qpwoei12:
Ano’d Lasers are out
I went and took a peek. It did seem a little strange when I first heard that the Laser had and entirely stainless inner cup. I can’t even imagine how complicated that would be to make, and then for it to sell for only $200 made the skeptic in me come out.
YoyoGeezer:
Do you actually possess A Laser? If not, then looking at pictures is not going to be definitive.
I broke-out the big magnifier and yes - there is a small seam just where the inner “ring” meets the cup. This is not the whole story, however. While the inner “ring” and the cup appear to be separate machined pieces, they do appear to be made of the same material as each other, while the shell is clearly Aluminum - which I think is NOT 7075.
My Take: The outer shell is 2000 series aluminum with a stainless steel inner-ring and cup. I base this on “taste”. Aluminum is tasteless; it creates no sensation on the tongue whatsoever. Stainless, however, creates a slight tingling due to the properties of the metal. The inner ring and the cup both “taste” the same, but differently than the outer shell.
So, Where the ring and cup meets, is very thin. I think they could not make the inner cup in one-piece because the seam area would be too delicate. Therefore, they machined the inner-cup in two pieces. The difference in color that people are seeing is due to the machine-marks and the different angle that they are being seen at.
If I am right, this makes the Laser quite complicated to make.
**** On a side note - while I was looking at my Laser with the big magnifier, I noticed that the outer-shell of my raw Laser is showing some slight oxidation and galling. This is not something I have seen before. I looks as if there is some surface pitting on the outer-rims that is very small and hard to see - definitely not something you can feel. I wonder if this is a 2000 - series aluminum since I have not seen this on 6061 or 7075. Anyone else see this on their Laser?
It’s most likely 7075. 7075 is the strongest aluminum available. And yes, it will also corrode. Any raw aluminum will eventually corrode. I polish yoyos, a lot, and they do often start to pit, which is why I also took up powder coating. The rims on my Dark Magic are pitting, and I had a raw 7075 yoyo that was corroding. Get some kind of protection over it, such as a clear coat if you don’t want it corroding.
YoyoGeezer:
As someone who knows way too much about Aluminum alloys; I want to put a mis-conception to rest. 7075-Aluminum alloy comes in a number of different grades. Unlike different alloys of aluminum, different grades of 7075 refer to the hardness of the metal, not the chemical composition. This hardness is achieved by using a specific heat, for a specific time. Therefore, different grades of 7075 do not have varying densities - just varying hardness. A yo-yo made out of different grades of 7075 would perform no differently than a solid, single grade 7075 yo-yo of the same shape and weight. The only difference would be resistance to damage.
Please, no more talk of “different grades of 7075” being used to create a bi-metal yo-yo. It just does not make sense.
Sorry for the rant… :-[
I thought your thoughts exactly. 2 diff types of 7075 sounds pretty dumb
Bina
August 5, 2014, 8:15pm
25
So talked today with Kengo Kido, Laser is 7075 body with steel ring(and it’s just ring, not whole cap)
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