Project Brief
You are working as design engineer at ACK workshop. You get a Request for Proposal (RfP) from the
School of Engineering (client). The RfP includes initially the design of a Movable Electric Stacker model.
This model will be produced later by another production firm that is selected by the client.
The client (represented by your professor) has no constraints regarding the material to be used. Each
member of the design team must individually develop a design idea, calculate reaction forces and forces at
the joints, draw it with suitable CAD software including all necessary details, and submit it later as drawing
folder. All dimensions must be in mm. Your design team needs to discuss advantages and disadvantages of
each design idea, decide on one of the designs using an engineering method, and prepare the design and
production documents. The group final design idea must be also analysed by using appropriate software (e.g.
Multiframe), and by performing detailed hand calculations. Software analysis is required only for the final
portfolio technical report. All detailed workshop and assembly drawings and documents need to be
presented and submitted to the production team by the beginning of week 6. The necessary material needed
to construct the model must be purchased by the design team as well. Purchased material is reimbursed by
submitting the receipts to ACK before the end of the semester. Furthermore, in order to qualify for
reimbursement, your purchase order needs to be approved by your professor.
Production teams must ensure that all necessary material and information to construct the model are
received from the designer teams by the end of week 6.
Requirements:
1. A stable user-friendly product must be created.
2. The total height of the stacker with all components is 800 mm.
3. The stacker should be movable along flat surfaces.
4. The forks length should not exceed 400 mm. This applies to the straddle legs as well.
5. The forks must be lifted by using a single DC motor.
6. The cross-sectional area of each fork must be rectangular, not exceeding the dimensions 40 mm x 20 mm.
7. The minimum lifting height of the fork is 400 mm.
8. The minimum load capacity of the stacker is 5 kg. Testing weight has a cross-section of 400 mm x 400 mm
9. The product (lifting height) x (load capacity) must be maximized.
10. The masts need to include trusses.
11. Joints could be either pin joints (using nuts and bolts) or welded or a combination of both.
12. No balancing weights are allowed on the back side of the stacker. However, stabilizing plates with a maximum length of 150-200 mm can be used.
13. The product must not be painted and all work must be carried out on-campus (i.e. in workshop)
14. The model has to be ready for testing at the beginning of week 13.
15. Budget: 50.- KD per team (please hold receipts for purchased items to submit them to Client for reimbursement before the end of the semester).
Students can enter the workshop only with safety overall and safety shoes. Using workshop machines is only
allowed under supervision of the workshop staff.
This is a team work. All team members are responsible for the produced model.