Solids Editing ... Delete Faces

DELETE FACES option deletes selected faces. This is a quick way to remove features such as chamfer, fillets, holes and slots.

Create CYLINDER of D Ø13.25 and 1 unit in height in the SW Isometric view as shown in Figure 1
Invoke a CYLINDER (Draw menu > Solids > Cylinder)
Command: _cylinder
Current wire frame density: ISOLINES=4
Specify center point for base of cylinder or [Elliptical] <0,0,0>: Pick a point
Specify radius for base of cylinder or [Diameter]: D
Specify diameter for base of cylinder: 13.25
Specify height of cylinder or [Center of other end]: 1

Set the POLAR setting to 45° and draw the Construction line as shown in Figure 2




Figure 1

Figure 2

Create 4 SMALL CYLINDER of R 1.06 and height -1 unit as shown in Figure 3
Invoke a CYLINDER (Draw menu > Solids > Cylinder)
Command: _cylinder
Current wire frame density: ISOLINES=4
Specify center point for base of cylinder or [Elliptical] <0,0,0>: Pick the top end point of the construction line
Specify radius for base of cylinder or [Diameter]: 1.06
Specify height of cylinder or [Center of other end]: -1

Alter the shade mode to GOURAUD SHADED from the Shade Toolbar as shown in Figure 4


Figure 3


Figure 4

SUBTRACT the bigger cylinder from the smaller ones as shown in Figure 5
Invoke SUBTRACT (Modify > Solids Editing > Subtract)
Command: _subtract
Select solids and regions to subtract from ..
Select objects: Pick the bigger cylinder
Select objects: Enter
Select solids and regions to subtract ..
Select objects: Pick the smaller cylinder 1
Select objects: Pick the smaller cylinder 2
Select objects: Pick the smaller cylinder 3
Select objects: Pick the smaller cylinder 4
Select objects: Enter

Change to TOP VIEW and create the center part.
Draw 4 purple Construction line as shown in Figure 6




Figure 5

Figure 6

OFFSET vertical lines by 1 unit on left and right
OFFSET horizontal lines by 2 unit on top and bottom
Create the CIRCLE of R1 at both ends as shown in the Figure 7

TRIM the middle object as shown in Figure 8


Figure 7




Figure 8

PEDIT the middle object to convert into a polyline
Command: pedit
Select polyline or [Multiple]: Select one line
Object selected is not a polyline
Do you want to turn it into one? <Y> Y
Enter an option [Close/Join/Width/Edit vertex/Fit/Spline/Decurve/Ltype gen/Undo]: J
Select objects: Create a window around the middle object
Enter an option [Open/Join/Width/Edit vertex/Fit/Spline/Decurve/Ltype gen/Undo]: Enter

EXTRUDE the middle object as shown in Figure 9
Invoke an EXTRUDE (Draw menu > Solids > Extrude)
Command: _extrude
Current wire frame density: ISOLINES=4
Select objects: Pick the object
Select objects: Enter
Specify height of extrusion or [Path]: 1
Specify angle of taper for extrusion <0>: Enter

Alter the shade mode to GOURAUD SHADED from the Shade Toolbar as shown in Figure 10



Figure 9

Figure10

SUBTRACT the outer cylinder from the middle object as shown in Figure 11
Invoke SUBTRACT (Modify > Solids Editing > Subtract).
Command: _subtract
Select solids and regions to subtract from ..
Select objects: Select the outer cylinder
Select objects: Enter
Select solids and regions to subtract ..
Select objects: Select the object in the middle
Select objects: Enter


Figure11

DELETE the front grove as shown in Figure 14
Invoke Delete Faces (Modify menu > Solids Editing > Delete Faces).
Command: _solidedit
Solids editing automatic checking: SOLIDCHECK=1
Enter a solids editing option [Face/Edge/Body/Undo/eXit] : _face
Enter a face editing option [Extrude/Move/Rotate/Offset/Taper/Delete/Copy/coLor/Undo/eXit] : _delete
Select faces or [Undo/Remove]:Click on the top face and the ring will also get highlighted as shown in Figure 12
Select faces or [Undo/Remove/ALL]: Shitf+click on the border of the top face to limit the selection to the groove face as shown in Figure 13
Select faces or [Undo/Remove/ALL]: Enter (the groove will be deleted as shown in Figure 14


Figure 12

Figure 13

Figure 14

ROTATE the face as shown in Figure 18
Invoke Rotate Faces (Modify menu > Solids Editing > Rotate Faces).
Command: _solidedit
Solids editing automatic checking: SOLIDCHECK=1
Enter a solids editing option [Face/Edge/Body/Undo/eXit] <eXit>: _face
Enter a face editing option
[Extrude/Move/Rotate/Offset/Taper/Delete/Copy/coLor/Undo/eXit] <eXit>: _rotate
Select faces or [Undo/Remove]: Click on the top face and the ring will also get highlighted as shown in Figure 15
Select faces or [Undo/Remove/ALL]:Shitf+click on the border of the top face to limit the selection to the middle object as shown in Figure 16
Select faces or [Undo/Remove/ALL]: Enter
Specify an axis point or [Axis by object/View/Xaxis/Yaxis/Zaxis] <2points>: Z
Specify the origin of the rotation <0,0,0>: Pick the center point of the big cylinder as shown in Figure 17
Specify a rotation angle or [Reference]: 45


Figure15

Figure16

Figure17

 


Figure18


Deleting a hole from the cylinder

Create CYLINDER of R3 and 6 units height as shown in Figure 19
Invoke a CYLINDER (Draw menu > Solids > Cylinder)
Command: _cylinder
Current wire frame density: ISOLINES=30
Specify center point for base of cylinder or [Elliptical] <0,0,0>: Pick a point
Specify radius for base of cylinder or [Diameter]: 3
Specify height of cylinder or [Center of other end]: 6


Figure 19

Create SMALL CYLINER of R 1 inside this big cylinder as shown in Figure 23
Invoke a CYLINDER (Draw menu > Solids > Cylinder)
Command: _cylinder
Current wire frame density: ISOLINES=30
Specify center point for base of cylinder or [Elliptical] <0,0,0>: Pick the bottom as the center point as shown in Figure 20
Specify radius for base of cylinder or [Diameter]: 1
Specify height of cylinder or [Center of other end]: Pick the center at the top as shown in Figure 21
Specify second point: Pick the center at the bottom as shown in Figure 22


Figure 20


Figure 21

Figure 22


Figure 23

SUBTRACT the outer cylinder from the inner one as shown in Figure 24
Invoke SUBTRACT (Modify > Solids Editing > Subtract).
Command: _subtract
Select solids and regions to subtract from ..
Select objects: Select the outer cylinder
Select objects: Enter
Select solids and regions to subtract ..
Select objects: Select the inner cylinder
Select objects: Enter

DELETE the inner cylinder as shown in Figure 26
Invoke Delete Faces (Modify menu > Solids Editing > Delete Faces).
Command: _solidedit
Solids editing automatic checking: SOLIDCHECK=1
Enter a solids editing option [Face/Edge/Body/Undo/eXit] <eXit>: _face
Enter a face editing option [Extrude/Move/Rotate/Offset/Taper/Delete/Copy/coLor/Undo/eXit] <eXit>: _delete
Select faces or [Undo/Remove]: Click on the top face of the cylinder
Select faces or [Undo/Remove/ALL]: Shitf+click on the border of the top face to limit the selection to the inner cylinder as shown in Figure 25
Select faces or [Undo/Remove/ALL]: Enter

 


Figure 24

Figure 25

Alter the shade mode to GOURAUD SHADED from the Shade Toolbar as shown in Figure 26


Figure26


Delete a chamfer from a box

Create a BOX as shown in Figure 27
Invoke a BOX (Draw menu > Solids > Box)
Command: _box
Specify corner of box or [CEnter] <0,0,0>: Pick a point
Specify corner or [Cube/Length]: L

Specify length: 10
Specify width: 2
Specify height: 10


Figure27

CHAMFER an edges by 1.5 unit as shown in Figure 30
Invoke Chamfer (Modify menu > Chamfer)
Command: _chamfer
(NOTRIM mode) Current chamfer Dist1 = 1.5000, Dist2 = 1.5000
Select first line or [Polyline/Distance/Angle/Trim/Method]: Select face shown in Figure 28
Base surface selection...
Enter surface selection option [Next/OK (current)] <OK>: OK
Specify base surface chamfer distance <1.5000>: 1.5
Specify other surface chamfer distance <1.5000>: 1.5
Select an edge or [Loop]: Select an edge or [Loop]: Select edge as shown in Figure 29


Figure 28

Figure 29

Figure 30

Repeat the above commands to create CHAMFER on all four sides as shown in Figure 31 - 32


Figure 31

Figure 32

DELETE the top left chamfer as shown in Figure 34
Invoke Delete Faces (Modify menu > Solids Editing > Delete Faces).
Command: _solidedit
Solids editing automatic checking: SOLIDCHECK=1
Enter a solids editing option [Face/Edge/Body/Undo/eXit] <eXit>: _face
Enter a face editing option [Extrude/Move/Rotate/Offset/Taper/Delete/Copy/coLor/Undo/eXit] <eXit>: _delete
Select faces or [Undo/Remove]: Select face as shown in Figure 33
Select faces or [Undo/Remove/ALL]: Enter


Figure 33

Figure 34

 


Delete a fillet from the wedge

Create WEDGE as shown in Figure 35 - 36
Invoke a WEDGE (Draw menu > Solids > Wedge)
Command: _wedge
Specify first corner of wedge or [CEnter] <0,0,0>: Pick a point
Specify corner or [Cube/Length]: L
Specify length: 10
Specify width: 2
Specify height: 10


Figure 35

Figure 36

Create FILLET as shown in Figure 39
Invoke Fillet (Modify menu > Fillet)
Command: _fillet
Current settings: Mode = NOTRIM, Radius = 0.0000
Select first object or [Polyline/Radius/Trim]: Select the edge as shown in Figure 37
Enter fillet radius: 2
Select an edge or [Chain/Radius]: Enter as shown in Figure 38


Figure 37

Figure 38

Figure 39

DELETE the fillet as shown in Figure 42
Invoke Delete Faces (Modify menu > Solids Editing > Delete Faces).
Command: _solidedit
Solids editing automatic checking: SOLIDCHECK=1
Enter a solids editing option [Face/Edge/Body/Undo/eXit] <eXit>: _face
Enter a face editing option [Extrude/Move/Rotate/Offset/Taper/Delete/Copy/coLor/Undo/eXit] <eXit>: _delete
Select faces or [Undo/Remove]: While selecting face other faces may also get highlighted as shown in Figure 40
Select faces or [Undo/Remove/ALL]:Shitf+click to limit the selection as shown in Figure 41
Select faces or [Undo/Remove/ALL]: Enter


Figure 40

Figure 41

Figure 42

 

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