A jig for accurately setting jointer knives

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Project by Doug posted 12-03-2010 02:10 AM 9682 views 62 times favorited 16 comments Add to Favorites Watch

This jig allows me to adjust and set my jointer knives very precisely. Other than one of the dial indicators it was constructed from materials I had on hand. The plans were taken from ShopSmith’s Sawdust Sessions web site (unfortunately the video is no longer available). While this jig was originally intended for use with the ShopSmith jointer I would think that it will also help in setting up jointer knives for most any jointer.

-- Doug

16 comments so far

View Eric_Somerville's profile


21 posts in 4344 days

#1 posted 12-03-2010 03:55 AM

I really like the concept. Do you have another link to the video; doesn’t seem to be working.

-- EDS

View TheDane's profile


6055 posts in 5116 days

#2 posted 12-03-2010 06:23 AM

Doug—Thanks for posting this.

The video is not available on the SS website, but I assume you set the gauges to zero on the outfeed table, then rotate the knife to 12 o-clock and adjust so both gauges are at zero?


-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View lanwater's profile


3113 posts in 4387 days

#3 posted 12-03-2010 07:22 AM

This jig is definitely needed in my shop.
How do you use it? I tend to think in the same lines as TheDane.

-- Abbas, Castro Valley, CA

View Ken90712's profile


18113 posts in 4642 days

#4 posted 12-03-2010 11:51 AM

Great tool and intersting web page thx for the post!

-- Ken, "Everyday above ground is a good day!"

View HalDougherty's profile


1820 posts in 4690 days

#5 posted 12-03-2010 02:17 PM

Thanks for the project. I use a magnetic base and a dial indicator now, but the design you’ve found would be a big improvement. I like the increased contact area of the metal bar stock. You don’t have to hit the bottom of the round tip on the indicator. It’s easy to get off a couple of tenths.

-- Hal, Tennessee

View helluvawreck's profile


32122 posts in 4320 days

#6 posted 12-03-2010 02:48 PM

Looks like a pretty good jig and I bet that it works very well. Good work.

-- helluvawreck aka Charles,

View 489tad's profile


4153 posts in 4465 days

#7 posted 12-03-2010 03:49 PM

Great idea. Thank you.

-- Dan, Naperville IL, I.G.N.

View GaryL's profile


1099 posts in 4284 days

#8 posted 12-03-2010 03:54 PM

I really like the idea of two dial indicators. This would speed the set-up process a bit rather than sliding back and forth with one. Thanks for posting.

-- Gary; Marysville, MI...Involve your children in your projects as much as possible, the return is priceless.

View EEngineer's profile


1151 posts in 5067 days

#9 posted 12-03-2010 08:09 PM

I like this!

I’ve been tossing ideas around for a while trying to get this right and it never quite came together for me. I’m gonna steal this idea for the rockwell jointer I am refurbishing.

-- "Find out what you cannot do and then go do it!"

View StickleyStyle's profile


73 posts in 4688 days

#10 posted 12-03-2010 09:52 PM

Cool idea, I think I’ll have to make something like that. A question for anyone familiar with the common 8” Rockwell/Delta jointer: There is a threaded hole on the outfeed table and plain hole on the knife holder at TDC for each knife when it’s in the 12 O’clock position. I believe there is some sort of tool/accessory that holds the knife holder in position preventing rotation. Has any seen these?

View bigike's profile


4059 posts in 4742 days

#11 posted 12-31-2010 03:57 PM

very cool jig

-- Ike, Big Daddies Woodshop, http://[email protected]

View Rob Vicelli's profile

Rob Vicelli

109 posts in 4145 days

#12 posted 01-17-2011 03:39 PM

Just did my blades with 1 dial indicator. This would have really speed things up. Very nice!

-- Rob V

View tdv's profile


1203 posts in 4523 days

#13 posted 01-17-2011 10:44 PM

Brilliant! what a sensible approach, Favourite, I have mine half made waiting for another dial indicator.

-- God created wood that we may create. Trevor East Yorkshire UK

View NBeener's profile


4816 posts in 4627 days

#14 posted 01-17-2011 10:48 PM

Great jig. Great ingenuity !!

For any looking on … I’ve also seen numerous mentions of this simple method (quoted, in this case, from DustDawg, on this thread )

I have an 8” Delta X DJ20 which required all of the blades to be changed after running a board through with a hidden nail. A fellow woodworker posted this method on Sawmill Creek and it works flawless for me:

“I took a piece of 1/4 plate glass 5 1/4” x 12”
and super glued 4 rare earth magnets to it.
2 to hold the glass to the out feed table 2 to snatch the knives”.

The magnets hold the knives to the glass which is on the same plane as the out feed table.

Purchased the knives from Global Tooling and also saved a good bit of money:

Simple and Cheap

Good Luck,

-- -- Neil

View Doug's profile


1304 posts in 4214 days

#15 posted 01-18-2011 01:36 PM

I appreciate all the compliments. The only thing that I can take any credit for is posting it on LJs. It’s an encouragment to me to know that others are benefiting from it.

-- Doug

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