Removing bezel on DTI

B

bradells

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The other day, while still waiting on new belts for my lathe, I decided to do some work on the rainy day projects.

One of which is to fix my DTI. It’s not really broken per say, just the indicator has always been bent by a few thenths.

It’s manageable, but I’d like it to be straight, and maybe change/modify out the scale behind it.

A1D5EC70-B98C-4FD6-B134-E09089836389.jpeg

I tried getting at it thru the side/bottom, but there is nothing there aside from the wrong end of a few screws holding it onto the body.

Any thoughts on how to remove the glass without breaking anything?

Thanks,

Brad
 
Sometimes the bezels are held on by a friction fit on the rotating part attached to the body of the indicator, a little careful prying underneath the bezel itself may do the trick. But, why take a chance when it really makes no difference, other than offending the eye?
 
benmychree said:
Sometimes the bezels are held on by a friction fit on the rotating part attached to the body of the indicator, a little careful prying underneath the bezel itself may do the trick. But, why take a chance when it really makes no difference, other than offending the eye?
Click to expand...

Just one of those ‘wouldn’t it be nice’ projects...

It’s in there pretty good, I don’t see any groves or recesses to pop it out either...

The picture doesn’t quite show how bad the bend is... it’s about 0.0003-4” or so, but it’s in the middle to last bit that’s curved...

Brad
 
Can you leave the bezel in the rotating part and just remove the rotating frame that holds the bezel?

joe
 
Go to longislandindicator.com and see if you can find any info there for whatever brand indicator that is. They've got a lot of it for the better brand indicators. I just bought a couple of their books on DTI repair, because I've picked up some nice indicators that need some repair and thought I'd try my hand at repairing them myself.

Here's my guess on yours. You need to remove the lens. One way of doing this is by using a suction cup, like a kid's dart from a dart gun or window suction cup for hanging things. The lens is flat when it comes out and will have to be replaced with a lens press. You'll also need a couple of small prying bar tools to remove the hand. All this stuff I'm saying is posted on the site I listed above. That site is a great resource.

Ted
 
Technical Ted said:
Go to longislandindicator.com and see if you can find any info there for whatever brand indicator that is. They've got a lot of it for the better brand indicators. I just bought a couple of their books on DTI repair, because I've picked up some nice indicators that need some repair and thought I'd try my hand at repairing them myself.

Here's my guess on yours. You need to remove the lens. One way of doing this is by using a suction cup, like a kid's dart from a dart gun or window suction cup for hanging things. The lens is flat when it comes out and will have to be replaced with a lens press. You'll also need a couple of small prying bar tools to remove the hand. All this stuff I'm saying is posted on the site I listed above. That site is a great resource.

Ted
Click to expand...


Looks like a fantastic resource! Thanks!

My only other guess was to remove the glass... if it’s ‘sprung’ In the bezel, well I guess my tinkering is done with it then...

Brad
 
I dropped a cheap indicator and the top just popped off. I put it back on by pressing it in until it snapped in place, after taking it apart thinking it would be harder. There’s not that much inside, they look highly optimized.
 
There is usually a piece of spring wire in the shape of a circle holding the entire bezel on. On the backside of the bezel, there is a small (very small) access point where you can push the spring in and slowly work the bezel off. The outside of the body has a small groove and the inside of the bezel has a small groove and the spring drops in those grooves. It is a PITA to get off, but it can be done.
 
I’m not too afraid of taking things apart...

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Well, I thought I'd log my progress in making impressive swarf piles here! Lucky you! I don't have much of equipment, a dull hacksaw, and a Sherline 4400 lathe for making circularish objects, and a milling column, so then I can change into making straightish objects that remain after I make my...
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No spring that I can see... so I believe everything is accessed thru the glass..

Tho bottom of the bezel (ie underneith) spins as well...


Brad
 
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