Precision Spinning Tops

Spinny-Doo is a precision rendition of the world's oldest toy, the spinning top. Spinning Tops are mesmerizing, fun, and educational. Not just enjoyed by kids, adults too find spinning tops to be a great ornamental desk toy, a stress-relief outlet, and enjoy spinning them while on the phone, thinking, or relaxing.

Spinny-Doo Precision Spinning Tops are designed for the spinning top connoisseur who demands high performance and long spin time, but they are also elegant with smooth proportional curves, and give a very satisfactory sense of high quality.

Precision Means Performance

Being a precision made product, the Spinny-Doo Precision Spinning Top production proceses is strictly controlled to ensure every Spinny-Doo meets our high standards. You can expect your Spinny-Doo Precision spinning top to give you long spin times easily up to seven minutes, and with a practiced spin, spin times can be well over seven minutes. The current world record for a Spinny-Doo spinning top is 9 minutes 55 seconds!

We claim Spinny-Doo Precision Spinning Tops will Spin Around the Seven Minute Mark. Our packaging says up to seven minutes, but evidence shows over seven minutes. As you can see from customer contributed videos, our performance is proven. Our tops aren't designed to merely look good, they are designed to perform exceptionally well. Who wants a top that just looks good? Why not get one that looks good and actually spins well! You can have both with Spinny-Doo Precision Spinning Tops.

Quality Precision Spinning Tops

We take pride and care to ensure every precision spinning top meets our strict quality standards. Each precision spinning top you receive is evaluated for both performance and asthetic qualities. We would rather scrap a spinning top than sell an inferior product.

Spinny-Doo Precision Spinning Tops are World-Famous

We have been providing Spinny-Doo brand precision spinning tops to customers all over the world for nearly six years and have a substantial following of extremely happy customers. We frequently get emails from our customers telling us just how much they love their new spinning tops, and and very often get new customers who heard about us by word of mouth.

Spinny-Doo Precision Spinning Tops For Your Desk - Executive Desk Toys

Spinny-Doo is visually very elegant and proportionally designed - an excellent ornamental addition to your elegant pen, lamp, and ornamental picture frame. Our customers tell us how the Spinny-Doo on their desk never sits still. People are always coming by to give it a spin and see how long it goes.

Spinny-Doo Precision Spinning Tops For Fidgeting

While not strictly a fidget toy, Spinny-Doo Precision Spinning Tops are for fidgeters. There's nothing more satisfying than spinning a Spinny-Doo while on the phone, thinking, or relaxing. Your colleagues will start showing up at your desk more often just to get a chance to play with your precision spinning top. Don't be surprised if you don't get your Spinny-Doo back again!

Spinny-Doo Precision Spinning Tops Are Toys For All Ages

Yes, Spinny-Doo Precision Spinning Tops are Toys. But that doesn't mean it must be for kids! We find that men between the ages of 18 ~ 55 find Spinny-Doo Precision Spinning Tops incredible to watch and play with because they appreciate the underlying physics of spinning tops and know that beyond the simple exterior lies complex mathematics that explain how the gyroscopic effect of spinning tops defies gravity and stabilizes them during their spins. Kids learn the principles of gyroscopic motion and precession all the while having fun seeing who can spin theirs the longest.

Spinny-Doo Spinning Tops Are Made in Canada

Spinny-Doo Spinning Tops are Proudly and Exclusively Made in Canada. Spinny-Doo is a small private family owned business run by one man, yet "we" still speak in the general plural corporate entity sense because it sounds better for marketing ;-) Here, "we" design, manaufacture, package, ship, market, draw, and dream about Spinny-Doo Precision Spinning Tops. We do all this right here in Canada, and we're very proud to say our products are "Made in Canada"

Spinny-Doo Spinning Tops Make Perfect Gifts for Men. Gifts for Him

Buy a Spinny-Doo Precision Spinning Top Online Today and give the gift of spinny-doo precision spinning tops to a friend, loved one, colleague, or give them out as prizes or tokens of appreciation from an employer to an employee. They also can be marked with a corporate logo or slogan and given out as a marketing tool or marketing gift. Spinny-Doo precision spinning tops are high-quality, elegant products that make gift-giving so easy.

Spinny-Doo Spinning Tops are Great Christmas Gifts Ideas

Christmas is just around the corner! Buy a Spinny-Doo Precision Spinning Top Online Today as a Christmas Gift (even a belated Christmas Gift)

Engraving Attempt #2

After shopping for spring-loaded engravers and finding that the good ones are hundreds of dollars (and still aren't thin enough to get down beside the crown), I started thinking about making my own. After humming and hawing over what material I wanted to sacrifice, I thought... why not just try a straight piece of carbide?

So I rummaged around the end-mill tray again and found a couple of options

 

  • Far left: An ordinary fine but unbroken endmill (so don't want to scrap it)
  • Mid-left: A nice little HTC carbide dovetail that I broke by banging another toolholder against it :-<
  • Mid-right: A once perfectly fine carbide chamfer/spot drill at $25 a pop. Can remember how I wrecked that one.
  • Far right: Spotting drill. ... Meh.

 

The HTC was the cheapest (ebay score) and while broken but still somewhat useable, the carbide spotter still had lots of side-milling life in it, and I liked that the HTC's tip already had nearly the point I wanted.

The carbide bits were also good in that with my kwik-switch small collet holder, I still had nearly 3/4" of shank to hold onto after clearing the Spinny-Doo's crown.

Next was to rough away the dovetail to a 60-degree angle so it will clear the inside of the rim when scribing the plateau. You'll just have to trust me on that one. Don't you love paint markers for tempoarary markup? When they work, that is.

So after five minutes, a lot of dust and grit in the eyes (even with safety glasses), and an 1/8 of the wheel gone, the dovetail went from the one on the left, to the one on the right.

Now we're cookin'.

With the tip at roughly 60 deg (to clear the 50 degree angle in the plateau - that little angled ledge on the left of the engraver above), I needed to refine the tip and make it concentric with the spindle. For this, I use my exceptionally expensive and highly under-utilized Japanese Nikken 5AX-120 rotary/tilt table.

I mounted a POS diamond sharpening plate in the four-jaw, the ran back and forth in X until the runout was elimnated. Then I dialed the table back to 45 degrees (for a 90 included angle) and honed the tip.

and voila! Not pretty, but perfectly concentric and 90 degrees.

Next, I ran two jobs. The first with the spindle running at 4000 rpm, and the second with the spindle at 0 rpm.

The first pass worked reasonably well. The results were greatly improved over the previous cutter's hack-and-slash job, but I'm not fond of running my old spindle constantly at its highest rpm.

\

Not too bad. Not even close to production quality, but quite an imrpovement over the first attempt. Here's the new result:

And a closeup

It's still mushing the aluminum around and leaves a built-up edge over the characters that feels rough to the fingers and comes off when scratched. I want perfection, and this is not it.

The second attempt ran the same job with the spindle off. The results were... different... but not better. This time, the lines were slightly finer but the aluminum was still mushed around resulting in a failure.

I could blame some of this on the toolpath, my machine and any backlash I haven't corrected for, or the speed, feed, and rigidity of the setup, but all the evidence isn't in yet. More experiments are needed.

Until next time, keep spinning.

Torin...

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