OSE Piping Workbench

Hint: See Workbench Source Code at PVC_Pipe_and_Fittings_Library#OSE_Piping_Workbench

Introduction

The OSE pipe workbench is a FreeCAD workbench with pipes and fittings. It creates pipes and fitting using FreeCAD Parts workbench and Flamingo.

Installation

In a Linux system

$ mkdir ~/.FreeCAD/Mod
$ cd ~/.FreeCAD/Mod
$ git clone https://github.com/rkrenzler/ose-piping-workbench.git

Command line instructions work on Ubuntu 16.04

Hint:For those new to Linux, always remember Linux is case sensitive. mkdir ~/.FreeCAD/Mod creates the mod directory inside of FreeCAD. this might already exist, and that is fine.

Pipes

The dimensions of the PVC pipes can be found here PVC_Pipe. Wikipedia on Nominal Pipe Size (NPS) [1],

A pipe is described by its outer diameter OD, its wall thickness Thk and its height H.

To create a pipe, click in OSE piping workbench. Select pipe dimensions and click "OK".

To add new dimensions adjust CSV pipe.csv in tables directory within workbench directory to add new pipe dimensions to the list.

Elbows

An elbow is described by an angle alpha, outer pipe diameter POD, inner pipe diameter PID, H, J, M.

To create an elbow, click in OSE piping workbench.

To add new elbows, adjust elbow.csv in tables directory within workbench directory.

Useful links: [2]

Couplings

A (general) coupling is described by dimensions: POD, POD1, PID, PID1, L, M, M1, N. The dimensions POD1 and PID1 are not from a official specifications. They are derived from pipe size and schedule. In a reducer coupling, the pipe dimensions on one side POD and PID differ from on the other side POD1 and PID1.

To create a coupling, click in OSE piping workbench.

To add new couplings, adjust coupling.csv in tables directory within workbench directory.

Bushings

A bushing is described by dimensions N, L and pipe dimensions. As pipe dimensions we use POD, PID1, and POD1.

To create a bushing, click in OSE piping workbench.

To add a new coupling to the part list, adjust bushing.csv in tables directory within workbench directory.

Tees

A tee is described by parameters G, G1, H, H1, M, M1, and pipe dimensions. As pipe dimensions we use POD, POD1, PID, and PID1.

To create a tee click in OSE piping workbench.

To add a new tee to the part list, adjust tee.csv in tables directory within workbench directory.

Corners

An corner is described by dimensions G, H, M and pipe dimensions. As pipe dimensions we use POD and PID.

To create a corner, click in OSE piping workbench.

To add a new corner to the part list, adjust corner.csv in tables directory within workbench directory.

Programming

• FreeCAD scripted object
• It should be possible to represent the object with "classic" FreeCAD forms like cylinders, spheres, sweeping objects ...
• It should be possible to use solids.
• The main purpose is to create tools for moving, rotations, and fittings.

Documentation

• FreeCAD scripted objects
• Forum entry on freecadweb.org

Useful links

• An example of fittings with dimensioned drawings produced by Aetna lastics.