Robust Teaching Clock
por BrayChristopher
Archivos imprimibles (9)
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stlArm.STL
101 Ko · 426 descargas
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stlDrive_Shaft.STL
148 Ko · 410 descargas
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stl8_Tooth_Gear_-_Fatter_-_Top.STL
286 Ko · 417 descargas
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stl8_Tooth_Gear_-_Fatter_-_Bottom.STL
300 Ko · 417 descargas
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stlMinute_Hand.STL
169 Ko · 427 descargas
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stl12_Tooth_Gear.STL
361 Ko · 425 descargas
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stlHour_Hand.STL
222 Ko · 408 descargas
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stlNew_Clock_Face.STL
1.4 Mo · 412 descargas
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stlBase_Housing.STL
662 Ko · 411 descargas
Descripción
New Version: https://www.thingiverse.com/thing:3037481
I liked the concept of these other teaching clocks, but the parts were too small and weak. I kept breaking them while trying to assemble them.
Everything is held together with #6 flat head sheet metal screws.
5x 1/2" long
1x 1.25" long
When assembling make sure that the gear in the base housing has one tooth pointing up (at 12) and two teeth pointing down (at 6). Then attach the arm and both hands pointing up (at 12).
Things that still need improving:
There is a lot of play in the gears. I might try fattening up the 8 tooth gears more and see what happens.
The drive shaft is too wobbly.
The arm (and minute hand) are not balanced, so they don't stay put when you hold the clock up.