FCGear HypoCycloidGear
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|
|
| Menu location |
|---|
| Gear → HypoCycloid Gear |
| Workbenches |
| Gear |
| Default shortcut |
| None |
| Introduced in version |
| 1.0 |
| See also |
| None |
Description
The 
FCGear HypoCycloid Gear command creates two splined cam disks and a set of rollers that stay in touch with the disks' outer surfaces while moving.
Left: Hypocycloid gear. Right: Gear and transparently displayed also provided reversed gear and set of rollers
Please provide a short description what can be achieved using such a gear train.
Usage
- Switch to the
Gear Workbench. - There are several ways to invoke the command:
- Press the
HypoCycloid Gear button in the toolbar. - Select the Gear → HypoCycloid Gear option from the menu.
- Press the
- Change the gear parameter to the required conditions (see Properties).
Properties
See also: Property View.
An FCGear HypoCycloidGear object is derived from a Part Feature object and inherits all its properties. It also has the following additional properties:
Data
Disks
- Datadisk-height (
Length): Default is10 mm. Height. - Datashow_disk0 (
Bool): Default istrue. Show main cam disc. - Datashow_disk1 (
Bool): Default istrue. Show another reversed cam disk om top.
Pins
- Datacenter_pins (
Bool): Default istrue. Center pin Z axis to generated disks. - Datapin-height (
Length): Default is20 mm. Height. - Datashow_pins (
Bool): Default istrue. Create pins in place.
gear_parameter
- Dataeccentricity (
Float): Default is1.5. Eccentricity. - Datahole_radius (
Length): Default is30 mm. Center hole's radius. - Datapin_circle_radius (
Length): Default is66 mm. Pin ball circle radius (overrides Tooth Pitch). - Datapressure_angle_lim (
Angle): Default is50°. Pressure angle limit. - Datapressure_angle_offset (
Float): Default is0.01. Offest in pressure angle. - Dataroller_diameter (
Float): Default is3.0. Roller diameter. - Datasegment_count (
Integer): Default is42. Number of points used for spline interpolation. - Datateeth_number (
Integer): Default is42.. Number of teeth in cam.
version
- Dataversion (
String): Default is1.3.0. freecad.gears-version
Notes
The default gear(s) are displayed like this:
To display the cam disks and the set of rollers (pins) in different colours, we need three identical HypocycloidGear objects. Their visibility can be toggled:
- Datashow_disk0 (
Bool) for the main cam disk. - Datashow_disk1 (
Bool) for a reversed cam disk on top. - Datashow_pins (
Bool) for the set of pins.
Left: HypocycloidGear objects as created. Right: Objects repositioned to get a better view on each object