maury
Junior Member
Posts: 58
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Post by maury on Jul 28, 2019 19:37:38 GMT
Here is a carving in 1/4" (6.4mm) cherry of Guan Yu, ancient revered Chinese general. I acquired the STL file for free off Cults3d website. I am using a newly purchased tapered ball mill (Amazon), .25mm radius for the finish pass. For some details: M3, 400W 12K rpm spindle, artcam 2012, depth of carve 5mm, rough pass 1/16" end mill, finish pass Jerray tapered ball mill .25mm radius, cord opening and cutout 1-16" end mill. I am now finishing my jewelry with a Beeswax/Jojoba Oil combo (Etsy). I love the look and feel it gives the wood and people like the fact it's natural (instead of polyurethane or similar). Sorry for dual measuring units.
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Post by Bruce on Jul 28, 2019 21:08:15 GMT
Great job Maury. Very nice and fine detail. What was the finnish step over setting you used in ArtCAM?
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maury
Junior Member
Posts: 58
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Post by maury on Jul 28, 2019 22:19:32 GMT
Stepover was 10% of .5mm diameter or .05mm. It did take about 3 hours for the finish pass but required minimal sanding later. I have been doing a lot of finish passes with a 1/32" ball but wanted to see if I could improve on the detail. Impressed me quite a bit. This bit seems to leave less "fuzz" to remove than a normal ball mill.
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Post by Derek the Admin on Jul 29, 2019 1:08:50 GMT
That detail is outstanding. Thanks for sharing!
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Post by fracturedtom on Aug 11, 2019 15:58:37 GMT
Great job Maury. Very nice and fine detail. What was the finnish step over setting you used in ArtCAM? Agreed! I've been trolling the various CNC sites for this very thing. I'm a woodworker looking to add CNC to my skill set. The detail in that piece is excellent!
Bruce, can you tell me if the level of detail at this size is possible with the Dewalt router option, or is a spindle better? I've not decided on a machine yet, but MillrightCNC is my heavy favorite.
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Post by Bruce on Aug 13, 2019 0:58:55 GMT
Either would work with this application. The Dewalt router might need a collet to hold the smaller tool but it should work fine. Which machine are you looking at fracturedtom?
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Post by Derek the Admin on Aug 13, 2019 10:13:40 GMT
I'll add to the router vs spindle question by saying that I usually prefer a router. Many people will tell you a spindle is better, and in absolute terms they are quite likely correct. I personally don't think that in many applications the setup of a VFD spindle is worth the extra cost and setup effort over a router.
That's more personal preference than anything I suppose though.
Note that the 400w we sell is not a VFD based spindle. As such, it is easier to set up and interact with but it does lack some of the benefits of a higher end spindle.
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maury
Junior Member
Posts: 58
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Post by maury on Aug 13, 2019 11:36:10 GMT
Thanks for the kind words folks. The 400w spindle is all the power I need for my small items but I would like to have a tad more rotational speed sometimes. I like the lack of "noise" the 400w makes. I must say that with my light loading of the 400w model, I'm impressed by it's longevity. I wish they made a 400w 18000-24000 rpm model.
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Post by fracturedtom on Aug 14, 2019 1:15:18 GMT
Either would work with this application. The Dewalt router might need a collet to hold the smaller tool but it should work fine. Which machine are you looking at fracturedtom? The Carve King. I think the cutting area will cover most of what I want to do.
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Post by Bruce on Aug 14, 2019 2:42:13 GMT
I've had the Carve King for just over two years now...(hard to believe it's been that long) and I'm still trying out new ideas. Great machine.
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Post by fracturedtom on Oct 14, 2019 17:55:42 GMT
It did take about 3 hours for the finish pass but required minimal sanding later. I have been doing a lot of finish passes with a 1/32" ball but wanted to see if I could improve on the detail. Impressed me quite a bit. This bit seems to leave less "fuzz" to remove than a normal ball mill.
Maury,
What's the time difference between the three-hour .25mm radius tapered mill and "normal" ball mill?
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maury
Junior Member
Posts: 58
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Post by maury on Oct 14, 2019 18:18:30 GMT
I used the taper bits because I had some Amazon bucks to burn and the tapered ones are a bit "stronger" (harder to snap off). Otherwise they are just a tapered ball end mill. The long time is because of the tiny mill and even tinier stepover I elected to use (10% of .5mm diameter). Lots of passes. Probably could have upped the stepover a tad and never notice but I had just received the bits and wanted to see what they could do. Reliefs just take a long time, I'm afraid.
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