Outside Micrometers
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how to make an improvised inside caliper, outside caliper and micrometer caliper?
please help me... i really need the steps on how to make an improvised caliper... Thanks! God Bless!!!!!!
I guess you could make them but you can get these things online or even at a hardware store (like harbor freight) for like $10 and they will be FAR more accurate than anything you could make. But, if you insist:
For the caliper (in and out, they are the same) take an old fashioned ruler and break it in half. Place the two halves overlapping so the end of one is now covering the low end of the scale. Use a router to make a slot all the way through both for some good length (like 3/4 of the length). Use this slot as the "slide" with a bolt and washer, nut combo. The bolt shoud be very close the the slot width. OK, now you have something that can extend and retract in a parallel line and the end will cover or uncover markings on your ruler. Now you just have to afix some type of pointers on the end of the part that is going to move. I'd reccomend bent out paperclips, glued to the tip in whatever driection you want and distance out. You now have a really crude caliper that if used with care will do the job,
For the micrometer you need something different.
The easiest way is to get a c-clamp, that's pretty much what a micrometer is, and just attach a ruler to the end where you screw it in and out. You'll just need to calibrate it by closing it all the way and marking that as zero on the ruler.
Micrometer are supposed to be more accuate than calipers so if you want it more accurate you would just need to substitute a finer threaded screw into the c-clamp or make up your own c-clamp from some metal or wood. Then take some objects of known height and meaure them on your micrometer and count the number of turns of the screw you need to make to adjust between them. That will give you the height per turn. This is pretty much how they work now
Measuring Equipment WMW AG -www.wmwag.com
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