Simple Jigs and Techniques #2: Precision Router Jig for Straight Lines.

  • Advertise with us
Blog entry by shipwright posted 07-13-2012 12:12 AM 11933 reads 3 times favorited 19 comments Add to Favorites Watch
« Part 1: Simple Precision Arc Inlay Jig Part 2 of Simple Jigs and Techniques series Part 3: Matching Short Grain Veneer Border »

This is basically the same as the arc jig in the first segment but for a straight line rebate in a spot where it would be a bit of a shame to miss the target.

It starts out as a piece of 1/4” MDF glued to a piece of 1/8” plywood. The plywood is more than 1/2 the width of the router base. Use the bit you plan to use for the cut and trim the plywood using the MDF as a guide.

Now when you set up to make the cut you can see exactly where it will fall on the workpiece. No measurements need to be taken.

When I use measurements I find that there is always a way to screw them up so I avoid them with little jigs like this whenever I can. In this case I’m installing a 3/16” wide banding between a marquetry surface and a solid one. I’m using a 1/8” bit and after the first cut I will fit the one edge of the banding against the first cut and the jig tight against the other. The second pass will make a perfect fit and again I won’t have to measure anything.

I usually make these sort of jigs for a single job and chuck them when it’s done. If you keep it mark it with the router and bit size it was made with.

This jig is just common sense and probably not news to most of you but I just liked how easy it made a “high pucker factor” rebate slide by with no real sweat on my side of the router.

Thanks for looking in.

Comments critiques etc welcome always


-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

19 comments so far

View Jim Jakosh's profile

Jim Jakosh

20489 posts in 3105 days

#1 posted 07-13-2012 12:40 AM

Pretty slick!!.............Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View longgone's profile


5688 posts in 3308 days

#2 posted 07-13-2012 01:01 AM

Jigs always come in so handy Paul. Makes life easier.

View a1Jim's profile (online now)


117094 posts in 3577 days

#3 posted 07-13-2012 01:17 AM

Very similar to a shop made circular saw guide ,good job Paul.

-- wood crafting & woodworking classes

View BertFlores58's profile


1698 posts in 2922 days

#4 posted 07-13-2012 01:36 AM

Hi Paul,
I usually go for direct quide nailed or clamped on the workpiece because of the bits cutting capacity. Those bits available here are not really long enough to route the depth I required. But good you have posted this method because I need this technique for angled cut on my recent project. I will just incline (tapering or sliding on the bit end) to my desired angle—in this case 4.5 degree inclined to produce an edge of 85.5 degrees… 40 pcs of these pieces will form a cylinder.
Thanks for the idea, Paul.

-- Bert

View Karson's profile


35121 posts in 4400 days

#5 posted 07-13-2012 01:55 AM

Paul: Another great tip. Now I hope I can remember it when in the trenches.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia †

View Woodenwizard's profile


1331 posts in 3043 days

#6 posted 07-13-2012 02:35 AM

Thanks for sharing. I plan on using this in the future. Just need to find the time and right project.

-- John, Colorado's (Wooden Wizard)

View HalDougherty's profile


1820 posts in 3237 days

#7 posted 07-13-2012 03:28 AM

Make it just a little bigger and attach a board at the end so you can see where both sides of the router bit hit the workpiece and it will make a simple dado jig too.

-- Hal, Tennessee

View rance's profile


4258 posts in 3160 days

#8 posted 07-13-2012 03:51 AM

It looks like the guide I see for circular saws a lot.(Edit: Oh, Jim already mentioned this.) It hadn’t occurred to me to use it for a trim router. You could also make it double-edged to accomodate two different diameter bits. Looks very useful. Thanks for sharing Paul.

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View sras's profile


4799 posts in 3129 days

#9 posted 07-13-2012 04:01 AM

The time to make a jig is always worth it! Good thinking Paul!

-- Steve - Impatience is Expensive

View Joe Lyddon's profile

Joe Lyddon

10100 posts in 4052 days

#10 posted 07-13-2012 04:04 AM

I’ve used the same type of guides for my Circular Saw and larger Router & 1/2” bit. I clamp mine onto the workpiece.

The same guide here is for a Small router & bit…

Very NICE cutting guide… Very easy to setup and use…

I’m now waiting to see the wonderful creations being made by using it! LOL

Thank you.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: ... My Small Gallery:"

View DeLayne Peck's profile

DeLayne Peck

543 posts in 2202 days

#11 posted 07-13-2012 05:20 AM

“High pucker factor” woodworking. LOL, we have all had those moments! Thanks, Paul for a tip and a laugh!

-- DJ Peck, Lincoln Nebraska. Lord, keep your arm around my shoulder and your hand over my mouth.

View RogerBean's profile


1605 posts in 2953 days

#12 posted 07-13-2012 06:05 AM

Good idea. I can’t seem to measure properly either.

-- "Everybody makes mistakes. A craftsman always fixes them." (Monty Kennedy, "The Checkering and Carving of Gunstocks", 1952)

View Schwieb's profile


1857 posts in 3461 days

#13 posted 07-13-2012 11:17 AM

I like it Paul. I can see that it works better to use a trim router. I will need to move that one up further on the “to Buy list”. Custom one time jigs for high value projects make for a predictable outcome.

-- Dr. Ken, Florida - Durch harte arbeit werden Träume wahr.

View Lee A. Jesberger's profile

Lee A. Jesberger

6856 posts in 3979 days

#14 posted 07-13-2012 02:26 PM

Nice post, Paul.

Don’t you just hate those “high pucker factor” portions of a project?


-- by Lee A. Jesberger

View Steven Davis's profile

Steven Davis

118 posts in 2914 days

#15 posted 07-13-2012 05:13 PM

Paul -

Good post, as usual. Your underlying message as well as the work of Martyn and others is to use jigs and relative measurements rather than dimensions is probably one of the true secrets of better woodworking.



-- Steven Davis - see me at

showing 1 through 15 of 19 comments

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics