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Thread: Smallest V-bit?

  1. #1
    Join Date
    Oct 2016
    Location
    Paradise, CA
    Posts
    9

    Default Smallest V-bit?

    I am using a 1/8" dia. 30 degree V-bit with a (claimed) .004" wide point.

    I cannot achieve sufficient detail using this geometry.

    Do you know of any pointier v-bits available off the shelf? 15 degree with a .002" point maybe?

    Thanks,
    Brett

  2. #2
    Join Date
    Sep 2006
    Location
    Garland Tx
    Posts
    2,294

    Default

    I have had zero success with any 30-degree bit… the tips are too fragile to last through a job! My go to bit is the 3-flute 60 degree laser point CMT bit.

    SG

  3. #3
    Join Date
    Apr 2013
    Location
    Kennebunkport, Maine
    Posts
    4,316

    Default

    What kind of work do you do Brett?
    Is the bit entered properly as an Engraving bit(uses side angle...and stepover is % of the flat for Engraving bits) ?

    My go-to 30's are either Onsrud's Engraving bits (conical type) in either .005 or .01" flat depending on the job.
    https://www.amazon.com/dp/B001VXS1GK...ing=UTF8&psc=1
    I frequently use them to get the small details in 3Ds that the .25mm TBN doesn't quite get(I do a lot of Tiny stuff).
    But also use on .14-.25" fonts(especially script fonts)

    My other go-to 30 is Drillman1's .125" shank with the Std. tip of .0125"
    https://www.ebay.ca/itm/5-30-degree-...gAAOxyqUpQ4cc1
    (do NOT buy the "Sharp" tip on that 30...it's the only bit I and several others have broken tips on of his Kyoceras....the 60* "Sharp" is Great with a .006" flat)
    It doesn't mention the flat ,but unless it mentions "Sharp", the tip is .0125"
    Says "soft plastic", but if Ebony/Red Ironbark/Indian Rosewood/and Bloodwood cut perfectly.....I guess they're "Plastic"

    I have Both those bits entered as both VBits and Engraving bits...but as VBit the preview won't be 100% accurate by half the tip flat, and it carves a hair deeper....
    Play with it a bit to get used to when to use it as a VBit....and do some scrap first.

    Here are just a couple of detailed 3Ds, and the smaller fonts are generally .15- .2" font height(usually with the "Bold" option checked)

    A pic of the exact problem would help.
    scott
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    scott P.
    2013 Desktop/spindle/VCP 10
    Maine

  4. #4
    Join Date
    Oct 2010
    Location
    TX
    Posts
    749

    Default

    Scott- You do lovely work! And offer up good advice, too. Keep posting! You make me want to do more interesting work!!!

  5. #5
    Join Date
    Apr 2013
    Location
    Kennebunkport, Maine
    Posts
    4,316

    Default

    Thanks Monty!
    You should see the HUGE10X14 INCH spalted Sugar Maple branch crotch "Firewood" 3D I was doing today!
    I'll post it when it's done.
    scott
    Attached Images Attached Images
    scott P.
    2013 Desktop/spindle/VCP 10
    Maine

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