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View Full Version : Biscuit Jointer Jig...PICS (Part 1)



Gord Graff
02-24-2008, 7:28 AM
Hi All,

Since there has been a number of questions and comments raised about the biscuit jointer jig I used in the Pine Hall Mirror video http://blip.tv/file/688794 in another thread, I thought I’d post the jig here. Here is the original posting I did in 2006 of a biscuit jointer jig that made its way into the pages of Fine Woodworking Magazine. I hope this helps.

All the best
Gord
.................................................. .................................................. ..............

Hello All,

I was presenting a seminar on biscuit joinery the other night and after the class one of the attendees came to me and couldn’t believe how my simple biscuit joiner jig could solve a number of problems he had. He was so amazed with the simple thing that the only thing I could do was hand it to him and say, “here you go”.

After giving it away I knew that I would have to make a new one, so this morning I did just that and documented it in hopes that it may help someone else.


Like most woodworkers, I embraced biscuit joinery many years ago and like most woodworkers, I never seem to have enough flat usable space to register the joiner off of when joining ¾” material. Using my bench as a flat surface to register my biscuit joiner off of is a crapshoot most days as it is covered with dried on glue drops and whatnots. My solution to this has always been a simple modified bench hook that serves a number of biscuit joinery scenarios. Not only does this jig give you a flat smooth surface to work off of when working with ¾” material, the jig’s fence makes a great stop for working with thicker material when using the biscuit joiner’s fence to register off of.

Would you trust this bench surface to be accurate?

http://img.photobucket.com/albums/v191/gordgraff/1.jpg


The jig starts off with nothing more than a piece of 12” X 16” X ¾” melamine and two pieces of 2”X18” X ¾” plywood. With a handful of #8 X 1 ¼” particle board screws you’ve got all you need to make this little jig.

http://img.photobucket.com/albums/v191/gordgraff/2.jpg


The first step is to take the 2” wide plywood and cut a ¼”X ¼ “ rabbet along one edge, this will act as nothing more than a place for stray dust to collect instead of the area between the fence and the work piece.




http://img.photobucket.com/albums/v191/gordgraff/3.jpg


Photo #4 show the completed fence installed on the piece of ¾” melamine using 4, #8 X 1 ¼” particle board screws. These screws are great for biting into melamine coated particle board or plywood.


http://img.photobucket.com/albums/v191/gordgraff/4.jpg


After the first plywood fence is installed, turn the piece over and install the second piece of 2”X18” X ¾” plywood fence on the underside of the melamine, this fence will become our “split fence”. Here is what the fence should look like installed but go to Photo #6 before you start installing this fence as there are a few details (screw placement) you need to know about.

http://img.photobucket.com/albums/v191/gordgraff/5.jpg


The fence is installed as one piece (screwed top and bottom) and the 2”X4” cut-out is then marked on the fence, the fence then removed and the cut-out made. I prefer to do it this way so that the fence, when its center section is removed will go back into its original place while remaining square to the sides of the melamine.

http://img.photobucket.com/albums/v191/gordgraff/6.jpg


.........................end of part one.

Gord Graff
02-24-2008, 7:29 AM
Part 2........


Photo #7 simply shows the placement of the two extra screws that are needed for extra strength in the split fence and they are installed on the opposite side to what we’ve been working on thus far.

http://img.photobucket.com/albums/v191/gordgraff/7.jpg


While the split fence is off the melamine having its center section removed, it’s a good time to sand a small radius on the ends of the fence that border the opening. I’m going to be wedging material against these ends and I don’t want them to be sharp and mar my material.

The finished split fence.

http://img.photobucket.com/albums/v191/gordgraff/8.jpg


In use, here’s what it looks like using the regular fence and an 8” wide board.

http://img.photobucket.com/albums/v191/gordgraff/9.jpg


Again, using the regular fence and a 3” wide board.

http://img.photobucket.com/albums/v191/gordgraff/10.jpg


Using the jig in the “split fence” mode to cut a biscuit slot in one half of a mitered joint is a breeze. The mitered 3 ½” wide piece of pine is simply “wedged” by mere operator pressure against the ends of the split fence to hold the piece from moving around.

http://img.photobucket.com/albums/v191/gordgraff/11.jpg


Cutting the other side of the miter joint is equally as easy. Note the ample room for the biscuit joiner to travel on.

http://img.photobucket.com/albums/v191/gordgraff/12.jpg

Cutting a slot in the end of a 3 ½” wide board that’s cut at a 90 degree angle is no big deal for this jig. All one has to do is side the board through the split fence, wedge it into the opening by applying a little sideways pressure against both fences and cut the slot, it’s that easy and it’s that fast.

http://img.photobucket.com/albums/v191/gordgraff/13.jpg


To say that this jig is easy to build and easy to use is an understatement, in real time, it took me no more than 20 minutes to make it.

http://img.photobucket.com/albums/v191/gordgraff/14.jpg


It’s my hope that this simple little jig will be able to help someone out there be a little safer, quicker and a lot more accurate than they were yesterday.

All the best
Gord

Greg McCallister
02-24-2008, 7:37 AM
My god man - what an awesome idea!!!
So simple but yet so functional.
I always hated the whole clamping down and such to use the joiner.
Now all you need is one for doing like a center shelf in a plywood case.
Yea I know, "what, he wants more". :D:D:D

John Ricci
02-24-2008, 8:47 AM
Gord, I built myself one of your jigs from the original article and have been using it quite frequently ever since. The jig actually serves double duty now that I welded up a jig to cut keyhole hanger slots and it screws down to the biscuit jig on threaded inserts creating a double duty tool. Thanks for reminding us that simple is often the best way.

http://www.sawmillcreek.org/showthread.php?t=66479

J.R.

Tim Malyszko
02-24-2008, 9:18 AM
Thanks for posting. This jig will really come in handy.

richard poitras
02-24-2008, 9:39 AM
Gord, nice posts on the Biscuit jointer jig and the Pine Hall Mirror video… I was just wondering if you have any close up photos of the deluxe Biscuit jig you use in the video with the toggle clamps on it? And any info on size and placement.. Thanks Richard

J. Z. Guest
02-24-2008, 9:45 AM
Thanks for posting that Gord. I subscribed to it, and if I ever get a biscuit joiner, I'll surely build it.

One question: What are particleboard screws? I've never specifically looked for them, but I would think they'd be popular enough that they'd be all over the place like drywall screws. (melamine & particleboard furniture is as popular as drywall, I'd say!)

keith ouellette
02-24-2008, 9:53 AM
Wow! I guess I do want that auto graph after all. You could have sent that idea into popular woodworking a few months ago and won a free domino jointer.

Very good instruction also. Thanks.

terry hansen
02-24-2008, 10:03 AM
I find these confirmat screws from McFeelys (and others) to be good at holding particlebaord/mdf http://www.mcfeelys.com/confirmat-assembly
(no affilation with McFeelys).
I made this jig for use with a domino and it works just as advertised and much better and cheaper than the plastic adaptors Festool sells.

Phil Thien
02-24-2008, 10:15 AM
Pure Genius!

David Sallee
02-24-2008, 11:54 AM
Thanks for posting this Gord... Now, off to the shop to make one ;) .... EVEN though I don't have a Biscuit Jointer yet... :eek:

Dave

Chris Padilla
02-24-2008, 12:59 PM
Simple jigs are always the best! Awesome job and thanks for posting, Gord!

Something I've noticed regarding biscuits: Sort out your biscuits ahead of time: some are really tight, some really loose, others are just right.