Need some advice about a bit. - Router Forums
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post #1 of 25 (permalink) Old 04-07-2015, 10:16 AM Thread Starter
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Default Need some advice about a bit.

Hi, I need a particular router bit to do a job on MDF, my previous one is burned, not sure why, maybe it was a bad quality or maybe I used too much speed.. who knows.

Alright, first things first, I need to make a groove on a 12mm MDF piece, and the groove is 30x100x9 (millimeters) 1.2x4x0.35 (inches).

So I need to make a jig for this, there is no problem in that, I got plenty of info about it. The problem is, I can't find a proper bit for the job, since I don't want to make too many passes, I'd like to use a 15mms (diameter) that fits into my router. (1/4").

What I can find is this one:



But since they are 6mms, so I would have to make a lot of passes. to finish the job.

Anyway, maybe that one will do, however MDF is very soft and easy to route.

You tell me what's my best option for this particular job!.

Thanks.
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post #2 of 25 (permalink) Old 04-07-2015, 10:33 AM
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Quote:
Originally Posted by Artemix View Post
Hi, I need a particular router bit to do a job on MDF, my previous one is burned, not sure why, maybe it was a bad quality or maybe I used too much speed.. who knows.

Alright, first things first, I need to make a groove on a 12mm MDF piece, and the groove is 30x100x9 (millimeters) 1.2x4x0.35 (inches).

So I need to make a jig for this, there is no problem in that, I got plenty of info about it. The problem is, I can't find a proper bit for the job, since I don't want to make too many passes, I'd like to use a 15mms (diameter) that fits into my router. (1/4").

What I can find is this one:



But since they are 6mms, so I would have to make a lot of passes. to finish the job.

Anyway, maybe that one will do, however MDF is very soft and easy to route.

You tell me what's my best option for this particular job!.

Thanks.
too fast in the RPM's..
too much in a one pass bite...
feed rate too high or too slow...
bit is loading w/ the MDF's glue..
low router power...
all the above...

your measures... which one is which... (W/H-D/L)
width...
depth...
length...

are 1/4" shank bits all you can handle???

you have got to get you a dado blade...

http://www.freudtools.com/index.php/...shank=1%2F4%22
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This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”

Last edited by Stick486; 04-07-2015 at 10:41 AM.
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post #3 of 25 (permalink) Old 04-07-2015, 11:02 AM Thread Starter
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Yeah 1/4" and I also have an adapter for 8mms (1/3").

This is an image of what I need to do:
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post #4 of 25 (permalink) Old 04-07-2015, 11:57 AM
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see my Freud link...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #5 of 25 (permalink) Old 04-07-2015, 12:05 PM Thread Starter
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Yeah, I saw that link, I think this one will do: Freud Tools | 1/2" (Dia.) Mortising Bit

Now I have to see if it exists here.
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post #6 of 25 (permalink) Old 04-07-2015, 12:08 PM
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another brand perhaps???

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #7 of 25 (permalink) Old 04-07-2015, 12:15 PM Thread Starter
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If that bit comes from Italy, it should be here I guess.

I have no idea about other brands, I've been looking for something like that lately but couldn't find anything, most of them are not "plunge", they just cut the profile.
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post #8 of 25 (permalink) Old 04-07-2015, 12:28 PM
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it's Italian made...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #9 of 25 (permalink) Old 04-08-2015, 01:05 AM
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Pablo you should be able to find 3/4" diameter straight bits in 1/4" shanks. Lots of companies make a bit in that size. 1/2" D should also be available.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #10 of 25 (permalink) Old 04-08-2015, 08:34 AM
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Pablo Seeing that you don't like to do too many passes then it may be that you cut too deep in one pass with your old cutter, The thing about router cutters is this, Don't buy cheap ones as they are not that good, buy a quality cutter and when it needs to be sharpened then get it sharpened, don't cut too deep in one pass as the cutter will get hot and burn, you will know if the cutter is working too hard, so don't cut too deep or too fast as you go along, good cutters are worth the time to take care of them, keep them sharp. N
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