The shapes below help you learn how to design in the eMachineShop CAD. Click on the shape closest to what you want to draw to see how it was created. 

Also see Linear Slide and Dovetail.

Also see File | New | Sample Shapes and the Wizards and the 3D section of the Forum

washer_3d five_side_box_3d pipe_holes_3d pipe_spacer_3d shaft_clamp_3d pulley_3d

pawn_3d gear_3d sheet_metal_box_3d front_panel_3d hole_types_3d steppedrecess21 Shape_13_3d

Dovetail

Dovetails are a common method of making two parts fit together that must slide linearly. 

To make a dovetail:

  1. Draw a rectangle.
  2. Set Z to 1.
  3. Draw a smaller rectangle inside the first so that the left and right ends meet the ends of the outer rectangle.
  4. Set Z to -0.5.
  5. Choose Line | Machine | Side wall | 45.
  6. Choose View | 3D to verify the female part.
  7. Choose File | Save | DovetailFemale.
  8. Choose File | SaveAs | DovetailMale.
  9. For the inner rectangle set Z to 0.5.
  10. Choose View | 3D to verify the male part.
  11. Choose View | Right … add Comments To Machinist to flatten the sharp edge by ~.05″ and, if desired, to not machine the short ends of the dovetail.
  12. Adjust the designs so that clearance between the two parts is more than the tolerance you select for the job.

Disc with Hole

washer_3dwasher_2d

To create a simple flat washer:

  1. Create two circles.
  2. Set the Z value of each circle as shown.

https://www.youtube.com/watch?v=9TQ-dnouSxg

Rounded Box

To create a five side machined box:

  1. Draw a rectangle.
  2. Line | Corner | Round. Line | Contour | Inner.
  3. Set Z values as shown.
  4. Side holes and cutouts can be added in side views.

five_side_box_3d five_side_box_top

https://www.youtube.com/watch?v=m56FWGqMGH0

Pipe with Hole

To create a pipe with side holes:

  1. Draw concentric circles in the top view.
  2. Set Z values as shown.
  3. In the Front view draw the hole circle and set Z as shown. (The light colored lines are created automatically.)

 pipe_holes_3d pipe-holes-top_1 pipe_holes_front

https://www.youtube.com/watch?v=_LbgnRARs4I

Pipe Spacer

To create a pipe spacer:

  1. Draw a circle in the Top view.
  2. Set Z to the length of the spacer.
  3. In the Front view draw an arc and straight line at the top and bottom with Z = Air Inside to specify that all material inside the line should be removed. 

 pipe_spacer_3d

https://www.youtube.com/watch?v=oQ3HtcI44Lo

Shaft Clamp

 To create a shaft clamp:

  1. Choose View | Top
  2. Draw the shape shown by the bold line.
  3. Set Z as shown. 
  4. Choose View | Back
  5. Draw a circle for the retaining screw. 
  6. Choose Line | Machine | Thread and select the desired thread. 
  7. Set Z to slightly more than the length of the screw. 
  8. Create the outermost circle for the unthreaded bore using a diameter slightly more than the screw size. 
  9. Set Z to the depth of the unthreaded portion.
  10. Choose View | Top
  11. Verify that the light projection lines are as shown.
  12. Choose View | 3D.

shaft_clamp_3d shaft_clamp_top shaft_clamp_back

 

 

https://www.youtube.com/watch?v=xRsf–2p2oA

Pulley

 To create a pulley:

  1. Create a circle in the top view.
  2. Set Z as shown. 
  3. Choose View | Front.
  4. Draw the cross section to be revolved (the dark line) which must be to one side of the center axis and must touch three sides of the rectangle. 
  5. Set Z to Revolve. The light colored rectangle and center line are created automatically. 
  6. Choose View | 3D.

pulley_3d pulley_top pulley_front

 

https://www.youtube.com/watch?v=tlhO3dOQrho

Pawn

To create a chess pawn:

  1. Create a circle in the Top view. 
  2. Set Z as shown. 
  3. In the Front view draw the cross section to be revolved (the dark line) which must be to one side of the center axis and must touch three sides of the rectangle..
  4. Set Z to Revolve. The light colored rectangle and center line are created automatically. 
  5. Choose View | 3D.

  pawn_3d pawn_toppawn_front

 

 

Gear

 To create a gear:

  • Choose File | New | Gear
  • Fill in the desired parameters.
  • Click OK.
  • Choose View | 3D.

gear_3d gear_top

 

https://www.youtube.com/watch?v=HK0bGV4QoNs

Sheet Metal Box 

 To create a pulley:

  1. Create a circle in the top view.
  2. Set Z as shown. 
  3. Choose View | Front.
  4. Draw the cross section to be revolved (the dark line) which must be to one side of the center axis and must touch three sides of the rectangle. 
  5. Set Z to Revolve. The light colored rectangle and center line are created automatically. 
  6. Choose View | 3D.

 sheet_metal_box_3d sheet_metal_box_2d

 

https://www.youtube.com/watch?v=JVzSZa7rt0k

Front Panel

To create a front panel:

  1. Draw the outer rectangle, inner cutouts and mounting holes if needed. 
  2. Choose Job | Finish and consider adding one more more finishes such as brush, anodize, powder coat, etc. 
  3. Choose View | 3D.

front_panel_3d front_panel_2d

 

https://www.youtube.com/watch?v=CNnGsPWiwlo

Hole Types

hole_types_3d hole_types

To create a thru hole:

  1. Draw a circle.
  2. Set Z to Air Inside.

To create a countersink:

  1. Draw a circle.
  2. Set Z to Air Inside.
  3. Choose Line | Machine | Auto | Chamfer and select the desired settings. 
  4. For the angle use 90 minus head angle / 2. For example, for an 82 degree head use (90 – 82/2 = 49).
  5. Adjust the chamfer size so the side view fits a drawing of the flat head screw which you can make using Comments To Myself. (Using a chamfer size of (head diameter – screw diameter) / 2 does not account for recessing the head or any rounding at the edge of the head.)

To create a counterbore:

  • For the outer circle set Z to minus the bore depth.

To create a blind hole:

  • Set Z to a negative value less than the overall part depth.

https://www.youtube.com/watch?v=dvSjH6UqFyI

Stepped Recess 

To create a recess or protrusion adjacent to a curved shape:

Let’s assume Z = 0.4 for the outer rectangle and that all but the Z = -0.2 notch is already drawn.

 

  1. At the location of the notch draw a rectangle extending past the left edge of the outer rectangle and past the large arc.
  2. Choose Edit | Select All.
  3. Click the Repeat button.
  4. Nudge the copy fully away from the original, using the arrow keys.
  5. Choose Line | Intersect.
  6. Remove all lines except the shape corresponding to the arced notch.
  7. Group the lines of the notch.
  8. Set Z to -0.2.
  9. Delete the original notch rectangle.
  10. Nudge the arced notch into place.
  11. Choose View | 3D.

steppedrecess21 steppedrecess12

 

https://www.youtube.com/watch?v=cr_X-dFSM4A

Protruding Foot

To create a foot at the base of a shape (let’s assume the circle is already drawn):

  1. At the location of the “foot” draw a rectangle extending inside the outermost circle.
  2. Choose Edit | Select All.
  3. Click the Repeat button. 
  4. Nudge the copy fully away from the original, using the arrow keys.
  5. Choose Line | Intersect.
  6. Delete large arc and straight segments inside the circle.
  7. Group the lines of the “foot”.
  8. Set Z to -0.75.
  9. Select original rectangle and circle.
  10. Choose Line | Intersect.
  11. Delete small arc and straight segments inside the circle.
  12. Group the lines of the boundary region and set Z to 0.8.
  13. Nudge the “foot” into place.
  14. Choose View | 3D.

Shape_13_3d shape_13_2d

 

 

https://www.youtube.com/watch?v=UQ7Mj3_Mtls

Linear Slide

One type of linear motion slide has a square groove along which an upside-down T shape slides.

To make a square-groove linear slide:

  1. Draw a rectangle 10 x 3″.
  2. Set Z to .75.
  3. Draw another rectangle 10 x 1
  4. Set Z to .505
  5. Center the second rectangle in the first.
  6. Click the Machine button.
  7. Click Grooves | Parameters.
  8. Enter .25, .25, .25, Add to form the square groove.
  9. Click OK, OK.
  10. Click the Pyramid button to see the 3D view.

Sphere

To create a sphere shape:

  1. In the Top view, draw a Circle 
  2. Set diameter to the diameter of the sphere. 
  3. Set the Z Value to the diameter of the sphere
  4. Click View | Front.
  5. Click the circle tool and snap a circle from the center of the dotted line to the midpoint of the right edge of the square.
  6. Draw a Line from the top of the dotted line to the bottom of the dotted line.
  7. Click on the Eraser tool and remove the left portion of the circle. You are left with a half-circle.
  8. Select the half circle and change the Z Value to Revolve
  9. Click on the 3D preview to view the sphere. 

More Samples

You can access additional sample shapes via the File menu. 

 
To view and load additional sample shapes:
  1. Choose File | New | Sample Shapes .
  2. Select a shape.
  3. Click Load.
 

Also review samples via File | Open | C:Program FileseMachineShopSamples.