcast.net/~kvaughn65/big_sled.jpg
>
> invariably...i get things by watching someone do them and i then i
> replicate it. but this is throwing me..and the reason i'm asking about
> this is that the headboard plan my friend's uncle gave me calls for a
> jig that i don't have and i can't see how to make it to make the holes
> to hold the cutouts on the receiving posts (i think that's called
> mortise and tenons??)....if so..there is one jig for the mortise and
> one for the tenons and i have no plans nor can find any online to do
> this.
>

Hi Scrooge,

You've had a lot of explanations as to what people think jigs are. I
think you're getting the general idea.

I don't know how complex the headboard is that you're planning on, but
it sounds like it has more than just a simple construction to it.

I started out a few years ago with some ideas of what I wanted to build,
and how quickly I wanted to get there. I am, like you, an amateur with
no formal training. I like it that way but it has its disadvantages. For
one thing, things that look simple, invariably aren't.

I learn something new each project I tackle. One of the first things I
learned was that early one, complex projects were a good way to ruin
some good wood and frustrate me to the point where I didn't want this
hobby any more. Learning, and accepting, what my talents _could_ do was
likely the most important lesson. I havne't thrown a hammer at a project
in a long time because of that lesson.

What I'm getting at is that it's a good plan to start small, gather some
skills together and use them to grow in project size/ complexity. Take a
long look at your headboard and ask yourself if the complexity is a bit
daunting. If not, go for it, but if it is, try something smaller first.
Plenty of plans on the Web for smaller projects. Hell, even a birdhouse
demands a few skills that are easily developed and never
forgotten.....food for thought.

Tanus

lL

[email protected] (Larry W)

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 1:37 PM

The dictionary definition is that a jig controls the motion or location
of a tool; a fixture controls the location of a workpiece.
--
The best argument against democracy is a five-minute conversation
with the average voter. (Winston Churchill)

Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org

dn

dpb

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 3:36 PM

unclescrooge wrote:
...

> mesquite i decided. a friend has a tree in his backyard that he's
> wanting to remove. ...

Well, if you're starting w/ green wood, you've added a whole new area of
practice to your repertoire of required skills... :)

Drying timber to get usable, stable lumber for cabinetmaking is an art
in itself...

--

TT

Tanus

in reply to unclescrooge on 02/07/2008 5:17 AM

03/07/2008 8:03 PM

unclescrooge wrote:

>
> this helped quite a bit. the headboard doesn't sound that complex.
> it's two posts that need mortises to attach to the metal frame and
> then some 1x6's that span the mattress and connect the two posts.
>
> if i had a better set of power tools, this might be easier but the
> jigs required are for the mortises for the bedframe connector and the
> 1xt6's connecting the two posts. all of this is going to be made with
> mesquite i decided. a friend has a tree in his backyard that he's
> wanting to remove. i can cut it down the rough it out...but i'll need
> to get a friend to let me borrow the use of planer/joiner to cut these
> boards down to size.
>
> this is do-able right?

it's doable, but as dpb said, it's introducing a whole new set of
variables, most of which you've little or no experience with.

Disclosure: I have never cut down trees or used logs to make lumber for
projects. Any wood I've ever used has been bought at a lumber store or
Home centre. I've also never worked with mesquite. If I make errors
here, I'm sure someone will correct me.

Having said that, I'll tell you what I've learned from reading about the
process.

The tree should be a decent size. Your biggest board is going to be 1x6,
and you probably want quarter sawn, so that means some kind of diameter
that's significantly larger than 6". This likely isn't an issue, but you
need to know what diameter will yield the size of boards you want.

Once the tree is down, it needs to be cut into boards. You can do that
with a bandsaw or a chainsaw that's mounted on a resaw bracket. Either
way it's equipment I'm assuming you don't have. If it's a bandsaw, the
capacity needs to be at least the diameter of the log, but likely a few
inches more. If the log is 12" diameter, look to a 14" bandsaw. Lee
Valley has the guides for chainsaws to cut logs into planks. I have no
idea how easy or difficult that process is.

The rough cut boards will need to be planed and jointed, and I'm unclear
if that comes before or after drying the wood. Research on the web or a
book will tell you that. Maybe it doesn't matter. My guess is that it
does matter and should be done after drying.

From everything I've seen, drying is about one year per inch of
thickness of wood. You need a place to store the wood while it's drying,
preferably indoors, but it can be done outside if protected properly
Regardless, there is a bit of an art on how to stack it so it dries
evenly. Most recommend sealing the ends of the boards so they don't check.

Kiln drying takes less time, but you need access to a kiln.

I know I've missed things in the above, but I think you get the idea.
That's a HELL of a lot of work for two pieces of 1x6.

So yes, it's doable. Practical? I don't know. You['re the only one who
can answer that.

Tanus

Ld

LRod

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 12:30 PM

On Wed, 2 Jul 2008 05:17:20 -0700 (PDT), unclescrooge
<[email protected]> wrote:

>it's a jig. i have an idea that this is similar to a template but i
>cannot seem to find any sites that explain what jigs are and how they
>work so that i can fully understand.

Actually more similar to a fixture, but to the average wooddorker,
jig, fixture, and template all have blurred definitions. I'm not
exactly clear myself on the difference, although it's been explained
to me several times, but suffice to say that, as you've surmised, it's
a thing that's fashioned to either make a process more precise, or to
enable one to readily make multiple copies or accurately duplicate a
process multiple times.

>yes...i know it's stupid for me to think this way but i can't figure
>out why someone would spend a chunk of time making a jig to drill a
>hole, for instance.

To drill one hole might not be effective use of your time, but very
often you have to drill several similar holes (for example) and that's
where the time effort in fashioning a jig/fixture/templlate becomes
worthwhile. It's like painting. Everything about painting is in the
prep. Perhaps 5% of the job is actually slathering on product.
Everything else is setup.



--
LRod

Master Woodbutcher and seasoned termite

Shamelessly whoring my website since 1999

http://www.woodbutcher.net
http://www.normstools.com

Proud participant of rec.woodworking since February, 1997

email addy de-spam-ified due to 1,000 spams per month.
If you can't figure out how to use it, I probably wouldn't
care to correspond with you anyway.

an

alexy

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 8:49 AM

alexy <[email protected]> wrote:


>To get a good feel for what jigs can do, check out Den Vaughn's site:
>http://home.comcast.net/~kvaughn65/

And hopefully after another cup of coffee, I will be able to tell my
right from left hand, and type Ken Vaughn's name correctly!
--
Alex -- Replace "nospam" with "mail" to reply by email. Checked infrequently.

LM

"Lee Michaels"

in reply to unclescrooge on 02/07/2008 5:17 AM

02/07/2008 10:00 AM


"unclescrooge" <[email protected]> wrote in message
news:a1f7b9e6-8a27-4b32-9ad6-0fd72dbc6f4f@l64g2000hse.googlegroups.com...
> hi,
>
> i've been trying to do more with woodworking than simple home repairs
> and i've seen the term used quite a bit and while i have an idea what
> it is, i'm not 100% sure how to use it.
>
> it's a jig. i have an idea that this is similar to a template but i
> cannot seem to find any sites that explain what jigs are and how they
> work so that i can fully understand.
>
> yes...i know it's stupid for me to think this way but i can't figure
> out why someone would spend a chunk of time making a jig to drill a
> hole, for instance.
>
> please pardon my ignorance...i really want to learn. oh and my first
> real project? building a headboard for my queensize bed.
>
Short answer, just go into any good woodworkers shop.

The jigs are what is hanging all over the place from the walls, ceilings and
any other usable storage space.

If you are going to do anything simple, you probably could get by without
building a jig. Anything complicated or repetitous, can be greatly enhanced
with jigs. Gutair makers, for instance, use lots of jigs. They spend an
enormous amount of time building those jigs. But it would be almost
impossible to build a gutair without them.



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