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Super-Simple Fence Micro-Adjuster

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Project by SebringDon posted 11-08-2013 12:52 AM 3291 views 17 times favorited 11 comments Add to Favorites Watch
Super-Simple Fence Micro-Adjuster
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I’ve been wanting a micro-adjuster, but the ones for sale seemed expensive for the functionality, and the ones I had found plans for were fancy projects with t-track, dual fences, and the like. I knew there had to be a clean and simple way to get the same functionality without either paying an arm and a leg or spending two days in the shop. This is what I came up with.

Run a 3/8”-16 carriage bolt through a tee-nut in a scrap of plywood anchored to the side of the table. Make a place on the fence for the head of the carriage bolt to rest against, across the fence from the bit opening. Add a real handle to the other end of the bolt, instead of the acorn nut, which was all I had on hand.

Connect the fence and anchor for the bolt with a spring to maintain tension against the bolt head. My fence pivots on one end; if you have sliding fence you may have to make adjustments to the design.

Now turn the bolt 1 turn for each 1/16” adjustment you want, or a quarter-turn for 1/64”. It also makes sneaking up on a perfect fit easier and big bits you want to cut in several passes are made as simple as turning a knob between passes. Total cost: a spring and some other bits from the scrap pile and the hardware drawer.

I made mine removable for those times I use the table without the fence.

-- Don





11 comments so far

View Mark's profile

Mark

471 posts in 694 days


#1 posted 11-08-2013 03:27 AM

Hellofagood idea. The spring is a excellent add on.

-- Mark

View 489tad's profile

489tad

2445 posts in 1731 days


#2 posted 11-08-2013 03:55 AM

Pretty slick.

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

View Ken90712's profile

Ken90712

15144 posts in 1908 days


#3 posted 11-08-2013 10:45 AM

That’ll work, well done.

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

View SebringDon's profile

SebringDon

95 posts in 660 days


#4 posted 11-08-2013 01:21 PM

It gets the job done and was quick and simple to implement.

-- Don

View HuckD's profile

HuckD

205 posts in 434 days


#5 posted 11-08-2013 01:53 PM

Nice, simple and functional. Good job.

-- Time is what keeps everything from happening all at once.

View prospector45's profile

prospector45

132 posts in 450 days


#6 posted 11-08-2013 02:46 PM

Great idea. I am now headed to the shop to duplicate your design.

-- Skilled craftsman are not cheap, cheap craftsman are not skilled. Bert, Wooster

View Richard's profile

Richard

1039 posts in 1410 days


#7 posted 11-08-2013 08:30 PM

Just exactly what I needed , I had been over thinking how to do this after seeing some of the ones for sale.

View rackjabbit's profile

rackjabbit

25 posts in 627 days


#8 posted 11-10-2013 01:23 PM

Sweet thinking outside the box.

-- Once the dust settles, breath and behold the beauty of the wood.

View KelvinGrove's profile

KelvinGrove

951 posts in 632 days


#9 posted 01-04-2014 02:16 AM

Including this on the table I am building right now.

-- Tim P. Calhoun GA. Don't cry because it's over, smile....because for 7 glorious miles, everyone thought you were the real bus driver!

View oldnovice's profile

oldnovice

3845 posts in 2087 days


#10 posted 02-25-2014 05:02 PM

Good project, for better results in your shop!

I see that you are a believer in the KISS, Keep It Simple Stupid, principle!

A U.S. Navy acronym from the 1960’s!

The KISS principle states that most systems work best if they are kept simple rather than made complex; therefore simplicity should be a key goal in design and unnecessary complexity should be avoided. The phrase has been associated with aircraft engineer Kelly Johnson (1910–1990). Wikipedia

-- "I never met a board I didn't like!"

View ChipsCubed's profile

ChipsCubed

3 posts in 135 days


#11 posted 07-12-2014 06:53 AM

The spring isn’t just an add on. It is an essential feature if you want accuracy. The Tee nut and bolt will have a lot of backlash. The spring takes up that backlash so the fence stays at the same place when the knob is turned to the same place.

This is extremely clever in it’s simplicity.

Paul A.


Hellofagood idea. The spring is a excellent add on.

- Mark


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