FCGear CycloidRack
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|
|
| Menu location |
|---|
| Gear → Cycloid Rack |
| Workbenches |
| FCGear |
| Default shortcut |
| None |
| Introduced in version |
| 1.0 |
| See also |
| FCGear CycloidGear |
Description
Cycloid racks from left to right: Spur gearing, helical gearing, double helical gearing
Usage
- Switch to the
FCGear Workbench. - There are several ways to invoke the command:
- Press the
Cycloid Rack button in the toolbar. - Select the Gear → Cycloid Rack option from the menu.
- Press the
- Change the gear parameter to the required conditions (see Properties).
Properties
An FCGear CycloidRack object is derived from a Part Feature object and inherits all its properties. It also has the following additional properties:
accuracy
- Datanumpoints (
Integer): Default is15. Number of points for spline.
base
- Dataadd_endings (
bool): Iftrue(default), then the total length of the rack is teeth * pitch. Iffalse, then the rack starts with a tooth-flank. - Dataheight (
Length): Default is5 mm. Value of the gear width. - Datateeth (
Integer): Default is15. Number of teeth. - Datathickness (
Length): Default is5 mm. Thickness of the uncut part of the rack.
computed
- Datatransverse_pitch (
Length): (read-only) Pitch in the transverse plane.
cycloid
- Datainner_diameter (
Float): Default is7.5. Diameter of the rolling circle of hypocycloid, normalized by the Datamodule (see Notes). - Dataouter_diameter (
Float): Default is7.5. Diameter of the rolling circle of epicycloid, normalized by the Datamodule (see Notes).
fillets
- Datahead_fillet (
Float): Default is0. - Dataroot_fillet (
Float): Default is0.
helical
- Databeta (
Angle): Default is0 °. With the helix angle β a helical gear is created (positive value → rotation direction right, negative value → rotation direction left). - Datadouble_helix (
Bool): Default isfalse,truecreates a double helix gear (see Notes).
involute
- Datamodule (
Length): Default is1 mm. For racks the module equals the pitch and so is the distance between corresponding points on adjacent teeth (see Notes).
precision
- Datasimplified (
Bool): Default isfalse. Iftruethe rack is drawn with a constant number of teeth to avoid topological renaming.
tolerance
- Dataclearance (
Float): Default is0.25(see Notes). - Datahead (
Float): Default is0. Additional length of the tip of the teeth, normalized by the Datamodule.
version
- Dataversion (
String):
Notes
See FCGear CycloidGear.
Useful formulas
See FCGear CycloidGear.