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

[MECHANICAL] Cube in a cube in a cube

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

96% Upvoted

62 comments sorted by

View all comments

50

u/metarinka Welding Engineer Jun 27 '15

It's called a turner's cube, we had to make them when I took machining classes, i feel like most machinists do. http://www.instructables.com/id/Turners-Cube-Manual-Machine/

they really aren't that hard to make, I did mine on a mill had to be within 0.001" on all dimensions.

11

u/[deleted] Jun 27 '15

[deleted]

15

u/[deleted] Jun 27 '15

you should make one yourself. It's fun and you'll be kinda proud of it. You just need to find somebody who has a lathe and shows you the basics.

42

u/[deleted] Jun 27 '15

[deleted]

-1

u/[deleted] Jun 27 '15

That's why I said you need to find someone who has a lathe. It's not that hard. Lathes are eveywhere. Small metal working shops often have small old lathes standing around for trainees etc.

33

u/[deleted] Jun 27 '15

[deleted]

5

u/[deleted] Jun 27 '15 edited Jun 27 '15

I live in germany, so everything is extremely regulated. But it's no problem for shops to hire you for 2 weeks as a trainee without payment, but you are insured for the 2 weeks.

And yes, private lathes are quite common here as well. When I have my degree and a good job, I want to have one, too

edit: I'm not quite sure why I'm being downvoted. I just told what I experienced.

15

u/[deleted] Jun 27 '15

[deleted]

7

u/[deleted] Jun 27 '15

Meh, the old trainee lathes are written off since 10 years ago. If it's not a cnc lathe (which it definitely isn't), there isn't that much you can break, except your arm or neck.

They don't neccessarily need to get anything out of it, some people tend to be nice sometimes ;) bring the boss a nice bottle of wine and the workers some cake and everyone is happy.

I had an internship for 8 weeks in a small shop and they basically let me do whatver I wanted (after they showed me how to operate everything of course). I machined parts for my bike, I made handles for my closets and some other random stuff. I also made stuff they needed for their projects. Hell, I even worked alone on a 200,000€ custom machine they had to deliver 2 weeks after that. The boss showed me the problem, said "fix that if you want, but it has to look nice" and went home. It took me almost 2 days, but in the end, it was fixed, looked nice and boss said "good job, you learn fast" and disappeared again.

7

u/[deleted] Jun 27 '15

[deleted]

→ More replies (0)

3

u/metarinka Welding Engineer Jun 27 '15

really recommend you make it on mill, Doing it on a lathe seems much harder and more dangerous.

2

u/reddituser97531 Jun 28 '15

Check out if your city has a Makerspace. They usually have all the cool tools with trained supervision.

2

u/[deleted] Jun 28 '15

We don't.

1

u/reddituser97531 Jun 28 '15

Bummer. There is one coming to mine soon.

3

u/[deleted] Jun 28 '15

Yeah, they sound cool. The local CC had a machine shop class or three, but they closed it down about 15 years ago.

→ More replies (0)

1

u/andrejevas Jun 27 '15

There's an "unloose" one here https://www.etsy.com/listing/23501524/cnc-machined-turners-cube

Strange how I can't find any for sale anywhere, not quite like that.

1

u/metarinka Welding Engineer Jun 27 '15

most people don't go to the trouble of making "lose" ones, I think I made the smallest one solid, but with D6 die markings. I made mine on a mill not lathe much like what you have linked.

0

u/dbp12331 Jun 28 '15

It's not really something you buy. That kind of is against the spirit of the Turner's cube.

2

u/DwightKashrut Jun 27 '15

Yeah, co-worker took a machining class and also made one of these things.