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NWTops
93
NW Tops
Dec 9, 2017
Hey everyone! All Columbias are on their way!
Thanks for all your support 🤘 Matt and Jen
Nargan
123
Dec 11, 2017
NWTopsReceived my 4th NWTops top today. Got the tungsten Columbia. Holy cow, this thing effortlessly goes forever.
glennac
1363
Dec 13, 2017
NarganYep! Got my Copper one yesterday as well. Love it! It just lazily spins, & spins, & spins. My Jefferson and Yakima are hyper-active children compared to the Columbia. It’s a delightful contrast.
NWTops
93
NW Tops
Dec 13, 2017
glennacAwesome and thank you, sometimes we forget they are spinning till the click at the end 🤘
NWTops
93
NW Tops
Dec 13, 2017
NarganThanks 🙏 Have fun with her!
Nargan
123
Dec 19, 2017
NWTopsAh, I actually don't get that with my tungsten version. It pretty consistently slows to a standing stop. :)
NWTops
93
NW Tops
Dec 19, 2017
NarganGotta see a photo or video🤘
Nargan
123
Dec 19, 2017
NWTopsPhoto or video? I can do you one better and give you both a photo AND video I just took:
https://i.imgur.com/wFQmoPK.jpg
https://youtu.be/MTawgfrQzkI
It doesn't matter which mirror or lens I put this on. If I get a reasonably smooth initial spin and don't bang into the desk near the end of the spin, it'll stop like this. Out of the 10 tops I own, this and a Vorso Mk1 copper/ceramic are the only ones I can get to stop like this.
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NWTops
93
NW Tops
Dec 19, 2017
NarganA W E S O M E ! Can we use on IG or FB?
Nargan
123
Dec 19, 2017
NWTopsSure, use them wherever you want to. Spread the love of NWTops. :)
NWTops
93
NW Tops
Dec 19, 2017
NWTopsTY! Why can't I ever get one of mine to do that? <- thinking to my self as I scream at YouTube "Look at that Jen!"
Nargan
123
Dec 19, 2017
NWTopsThe Vorso top took days of work trying to balance it to get it to that point. The Columbia had a low speed flutter at first but all it took was a bit of time polishing some of it with a "Sunshine Cloth" and it just started doing this. No idea. I'm not complaining though.
DenisB
107
Dec 19, 2017
NarganI'm curious about your best spin time (and at what temperature).
Nargan
123
Dec 19, 2017
DenisB17:35. No idea what the exact temperature was but it was on a bare (no oil) cosmetics mirror at room temperature which had to be between 66-70 degrees.
Martin__S
4
Dec 19, 2017
NarganI assume you could receive way longer spinning times with a lense and some skin grease. Probably the mirror is pretty abrasive which causes the flat spot that allows a standing stop.
Nargan
123
Dec 19, 2017
Martin__SYeah, I also have lenses in both 20cm and 50cm focal lengths that I use with FrogLube.
glennac
1363
Dec 19, 2017
NarganWhich makes me think you are “flat-spotting“ the tips. Repeated standing stops notoriously indicate that your point has a flat spot at the tip.
Nargan
123
Dec 20, 2017
glennacHmm. That wouldn't be good. I mean they do often come to a stop on mirrors and 20cm focal length lenses w/ Froglube oil. 50cm, no. I can't SEE flat spots on the tips but don't know how small they would be. Here: https://i.imgur.com/nuiWtw0.jpg
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EDIT: Sorry about not clearing the dust off first before breaking out the macro lens. :)
DenisB
107
Dec 20, 2017
NarganIt's very difficult to see a flat spot on a reflective surface such as ceramic or WC. I saw one once on a white, matt Alumina Oxide ball, using a small 60x microscope (my fault: I spun it with a string in order to get higher rpm and longer spins - after that, spin time dropped from 18+ to 11-). You can indirectly suspect a flat spot if your spin times diminish wrt to your initial ones, but this is unlikely to happen with ceramic in only a few days, unless you did something really wrong with your top. From your video, it seems your top is well-balanced, as there's very little wobbling at the end of the spin; considering the design and the good balance, it should easily reach 20+ mins; if it doesn't, then you can suspect (and only suspect, not deduce) a flat spot. Like Glennac, I tend to consider standing stops as not so positive signs in general (except for planetary spinners and their large balls), but there's always the exceptional possibility of a particularly good balance.