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Unread 29-04-2007, 10:23
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pic: Homemade Keyway Broaches

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Unread 29-04-2007, 10:24
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Re: pic: Homemade Keyway Broaches

beautiful! thanks for showing us such a neat idea
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Unread 29-04-2007, 11:44
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Re: pic: Homemade Keyway Broaches

very slick! now if only there were a way to make hex broaches like this...
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Unread 29-04-2007, 14:56
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Re: pic: Homemade Keyway Broaches

Quote:
Originally Posted by Nuttyman54 View Post
very slick! now if only there were a way to make hex broaches like this...
If I get access to a manual lathe with a three jaw chuck then that will be my next project...
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Unread 29-04-2007, 15:23
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Re: pic: Homemade Keyway Broaches

One year at GLR we had to put a keyway into a sprocket, and we didn't have a broach or a press in the pits. So we taped about 5 hacksaw blades together, and slowly cut the keyway into the sprocket. Took awhile, but worked out just fine.

It also cost us 5 hacksaw blades.
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Unread 19-05-2007, 20:28
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Re: pic: Homemade Keyway Broaches

Here is a photo of what else I did. I keyed two of these hubs as well as cutting a key slot in the drive shaft with a Dremel carbide cutter. Took a while, but it works!
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Unread 19-05-2007, 21:02
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Re: pic: Homemade Keyway Broaches

I've actually done this same thing but to make a knurled surface.

Grind off all but one flute, put the tap into a vertical mill and make a pass on your piece (cutting along the side, obviously). Rotate the piece 90 degrees in your vice, and make a pass again. It'll leave you with a nice knurled face that's good for gripper jaws on end-effectors.
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Unread 25-05-2007, 21:36
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Re: pic: Homemade Keyway Broaches

I love that idea and it gives a good use to old taps!

Like they say, "Necessity is the mother of invention!"
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Unread 25-05-2007, 22:20
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Re: pic: Homemade Keyway Broaches

Not bad Gabe... not bad at all!
I'm impressed.
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