Not my invention, but it works well on 2 flt and 4 flt end mills 1/4" and larger and is a pretty easy project to build.
http://homews.co.uk/page121.html
http://homews.co.uk/page121.html
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Easy End Mill Sharpening Jig Project
- Thread starter YYCHM
- Start date
Does it do a near factory job ? Looks good
Not even close. It only sharpens the primary/secondary angled portions of the end face, does nothing to the flutes. But I will say having it quadrupled the life I get out of my end mills. It will handle 1/4"-1" endmills and two flute are the easiest to sharpen. Four flute are a little picky to do.
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Former Member
Guest
You can also use your mill to sharpen them, with better results as it is more controllable, using similar fixtures. Basically you are converting you mill into a precision grinder. No I have not personally tried it.
Fixtures for surface grinders (if you gave the grinder)
Denkle Clone (I have a Shars one as it uses 5c collets), still learning. Does Flutes and leading edge, center cut, can but still figuring that out.
True purpose built grinders.
Journeyman Grinder.
Final true dedicated CNC grinder regrinders if you have the budget (ie win the lotto).
Important thing to remember HSS regular grinding wheels, Carbide, diamond wheels a must.
Fixtures for surface grinders (if you gave the grinder)
Denkle Clone (I have a Shars one as it uses 5c collets), still learning. Does Flutes and leading edge, center cut, can but still figuring that out.
True purpose built grinders.
Journeyman Grinder.
Final true dedicated CNC grinder regrinders if you have the budget (ie win the lotto).
Important thing to remember HSS regular grinding wheels, Carbide, diamond wheels a must.
Former Member
Guest
Denkle Clone or Journeyman likely the best.
Hey Craig are you still using the sharpening jig? How has it worked for you? This is a project I might bump up on my list, as I am moving I'm finding more of my squirreled away end mills and drill bits that need sharpening.
I think it's worth building. I have quite a few endmills I use that are on their 3rd or 4th re-sharpening.
Harold Hall Mill Bit Sharpener
It Works!!!!. Here is a link to the instructions and prints, http://homews.co.uk/page121.html It worked out pretty well, I changed the measurements to imperial (ish) and used what material I had on hand. The M4 and M5 were changed to 10-32 and I used 5/16 NC bolts instead of the M6 stated. Where...
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Weldon makes a endmill sharping fixture for surface grinder but probly could be set up for use with dremel or bench grinder. There not overly expensive I bought one bit ago but haven't used it yet.
Weldon Tool Sharpening Fixture End Mill Grinding w/ Tilting Table Sub Base | eBay
Find many great new & used options and get the best deals for Weldon Tool Sharpening Fixture End Mill Grinding w/ Tilting Table Sub Base at the best online prices at eBay! Free shipping for many products!
www.ebay.com
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Looks very interesting. The real deals are too much money for how often I'd use it. This one is still way too much coin. But at least I can see the makings of a home made unit that could do the basics.
But first I have to learn to sharpen drill bits......
Well guess what I found
Yep it’s the base for it Looks like a basic Sine Plate nothing special or hard to make.
( They even give you the measuring units. )
Weldon End Mill Grinding & Sharpening Fixture Tilting Sub-Base | eBay
As shown, in good, sound condition with scattered cosmetic wear.
www.ebay.com
( They even give you the measuring units. )
