Archive for the Category ◊ Jigs and Fixtures ◊

Author:
• Wednesday, July 08th, 2020
router table miter slot

Devoted readers (thank you!) know that I like to keep my router table simple but very capable

The router table is truly a key tool in the small shop but there is a wide range of complexity and cost involved. I admit to being intermittently tempted by router lifts, tracks and slots in the table and fence, bit changes and height adjustments from above the table, and micro adjustability of almost everything.

Yet, my simple set up continues to do everything required. It consists of an MDF top and fence on a 2×4 base, dust collection, and the Bosch 1617EVS held in a dedicated base attached underneath the table. Moreover, the flatness accuracy of the top equals the best tables reviewed in Fine Woodworking magazine #237, and it substantially exceeds most of them. Some of those rigs cost more than ten Bens. 

But what about routing a rabbet or profile on the end of a narrow stick, or, more challenging, a dado in the middle of, say, a 4″-wide rail? I again admit to being tempted by an impressive cast iron tabletop with a miter gauge slot. 

router end grain on router table

For routing on the end of the stick, the workpiece alone gives too little registration against the fence. Therefore, I have usually used a squared piece of plywood or MDF, about 10″ x 12″, to register the workpiece against the fence and prevent tearout at the trailing edge. (See photo just above.)

However, sometimes it is handy to use a miter gauge, especially for a short dado. This also allows me to register the left end of the workpiece against the miter gauge stop for a repeatable task.

Well, there just is not enough depth in a 3/4″ MDF top for a metal-lined track for a miter gauge. (Unlike for a T-track, which is more shallow.) Thicker MDF is an another option but that would mean a new table top that would require a recess to mount the router base. A bare slot in the 3/4″ MDF is also problematic in that it would wear quickly. I could line the slot with UHMW tape but it would be hard to get the width just right to avoid having to adjust my miter gauge bar every time I brought it over from the table saw. 

So, as usual, I turn to the late Pat Warner’s writings for a solution. On page 99 of his The Router Book, there is a simple way of making a temporary “slot” in your MDF router table top. My version uses nominal 1/2″ MDF with adhesive UHMW tape on inside edges. (See the photo at the top.) The outer board is screwed down in the near right corner to give more clearance for the miter gauge head, and elsewhere the boards are clamped.

This allows me to use my table saw miter gauge – the wonderful Incra 1000HD and its adjustable end stop. Note that I do not need to adjust the width of the bar. Instead, I retain the setting that works for the table saw, and then for the router table, simply set the two MDF boards snugly against the bar for a wobble-free fit. A backer board prevents tearout at the trailing end of the workpiece. The router table fence is not functional for the cut itself but is close by for dust collection if possible.

It looks like I just saved several hundred dollars yet again. 

Mmmm, that walnut looks nice.

Author:
• Saturday, June 27th, 2020
long-grain shooting board

My new jig for long-grain shooting accommodates workpieces up to 36″, a big increase from the old jig’s capacity of 24″. I was motivated by a few occasions when I had to use the somewhat awkward setup of clamping a long workpiece to a support board and running the plane on the benchtop. 

I have found that shooting a three-foot long piece is really not a problem with a good setup. And the big jig imposes no disadvantages for shooting much shorter pieces. 

My 10/31/19 post is a discussion of long-grain shooting. 

Construction is simple from 3/4″ MDF: The workpiece platform is 6″ wide on top of the base, which is 9″ wide, to make a 3″-wide plane runway that is covered with thick PSA UHMW plastic. I like the Lie-Nielsen #9 but any bench plane would work.

The workpiece is controlled from the front by the end stop, and from the side with clamped scraps. I find no need for an elaborate, screw-mounted permanent lateral clamp board because while it would offer some convenience, it would also limit the functional range of the jig. Top (downward) control is supplied by your hand. 

long-grain shooting board

When shooting a narrow workpiece, such as a door stile, which might temporarily have a convex or concave non-working edge, there is the danger of the workpiece flexing against the straight edge of the lateral control board. The solution, shown above, is to use two separate lateral control boards, each butted against a section of the (non-straight or suspect) non-working edge of the workpiece. 

The cleat at the right end of the jig is an afterthought (you know what I mean: “Doh!”) that allows the jig to be clamped with dogs with a conveniently minimal opening of the tail vise, which is then tightened. 

It works beautifully.

Category: Jigs and Fixtures, Techniques  | Tags:  | 6 Comments
Author:
• Sunday, December 08th, 2019
shooting board

Here are the details of the shooting board I use. It is designed for use with the Veritas shooting plane, as well as to fit my workbench, the work I typically do, and my personal physical characteristics (I’m right handed).

It is constructed primarily from 18mm 13-ply birch plywood. The base and thus the overall dimensions are 22 3/4″ x 14 1/2″. The platform upon which the workpiece rests is 11 1/4″ wide, and is glued and screwed to the base.

The right side of the platform was planed accurately straight before installation. The tiny rabbet, which is the basis for how a shooting board works, is created with the first few passes of the plane that “break it in.”

Porcaro shooting board

The cleat at the front, glued and screwed, hooks onto the front of the workbench. The cleat on the right side fits into the tail vise. Together, they give the shooting board rock-solid stability in all directions while in use.

The channel for the plane is about 2 1/8″ wide, and lined on the bottom with 3/64″ PSA UHMW plastic. The 9mm 7-ply birch strip, 1 7/32″ wide, on the right side of the channel is adjusted to create a snug fit for the Veritas shooting plane, and firmly secured with pan-head screws placed at 3″ intervals. It is not glued, so it can be adjusted if needed. The inside wall of the strip is waxed.

Porcaro shooting board

The fence block is 2 1/4″ wide, made from two glued layers of the 18mm plywood. It is glued and screwed square to the sole of the plane nestled in the channel. The 3/4″-thick (or 7/8″) poplar replaceable subfence is attached with two 3″ x 1/4″ lag screws that enter from the back of the fence block, accompanied by heavy washers. The pass-through holes in the fence block for the lag screws are actually small slots that allow for some lateral adjustment of the subfence. You may want to use a third lag screw to ensure the subfence is snug against the fence block. 

shooting board fence

There are three ways to tune the 90° angle of the subfence. You can use whatever suits you; that is a big advantage of this design. Remember, we are using the in-place sole of the plane as a reference, not the channel edge itself. 

First, when you create the subfence itself, you can easily plane it as needed – it’s friendly poplar. Then, when you attach the fence you have the chance to put very thin shim(s) between it and the fence block. Now, if you placed the fence block dead on and use a perfectly thicknessed subfence, you should not need to do this, but it is good to have the option! Finally, when in use, you can put a piece of tape or a shaving between the workpiece and the subfence to fine tune the working angle.

For angles other than 90°, you can make and attach a different subfence.

The front of the subfence is 7 3/8″ from the back edge of the shooting board. This gives more than enough length to fully support the 5 1/2″ toe of the Veritas shooting plane. I prefer the plane to have full registration against the channel edge all the way through the cut. There are many shooting board designs with the fence at the end, which causes the plane to lose full registration before the cut is completed.

Also, the 7 3/8″ works out to make the front of the fence not too far away from me, so I don’t have to lean forward too much, while still allowing the base of the shooting board to reach across the tool trough to get full support from the rear wall of the trough. This also results in enough platform depth to accommodate the vast majority of workpiece widths that I use.

The 11 1/4″ fence is long enough to firmly register almost all the work I do. You may want to make your shooting board wider. For any board longer than 20″ or so, I stack a couple of pieces of plywood under the left side of it to prevent it from tipping up at the working end. 

The screw eye allows you to store the shooting board on the shop wall, away from abuse.

Remember:

  • sharp!
  • dynamic stability in use
  • low-tech micro-adjustment
  • and . . . the grippy glove on the left hand

I put a lot of forethought into this design, gathering ideas from many other designs. It has worked out very well for me. I hope it helps you with your work.

Addendum:

A plane such as the Lie-Nielsen #9 or a bench plane on its side can be gripped directly above and just behind the cutting edge. For these planes, a snug enclosed channel in the shooting board, such as shown here, is still very helpful but not essential. For the Veritas (or Lie-Nielsen) shooting plane where the grip is far behind the cutting edge, a snug channel is, in my opinion, a practical necessity. The grip location in these planes makes it too easy to get off track in the shooting stroke. Both systems work but I have come to prefer what I have detailed here for you. 

Author:
• Sunday, December 01st, 2019
shooting tips

Another question from a reader: “My trouble in shooting is (I guess) in advancing the wood.  I often find myself in a situation where I’m feel like I’m pushing the wood very firmly against the toe of the plane and still not getting any bite from the blade.  This problem seems to come and go and I have yet to diagnose what I’m doing wrong.”

There are at least two possible reasons for this.

1. The blade may not be sharp enough, causing it to skid on the wood rather than cut it. The whole system (workpiece, plane travel, blade edge) may be deflecting, preventing the blade edge from engaging the wood. 

Of course, end grain is harder to cut than long grain. Paring end grain is how many woodworkers test an edge. However, there is another reason why sharpness is so critical that is peculiar to shooting. 

Planing in the usual manner with a bench plane, we intuitively sense that we can extend the working life of a gradually dulling edge by pressing down harder with the plane. Related to this, we find that it is necessary to advance the blade further (depth of cut adjustment) to get it to take the same shavings as when it was sharper, though with more effort. Eventually, we head back to the sharpening bench.  

Brent Beach offers a technical discussion relevant to this. The basic idea is that the extremely narrow lower wear bevel in a sharp blade has less area against the wood, and so is able to generate more pressure (force per unit area) on the wood than does a dull blade with a wider lower wear bevel. The sharp blade compresses the wood and bites into it.       

In shooting, the plane does not ride on the wood, it rides on the edge of the track, and so you cannot regulate the edge pressure against the wood as you can with ordinary planing. The blade has to be sharp enough to cut without your “help,” so to speak. Actually, I have found myself intuitively trying to shove the workpiece toward the plane as the blade dulls, but that is awkward at best, and tends to produce inaccuracies.  

Furthermore, end grain is less compressible than side grain. 

2. Another possibility is that the fence is set slightly greater than 90°. This will cause the workpiece to register against the sole of the plane near the fence but not reach the sole where the cut begins. It only takes, say, a couple thou of error for this to happen. Furthermore, as an insufficiently sharp blade moves along to eventually meet the workpiece, it might push it away rather than cutting into it. (This is another example of the general principle that a tool, hand or power, given the opportunity, will move the workpiece instead of cutting it, and/or move the tool itself.)

The shooting board fence may start out dead-on at 90°, but if it is not very firmly set, it is easy for it to eventually get pushed to greater than 90° because that is the direction of your force on it in use. 

In summary:

1. Sharp – wicked sharp – is a must for shooting!

2. The shooting setup has to be not only statically accurate, but also dynamically stable in use.

Category: Jigs and Fixtures, Techniques  | Tags:  | 4 Comments
Author:
• Sunday, November 24th, 2019
shooting board

A reader described the following frustration he is experiencing with end grain shooting.

“I have a problem getting perfectly square ends when shooting them on my shooting board.

“I have a homemade plywood shooting board and use a Record 5 1/2 on its side to shoot. I’ve checked everything, and everything is square to each other and the plane is sharp, however when shooting end grain the plane takes more off the near edge (closer to the front) than the back edge. 

“Am I doing something wrong?”

If you are getting this inaccuracy despite having everything set up square and true, the glitch may be in the shooting stroke itself. The blade can grab the workpiece on initial contact and slightly pivot it away from the fence at the opposite end. This can easily happen with wide workpieces. 

But first let’s check a few things with your set up.

The sole of the plane should be flat, at least in the critical areas. Use a very wicked sharp blade with a straight, not cambered, edge, and a fine, even blade projection.

The track edge that the sole of the plane runs against in the shooting board must be straight. Ideally, the shooting board should have a snug channel in which the plane travels to prevent it from deviating during its run. (This will not work with a bench plane with a rounded side hump but not as well as with a dedicated shooter.) Wax the channel and/or use UHMW plastic on the running surface. If your shooting board does not have such a channel, take extra care to hold the plane firmly (without tipping it) against the running edge throughout the shooting stroke. 

The fence must be straight, of course. The best way to square the fence is to place the sole of the plane (with the blade retracted) firmly against the track edge, then place a square against the sole of the plane and the fence. This directly assesses the elements that produce the square edge on the workpiece. The fence has to tolerate considerable pressure in use, so make sure it is fastened securely.

The fence also has to be long enough to register an adequate length of the workpiece so the workpiece does not budge during the planing stroke. I sometimes had problems with my old shooting board that had a fence that was too short. My current shooting board’s fence is 11 1/4″ long. Books often show shooting boards with a fence that is too short for furniture work. 

A grippy glove on the hand holding the wood is a huge help in keeping the workpiece steadily registered and in advancing it after each cut. Otherwise, inaccurate registration can creep in, especially with wide workpieces, and especially as you fatigue. As a diagnostic experiment, try positioning a workpiece just right, then clamping it in place, shoot, and see if you get a square edge. 

In summary, your shooting “machine” must be set up accurately, but also must be dynamically stable in use.

Mystery frustrations like this reader is experiencing afflict all of us woodworkers but are rarely addressed in books and other teaching media where the descriptions are often idealized. Rest assured, however, there are solutions. 

I hope this helps, dear reader, but if you are still stymied, let me know. We’ll get it right.

Category: Jigs and Fixtures, Techniques  | Tags:  | 13 Comments
Author:
• Thursday, November 21st, 2019
Veritas shooting plane

Shooting is a gateway skill to precise hand tool woodworking. So get started by shooting with the planes you have. 

The basic requirements are:

  • Mass. You want substantial momentum to firmly and steadily carry the blade through the cut after you get it started, especially for end grain shooting. 
  • The side of the plane should be square to the sole. If you only have a not-so-great plane, use tape to shim the side. I did this with my old Record jack plane when it was the only one I had. [Please see in the Comments section reader Michael’s germane point and my lengthy reply for more details on the squareness issue.]
  • It helps a lot to have a comfortable, secure grip to consistently apply pressure where it is needed. Dedicated shooting planes have this feature. 
  • The blade must be sharp. Sharp! A dull blade is not only harder to push through the cut, but accuracy will suffer as the plane and the blade itself deviate from a true path. 

For end grain shooting:

Best: a dedicated shooting plane. 

Veritas shooting plane

I use the Veritas shooting plane, and love it. Comfortable and accurate to use, it meets all the requirements above. The adjustable-angle handle properly and comfortably directs pressure, and the 20° skew really eases the blade through the cut. The bevel-up design is easy to set up and adjust, and provides excellent support to the blade close to its edge.

Is it worth spending about $350 dollars on a plane just for shooting? In view of all the other expenses involved in woodworking, yes, it is. (See the first sentence of this post.)

Lie-Nielsen also makes a great shooting plane, which I have had a chance to use briefly. This massive tool uses a bevel-down design and a skewed, Bedrock-style adjustable frog. Personally, I like the Veritas design and features, but both merit consideration. 

I use a straight edge blade for end grain shooting – no camber

Good: a bevel-up bench plane. 

Veritas jack plane

The Veritas BU jack plane is perhaps the most versatile plane of all, and a good shooter. The BU design gives good blade support, and makes it easy to swap dedicated blades for its varied uses. You can get a decent grip on this plane for shooting.

Adequate: a bevel-down bench plane. 

I used a BD jack and jointer for shooting for years. I do not consider these ideal but they can get the job done. Don’t let anyone tell you that you “can’t” cut end grain with a bevel-down plane. Use a sharp blade, and set the chipbreaker close to the edge to reduce deflection.

bevel-down jointer and jack planes

Gripping a bevel-down bench plane for shooting may be a bit awkward for some. With the jack, I squish the base of my thumb behind the side hump and plant four fingers on the lever cap. A grippy glove can help. (So then you’ll have one on both hands.) 

For long grain shooting:

Compared to using a plane with the blade on the bottom (the “regular” way) this is just a matter of different manual mechanics. The plane is not running in a track as in end grain shooting. 

So, a BU or BD bench plane is fine, as long as it has decent mass and stability, the side is square to the sole, and you can get a decent grip. And . . . the blade is sharp.

I like my Lie-Nielsen #9 “iron miter plane,” which I’ve dedicated to long grain shooting, because its beefy, boxy design makes it stable through the stroke, and it handles exceptionally well with the “hot dog” grip. This is a bevel-up design with a 20° bed. (Hmm . . . ) Unfortunately, I don’t see it on their website any more. Veritas sells a somewhat similar plane. 

Lie-Nielsen #9

I keep the #9 set up with a straight edge blade, mostly because it is easier to maintain and works well for the thin stock that I’m usually using when long grain shooting. A mild camber, such as for a jointer plane, is also a good option, especially if you will be long grain shooting thicker stock, or if you are also using the same plane and blade for general tasks.

Author:
• Thursday, October 31st, 2019
long grain shooting

Long grain shooting does not get the attention this valuable technique deserves. A cousin to end grain shooting, it is just as simple in principle but more so in practice. 

We are simply planing straight and square along the long grain edge of a board by laying it flat, elevating it, and using the plane on its side, which must be accurately square to the sole.

In general, this is most useful for workpieces about two feet long or less. This stock is often fairly thin, and may also be narrow. A good example is preparing quartersawn pieces to glue up for small to medium drawer bottoms.

It is difficult to balance a plane on the edge of a workpiece thinner than about 1/2″ held in the front vise. Shooting is a much more stable setup, and still allows a good sense of the nuances along the edge – straight or cambered. (An alternative is to plane two or more boards at once in the front vise.)

All you really have to do is lay the board flat on a support board with the long edge of the workpiece slightly overhanging the edge of the support piece. The sole of the plane is therefore riding only on the work piece, unlike with end grain shooting. In fact, a minimalist setup could be to just place a support board underneath the workpiece, and clamp the pair to the workbench, upon which the side of the plane will ride.

I use a dedicated long grain shooting board (below) that accommodates work up to about 24″ long. (Long time readers may recognize that it has been modified from its former role in end grain shooting.)

shooting board for long grain

This arrangement allows me to reach over the workpiece and plane the edge that is facing away from me, which creates similar body mechanics to the usual way of pushing a plane. The PSA-backed UHMW slick plastic installed on the plane track makes the work easier.

long grain shooting

The workpiece (the curly maple in the above photo) must be controlled in all directions. For lateral control along the length, I use an ad hoc arrangement with a scrap board clamped to the near side of the shooting board. Alternatively, you could make a more elaborate jig with a wider, permanent, adjustable, screw-mounted lateral-control board on the side away from you, and plane the edge facing you. This seems awkward to me.

The end of the workpiece meets the front stop. Ideally, this is a square meeting but that is not essential. Mild downward pressure on the workpiece is supplied by you. You may be able to get away without using the clamp and lateral stop board for small pieces. I find the grippy glove (top photo) makes the work easier for all setups, small or large, clamped or not.

There is no reason to over-complicate this technique. Keep it simple and use it often. 

Next: planes for end grain and long grain shooting.

Category: Jigs and Fixtures, Techniques  | Tags:  | 2 Comments
Author:
• Saturday, October 19th, 2019
Tormek with felt wheel

For a long time, I have not liked the leather honing wheel on the Tormek. I never used it for general sharpening because I prefer stones, but even for knives, gouges, and an occasional touch up of other edges, I find it fragments easily and does not hold the honing compound as well as I would like.

I finally got around to setting up the wheel with felt. It was easy to remove the leather and scrape clean the plastic base of the wheel. 

I got the felt from McMaster. I first tried PSA-backed felt just for the convenience of applying it to the wheel. The hardest available in this style was “Firm” F1. A 3/16″-thick strip proved to be still too soft.

The harderHard” felt is available only in sheets without the PSA backing. I cut the 1/8″-thick, 12″ x 12″ sheets into strips and applied them with 3M General Purpose 45 spray adhesive using simple butt joints to make a continuous layer around the wheel. The S2-20 (durometer 50A) works best. The S2-32 (durometer 80A) is nominally about half as compressible as the S2-20 but the difference does not seem to matter for this purpose. I prefer the texture of the S2-20 as it seems to grab the honing compound better.

Because I use the wheel for fine finishing, I charged it with 0.5 micron diamond. Mineral oil-based paste and water-based spray will both work but I think the paste is better. They cut fast but can get expensive over time. An economical alternative is a stick of Formax “green micro fine honing compound,” which I surmise is also about 0.5 micron, available from Woodcraft. Of course, it cannot cut as fast as diamond but with patience it can still produce an excellent edge. 

My preference is mineral oil-based synthetic diamond paste from Beta Diamond Products. It cuts fast and consistently, and a little bit goes a long way. I find the jar easier to deal with than the syringe. 

Bottom line: the felt replacement works very nicely; I like it a lot better than the leather wheel. It is especially helpful for knives, gouges, and is even handy for quick touch ups of plane blades and chisels. I keep these touch ups very light because I don’t want to round the edge too much, which would interfere the next time I work the edge on stones.

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Author:
• Wednesday, January 31st, 2018

tenon shoulder jig

This simple jig makes it easy to produce highly accurate tenon shoulders on the table saw. Admittedly, it is a nicety, not a necessity, but I have been delighted with the consistently excellent results from it.

The special feature is that both edges of the fence are used, in turn, to register the work piece. This allows you to work from a single reference edge of the rail. This is hand-tool style – you do not assume the two edges of the rail are exactly parallel. Yes, they probably are, close enough at least, but I like potential errors to cancel whenever I can. Setting up a jig like this means I only have to be dead on once – when I make the jig.

This means that the edges of the fence must be absolutely parallel to each other. They are, within a thou.

Also, a sled is a generally more accurate way to crosscut on the table saw because the work piece does move against any surface. Of course, the miter slot must be accurately parallel to the blade for this jig, or for any device that slides in the miter slot, to work well.

Making the jig

The overall dimensions of the jig are 21″ x 14″.

build a tenon shoulder jig

Trim the UHMW strip to a snug fit in the miter slot, and then attach it to the 3/4″ MDF base of the sled using screws entering through the top. Locate the runner so that there is a little bit of the base extending to the right beyond the blade. Then, trim the right edge of the sled by sliding the base in the miter slot. The other three edges of the base are not critical; cut them only for a neat appearance.

The fence is 3/4″ MDF, 2 1/2″ wide. Stable, quartersawn hardwood is probably a better choice of material because it is easier to trim straight and square, but I got lucky when ripping this piece of MDF so I used it. Using 1/4″-20 flat-head bolts through the bottom of the base, attach the fence square to the right edge of the base. T nuts make it easier to tune the angle now, or later if needed.

Neatly add PSA 220-grit sand paper to both working edges of the fence. The big knob in the middle helps in maneuvering the sled.

In use

A stop block is easily added to my VSC table saw fence. Mark the reference of edge of the rail. Adjust the blade height. Remember to readjust the blade height if you are making a tenon that is not centered on width of the rail.

Cut one shoulder . . .

cutting tenon shoulders

and then the other, using the same reference edge of the rail.

tenon shoulders on the table saw

You also can make the little “connecting” (edge) shoulders with this jig on the table saw. However, errors can creep in. When the rail is held on its long edge, it can register differently against the stop block than when it is held on its face. This will result in the end shoulder(s) not aligning with the face (main) shoulders. So, I often prefer to do these by hand, which is easy.

As always, there’s more than one good way to get the job done.

Author:
• Sunday, January 28th, 2018

tenon shoulder trimming jig

Tenon shoulders must meet stringent standards to produce a good joint – straight, at the correct angle to the length of the rail (usually 90°), accurately paired on both sides of the joint to meet the surface around the mortise, and in position to make the length of the rail fit the overall structure. Thus, whether produced by machine or by hand, you need a reliable method to tweak tenon shoulders. A shoulder plane has no equal for this task, but it needs a good work setup to make it function well.

This jig meets that need. In 2016, I wrote in detail about the jig that I had been using for many years. I usually use my Clifton 410 small shoulder plane or, for large work, the big Lie-Nielsen. For small work and other delicate adjustments, I like my little Japanese shoulder plane, used on the pull stroke.

To use both styles of planes, the jig should be reversible. Why didn’t I do this a long time ago? I removed the front cleat, and repositioned the bottom cleat, which fits in the tail vise, to the middle of the base.

tenon shoulder jig

Now I can use the jig for push-style shoulder planes:

tenon shoulder trimming

And, by rotating the jig 180° and using the other end of the fence, for pull-style shoulder planes:

Japanese shoulder plane

In either direction, the plane moves toward a hardwood backup piece that prevents spelching at the exit end of the work piece. This replaceable element is secured with deeply countersunk screws. The graphics on the top remind me of the presence and depth of the screw heads.

tenon shoulder trimming jig

After this revision, the jig is reduced in overall size to about 8 1/2″ x 12 1/2″, but that does not matter. It can accommodate even large work pieces by using a scrap of wood under the rail for outboard support. The toggle clamp, along with the self-clamping effect of always working toward the fence, keeps the work piece secure.

The jig is quick and easy to build, and I think you will find it helpful for this exacting task.

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