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Shop Trick - $10 Super-accurate Jig for Setting Dead-on 90 Degrees

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Project by ChuckM posted 07-04-2013 04:03 PM 2965 views 37 times favorited 8 comments Add to Favorites Watch

I use my dial indicator alignment jig with the miter fence to align the saw blade to the miter slots and the saw blade to the rip fence. About a year ago, I saw a video by Brian of Garage Woodworks, using a jig designed to set the saw blade at 90 degrees (Brian has released a new vid on this jig: http://www.youtube.com/watch?v=eG1HJ_JOIDs ).

While waiting for a finish to dry this morning, I decided to build a jig along his line of design. Instead of building a new jig, I simply modified my alignment jig by adding two screws, a job completed in 5 minutes (finding the long screws took a bit of time).

In addition to setting the saw blade, it can be used to set or check the squareness of a router table/drill press fence, etc. It can also be used to check if a square is true and square (assuming you have an accurate and true square to set the dial indicator jig first).

Search “dial indicator” on the common online auction sites and it can be had for under $10 plus shipping.

-- The time I enjoy wasting is not time wasted





8 comments so far

View steliart's profile

steliart

1807 posts in 1345 days


#1 posted 07-04-2013 04:32 PM

thats a need idea, great vid.
thanks

-- Stelios L.A. Stavrinides: - I am not so rich to buy cheap tools, but... necessity is the mother of inventions - http://www.steliart.com --

View Vududude's profile

Vududude

41 posts in 448 days


#2 posted 07-04-2013 04:58 PM

what did you put your dial indicator on top of to get it to sit horizontal to the jig and how did you attach it to it? like in the video you posted he had to great a groove to get it to set horizontal. thanks for the video!

View ChuckM's profile

ChuckM

501 posts in 2323 days


#3 posted 07-04-2013 05:03 PM

Thanks for the comments. I added a picture to show how the indicator is mounted on the board.

-- The time I enjoy wasting is not time wasted

View Tony Strupulis's profile

Tony Strupulis

240 posts in 1780 days


#4 posted 07-05-2013 01:48 AM

Great alignment jig!

-- Tony - http://ravensedgetoolworks.com

View GarageWoodworks's profile

GarageWoodworks

432 posts in 813 days


#5 posted 07-05-2013 03:40 AM

Awesome! I love seeing other woodworkers use this technique.

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide

View Rick M.'s profile

Rick M.

3977 posts in 1037 days


#6 posted 07-05-2013 04:19 AM

I also built a jig after seeing the Garage Woodworks video and agree 100% that it is really fast and accurate. My jig is a little different and does the following: squares the miter gauge to the blade, checks the blade for 90d, checks the blade & fence for parallelism to the miter slot; not all at the same time of course, I just add a runner that attaches with one screw. Also, instead of using two screws I just use the edge of the jig.

-- |Statistics show that 100% of people bitten by a snake were close to it.|

View Jeff82780's profile

Jeff82780

182 posts in 1651 days


#7 posted 07-05-2013 03:27 PM

cool jig. what is that holding up the dial indicator and where did u get it? pretty cool.

View ChuckM's profile

ChuckM

501 posts in 2323 days


#8 posted 07-05-2013 11:44 PM

Hi Jeff,

The dial indicator and the base came together from a dial indicator device and I removed them from the device.

Chuck

Thanks, Brian, for sharing the great shop trick, to begin with.

-- The time I enjoy wasting is not time wasted

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