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Forum topic by downrightcreative | posted 01-14-2018 12:40 PM | 593 views | 0 times favorited | 10 replies | ![]() |
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01-14-2018 12:40 PM |
Topic tags/keywords: cnc bits router bits freud bits advice help carbide tip I have a home made CNC which has my Dewalt router attached to it. I can use 1/4” or 1/2” shanks. I make the same things, over and over and over, so my bits get a lot of repetitive use. I use two types of bits- 1- I use Freud 3/32” round nose bit for 90% of my work. Mostly straight line, 2 pass, shallow carving. Been using these for 3 years and the last year I’ve been getting a ton of burrs or tear out, but I can’t figure out why. 2- I use Freud 1/4” diameter up spiral bit for my cut through work. Due to my homemade table setup, I really need something with a longer post (I guess that’s what you would call it.) I’d love to get a smaller diameter also. I’m not opposed to spending some real money to get a bit that lasts. What do you reccomend? Thanks! |
10 replies so far
#1 posted 01-14-2018 01:31 PM |
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#2 posted 01-15-2018 04:57 AM |
Desert_woodworker, do you have experience with a certain brand and style from that site? |
#3 posted 01-15-2018 06:42 AM |
Bits need to be clean and sharp. Check your edges, use a find diamond hone on flat side of carbide to re-sharpen them periodically might help. There are a lot of sources for CNC router bits. Depends heavily on application and wood being cut. One source for CNC tools I use is MSC direct. You can find everything from cheap as dirt one time use HSS straight cut to exotic full carbide up/down spiral cut bits. You can get generic 1/4” full carbide double helix spiral (up/down cut) bits for less than half cost of regular router bits found from normal woodworking sources. Best Luck. -- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber! |
#4 posted 01-15-2018 10:58 AM |
I actually work on a cnc machine -- MSDMG |
#5 posted 01-15-2018 04:53 PM |
I use a lot of Amana bits. While they’re not available in really small sizes, I really like the Amana bits with the replaceable blade. It makes honing them easy as you can remove the blade from the bit and you can replace just the blade if they get really dull. One thing to watch out for is the chip load as specified by the bit maker. Since your Dewalt router is basically fixed rpm, you should make sure your feed velocity is matched for proper chip load. This will help with bit life in the long term. Thanks, -- No honey, that's not new, I've had that forever...... |
#6 posted 01-15-2018 05:24 PM |
I use Amana Bits, and really like them. I started with them and have had real good luck. I’ve not bought sets, and slowly got a good stable of bits, and even bought a flycutter for flattening my 4×8 table. I have a cnc routerparts table i built from a kit. Love it. -- Sooner or later Liberals run out of other people's money. |
#7 posted 01-16-2018 03:59 AM |
Thank you so much CaptainKlutz, bredro, MikeDS, and bonesbr549! I really like the sound of that Amana with replaceable blades. Usually stuff like that is crap, but if you guys have had good luck, I’m willing to give it a go! Off to do so shopping and comparing! |
#8 posted 02-06-2018 08:18 AM |
I love Amana bits but there are others that are just as good or better! There are probably other ones I have not tried as yet. -- "I never met a board I didn't like!" |
#9 posted 02-08-2018 10:20 PM |
Whiteside SC40, very popular bit for the round nose |
#10 posted 02-09-2018 04:13 AM |
Thanks Holbren, I forgot Whiteside and I even have two of their bits! -- "I never met a board I didn't like!" |
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