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- Nov 27, 2012
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- 7,852
Copy of a post from another forum, 8/2011
I've always wanted to make a Ti tippe top, a recent thread reminded me again. It was over 100 deg today, but I went at it anyways!:heat:
Well my first attempt is a failure! :gaah:
It looks nice, spins nice, but it won't tip over far enough to catch & spin on the post. :banghead:
The first post I made seemed to be too fat & heavy. When I spun it, the shaft would be perfectly parallel with the surface it's spinning on. So I decided to make a thinner post.
I also bored the recess in the ball deeper. The stock was 1" diameter. I originally bored the recess halfway in, 0.50". Saw a pic showing center of gravity should be below center show I bored it 0.125" deeper making 0.625".
Now when spinning the post drops down lower but still not low enough to catch the surface & flip the top over.
Success! :hurra:
Lightening the posts did the trick!
So I scaled down Chief-Yeah's measurements that he posted (thank you for those!). Mine was about 88% the size of his aluminum one & surprisingly my measurements weren't drastically off except the bore. My bore is smaller in diameter which I left as is. As Tony suspected, the wood measurements were considerably different when I compared the measurements.
Here's the very first post I made.
The second thinner post I made which I originally posted.
Here are the two posts after turning them down.
(I know, I know, extreme overhang but I didn't want to start from scratch & I managed to turn them down with out any cussing! )
The straight post is shorter than the other one & is harder to get a good spin on the top. More often it will spin pretty straight if I get a good spin. The slightly longer post with the larger diameter end is much easier to spin but rarely spins nice and vertical. As an experiment I found the steep point doesn't allow the top to lift up onto the post & spin. I would have though a smaller point would make it spin better.
But at least it is working!
I'll keep experimenting though, I think I will try a larger one & maybe some way to make it look cooler.
Others:
Carbidized then anodized.
Left: Satin Finish, Middle: Stonewashed Finish, Right: Carbidized Finish
I've always wanted to make a Ti tippe top, a recent thread reminded me again. It was over 100 deg today, but I went at it anyways!:heat:
Well my first attempt is a failure! :gaah:
It looks nice, spins nice, but it won't tip over far enough to catch & spin on the post. :banghead:
The first post I made seemed to be too fat & heavy. When I spun it, the shaft would be perfectly parallel with the surface it's spinning on. So I decided to make a thinner post.
I also bored the recess in the ball deeper. The stock was 1" diameter. I originally bored the recess halfway in, 0.50". Saw a pic showing center of gravity should be below center show I bored it 0.125" deeper making 0.625".
Now when spinning the post drops down lower but still not low enough to catch the surface & flip the top over.
Success! :hurra:
Lightening the posts did the trick!
So I scaled down Chief-Yeah's measurements that he posted (thank you for those!). Mine was about 88% the size of his aluminum one & surprisingly my measurements weren't drastically off except the bore. My bore is smaller in diameter which I left as is. As Tony suspected, the wood measurements were considerably different when I compared the measurements.
Here's the very first post I made.
The second thinner post I made which I originally posted.
Here are the two posts after turning them down.
(I know, I know, extreme overhang but I didn't want to start from scratch & I managed to turn them down with out any cussing! )
The straight post is shorter than the other one & is harder to get a good spin on the top. More often it will spin pretty straight if I get a good spin. The slightly longer post with the larger diameter end is much easier to spin but rarely spins nice and vertical. As an experiment I found the steep point doesn't allow the top to lift up onto the post & spin. I would have though a smaller point would make it spin better.
But at least it is working!
I'll keep experimenting though, I think I will try a larger one & maybe some way to make it look cooler.
Others:
Carbidized then anodized.
Left: Satin Finish, Middle: Stonewashed Finish, Right: Carbidized Finish
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