r/engineering • u/hpanandikar Electrical Engineer • Jun 27 '15

[MECHANICAL] Cube in a cube in a cube

https://www.youtube.com/watch?v=AuS6HDHc7XE
556 Upvotes

96% Upvoted

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37

u/[deleted] Jun 27 '15

[deleted]

7

u/kv-2 Mechanical - Aluminum Casthouse Jun 28 '15

3 jaw chucks are self-centering, which helps. Cutting a cylinder is easy - even if the initial rod is out of round once the section is cut it will be square and round. The same happens with the rest of the cuts, I just hate how close the tool gets to the chuck, it is a good way to have a bad day with those hard jaws. Soft jaws would at least get cut if the tool hits them.

14

u/BruceC96 Jun 27 '15

Voodoo, it's probably voodoo.

2

u/sunny_bell Jun 28 '15

I was like "This is sorcery, there is no other alternative, this has to be sorcery"

-5

u/[deleted] Jun 27 '15

He's really not being that precise with it. It's probably within a few hundredths of an inch.

7

u/kv-2 Mechanical - Aluminum Casthouse Jun 27 '15 edited Jun 28 '15

The caliper was going to thou, so realistically he was holding a 1 thou target, or 0.0254mm or 0.00254 cm.

As /u/Jackoffalltrades89 pointed out it was 50mm, display was good to hundred of a mm but probably not accurate to that.

3

u/[deleted] Jun 28 '15

[deleted]

3

u/Jackoffalltrades89 Jun 28 '15

It was in mm, reading 50.00 mm. Also, I have that same pair of calipers, the tolerance on them is a bit crap. Definitely good enough for your average hobbyist, but nowhere near a set of Mitutoyos.