FCGear CycloidRack: Difference between revisions
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#* Press the {{Button|[[File:FCGear_CycloidRack.svg|16px]] [[FCGear_CycloidRack|Cycloid Rack]]}} button in the toolbar. |
#* Press the {{Button|[[File:FCGear_CycloidRack.svg|16px]] [[FCGear_CycloidRack|Cycloid Rack]]}} button in the toolbar. |
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#* Select the {{MenuCommand|Gear → [[File:FCGear_CycloidRack.svg|16px]] Cycloid Rack}} option from the menu. |
#* Select the {{MenuCommand|Gear → [[File:FCGear_CycloidRack.svg|16px]] Cycloid Rack}} option from the menu. |
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# Change the gear parameter to the required conditions (see |
# Change the gear parameter to the required conditions (see [[#Properties|Properties]]). |
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==Properties== <!--T:20--> |
==Properties== <!--T:20--> |
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* {{PropertyData|numpoints|Integer}}: |
* {{PropertyData|numpoints|Integer}}: Default is {{value|15}}. Number of points for spline. |
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* {{PropertyData|add_endings|bool}}: |
* {{PropertyData|add_endings|bool}}: If {{True}} (default), then the total length of the rack is teeth * pitch. If {{False}}, then the rack starts with a tooth-flank. |
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* {{PropertyData|height|Length}}: Default is {{value|5 |
* {{PropertyData|height|Length}}: Default is {{value|5 mm}}. Value of the gear width. |
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* {{PropertyData|teeth|Integer}}: Default is {{value|15}}. Number of teeth. |
* {{PropertyData|teeth|Integer}}: Default is {{value|15}}. Number of teeth. |
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* {{PropertyData|thickness|Length}}: Default is {{value|5 |
* {{PropertyData|thickness|Length}}: Default is {{value|5 mm}}. Thickness of the uncut part of the rack. |
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* {{PropertyData|transverse_pitch|Length}}: |
* {{PropertyData|transverse_pitch|Length}}: (read-only) Pitch in the transverse plane. |
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* {{PropertyData|inner_diameter|Float}}: |
* {{PropertyData|inner_diameter|Float}}: Default is {{value|7.5}}. Diameter of the rolling circle of hypocycloid, normalized by the {{PropertyData|module}} (see [[FCGear_CycloidGear#Notes|Notes]]). |
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* {{PropertyData|outer_diameter|Float}}: |
* {{PropertyData|outer_diameter|Float}}: Default is {{value|7.5}}. Diameter of the rolling circle of epicycloid, normalized by the {{PropertyData|module}} (see [[FCGear_CycloidGear#Notes|Notes]]). |
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* {{PropertyData|head_fillet|Float}}: Default is {{value|0 |
* {{PropertyData|head_fillet|Float}}: Default is {{value|0}}. |
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* {{PropertyData|root_fillet|Float}}: Default is {{value|0 |
* {{PropertyData|root_fillet|Float}}: Default is {{value|0}}. |
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* {{PropertyData|beta|Angle}}: Default is {{value|0 |
* {{PropertyData|beta|Angle}}: Default is {{value|0 °}}. With the helix angle β a helical gear is created (positive value → rotation direction right, negative value → rotation direction left). |
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* {{PropertyData|double_helix|Bool}}: Default is {{false}} |
* {{PropertyData|double_helix|Bool}}: Default is {{false}}, {{true}} creates a double helix gear (see [[FCGear_CycloidGear#Notes|Notes]]). |
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* {{PropertyData|module|Length}}: Default is {{value|1 |
* {{PropertyData|module|Length}}: Default is {{value|1 mm}}. For racks the module equals the pitch and so is the distance between corresponding points on adjacent teeth (see [[FCGear_CycloidGear#Notes|Notes]]). |
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* {{PropertyData|simplified|Bool}}: Default is {{false}}. If {{true}} the rack is drawn with a constant number of teeth to avoid |
* {{PropertyData|simplified|Bool}}: Default is {{false}}. If {{true}} the rack is drawn with a constant number of teeth to avoid topological renaming. |
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* {{PropertyData|clearance|Float}}: Default is {{value|0 |
* {{PropertyData|clearance|Float}}: Default is {{value|0.25}} (see [[FCGear_CycloidGear#Notes|Notes]]). |
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* {{PropertyData|head|Float}}: Default is {{value|0 |
* {{PropertyData|head|Float}}: Default is {{value|0}}. Additional length of the tip of the teeth, normalized by the {{PropertyData|module}}. |
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See [[ |
See [[FCGear_CycloidGear#Notes|FCGear CycloidGear]]. |
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==Useful formulas== <!--T:43--> |
==Useful formulas== <!--T:43--> |
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See [[ |
See [[FCGear_CycloidGear#Useful_formulas|FCGear CycloidGear]]. |
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==Scripting== <!--T:45--> |
==Scripting== <!--T:45--> |
Latest revision as of 19:03, 6 October 2022
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FCGear CycloidRack |
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.
- 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
,true
creates 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
. Iftrue
the 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.