Sarrus Z02
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Release status: unknown
| Description | Sarrus Z axis model Z02
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| License | unknown
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Build notes
none yet
Features
Logo on hinge plates.
Drive with a rubber (elastic) band and the bare metal shaft of a small DC motor. This works well and is quite strong enough to turn the threaded rod. Occasionally, a bit of fluff or other debris gets on the band and makes the motor slip when it reaches the debris.
Parallelogram type Sarrus mechanism (Sarrus IV). I came up with this to stiffen up the armature. Without this feature, the only thing that prevents the armature from twisting (rotation around an axis perpendicular to the main axis) is the stiffness of the hinge plates to twisting. The longer the hinge plates, the less stiff they are. This is what made the Z01 linkage so unstiff. With the parallelogram linkage, the parallelogram arrangement resists twisting as well. Of course, this means that the two arms of the linkage may have a 'difference of opinion' about the degree of twist. Also, the operation of the parallelogram depends on opposite sides being equal length. The Sarrus IV mechanism seems pretty successful so far.
Down sides
none yet
==Downl
Photos and Drawings
Model Z02 open
Model Z02 halfway
Model Z02 closed
Model Z02 bottom view
Model Z02 back view
