Double Duty Micrometer Stop Project

Great idea, integrating the two!
Yep, I'll be making one as well.

Daryl
MN
 
I just checked on my rotary table is (90 to 1) or 4 degrees per rotation of the crank. I used a 50 division
dividing plate and rotated 1.8 turns to get the 7.2 degree angular rotation for each mark. This provides
a .001 inch advance of the 7/16 x 20 threads. This whole dividing plate thing with the 90 to 1 gearing
is somewhat cumbersome. There probably is a chart somewhere but I have not seen it yet...


Another way would be to use the 50 hole dividing plate directly on a spin index directly. One would
have to make a jig to mount the plate to the spin index and provide a pin to place in the holes.
I may do that just to provide more capacity to my spin indexer which is presently only capable
of 1 degree increments.

There is usually more than one way to do things, some methods being better than others.
 
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When selecting a dial indicator with a long stem such as you have here, do you have recommendations?
It was my understanding that long stemmed indicators should only be used in a vertical application.
Evidently my understanding is inaccurate.
Please confirm you are aware of differences in long stemmed indicators.

Thank you,
Daryl
MN
 
Uglydog said:
When selecting a dial indicator with a long stem such as you have here, do you have recommendations?
It was my understanding that long stemmed indicators should only be used in a vertical application.
Evidently my understanding is inaccurate.
Please confirm you are aware of differences in long stemmed indicators.

Thank you,
Daryl
MN
Click to expand...

Well, I havn't heard that so don't know. The indicator is just an inexpensive ENCO one and seems to work fine for
what I do. Shop around and find an indicator to your liking and maybe even consider something digital. One
could easily adapt a digital calipers as another thought. Even a one inch dial would be a very handy thing.
 
cathead said:
Here's my project from today. It's a micrometer stop added to an indicator holder. The micrometer stop can be
used on either side of the carriage as it can read either from the left or right. The micrometer was made with a 7/16
x 20 thread and the brass dial has 50 marks in one circumference so each mark gives a .001 movement.View attachment 99878 View attachment 99879
Click to expand...

I could have used a stop like that. The trouble was the shops had several different brands of lathes that had different shaped ways. Still a very nice project.
 
I find it is usually easier and faster to "roll your own" and I don't even smoke....
 
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