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Dial Indicator, Shopsmiths' Modified
Posted: Mon Nov 21, 2016 11:52 am
by dusty
I have been using the Dial Indicator from Shopsmith. It works well but I have always been a bit frustrated by the fact that the miter bar does not fit shugly in the miter track. This little bit of slop introduces a small amount of error. This can be overcome by simply maintaining some side pressure on the jig to keep it firmly against one side or the other of the miter track.

- Shopsmiths' Dial Indicator_l.jpg (140.76 KiB) Viewed 14841 times
Today I found myself with only a short amount of time for shop work; not enough for a project but enough to tinker. Tinker I did. Here is the result of my idle time this morning.

- Riving Knife Adjustment 007.jpg (1.96 MiB) Viewed 14841 times

- Riving Knife Adjustment 003.jpg (2.25 MiB) Viewed 14841 times
The Incra Miter Bar is adjustable in width so that the slop can be eliminated. What I have here is a kludge but it works. I am going to consider this a "proof of concept" and work on developing a better mounting method to facilitate quick, easy and reliable mounting of the dial indicator.
Re: Dial Indicator, Shopsmiths' Modified
Posted: Mon Nov 21, 2016 12:41 pm
by ecom1
Interesting idea - let us know how it goes, and if there is any play in the mounting apparatus.
Re: Dial Indicator, Shopsmiths' Modified
Posted: Mon Nov 21, 2016 1:40 pm
by ChrisNeilan
I like that!
Re: Dial Indicator, Shopsmiths' Modified
Posted: Mon Nov 21, 2016 1:45 pm
by dusty
ecom1 wrote:Interesting idea - let us know how it goes, and if there is any play in the mounting apparatus.
There will be NO PLAY in the mounting apparatus. It will be tightly secured to the face of the miter gauge. The only play in the setup will come from the miter bar moving laterally in the miter track. That must be an absolute minimum or the entire project is a bust.
When I have some thing final, I will post.
Re: Dial Indicator, Shopsmiths' Modified
Posted: Mon Nov 21, 2016 3:06 pm
by Ed in Tampa
Looking good, Dusty! Thanks!
Re: Dial Indicator, Shopsmiths' Modified
Posted: Wed Nov 23, 2016 11:58 am
by dusty
This was almost too easy to talk about. I am embarrassed,however, that I took so long to think of this. It works great. All I need to do is find either a wing nut or a knob to use for securing to jig to the miter gauge. I will then have a dial indicator that is dedicated to "table alignment".
This may not be the final version. I still have a couple ideas to try.
Re: Dial Indicator, Shopsmiths' Modified
Posted: Wed Nov 23, 2016 4:01 pm
by sehast
Definitely better than the the original which I also have as well as the Incra miter gauge. You have inspired me to do some tinkering with mine.
Re: Dial Indicator, Shopsmiths' Modified
Posted: Wed Nov 23, 2016 5:47 pm
by ecom1
Thanks for sharing - that's given me some ideas as well.
Re: Dial Indicator, Shopsmiths' Modified
Posted: Wed Nov 23, 2016 6:53 pm
by dusty
Mix this in with your ideas only maybe longer and heavier.

- Dial Indicator Mount 002.jpg (1.46 MiB) Viewed 14616 times
The spacers and washers would need to be properly sized and all the same. Those shown here are not. I'm also thinking longer to give more lateral stability. Maybe steel tubing for more weight. Brass bushings maybe.
Re: Dial Indicator, Shopsmiths' Modified
Posted: Thu Nov 24, 2016 6:30 am
by dusty
Hand selected washers to get them all the same size. Had to use a different tip than I wanted in order to get the reach. Would prefer to use a ball tip.

- Dial Indicator 2 005.jpg (1.62 MiB) Viewed 14564 times

- Dial Indicator 2 004.jpg (1.72 MiB) Viewed 14564 times
I've just been informed that "shop time has ended". There are more important things to be done today.
May everyone have a joyous day today without over indulging in the goodies.
Happy Thanksgiving