Thingiverse
2.5inch Three Jaw Chuck
por mdkendall
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A 2.5inch (63mm) diameter three-jaw chuck.
The three self-centering jaws are reversible to allow holding larger work pieces. To fit them in the normal orientation, as shown in the photos, insert them in to the slots in the order A-B-C. To fit them reversed, insert them in the order C-B-A.
The mounting hole suits a spindle with an M14 x 1mm thread. This is the standard size used on the Unimat 3 machines and also the many recent "8-in-1 Mini Lathe" kits available from China.
All parts are fully printable in the orientation shown with no support material. The overhangs near the center of the housing have carefully constructed chamfers to ensure that, while there is bridging, there are no overhangs that would need support.
I suggest using a small brim when printing the jaws to ensure that there is no lifting around the teeth. A 2mm brim worked fine for me. The other parts can be printed as-is.
The 4mm holes around the edge of the housing and the scroll plate are for insertin
The three self-centering jaws are reversible to allow holding larger work pieces. To fit them in the normal orientation, as shown in the photos, insert them in to the slots in the order A-B-C. To fit them reversed, insert them in the order C-B-A.
The mounting hole suits a spindle with an M14 x 1mm thread. This is the standard size used on the Unimat 3 machines and also the many recent "8-in-1 Mini Lathe" kits available from China.
All parts are fully printable in the orientation shown with no support material. The overhangs near the center of the housing have carefully constructed chamfers to ensure that, while there is bridging, there are no overhangs that would need support.
I suggest using a small brim when printing the jaws to ensure that there is no lifting around the teeth. A 2mm brim worked fine for me. The other parts can be printed as-is.
The 4mm holes around the edge of the housing and the scroll plate are for insertin
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