M5 hand tap holder with FreeCAD source

By t-nissie

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t-nissie
t-nissie
over 1 year
3DプリンターとPLAでテキトーに作った 熱収縮しがちなネジ穴を仕上げるための M12用のタップのホルダを作る場合 タップの柄の直径 d=8.5 mm 柄の四角柱の1辺 K=6.45 mm 穴の収縮と遊びを考慮した係数 c=1.045 (3Dプリンターに依存。穴の半径が小さいときはcが大きくなる。) 穴の半径 r=d*c/2=4.44 mm 四角穴の外接円の半径 s=K*c/√2=4.77 mm
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