Indirect Measurement: Dial Indicator Holder for QCTP

Ulma Doctor

Infinitely Curious
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I had a flash of inspiration last week after making due with improper measuring devises
i had a job that required sleeving a worn bearing retainer
i have DTI's but the worn area in the housing was deeper than a DTI would indicate.
so i made tangential drop indicator readings because i didn't have an indirect method of making the measurements
this is incorrect, but i had to get an idea of the depth of damage, so i could consider sleeve dimensions.
i got through the job, using a .001" DTI, but the experience made me think of designs using a drop indicator for indirect measurement.

Starrett has a few different indirect measurement options like the 670A
1575222908604.png

but i wanted to design my own that would mount in an AXA holder

I designed and 3D printed a working prototype on Tinkercad.
I would like to share the inspired work with the peanut gallery :grin:
without further adieu, my abomination of indirect measurement in PLA


IMG_3773.jpg IMG_3774.jpg IMG_3775.jpg IMG_3776.jpg

since i have a working prototype, i'll be copying the assembly in steel next!


thanks for reading!!!
 
Looks great! would you be so kind as to share the print file?
 
Looks great! would you be so kind as to share the print file?
Hi Eddyde,
here are the links on tinkercad to download

and the fulcrum

NOTE:
i used a 1/8 roll pin and drilled the fulcrum's center bore to #30 imperial (3.3mm metric) drill to provide clearance for movement

enjoy!
 
That's some good thunk-in , like I always say necessity is the mother of invention.
 
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