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brandon_:
I was given "lubricated" Pink 3D printing filament.  So I printed a Nut & Bolt to test it.  It really is slippery, allowing smoother , non friction with turning parts.   What should I print next?  
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madmaxthehatter:
Excellent I want to get one one day. 
brandon_:
I did too, after waiting years I found a Kit and got into it.  Theses are smallish in the Nixie word.  These are IN 12 tubes.  ~ 1 inch high.   IN 18 are closer to 2 inches.  But the Big daddies are 3 inches and so beautiful.  The 3 inch ones are just out of my price range and eintirely too hard to get - a single known good tube went for $1300 on E-bay a few years back.  I call it Nixie fever.  It can lead to the Tech just after it VFDs.  I was hooked on making clocks by a VFD kit shown in the movie called All That Jazz. I said someday, about 3 years ago I made a nice VFD called the Ice Clock Kit.  Let me know if you have any questions Minimum clocks run ~$100 just for the workings, then you need to make a case and things can go up form there. A typical project will get to $300 - $500 fast.