PartDesign InvoluteGear/tr: Difference between revisions
(Updating to match new version of source page) |
(Updating to match new version of source page) |
||
Line 33: | Line 33: | ||
==Usage== |
==Usage== |
||
=== Create the profile === |
|||
⚫ | |||
# Optionally activate the correct body. |
|||
⚫ | |||
# Set the Involute parameters. |
# Set the Involute parameters. |
||
# Click {{Button|OK}}. |
|||
⚫ | |||
=== Create a spur gear === |
|||
# Select the gear profile in the tree. |
|||
# Press the {{Button|[[Image:PartDesign_Pad.svg|16px]] PartDesign Pad}} button. |
|||
# Set the pad's {{PropertyData|Length}} to the desired face width of the gear. |
|||
# Click {{Button|OK}} |
# Click {{Button|OK}} |
||
⚫ | |||
== |
=== Create a helical gear === |
||
{{Version|0.19}} |
|||
⚫ | |||
# Select the gear profile in the tree. |
|||
⚫ | |||
# Press the {{Button|[[Image:PartDesign_AdditiveHelix.svg|16px]] [[PartDesign_AdditiveHelix|PartDesign AdditiveHelix]]}} button. |
|||
# Choose as Axis the normal of the gear profile, that is {{MenuCommand|Normal sketch axis}} {{Version|0.20}}. (In earlier versions the {{MenuCommand|Base Z axis}} can be used as long as the profile's plane has not been altered.) |
|||
# Choose a {{MenuCommand|Height-Turns}} mode. |
|||
# Set the {{PropertyData|Height}} to the desired face width of the gear. |
|||
# To set the desired helical angle an [[Expressions]] for the {{PropertyData|Turns}} is required. |
|||
## Click the blue [[Image:Bound-expression.svg|16px]] icon at the right of the input field. |
|||
## Enter the following formula: {{incode|Height * tan(25°) / (InvoluteGear.NumberOfTeeth * InvoluteGear.Modules * pi)}}, where {{incode|25°}} is an example for the desired helical angle (also known as beta-value) and {{incode|InvoluteGear}} is the {{PropertyData|Name}} of the profile. |
|||
## Click {{Button|OK}} to close the formula editor. |
|||
# Click {{Button|OK}} to close the task panel. |
|||
Hint: To make the helical angle an accessible parameter, use a ''dynamic property'': |
|||
⚫ | |||
# Select the profile. |
|||
# In the [[Property_editor|Property editor]] activate the {{MenuCommand|Show all}} option in the context menu. |
|||
# Again in the context menu, select {{MenuCommand|Add Property}}. Note: this entry is only available when {{MenuCommand|Show all}} is active. |
|||
# In the {{MenuCommand|Add Property}} dialog: |
|||
## Choose {{incode|App::PropertyAngle}} as Type. |
|||
## Set {{incode|Gear}} as Group. |
|||
## Set {{incode|HelicalAngle}} as Name (without a space). |
|||
## Click {{Button|OK}} |
|||
# Now a new property {{PropertyData|Helical Angle}} (space added automatically), with an initial value of {{incode|0.0°}}, becomes available. |
|||
# Assign the desired helical angle to the new property. |
|||
# In the formula of the {{PropertyData|Turns}} property of the AdditiveHelix, you can now reference {{incode|InvoluteGear.HelicalAngle}} instead of the hard coded value of e.g. {{incode|25°}}; again assuming {{incode|InvoluteGear}} is the {{PropertyData|Name}} of the profile. |
|||
== Properties == |
|||
⚫ | |||
* External |
* {{PropertyData|External Gear}}: True or false |
||
⚫ | |||
⚫ | |||
⚫ | |||
⚫ | |||
==Tutorials== |
==Tutorials== |
||
Line 57: | Line 95: | ||
* [[FCGear_Workbench|FCGear Workbench]] |
* [[FCGear_Workbench|FCGear Workbench]] |
||
<div class="mw-translate-fuzzy"> |
<div class="mw-translate-fuzzy"> |
Revision as of 11:26, 22 January 2022
PartDesign InvoluteGear |
Menü konumu |
---|
Part Design → Involute gear... |
Tezgahlar |
PartDesign |
Varsayılan kısayol |
Hiçbiri |
Versiyonda tanıtıldı |
- |
Ayrıca bkz |
Hiçbiri |
Description
Tanım
For more detailed information see Wikipedia's entries for: Gear and Involute Gear
Usage
Create the profile
- Optionally activate the correct body.
- Go to the menu Part Design → Involute gear....
- Set the Involute parameters.
- Click OK.
- If there was no active body: drag and drop the gear into a body for the application of further features like padding.
Create a spur gear
- Select the gear profile in the tree.
- Press the PartDesign Pad button.
- Set the pad's VeriLength to the desired face width of the gear.
- Click OK
Create a helical gear
- Select the gear profile in the tree.
- Press the PartDesign AdditiveHelix button.
- Choose as Axis the normal of the gear profile, that is Normal sketch axis introduced in version 0.20. (In earlier versions the Base Z axis can be used as long as the profile's plane has not been altered.)
- Choose a Height-Turns mode.
- Set the VeriHeight to the desired face width of the gear.
- To set the desired helical angle an Expressions for the VeriTurns is required.
- Click the blue icon at the right of the input field.
- Enter the following formula:
Height * tan(25°) / (InvoluteGear.NumberOfTeeth * InvoluteGear.Modules * pi)
, where25°
is an example for the desired helical angle (also known as beta-value) andInvoluteGear
is the VeriName of the profile. - Click OK to close the formula editor.
- Click OK to close the task panel.
Hint: To make the helical angle an accessible parameter, use a dynamic property:
- Select the profile.
- In the Property editor activate the Show all option in the context menu.
- Again in the context menu, select Add Property. Note: this entry is only available when Show all is active.
- In the Add Property dialog:
- Choose
App::PropertyAngle
as Type. - Set
Gear
as Group. - Set
HelicalAngle
as Name (without a space). - Click OK
- Choose
- Now a new property VeriHelical Angle (space added automatically), with an initial value of
0.0°
, becomes available. - Assign the desired helical angle to the new property.
- In the formula of the VeriTurns property of the AdditiveHelix, you can now reference
InvoluteGear.HelicalAngle
instead of the hard coded value of e.g.25°
; again assumingInvoluteGear
is the VeriName of the profile.
Properties
- VeriExternal Gear: True or false
- VeriHigh Precision: True or false
- VeriModules: Pitch diameter divided by the number of teeth.
- VeriNumber Of Teeth: Sets the number of teeth.
- VeriPressure Angle: Acute angle between the line of action and a normal to the line connecting the gear centers. Default is 20 degrees. (More info)
Tutorials
Related
PartDesign
- Structure tools: Part, Group
- Helper tools: Create body, Create sketch, Edit sketch, Map sketch to face
- Modeling tools
- Datum tools: Create a datum point, Create a datum line, Create a datum plane, Create a local coordinate system, Create a shape binder, Create a sub-object(s) shape binder, Create a clone
- Additive tools: Pad, Revolution, Additive loft, Additive pipe, Additive helix, Additive box, Additive cylinder, Additive sphere, Additive cone, Additive ellipsoid, Additive torus, Additive prism, Additive wedge
- Subtractive tools: Pocket, Hole, Groove, Subtractive loft, Subtractive pipe, Subtractive helix, Subtractive box, Subtractive cylinder, Subtractive sphere, Subtractive cone, Subtractive ellipsoid, Subtractive torus, Subtractive prism, Subtractive wedge
- Transformation tools: Mirrored, Linear Pattern, Polar Pattern, Create MultiTransform, Scaled
- Dress-up tools: Fillet, Chamfer, Draft, Thickness
- Boolean: Boolean operation
- Extras: Migrate, Sprocket, Involute gear, Shaft design wizard
- Context menu: Set tip, Move object to other body, Move object after other object, Appearance, Color per face
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Hubs: User hub, Power users hub, Developer hub