SSL Multigen II Models Installation

System Requirements:

The models in the folder are in Multigen Flight format, .flt, and can be viewed using Multigen II version 1.4.1. If loading into Performer, used the Multigen 15.4d Performer loader. To learn more about Multigen and there products go to their website.

Downloading:

The SpaceSystemsLab Models package holds all models and textures needed to view the different projects using Multigen II, 7.6 MB uncompressed.

Download the gzip compressed file (3.4 MB)

Uncompressing:

After downloading the SpaceSystemsLab.tar.gz file, uncompress and untar the file using the following commands.

>gunzip SpaceSystemsLab.tar.gz
>tar xf SpaceSystemsLab.tar

This will create a directory in the local folder named SpaceSystemsLab.

Viewing the models:

To have the relative links work correctly, it is best to launch Multigen from the SpaceSystemLab folder.

~/SpaceSystemsLab> mgfltx

Then open the desired model using the relative link

./data/models/<>.flt

The file ./data/models/main.flt references all the other files yielding the complete database with the underwater tank, its structures, and the laboratory projects.

To view any of the models with perfly, execute perfly from the SpaceSystemsLab/ folder

~/SpaceSystemsLab> perfly ./dat/models/<>.flt

Contents of SpaceSystemsLab folder:

Inside the SpaceSystemsLab/ folder contains only on folder data/. The SpaceSystemsLab/data/ folder holds two folders models/ and textures/. The textures/ folder contains several megabytes of pictures used as the many textures for the models.

The most important folder is the SpaceSystemsLab/data/models/ folder which contains several Multigen database files.

 main.flt

This file combines all of the other databases, to include each project and structure inside the Neutral Buoyancy Research Facility (NBRF) tank. Switch statements are used to allow multiple copies of the vehicles, this is necessary for the graphical simulation to perform it function correctly. However, there is little need to have several copies of these vehicles when viewing the database.

 pallet.flt

This is the SpaceLab pallet which Ranger will be attached to during the Shuttle mission. Different task elements are arranged to allow Ranger to perform several example space maintenance tasks during flight.

 palletNBV.flt

This is a mockup of the SpaceLab pallet we use at the Neutral Buoyancy Research Facility (NBRF). There currently are less task elements, however Ranger has performed several underwater test working on these tasks.

 ranger2.flt

This is the model for Ranger, a four armed telerobot which is design to perform maintenance tasks in space. switch statements are used to display each of the four arms. Also two additional arms are given, these arms are illustrate the difference between the underwater version and the space version of Ranger. Also several arms use switch statements to change the end effector, or robotic hand, to specific tools

 scamp.flt

This is the model for SCAMP, this free flying (or swimming) object moves around carrying a video camera. This vehicle is used to get into smaller, and potential more dangerous locations, to provide an additional camera view of operations in the NBRF.

 ssv.flt

SCAMP Space Simulation Vehicle (SSV) is designed similar to SCAMP. However, its purpose is not only to provide additional views of underwater operations but also to be used as a Space Simulator. Advanced control algorithms, with the neutral buoyant environment, are used to give SSV a greater realism on flying a vehicle in space.

 tank.flt

This this the 25 foot deep tank at the Neutral Buoyancy Research Facility. This underwater tank is used to simulate space by using the effect of buoyancy on objects. When "weighed" properly objects in the tank will not float or sink, they will stay where they are. And if push against, the object will float similarly to the same object floating in space. Although water drag does exist, neutral buoyancy is a valid method of space simulation used by NASA to train astronauts how to work in space.