Thread: Carbon fiber keyrings...
Just been testing my new 2.2kw spindle, and this is the first thing I've done with it:
Anyone want one :naughty:?
Backlash has caused the lettering to be a little off, but it's not really noticeable.
It seems that carbon fiber is quite easy to cut with those cheap diamond burrs...
I'll post a video tomorrow.
Can i order one that says "MYCNCUK" please :whistling:
Looking good so far though, another member wanted to machine fiber but wasnt to sure how well it would work as its a hard material, i guess this answers the question.
In the past I've had problems machining it because it is very abrasive. At first I tried a 4mm HSS cutter I think it was in my milling machine at 2150rpm. That worked, but after one small part the cutter was polished and ruined.
Then I tried the diamond burr in the milling machine which worked very nicely leaving a smooth finish. However with the spindle speed limited to just 2150rpm, and this basically being a grinding operation I could only use about 60mm/min, if that. Not surprisingly it took forever - however the cutter lasted.
Now with over 10 times the spindle speed it cuts easily. I trimmed the carbon sheet at 450mm/min (24000rpm), and cut the keyring out at 180mm/min. No doubt it would do more on a more rigid machine. I didn't want to push it since that's my last cutter...
It still looks fine after cutting about 1m of carbon.
Does anyone know where I can buy several of this type of diamond burr, not an annoying set with all sorts of shapes? I looked a while ago but could only find the latter for a reasonable price.
Very smart Jonathan. What software did you use to create the text?
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