FCGear WormGear

Description
'This and the linked website(s) are under construction since 8.3.2020. I try to fill the content quickly in addition to my job. Therefore please have a little patience. @bavariaSHAPE'

The worm can be considered a special case of a helical gear. Imagine that there is only one tooth on a spur gear. Now increase the helix angle so much that the tooth winds around the spur gear several times before it emerges on the opposite side. The result would be a single thread worm.

A worm is normally designed for right-hand threads, and has a small number of teeth. Usually used as a helical worm, with teeth according to the involute shape at right angles to the gear axis.

A worm can only be used with a worm wheel. This is called a worm drive. Like other gear arrangements, a worm drive can reduce rotational speed or transmit higher torque. One of the major advantages of worm gear drive units are that they can transfer motion in 90 degrees. A worm drive is also self-locking.


 * [[Image:Worm-Gear_example.png]]

Usage

 * 1) Switch to the [[Image:FCGear_workbench_icon.svg|22px]] FCGear Workbench.
 * 2) Invoke the command several way:
 * 3) * Press the FCGear_WormGear.svg Create a Worm gear button in the tool bar.
 * 4) * Using the.
 * 5) Change the gear parameter to the required conditions (see  below).

Data

 * : Placement is the location and orientation of an object in space.
 * : User name of the object in the Tree view.


 * : Lead angle (not changeable, is calculated automatically).
 * : Pitch diameter.
 * : Value of the worm length.
 * : Module is the ratio of the reference diameter of the gear divided by the number of teeth (see also the information in ).
 * : Number of teeth (see also the information in )


 * : Default is 20 (see also the information in ).

View
The parameter descriptions of the tab will be found in Property editor, further below at.

Limitations
Limitation are not known yet.

Worm wheel
The worm wheel must be designed separately. For this purpose can be used.


 * [[Image:Worm-Gear example3.png]]