Thingiverse
Screw (Crossed Helical) Gear Drive Model by otvinta3d
by Thingiverse
Last crawled date: 3 years ago
https://youtu.be/3y5DPHl9y2g
Our collection of 3D-printable gear mechanisms would be incomplete without the model of a screw gear drive. Screw gears are regular helical gears mounted on non-parallel, non-intersecting shafts. They are also known as crossed helical gears.
The shape of this screw gear drive was inspired by the DNA molecule. In this particular model, there are three gears mounted at 45° to each other, but the shaft angle can be any number between 0 and 90°.
3D Printed Parts List:
QtyFilenameDescription1sg_base.stlThe base of the model to which the stand is attached.1sg_stand.stlThe two-spiral stand to which the gears are attached.1sg_bottom_gear.stlBottom 36-tooth gear.1sg_middle_gear.stlMiddle 30-tooth gear.1sg_top_gear.stlTop 24-tooth gear.2sg_lower_axis.stlThe axis on which the bottom and middle gears are mounted.2sg_washer.stlThe washer that secures the bottom and middle gear on their axes.1sg_upper_axis.stlThe axis on which the top gear, stop tube and spinner are mounted.1sg_stoptube.stlThe stop tube mounted on the upper axis next to the top gear.1sg_spinner.stlThe finger spinner which sets the model in motion.1sg_bridge.stlThe bridge connecting the two spirals of the stand for security.
For assembly instructions, and for other 3D-printable models and modeling tutorials, please visit http://www.otvinta.com.
Our collection of 3D-printable gear mechanisms would be incomplete without the model of a screw gear drive. Screw gears are regular helical gears mounted on non-parallel, non-intersecting shafts. They are also known as crossed helical gears.
The shape of this screw gear drive was inspired by the DNA molecule. In this particular model, there are three gears mounted at 45° to each other, but the shaft angle can be any number between 0 and 90°.
3D Printed Parts List:
QtyFilenameDescription1sg_base.stlThe base of the model to which the stand is attached.1sg_stand.stlThe two-spiral stand to which the gears are attached.1sg_bottom_gear.stlBottom 36-tooth gear.1sg_middle_gear.stlMiddle 30-tooth gear.1sg_top_gear.stlTop 24-tooth gear.2sg_lower_axis.stlThe axis on which the bottom and middle gears are mounted.2sg_washer.stlThe washer that secures the bottom and middle gear on their axes.1sg_upper_axis.stlThe axis on which the top gear, stop tube and spinner are mounted.1sg_stoptube.stlThe stop tube mounted on the upper axis next to the top gear.1sg_spinner.stlThe finger spinner which sets the model in motion.1sg_bridge.stlThe bridge connecting the two spirals of the stand for security.
For assembly instructions, and for other 3D-printable models and modeling tutorials, please visit http://www.otvinta.com.
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