Customizable parts

[kludikovsky]

(I am new to freeCAD and somewhat also to CAD, so please bear with me.)

Is there a possibility in freeCAD to generate "customizeable parts"?
Customizeable parts should mean parts which have some constraints changeable after they being inserted into a construction.

My challenge:
I'd like to construct equipment using "squared pipes" (or profiles). So there is basically only one part which is the base profile. The only thing which changes in the application of the part is the lenght. So I I'd like to generate one profle part which I then can apply several times and only change the lenght of the part.

I have not found anything so far ( with the exception of pyhton scripts).
I would be glad if you could tell me if there is a solution to my questions and guide me to a description.
Thx.

[microelly2]

Welcome to the forum.FreeCAD is a parametric modeller, so most objects are parametric. The parameters in the simplest cases are properties in the properties tab of an object. in your case the profile can be a Part Designb pad or a Part Extrusion. Both objects have a properties to set the length.

[dxp.dev]

You can use the expressions from the spreadsheet WB : https://www.freecadweb.org/wiki/Spreads ... rkbench/id

[bejant]

Hi kludikovsky, and welcome! Here's a quick example to illustrate how the use of a Spreadsheet can control the model. Changing the values in the B column of the Spreadsheet changes the 3D model, because Expressions are used for the Length fields of the Distance Constraints of Sketch.

20190911a-SpreadsheetDriven.FCStd

(20.27 KiB) Downloaded 15 times

OS: Ubuntu 18.04.3 LTS (ubuntu:GNOME/ubuntu)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19. (dated 2019-08-21)
Build type: Release
Python version: 3.6.8
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

[kludikovsky]

Thx for quick responses!