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What was the last thing you made?

A pulley is born

Blank round of 6061-T6 aluminum barstock:
20190402_145202.webp



Rough OD cuts to size the blank:

Yes, that is smoke coming off the cutting oil.


20190401_211636.webp



Rough machined outside diameters:
20190401_212648.webp


Rough cut grooves:
20190401_214552.webp


Semi finished grooves:
20190401_215957.webp

After a thru hole was drilled, it was reamed to final size in order to make an accurate fit to a motor shaft:
20190402_144407.webp

Next, a cross hole was drilled for the set screw:
20190402_144203.webp
20190402_144211.webp

My digital positioning readout pictured above was used to center the hole in the bore and pulley groove:
20190402_144224.webp


After drilling, the threads were tapped for the set screw that fixes the pulley to the motor shaft:
20190402_144446.webp
 
The site won't allow over 10 images to a post, so here are the final images
All front features completed:
mostly finished work.webp


After the part was removed from the machine, the rear of the pulley was machined after fixing it to a mandrel to ensure that those surfaces remained true:
20190403_141503.webp
20190403_141515.webp
20190403_141554.webp


This pulley was custom sized in order to drive my antique wood lathe I recently restored:
20190309_180012.webp


It had to match the original to maintain correct drive belt tension on all four grooves of the original pulley:

original.webp
 

Attachments

  • 20190403_141438.webp
    20190403_141438.webp
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The site won't allow over 10 images to a post, so here are the final images

Complex and precision parts. Impressive.

One question. If someone requested something like a worm gear to precise specifications, could you make such a thing as well? Just wondering...

In the coming zombie holocaust you may become a VIP. ;)
 
Complex and precision parts. Impressive.

One question. If someone requested something like a worm gear to precise specifications, could you make such a thing as well? Just wondering...

In the coming zombie holocaust you may become a VIP. ;)
That would be an affirmative, sir
 
Although not made recently, when I was involved in machinework, often you make items that you never see again after they are paid for.
Sometimes you do get to run across them in their final application.

Caterpiller contracted an outfit that free poured molded polyurethane items.
My part of the contract was to design and produce the mold to finish the bogey wheels with a soft compound for a track machine.

Three months after I delivered the mold, I got to snap these photos of a machine with wheels from my mold on a trailer in a truck stop.

0430090813b.webp
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I made a wooden folding table that I am going to use to extend my desk with. After I got the table built I noticed the table was two inches shorter than the desk so now I have got to make four, two inch tall blocks of wood and put them under the table's legs and everything should be ok.
 
20190417_180817.webp
I bought these two Easter DIY figures a few weeks ago, and I just finished painting them to look like baby or chibi versions of Bugs Bunny and Daffy Duck.
 
OK, I have to know. How do you make pizzatoast? It sounds really good.
Lol okay. You put tomato sauce on bread and then cheese on top and put it in the oven. Onions are optional. I usually just mix tomato puree with a little water and some garlic powder and black pepper to make my tomato sauce. :)
 
The other week I made a doll of the "real" Hobbes, but I had some orange fabric left so I decided to make a smaller doll of Hobbes as an ordinary stuffed tiger. But he's just adorable!*squeezes Hobbes Susie Derkins style*
20190422_143629.webp
 
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