Super newbie to cf, been reading alot on properties and processes.  Lets talk tooling, specifically router process as I do not have a CNC yet.  Parts I'd like to make are fairly simple and I have aluminum patterns to follow.  So I have two routers with up to 16,000 rpms available to use, and already purchased a couple of carbide bits, one 1/4" shank other 1/8" shank.  I looked for days for a flush cut bit with a roller bearing thinking it would be ideal for using a pattern, however did not find one.  So I went with this bit 
https://www.toolstoday.com/solid-carbide-carbon-graphite-and-carbon-fiber-panel-cutting-router-bits.html?variantids=12012,0&keywords=46264

In hindsight I see it is not recommended for handheld routers, however on a couple of test passes using a straight edge cutting a 6.5mm cf plate worked well.  I am concerned about digging into the pattern as the depth of the cutter has to be set precisely.  Any suggestions here?  Ideally a bit with a bearing would be the ticket, any one seen a full carbide bit like this?  

Speed....from what I've read, and the short test piece, looks like high rpm's is the ticket for a smooth edge needing minimal work to finish.  Any input is appreciated. 

For cutting most carbon sheet we tend to go with PCB cutting bits.  They cut cleanly and precisely.  They will blunt after a reasonable amount of time but the cost is low enough for them to be considered consumable for many projects.


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Let us know how you get on!


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Well I was never one to cheap out on tools, and found a diamond carbide impregnated 1/4 flush but with guide bearing. Routered out a few items recently with good results. Quick finish on the belt sander then final by hand, and I'm really liking the results so far. Material is a 3mm twill weave.