bumonskateboard6 Posted April 4, 2011 Report Share Posted April 4, 2011 (edited) I have all Freud carbide bits and they just are not lasting long with MDF and are already dull and burning the wood after I've cut out about a dozen holes. Is this normal or are there stronger bits I can use? Edited April 4, 2011 by bumonskateboard6 Current Systems: 2011 BMW 335i Hertz HDP1 DC LVL3 12" Full Carbon Fiber 2002 Acura TlKenwood DNX9980HD2 DCLVL4 12" Subs with LVL5 Parts D.7 CoilsDC 3.5kHertz HSK-165 up front HCX-165 RearHertz HDP4 AmpDC Power Engineering 260 Amp AltBig 3 and amp powered with KNU 1/0XS Power D2400 Up Front i pulled out my dick in class many of times and had it shown. get over it bitch...stupid open legged hairy beavered bitch... going over rms = smaller box, under rms = bigger box... Low voltage doesn't blow amps. That's a myth. A router that does the sub holes makes rounded edges also? Link to comment Share on other sites More sharing options...
Decaf Posted April 4, 2011 Report Share Posted April 4, 2011 what router are u using, might be too small for the bits u are using Link to comment Share on other sites More sharing options...
uhoh_45 Posted April 4, 2011 Report Share Posted April 4, 2011 could also be your forcing the router to much and its burning itself up R.I.P! (Nov-29-2009) 92 explorer - 4 Atomic Apxx 15s duel .7s - 4rth order bandpass wall -4 powerbass XA-3000D's - 16 8volt batts wired to 16 volts - (9+/9-) runs 0gauge - 152.3 Db @ 29hz BUILD LOG current build 97 chevy lumina4 - 1 Atomic Apx 18 - 6 cube slot port trunk sealed off - 1 powerbass XA-3000D - 2 optima G31s in spare tire18 1 run 1/0 lumina build log Link to comment Share on other sites More sharing options...
PUNKYOU007 Posted April 4, 2011 Report Share Posted April 4, 2011 I dont know about the longevity. I know my upcut bit has cut its fair share of holes and still cuts like a hot knife. The good thing here is you have carbide tips...they can be resharpened. Find a local guy that sharpens shit and you can probably get it done fairly cheap. Doethepaperboy "Bars of Pain" Doethepaperboy "Hero Remix" C. Arson d(-__-)b beer sucks...but i can bring some jose cuervo. Only problem is that it makes me horny and gives me the rams. So unless yall wanna fight and then have some great make up sex i will leave it home. Link to comment Share on other sites More sharing options...
bumonskateboard6 Posted April 4, 2011 Author Report Share Posted April 4, 2011 I'm using a porter cable 892 router, and it's a 1/4" bit and I'm using the 1/4" shank and running around 16-17,000 RPMs. I know I can get them re-sharpened I'm just seeing if there's anything I can do to extend their life. Also where it started burning I was forcing it a little and that probably didn't help any.. Current Systems: 2011 BMW 335i Hertz HDP1 DC LVL3 12" Full Carbon Fiber 2002 Acura TlKenwood DNX9980HD2 DCLVL4 12" Subs with LVL5 Parts D.7 CoilsDC 3.5kHertz HSK-165 up front HCX-165 RearHertz HDP4 AmpDC Power Engineering 260 Amp AltBig 3 and amp powered with KNU 1/0XS Power D2400 Up Front i pulled out my dick in class many of times and had it shown. get over it bitch...stupid open legged hairy beavered bitch... going over rms = smaller box, under rms = bigger box... Low voltage doesn't blow amps. That's a myth. A router that does the sub holes makes rounded edges also? Link to comment Share on other sites More sharing options...
uhoh_45 Posted April 5, 2011 Report Share Posted April 5, 2011 let the router do all the work R.I.P! (Nov-29-2009) 92 explorer - 4 Atomic Apxx 15s duel .7s - 4rth order bandpass wall -4 powerbass XA-3000D's - 16 8volt batts wired to 16 volts - (9+/9-) runs 0gauge - 152.3 Db @ 29hz BUILD LOG current build 97 chevy lumina4 - 1 Atomic Apx 18 - 6 cube slot port trunk sealed off - 1 powerbass XA-3000D - 2 optima G31s in spare tire18 1 run 1/0 lumina build log Link to comment Share on other sites More sharing options...
AI James Posted April 5, 2011 Report Share Posted April 5, 2011 i'd day at least 200 speaker holes a bit or 70-80 on a cheap ass Harbor bit Link to comment Share on other sites More sharing options...
Second Skin Rep Jon Posted April 8, 2011 Report Share Posted April 8, 2011 Are you getting any build up on the bits? Might give them a good cleaning and see if that helps. How deep are you cutting in a single pass? Might just be taking too much out at once. Out of all of the Freud bits, I've had the best luck with their 1/4" straight bit with 1/2" shank. I've sense switched from Freud to CMT's spiral upcut and downcut (depending on the application) and have had better luck all around with their bits. The spiral bits expel the chips better, seem to last longer, and are fairly inexpensive. Later, Have a question about Second Skin? E-Mail me! Link to comment Share on other sites More sharing options...
kingsuv Posted April 9, 2011 Report Share Posted April 9, 2011 Really depends on the bit, the material and the force. I would try slowing down not only the speed on the bit, but I would also put very little force on it as you work. Seams to work pretty well for me. Designing, building, and shipping boxes. Yahoo IM - kingsuv00If the listening level is too loud, please inform the driver, so he can promptly pull over, and let you out. not many cars can get me to pluggin my ears but this one.......damn. I mean the first minute is ok but that thing just really starts digging deeper and deeper in your earhole till you cant stand it no more. Seems like it does it with relative ease....16 12's on 8 amps.........gotta love it. Link to comment Share on other sites More sharing options...
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