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25th November 2016, 02:37 PM #1Senior Member
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Which hardwood vcarves cleanly - making a sign
Which hardwood in Australia vcarves cleanly? I want to vcarve, with a CNC router, some letters on a sign without the fuzzies. The sign will not be out in the weather so it does not have to be durable.
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25th November 2016, 03:29 PM #2Taking a break
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I've had decent results in Jarrah, but any of the denser timbers should be ok. Stay away from blackwood, it's very stringy and will likely give you grief.
I've found that a fine, brass-bristled brush is fantastic for cleaning the fuzz out of the point of the V if you do get some
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25th November 2016, 08:47 PM #3Senior Member
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Have you tried Tasmanian Oak?
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25th November 2016, 10:49 PM #4
Run your first cut then run a second cut 0.1 to 0.2 mm deeper.
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26th November 2016, 05:23 AM #5regards from Alberta, Canada
ian
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26th November 2016, 08:20 AM #6Senior Member
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Yes, I did not think of that. I guess I was looking at what Bunnings had. What other species work? What have you tried? If I can get a list together, I might consult a saw mill.
Mike
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17th December 2016, 02:32 PM #7Senior Member
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'Bunnings...' That's a rude word! I'm not sure I'd class much of what they carry as 'real' wood, in the old quality sense!
The nicest hardwood I've cnc-routed was Crow's Ash. (It's not a eucalypt- it's a flindersia, I think). Greasy, and holds very fine detail well.
Spotted gum is great too, if you can get some nice hard dense seasoned stuff- not the yukky CCA-treated green junk.
Jacarandah is lovely too, for delicate detail.
However, as mentioned the cutting path will make a difference, too, as will the quality of the endmill/cutter.
You really need seasoned timber...
I've had ebay cheap cutters from China, and expensive Onsrud cutters - Onsrud leaves ebay behind in the dust for quality of cut.
You get what you pay for,
A hatch fill is going to give a climbing cut, followed by a running cut every second time, as it goes back and forth - that contrast can give fuzzy edges.
An island fill path strategy will always have the cutting the same - but not always with the grain. you need to balance needs versus the importance of tool-path remnant traces.
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18th December 2016, 03:37 PM #8GOLD MEMBER
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They all cut cleanly. Learn the wood for their characteristic qualities and select your stock.
Got any talent to keep your cutters sharp? Can't blame the wood for crap cutters.
Softer woods need higher speeds. Or so my years of wood carving seem to show me.
RotoZip at 30k is really sharp in western red cedar/Thuja plicata.
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