Macro Spring

File:Text-x-python Spring Simul
Description
Spring simulation. Author: Mario52
Author
Mario52
Download
None
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Macro Version
1.0
Date last modified
None
FreeCAD Version(s)
None
Default shortcut
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See also
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Simulates the compression and relaxation of a spring.

Uses

Open the 2 files below (Spring.FCMacro and Spring.FCStd) in FreeCAD with 2 screens (Menu: Windows > Tile) and click in the window and the macro and click F6 (debug macro) to run the macro

The File

Spring.FCStd

Script

Spring.FCMacro

import FreeCAD, FreeCADGui, Draft, Part
from FreeCAD import Base
import time

ii = iib = FreeCAD.getDocument("Spring").getObject("Helix001").Pitch
i = ib = FreeCAD.getDocument("Spring").getObject("Helix001").Height

pas = 1

for ii2 in range(int(60)):
    if pas == 0:
        if ii > iib-1:
            pas = 1
        else:
            ii += 1
            i = (ii * 10)
    else:
        if ii < 2:
            pas = 0
        else:
            ii -= 1
            i = (ii * 10)
   
    FreeCAD.getDocument("Spring").getObject("Helix001").Pitch = ii
    FreeCAD.getDocument("Spring").getObject("Helix001").Height = i
    App.Console.PrintMessage(str(ii2)+"  " + str(ii)+"  " + str(i)+"  " + str(pas) +"\n")
    time.sleep(0.1) # modify the time here
#FreeCAD.getDocument("Spring").getObject("Helix001").Pitch = iib
#FreeCAD.getDocument("Spring").getObject("Helix001").Height = ib

Link

The discussion page: scripting animations