Pfast

Pfast

Pfast draws ANSI and Metric drilled holes, clearance holes, countersunk holes, counterbored holes, threaded (tapped) holes, pipe threads and fasteners.

Each hole and fastener is a parametrically defined block, making it easy to move, copy, rotate and otherwise manipulate the object while saving disk space. Fastener assemblies (fastener, nut and washers) are associated using groups, allowing the assemblies to be selected as a unit or individually.

Pfast Holes and Fasteners retain description, size and thread information that can be listed with the PfastList command or for use in leaders with the the PfastLabel command.

Layer, linetype, color and lineweight properties can be assigned by customizing the Pfast.ini file. Many of these properties can also be adjusted after insertion using the various Pfast Edit commands.

Pfast by CCAD inc. works with AutoCAD 2000 and later, but does not work with AutoCAD LT because AutoCAD LT does not support AutoLISP, the language used to write our Software Add-ons.

 

CCADs Pfast Toolbar
Pfast Toolbar
CCADs Pfast Tab
Pfast Tab

 

Common Functions

The functions outlined below are present in all or most Pfast commands.

All Holes and Fasteners

CCADs Pfast Measurement SystemMeasurement System – Unit of measure for current drawing. Adjusts scale factor of metric holes in Inch drawings and ANSI holes in a metric drawing.

All Holes and Fasteners (except Drilled and Pipe Threaded Holes)

CCADs Pfast StandardStandard – ANSI or Metric

All Holes (except Pipe Threads)

CCADs Pfast Plan ViewPlan View – Draws Plan View if checked. Assigns Plan View and Linetype and Center Mark Settings for Plan View of Hole. Prompts for location. Prompts for depth if Elevation View is not selected.

CCADs Pfast Elevation ViewElevation View – Draws Elevation View if checked. Assigns Elevation View and Linetype and Center Mark Settings for Elevation View of Hole. Prompts for location and rotation angle.

 


Drilled Hole

CCADs Pfast Drilled HoleCCADs Pfast Drilled Hole Dialog BoxDrilled Hole – Creates a specified drilled hole. The result is an anonymous block that can be modified with the Pfast Edit commands.

Type – Type of Drilled hole.


Clearance Hole

CCADs Pfast Clearance HoleCCADs Pfast Clearance Hole Dialog BoxClearance Hole – Creates a clearance hole based on a specified thread size. The result is an anonymous block that can be modified with the Pfast Edit commands.

Fastener Size – Thread size used to calculate the clearance hole.

Fit – Close or Free fit.


Countersunk Hole

CCADs Pfast Countersunk HoleCCADs Pfast Countersunk Hole Dialog BoxCountersunk Hole – Creates a Countersunk hole based on a specified head type and thread size. The result is an anonymous block that can be modified with the Pfast Edit commands.

Fastener Type and Size – Fastener type and thread size to calculate the countersink and clearance hole.

Clearance Hole – Actual Clearance Hole diameter.

Head Ht. (Depth) – Depth of Countersink based on screw head height. For reference only.

CSink Dia. – Diameter of Countersink. Calculated by program. For reference only.

Additional Depth – Added to Head Ht. Depth to determine actual depth of the countersunk hole.


Counterbore Hole

CCADs Pfast Counterbore HoleCCADs Pfast Counterbore Hole Dialog BoxCounterbore Hole – Creates a Counterbore hole based on a specified fastener type and size. The result is an anonymous block that can be modified with the Pfast Edit commands.

Fastener Type and Size – Fastener type, fit and thread size to calculate the counterbore and clearance hole.

Clearance Hole – Actual Clearance Hole diameter.

Additional C’Bore Depth – Added to Head Ht. Depth to determine actual depth of the countersunk hole.

C’bore Depth (Flush) – Depth of Counterbore.

C’bore Dia. – Diameter of Counterbore.


Threaded Hole

CCADs Pfast Threaded HoleCCADs Pfast Threaded Hole Dialog BoxThreaded Hole – Creates a tapped hole based on a specified thread size. The result is an anonymous block that can be modified with the Pfast Edit commands.

Fine/Coarse – Fine or Coarse Threads.

Size – Thread size.


Pipe Threads

CCADs Pfast Pipe ThreadsCCADs Pfast Pipe Threads Dialog BoxPipe Threads – Creates internal or external pipe threads.

Elevation – Draws Elevation View if checked. Prompts for location and rotation angle.

Plan – Draws Plan View if checked. Prompts for location.

Type – Internal or External Threads.

Nominal Pipe Size – List of available pipe sizes.

Diameter – Diameter of pipe.

Length – Length of thread.


Fasteners

CCADs Pfast FastenersCCADs Pfast Fasteners Dialog BoxFasteners – Inserts standard screws, nuts and washers.

CCADs Pfast Fasteners Thread and LengthThread and Length – List of available thread sizes is dependent on Group and Style. List of available fastener lengths are dependent on Thread Size, Group and Style.

Check Distance – The Check Distance button can be used to select two points indicating the length to be fastened. After Checking the Distance, only Fasteners that exceed the checked length can be selected.

CCADs Pfast Fasteners Groups and StylesFastener Groups and Styles – The fasteners are divided in to several Groups, which in turn are organized into Styles. The Groups and Styles vary between ANSI and Metric.

Fastener Preview – The fastener preview is an approximate picture of the selected fastener and options. A plain, regular washer and hex nut are used for all selections.

ANSI Fastener Groups and Styles

  • Cap Screws – Slotted Flat Csink, Round Head, Fillister Head, Hexagon Socket Head, Hexagon Flat Csink Hexagon Button Head
  • Bolts – Hex
  • Shoulder Screws – Socket Head
  • Set Screws – Flat Point Socket, Cup Point Socket
  • Dowel Pins – Flat, Pull
  • Machine Screws – Round Head, 80-82 Flat Head, 100 Flat Head, 100 Flat Head Close Tol., 80-82 Undercut Csink Flat Head, Hex Washer Head, Slotted Truss Head, Hex Head, Pan Head, Slotted Fillister Head, Slotted Oval Csink Head
  • Washers – Plain B-Narrow, Plain B-Regular, Plain B-Wide, Helical Spring Lock-Regular, Helical Spring Lock-Heavy, Helical Spring Lock-Extra Duty, Hi-Collar Helical Spring Lock
  • Nuts – Hex Flat, Hex Flat Jam, Heavy Hex Flat, Heavy Hex Flat Jam, Hex Jam, Heavy Hex, Hex Thick, Hex

Metric Fastener Groups and Styles

  • Cap Screws – Socket Head, Socket Low Head, Hexagon Flat Csink, Hexagon Button Head
  • Bolts – Hex Head
  • Shoulder Screws – Socket Head
  • Set Screws – Flat Point Socket, Cup Point Socket
  • Parallel Pins – Flat, Pull

CCADs Pfast Fasteners Washers and NutsWashers and Nuts – Washers can be placed at the Fasteners head and Nut end. If a Washer is placed at the Nut end, a Nut must be used. These selections will be reflected in the Fastener Preview.

If a Nut and/or Washer is not available for a Fastener size, the text to the right of the drop down will read Size Unavailable.

A hidden linetype can be assigned to the nut and washer by selecting the appropriate check box. The linetype of the washer under the fastener head is controlled by the Plan View linetype of the fastener.

Fastener Head – Plan View – Draws Plan View of Fastener head if checked. Assigns Linetype and Center Mark Settings for Plan View of Fastener. Prompts for location.

Fastener Body – Elevation View – Draws Elevation View of Fastener body or shaft if checked. Assigns Linetype and Center Mark Settings for Elevation View of Fastener body. Prompts for location and rotation angle.

Fastener Head – Elevation View – Draws Elevation View of Fastener head if checked. Assigns Linetype and Center Mark Settings for Elevation View of Fastener head.

CCADs Pfast Fasteners Views and Center Lines


Pfast Label

CCADs Pfast LabelFasteners/Hole Label – Places an automatic note on a fastener or hole based on the description, size and thread information stored with the object. The GDT.shx font file is used for the leader text, incorporating the depth, countersink and counterbore symbols in the note.

To add a label, select the hole or fastener. The selection point will determine the arrow location of the leader. Select addtional points for the leader. Press ENTER when finished.

CCADs Pfast Label Example


Pfast List

CCADs Pfast ListLists or indentifies selected fastener or hole based on the description, size and thread information stored with the object. If a clearance hole is involved, the thread size used to select the clearance hole diameter is displayed.

CCADs Pfast List Example


Pfast Edit

CCADs Pfast EditCCADs Pfast Edit Detail
Sometimes a hole or fastener will need minor changes, like the clearance hole shown here. The bottom portion of the hole needs to be trimmed to the angled edge of the part.

CCADs Pfast Edit ExplodedAfter selecting the PfastEdit command, click the hole or fastener to edit. The hole is temporarily exploded so you can make the necessary modifications.

CCADs Pfast Edit TrimThe Trim command is used to remove the end of the lines. Any command can be used to alter the hole or fastener object.

CCADs Pfast Edit SaveAfter completing the changes, select the Save back changes to reference button (circled) or right-click and choose Close REFEDIT Session > Save Reference Edits… from the menu or ribbon.

 

CCADs Pfast Edit FinalThe PfastEdit command is complete and the object returned to a block.


Toggle Center Marks

CCADs Pfast Toggle Center MarksCCADs Pfast Toggle Center Marks ExampleToggles the center lines and marks on and off in selected holes and fasteners.


Make Object Solid

CCADs Pfast Make Object SolidCCADs Pfast Make Object Solid ExampleChanges the linetype to continuous of object in hole or fastener block.


Make Object Hidden

CCADs Pfast Make Object HiddenCCADs Pfast Make Object Hidden ExampleChanges the linetype to hidden of object in hole or fastener block.


Change Object Ltscale

CCADs Pfast Change Object LTSCALECCADs Pfast Change Object LTSCALE ExampleChanges the linetype scale of object in hole or fastener block.

After you are prompted to Select an object:, you will be prompted for a Linetype Scale. Type a new value and press ENTER. You may then select additional objects to which you can apply the same Linetype Scale.


Toggle Group

CCADs Pfast Toggle GroupCCADs Pfast Toggle Group ExampleTurns group selection on and off. This allows you to select the fastener, washers and nut in a fastener assembly individually or as a group.

 

 

 


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