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The S.R. "Steve" Johnson Forum Specialized knife making tips, technique and training for "ultra precision" design work enthusiasts.

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  #1  
Old 04-08-2012, 01:02 PM
rick c rick c is offline
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Squaring guard slot

I have come up with a way to square a guard slot with out using a file. It's easy and the corners are nice and sharp. I start by slotting the guard with a 1/8" endmill. Then chuck a square rotary broach(from Polygon Solutions) in the mill. No power needed just the down motion of the quil. Drop the bit into the slot and move table to the end of the slot. Raise the bit and move the table .002 lower the bit and it will shave the radius left by the endmill. Raise the bit and repeat until end of guard is square.

I hope this is helpful,

Rick
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  #2  
Old 04-08-2012, 10:51 PM
Larry Peterson Larry Peterson is offline
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I don't know about the other folks, but I am impressed!!!

Thank you for sharing, Larry Peterson
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  #3  
Old 04-09-2012, 08:15 AM
Brad Johnson Brad Johnson is offline
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Ditto, on being impressed


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Old 04-09-2012, 08:52 AM
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Steve Steve is offline
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Looks like a great tip. Thanks, Rick. Maybe you can list a supplier for this item?


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Last edited by Steve; 10-11-2012 at 09:15 AM.
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Old 04-09-2012, 09:25 AM
jdale jdale is offline
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That seems like a big time saver......Now i just need to get a mill
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Old 04-09-2012, 05:08 PM
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T.WOLFE T.WOLFE is offline
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why would you want the slot square?
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Old 04-09-2012, 09:49 PM
rick c rick c is offline
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Quote:
Originally Posted by Steve View Post
Looks liek a great tip. Thanks, Rick. Maybe you can list a supplier for this item?
You can get the bits from Polygon Solutions (239) 628-4800.The stock sizes are $54.00 and will go through .400" stock.They will grind a custom size for I think $20.00 more and can make it long enough to go through .800" stock.

Rick
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Old 04-09-2012, 09:52 PM
rick c rick c is offline
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Quote:
Originally Posted by T.WOLFE View Post
why would you want the slot square?
T.Wolfe,

I keep the back of a Chute knife square.

Rick
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Old 04-09-2012, 11:07 PM
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Cool, Rick. Maybe they could make one with a radius to fit the back of my rounded choils. I'll check them out. I think I lost their contact info.


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Old 04-10-2012, 03:25 PM
Blueheeler Blueheeler is offline
 
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Hi, Gentlemen,
That is a great technique. Could we have some comments on other uses of the mill? I'm new in the knifemaking world. I have some ideas, but I'd like to hear from the experienced hands.
Thanks,
Chris
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Old 04-12-2012, 03:18 PM
Eric Branscum Eric Branscum is offline
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Rick that is a great tip. I'm working on some chutes so I will be trying that one.
Thanks!
Eric
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Old 04-13-2012, 09:46 AM
rick c rick c is offline
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Originally Posted by Eric Branscum View Post
Rick that is a great tip. I'm working on some chutes so I will be trying that one.
Thanks!
Eric
Eric,

Let me know how it works out.

Rick
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Old 10-11-2012, 05:56 AM
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DwaneOliver DwaneOliver is offline
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Yea that IS really cool.

I gota put that on my "need" list, a mill that is.


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Old 10-11-2012, 07:04 AM
Surfaceimprovem Surfaceimprovem is offline
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Last edited by Steve; 10-11-2012 at 09:19 AM.
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Old 10-12-2012, 03:43 PM
Ed Tipton Ed Tipton is offline
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The down force could just as easily br provided by an arbor press or even a drill press. Since there is no power needed, a simple broaching action should be easy to do with any controlled pressure.
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