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TomHerb · 06-28-2008, 11:13 AM

I have a Central Machinery (Harbor Freight) dovetail jig. Setup instructions are worthless. Been tinkering with the device and have come close to success. Doing the math with my bit, 1/2 inch 14 degree, it seems the depth to make a 1/2 dovetail and 1/4 inch gap is exactly one-half of the height of a triangle with a half inch base and 76 degree interior angle. I recall some numbers calculating a 15 degree bit also. What are the design considerations of a dovetail bit?

Router is still my name · 06-28-2008, 11:48 AM

HF so called DJ and simillar jigs are only used to make half blind dovetails.

http://www.leighjigs.com/data/D1600-Ch09.pdf

http://youtube.com/watch?v=o0Lo0YqWztw&feature=related

06-28-2008, 11:13 AM	#1
TomHerb Registered User Join Date: Jun 2008 Posts: 1 View TomHerb's Gallery	Report This Post! Dovetail jig I have a Central Machinery (Harbor Freight) dovetail jig. Setup instructions are worthless. Been tinkering with the device and have come close to success. Doing the math with my bit, 1/2 inch 14 degree, it seems the depth to make a 1/2 dovetail and 1/4 inch gap is exactly one-half of the height of a triangle with a half inch base and 76 degree interior angle. I recall some numbers calculating a 15 degree bit also. What are the design considerations of a dovetail bit?
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06-28-2008, 11:48 AM	#2
Router is still my name Registered User Forum King Join Date: May 2006 Location: Houston, TX Posts: 533 View Router is still my name's Gallery	Report This Post! HF so called DJ and simillar jigs are only used to make half blind dovetails. http://www.leighjigs.com/data/D1600-Ch09.pdf http://youtube.com/watch?v=o0Lo0YqWztw&feature=related __________________ router è ancora il mio nome Last edited by Router is still my name; 06-28-2008 at 11:55 AM.
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