Milling Machine - ShopNotes
Milling Machine - ShopNotes
Milling Machine - ShopNotes
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<strong>Milling</strong><strong>Machine</strong>Patterns!/2"-DIA.HOLE20-TOOTHFULL-SCALE PATTERN(6!/8" O.D.)(NEED ONE)!/4"-DIA.HOLEDRIVE GEARFULL-SCALE PATTERN(3!/4" O.D.)(NEED ONE)LOCK GEARFULL-SCALE PATTERN(NEED ONE)1" -DIA.HOLE%/16"-DIA.HOLE<strong>ShopNotes</strong> No. 115 Page 1 of 7 ©2010 August Home Publishing. All rights reserved.
INDEXING WHEELFULL-SCALELEFT HALF-PATTERN(NEED 1)&/16"-DIA.HOLENOTE: USE CENTERLINESTO ALIGN BOTH INDEXINGWHEEL HALF-PATTERNS TOFORM A FULL PATTERNC L!/4"-DIA.HOLES!/2"-DIA.HOLE4!/2"-RAD.<strong>ShopNotes</strong> No. 115 Page 2 of 7 ©2010 August Home Publishing. All rights reserved.
&/16"-DIA.HOLEINDEXING WHEELFULL-SCALERIGHT HALF-PATTERN(NEED 1)NOTE: USE CENTERLINESTO ALIGN BOTH INDEXINGWHEEL HALF-PATTERNS TOFORM A FULL PATTERNC L!/2"-DIA.HOLE!/4"-DIA.HOLES4!/2"-RAD.<strong>ShopNotes</strong> No. 115 Page 3 of 7 ©2010 August Home Publishing. All rights reserved.
NOTE: USE CENTERLINESTO ALIGN TWO 30-TOOTHHALF-PATTERNS TO FORMA FULL PATTERN30-TOOTHFULL-SCALEHALF-PATTERN(9" O.D)(NEED 2)C LC L!/2"-DIA.HOLE!/4"-DIA.HOLE<strong>ShopNotes</strong> No. 115 Page 4 of 7 ©2010 August Home Publishing. All rights reserved.
10-TOOTHFULL-SCALEPATTERN(3!/4" O.D.)(NEED THREE)!/2"-DIA.HOLENOTE: USE CENTERLINESTO ALIGN FOUR 40-TOOTHQUARTER-PATTERNS TOFORM A FULL PATTERN40-TOOTHFULL-SCALEQUARTER-PATTERN(11!#/16" O.D.)(NEED 4)!/2"-DIA.HOLEC LC L!/4"-DIA.HOLE%/16"-DIA.HOLE<strong>ShopNotes</strong> No. 115 Page 5 of 7 ©2010 August Home Publishing. All rights reserved.
<strong>Milling</strong> <strong>Machine</strong>Gear SetupsThe router milling machine allows for sixdifferent gear setups to create spiral patterns(like flutes and reeds). Depending on thesetup, the gear ratio, and therefore the spacingof the spirals changes. The direction ofthe spiral depends on whether one or twogears are used to connect the drive gear andmain gears, as you can see in the drawingsbelow and on the following page.Each set of drawings below shows thegear setup and resulting spiral pattern. Youcan use the information to determine whatwill work best for the type of bit you’reusing. It’s always good idea to try out differentgear setups and bit combinations ona practice blank to determine the best spacingand number of spirals.Over time, you’ll develop a sense for thenumber of spirals you can use in a designdepending on the gear ratio and the size ofthe bit (or a portion of a bit) you use.SINGLESPIRALPATTERNFOURCOMPLETESPIRALPATTERNS{ Spiral Pattern. Each specific gear setup results in a particularspiral spacing (left example). The indexing wheel ensures that spirals areevenly spaced for a consistent look once they’re complete (right example).10-20GEARINSIDE END VIEWA1-8 GEARRATIO1%/8OUTSIDE END VIEW10-30GEARB1-12 GEARRATIO2#/8<strong>ShopNotes</strong> No. 115 Page 6 of 7 ©2010 August Home Publishing. All rights reserved.
10-40GEARINSIDE END VIEWC1-16 GEARRATIO3#/16OUTSIDE END VIEW10-20GEAR10-30GEAR31-24 GEARRATIOD4!#/1610-20GEAR10-40GEAR21-32 GEARRATIOD6#/810-30GEAR10-40GEAR11-48 GEARRATIOD9%/8<strong>ShopNotes</strong> No. 115 Page 7 of 7 ©2010 August Home Publishing. All rights reserved.
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