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Which Spinner?

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RandyT:


--- Quote from: PL1 on January 28, 2013, 04:13:30 pm ---The down side to using a full-size wheel with the TT2 is that the greater leverage increases the odds that you'll accidently bend the spinner shaft.

--- End quote ---

That's really not going to happen, unless you really try hard to do it, and even then I doubt it.  The TT2 shaft is a full .250" diameter of hardened stainless steel, and the wheel is engaged to it over a short length.  You'd probably have a better chance of breaking the whole unit out of your panel before bending the shaft. :)

PL1:


--- Quote from: RandyT on January 28, 2013, 05:05:34 pm ---
--- Quote from: PL1 on January 28, 2013, 04:13:30 pm ---The down side to using a full-size wheel with the TT2 is that the greater leverage increases the odds that you'll accidently bend the spinner shaft.

--- End quote ---

That's really not going to happen, unless you really try hard to do it, and even then I doubt it.  The TT2 shaft is a full .250" diameter of hardened stainless steel, and the wheel is engaged to it over a short length.  You'd probably have a better chance of breaking the whole unit out of your panel before bending the shaft. :)

--- End quote ---

Perhaps I phrased that wrong.

Based on one of your older posts, I thought the reason you didn't go larger on the wheels was to minimize possible damage to the spinner.

Did I get the wrong impression or was this concern limited to the TT2 High/Low?


Scott

RandyT:


--- Quote from: PL1 on January 28, 2013, 05:56:47 pm ---Based on one of your older posts, I thought the reason you didn't go larger on the wheels was to minimize possible damage to the spinner.

Did I get the wrong impression or was this concern limited to the TT2 High/Low?

--- End quote ---

No problem.  You do fine work finding answers buried in the archives here for folks.

That concern was limited to the High-Low.  It uses an acrylic mounting plate, held on by 3 screws, and has a floating shaft assembly.  There's a lot more going on there, and extreme forces in the wrong direction on the assembly would not be good.  If it was torqued really hard with a large wheel, it could deform the track in which the shaft is floating, break the mounting plate, etc. which would never be able to happen without the additional forces the wheel is capable of applying.  We actually make special versions of the smaller wheels for the High-Low, which has a felted bottom and rests on the mounting plate, for those who absolutely insist on a wheel for that assembly.  No problems yet, so it must do the trick. 

Compared to the High-Low, the TurboTwist2 is "bulletproof".

RandyT

PL1:

Thanks for the clarification, Randy.   :cheers:

The posts that had me thinking that about the TT2 were these:


--- Quote from: RandyT on May 08, 2008, 04:32:30 am ---I actually have an 8-inch version of the Mini Racer wheels here that was evaluated for use with the TT2.  Yes, one could use it, but that extra inch of diameter allows for a lot more leverage to be placed on the spinner.

Ultimately, what made me decide against it was a matter of the higher cost to keep inventory and greater possibility of damage to the spinner (or panel) if abused.

--- End quote ---


--- Quote from: RandyT on March 03, 2007, 10:41:31 am ---The smaller diameter of the wheel prevents too much leverage from being applied.  You can't (and shouldn't try to) "lean" on it like you can a 12" Pole Position wheel, so you can't think about them in the same way.
. . .
I actually have larger ones available to me, but didn't feel comfortable offering them because they do start getting large enough to exert more force on the TT2.  Even then, I'm not worried about the TT2 as much as the panel.

--- End quote ---


Scott

RandyT:

Yes.  That's why I drew the line at 7", after putting it through the stress test.  The possible forces go up dramatically from 7 to 8, so I didn't want to risk offering the 8" ones as a standard option.

Of course, we have provided a couple of those 8-inchers by special request, but they come with a warning at no extra charge ;).

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