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July 06, 2021 Chris Butterfield

Hi everyone!  

It has been quite some time since I've done any posts on here, but I wanted to start getting into the habit of doing it more routinely.  I've also started to attempt to create some videos for posting on YouTube.  I have have quite a number of requests for pictures and/or videos of the machining process, and thus have started to do some video production.  Here's the latest video, and please subscribe to the channel as I will be working hard to add new content as well as get better at creating content!

 

Also, here are a few pictures of a custom spinning top I recently machined for a customer.  I only spun it once, but it went over 17 minutes!

Two-piece stainless steel and titanium top

First, the outer 'shell' and inner 'shell' of the top was machined.  The outer was made from 303 stainless steel, and was about 1.5" in diameter.  The inner was grade 5 titanium, about 1" in diameter.

Two-piece stainless steel and titanium top

The parts were machined to be a light press fit, and were pressed together.

Two-piece stainless steel and titanium top

Next, a stem made from 7075 aluminum was machined to fit and pressed into the inner 'shell'.  I then machined the outer diameter of the top to have a bull-nose profile using my shop-made ball/radius turner.

Two-piece stainless steel and titanium top

Here, the top has been completely finished, with the exception of the step, which still needs to be parted off and machined.

three-piece stainless steel, titanium and aluminum spinning top 

Here the top is complete!

three-piece stainless steel, titanium and aluminum spinning top

three-piece stainless steel, titanium and aluminum spinning top

A couple more pics of the completed top!

 

Thanks for reading,

Chris

 

 




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