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 → Data below).
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
): (number of points for spline), default is15
.
base
- Dataadd_endings (
bool
): Default istrue
, If enabled, the total length of the rack is teeth x pitch, otherwise the rack starts with a tooth-flank. - Dataheight (
Length
): Default is5,00 mm
. Value of the gear width. - Datateeth (
Integer
): Default is15
. Number of teeth. - Datathickness (
Length
): Default is5,00 mm
. Thickness of the uncut part of the rack.
computed
- Datatransverse_pitch (
Length
): Default is0,00 mm
. Pitch in the transverse plane. (read-only)
cycloid
- Datainner_diameter (
Float
): Default is7,50
. Diameter of the rolling circle of hypocycloid, normalized by the Datamodule (see also the information in Notes). - Dataouter_diameter (
Float
): Default is7,50
. Diameter of the rolling circle of epicycloid, normalized by the Datamodule (see also the information in Notes).
fillets
- Datahead_fillet (
Float
): Default is0,00
. - Dataroot_fillet (
Float
): Default is0,00
.
helical
- Databeta (
Angle
): Default is0,00°
. 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
.true
creates a double helix gear (see also the information in Notes).
involute
- Datamodule (
Length
): Default is1,00 mm
. For racks the module equals the pitch and so is the distance between corresponding points on adjacent teeth (see also the information in Notes).
precision
- Datasimplified (
Bool
): Default isfalse
. Iftrue
the rack is drawn with a constant number of teeth to avoid topologic renaming.
tolerance
- Dataclearance (
Float
): Default is0,25
(see also the information in Notes). - Datahead (
Float
): Default is0,00
. Additional length of the tip of the teeth, normalized by the Datamodule.
version
- Dataversion (
String
):
Notes
See FCGear InvoluteGear.
Useful formulas
See FCGear InvoluteGear.