9th Oct 2007, 10:35 PM #1
can i sharpen carbide router bits
i was wonder is it possible to sharpen carbide router bits . if so how ?
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10th Oct 2007, 12:37 AM #2
At the risk of getting shot down by the more experienced I think "sharpening" tc router bits is a professional job due to the need to balance them. Out of balance at 20,000 revs is a bit of a challenge. You can hone them with a small flat diamond file by rubbing the flat if that makes sense - ie you do not sharpen the bevel just the flat bit. I have a medium and fine "file" which looks like a nail file with a plastic handle (ie broad and flat.) It certainly makes them sharper though will not do anything for nicks. I will be interested if anyone does have a method for sharpening them but it would be tricky I think.
All the best
10th Oct 2007, 02:10 AM #3
Pusser is correct, you can touch them up with a few strokes on the flat side with a diamond easylap stick thingo.
Just keep the number of strokes even on each carbide.....................................................................
10th Oct 2007, 12:45 PM #4
I agree with Harry and pusser, there are 2 things to watch, ONLY dress the flat face and count the number of strokes so that you do the same to each carbide insert. I regularly sharpen good bits but there's nothing you can do with badly worn or chpped bits.
10th Oct 2007, 10:56 PM #5
thanks for the feedback guy's . i'll try it with my daimond stone and see what happens
4th Jan 2008, 01:49 PM #6
Can I sharpen router bits?
JayI'm both dyslexic and paranoid. I keep thinking I'm following someone.
4th Jan 2008, 07:02 PM #7
They can be sent back to the manufacturer. I know that Carbitools will resharpen their own bits. Around $6 for a straight bit I think.
4th Jan 2008, 08:59 PM #8
Pusser has got it on the money as being right,trying to sharpen these bits yourself can also change the profile and therefore also contribute to an imbalance of the bit has has been previously mentioned.
Giving them to a saw doctor or specialist with the necessary angled gringing machine will and must be the only alternative ...trying to sharpen them yourself apart from honing which has been described can only lead to misadventure.
Everyone has a photographic memory, some just don't have film.
4th Jan 2008, 09:50 PM #9
As said above yes you can touch them up with diamond hones to regind them you need specialised equipment ie. a tool and cutter grinder plus the diamond wheels to go with it, if you were going to to many of them you could set yourself up with second hand gear for about $6000.00
6th Jan 2008, 07:19 PM #10
Not really worth it IMO to resharpen. They never as good as the original and they get blunt again quickly once they've been sharpened
6th Jan 2008, 09:21 PM #11
big-gumbo Not true a "properly" sharpened router cutter will be as good and last just as long as when new, cheap $10 cutters are throw away's but your good quality $60 plus cutters will be as good as new
7th Jan 2008, 10:04 AM #12
The only problem with sharpened bits is for pattern followers. The diameter of the bit is reduced so it is no longer exactly the same size as the bearing. It is probably not critical for the first sharpening but after a second one it is probably not suitable as a pattern follower. Otherwise resharpened bits are as good as new (well slightly undersized)I never make mistakes, I thought I did once but I was mistaken
Top 10 reasons I procrastinate
7th Jan 2008, 08:36 PM #13
I based my response on my experience with the CNC routers. A new bit will last about 100-150 sheets (2400x1200 sheet) and the bit cost about $60-90. It cost $40 to sharpen (CNC router bits have to be specially sharpened) and it only last 20-30 sheets before it starts chipping the melamime and has to be resharpened.
So not worth it in my experience
7th Jan 2008, 09:13 PM #14
Big_gumbo whom ever is grinding your cutters is not up to it find some one else.
I never had this problem when I was operating my business
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