Pro/rNGINEER Wildfire Tips & Tutorial (Pro/E Wildfire 4.0, Wildfire 3.0, Wildfire 2.0 and 2001)

TUTORIAL: Disc Coil Spring using Curve from Equation in Pro/ENGINEER

TUTORIAL: Disc Coil Spring using Curve from Equation in Pro/ENGINEER

Version: Pro/E 2001, Wildfire, Wildfire2.0, Wildfire3.0, wildfire4.0

Datum Curve from Equation tool is to be used when you want to create a disc coil spring / planar spring in Pro/ENGINEER. We are going to create a datum curve from equation as the trajectory and then apply a sweep thru the spiral curve.


1. Create a new Solid Part file. From the tools icon, click the create datum curve icon create datum curve icon.

2. In the pops-up menu manager, choose From Equation and Done to proceed.

ProE curve from equation

3. The Curve: From Equation dialog box appears and you are requested to select a coordinate system (CSYS). Select a Csys from the display.

ProE curve from equation dialog box

4. You will need to define the Csys Type. For this tutorial, choose Cylindrical in the menu manager and proceed to the next step.

ProE curve from equation menu

5. Next, a Notepad window appears for you to input the Equation. You can write any mathematical equation to model the desire curve. For a spiral curve sit on a planar, the following equation is being use

R = 50 + t * (120)
Theta = t * 360 * 5
Z = 0

ProE curve from equation relation pad

6. You can substitute the values accordingly to design your own disc coil spring. The figure below may help you to understand the equation better.

spiral equation explaination

7. When you are done, click OK on the Curve: From Equation dialog box to confirm. The spiral curve should appear in your display by now.

 Disc Coil Spring using proe

After all, you can use the sweep feature to complete the disc coil spring.

You can download the completed Disc Coil Spring by clicking here. is an independent website providing tips and tutorials for Pro/ENGINEER users.
ProENGINEER version covered: ProE 2001, Wildfire, wildfire 2.0, Wildfire 3.0 and Wildfire 4.0
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