M5 hand tap holder with FreeCAD source

Easy tapping!

Maker/DIY

GPLv3

A free software license that requires that all work based on this must also be free software as in freely remixable and sharable by anyone under the same license but may be used commercially.

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Description

Fix your tap to this holder with an M5 set screw.

SHA-224 checksum
d3d678b2a44bb7b9911357fb6af880f16330f66a5a47d7b5914ffd5b taph.stl
2254cbc850ac0531a7063f3f8f149ef5c1729132d7a7c0969995e5a1 tapholder.FCStd
(tapholder.FCStd is FreeCAD source.)

Material: PLA
Layer Hight: 0.2
Build Plate Adhesion: Skirt 3

Materials and methods

Material: PLA
Layer Hight: 0.2
Build Plate Adhesion: Skirt 3

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Comments

Mini hanat-nissie commented ago

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

Mini hanat-nissie published this design ago