The document provides instructions for creating a runner between two mold plates using CimatronE software. It describes sketching the runner design, creating the 3D runner body based on the sketches, setting local cross section parameters, merging bodies into one, and cutting the runner shape into the mold components. The goal is for the runner to provide channels for molten material to flow from the sprue to gates and fill the mold cavity.

1. Runner
CimatronE 8.5 Tutorial

3. Table of Contents
Runner................................................................................................................................. 1
Runner Introduction......................................................................................................... 1
Sketch .............................................................................................................................. 1
Runner body..................................................................................................................... 4
CimatronE 8.5 Runner Documentation i

4. ii Runner Documentation CimatronE 8.5

5. Runner
Runner Introduction
Runners are channels through which molten material flows from the sprue to the gates to fill a mold cavity. By
definition, a runner is created between two plates. It can cut one of the plates or both of them.
This process begins with a user sketch of the runners and ends with the mold being cut by the runners
Sketch
Create sketch
Unpack the file: MD_runner.ctf
Open the assembly: MD_MD.elt.
From Mold Design guide, click the Runner Design icon, select the Pattern Sketch icon
CimatronE 8.5 Runner Documentation 1

6. Select the plane as indicated in the picture.
The Runner part has been created under the main assembly, and it is automatically activated.
Create the following sketch.
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7. Copy the sketch
Create an axis defined by the hole indicated by the arrow in the picture.
Copy the sketch – Radial ; Counter = 3
Theta=120
You may use a mixture of lines and sketches as input for the runner body.
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8. Runner body
Runner body
Select the Runner Bodies icon.
Select the three sketches and exit.
The Runner Cross Section dialog is displayed.
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9. Select the cross section as indicated in the picture. The numeric fields are now available.
Enter the desired size for the cross-section elements
examine the resulted runner body (according the parameters you have set).
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10. Note that you can use your own defined cross section by pressing the "Other Cross section” button .
Then select any 2d -closed sketch from the display area as the cross section.
Local cross section
Set a local cross section. Select the icon in the dialog, than select the segment indicated in the picture.
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11. Set different values to the cross section. Click the picture button to display the picture of the cross section
and its parameters.
Note that local section is marked in blue circle while general section is marked in blue cross.
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12. Jump back to the previous step. Change the option Flat End to Revolve End.
Select OK.
Merge
Merge the six bodies into one body.
Select OK.
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13. Cut by Runner
Cut the mold components with the runner body.
Select the Cut by Runner icon.
Note that the main assembly is automatically activated.
Select the K20 of the movable side as the object to be cut.
Select the merge runner body as the cutting object
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14. Select OK. Hide the runner body to display the runner in the movable side.
This runner is cut only the movable side, there maybe other runner sections that both sides should be cut.
You may complete the exercise by cutting the Sprue bushing and adding gates.
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