Tutor Topics:


Wayang Outpost









Interactive Tutors:


  • The study and description of motion, without regard to its causes

Injection Molding

Finite Element Analysis


  • Stamping
  • Strip Layout
  • Die Casting
  • Forging

Spatial Reasoning

Technical Drawing:

  • Drafting for technical and mechanical illustration

Rotation Drawing:

  • Mechanical drawings depicting movement around a vertical axis


  • Shaping metal by using localized compressive forces

Die Casting:

  • A process for producing engineered metal parts by forcing molten metal under high pressure into reusable steel molds


  • An Interactive Case-Based Computer Program for Inquiry Teaching in a variety of displines.

Why the name RASHI?


RASHI in Action





Injection Molding Tutor



The Injection Molding Tutor allows students to construct designs for molded polymer part and to add features such as bosses, `thru' holes and ribs. It provides animated 3D tooling solutions of the student's design, critiques the design, advises about relative cost, and proposes alternative designs. Formative evaluation demonstrated that the Tutor can be as effective as several traditional lectures and homework assignments.



The Stamping Tutor helps students understand the relationship between sheet metal part designs and required stamping stations. The student creates a design on a blank metal part and the tutor constructs the necessary animated stamping stations. The Tutor identifies design issues such as dissimilar features, closely spaced features, narrow cutouts and projections and bends.

The InjectionInjectorMolding Tutor constrains the students' design choices, provides straightforward feedback and shows a library of visualizations produced by commercial off-the-shelfsystems.The Tutor shows an animation of an injection molding machine along with a simple open/shut mold, The student then creates new designs, using either an "L-braket" or a box as the base.. The student selects features to add and then defines the mold closure direction. The Tutor then critiques the student's design and a color animation of tooling that would be required to produce the part design is displayed.

We evaluated the engineering and chemistry tutors and showed that they are as effective as several hours of lectures and homework assignments within traditional classroom setting. For example, the Injection Molding Tutor was evaluated with more than 100 students at UConn and UMass/Amherst.


Authors / Developers

Corrado Poli
Department of Manufacturing and Industrial Engineering

Beverly Woolf, Ryan Moore, Nick Steglich
Department of Computer Science
University of Massachusetts Amherst




Sponsored by National Science Foundation/TIE grant, National Science Foundation/Darpa and the College of engineering