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Blade, fence, & miter slot aligned? Simple Indicator

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Forum topic by USCJeff posted 2605 days ago 1775 views 0 times favorited 7 replies Add to Favorites Watch
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USCJeff

1044 posts in 2663 days


2605 days ago

I should say that this is not my idea. I got the idea from something I read from a magazine or book. I can’t remember the source, but my jig is essentially the same. All you need to do is size a piece of stock to fit snuggly in the miter slot. Mortise a slot as close to the shape of your digital/dial indicator handle as possible. Slide the caliper into the slot. Secure it using a screw from the top. Pick a reference tooth and move the caliper until it touches the tooth. Record the measurement. Rotate the reference tooth to the back and do the same thing. Check the variance in the readings to determine if it is within your tolerances. This could be done for fences as well.

Caliper/Dial Indicator ig

In use

-- Jeff, South Carolina


7 replies so far

View mot's profile

mot

4911 posts in 2631 days


#1 posted 2604 days ago

Jeez, that’s a good idea! You should have told me about this years ago! It would have saved my buying every alignment jig that’s been made. LOL Thanks, Jeff!

-- You can discover more about a person in an hour of play than in a year of conversation. (Plato)

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USCJeff

1044 posts in 2663 days


#2 posted 2604 days ago

I had the same thought, Mot. I have used almost anything that measures while trying to tune up various tools. I mostly used a combo square for alignment, but it is tough to get a precise measurement since they normally only show increments of 1/8”. I still don’t remember where I first saw the idea. It’s somewhere in my stack of magazines and books. They did it two ways. I liked the above approach more as it took all of 2 minutes to make and is accurate to thousandths of an inch. The other method was for bigger calipers (12” plus) They clamped the caliper handle to the table saws miter gauge. Since it is a large caliper, it can reach the blade.

-- Jeff, South Carolina

View cajunpen's profile

cajunpen

14361 posts in 2661 days


#3 posted 2602 days ago

Thanks Jeff for the tip – going to the shop to make one tomorrow morning, AND I don’t have to spend anything to make it – I have the wood and caliper!

-- Bill - "Suit yourself and let the rest be pleased." http://www.cajunpen.com/

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WayneC

12246 posts in 2692 days


#4 posted 2602 days ago

You should submit this to one of the woodworking magazines.

-- We must guard our enthusiasm as we would our life - James Krenov

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oscorner

4564 posts in 2906 days


#5 posted 2602 days ago

Thanks, Jeff!

-- Jesus is Lord!

View USCJeff's profile

USCJeff

1044 posts in 2663 days


#6 posted 2602 days ago

Thanks all. I would submit it, but it really wasn’t my idea. I saw it published somewhere a while back.

After using it a few times, I noticed the screw was leaving a little divot in the handle. No big deal, but I decided to put an insert in the runner and use a machine screw. I also found another use for it. I was building a basic small box and needed to check for square. I placed the jig fence against one side of the box and followed the same steps as I would use in checking a blade. If the measurements are the same, the sides are parallel.

-- Jeff, South Carolina

View niki's profile

niki

426 posts in 2675 days


#7 posted 2602 days ago

Thanks for the tip Jeff

I was doing it the same but without the slot for the caliper
Your way is much better and easier

Thanks
niki

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