Portfolio
Angelos RaftopoulosMechanical & Aeronautical Engineer
(master-level undergraduate degree)
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Olimpias S.A.
Mechanical Design Engineer, R&D Engineer
Olympic Mechanical S.A.
Mechanical Design Engineer, Construction Supervisor
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Contents
Zefyros team
Mechanical Design Engineer(undergraduate)
Freelance Engineer
Contractor of Solar Systems, Fire safety Studies, Energy
efficiency studies for buildings
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A.1.1 Olimpias S.A.
Design of a weighting system for Linear Moving Cups
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-Designed from plain paper
-Manufactured with CNC machinery
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A.1.2 Olimpias S.A.
Design of a weighting system for Linear Moving Cups
3d model in Solidworks
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Final weighting system
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A.1.3 Olimpias S.A.
Design of Plastic Cups with Rubber Components
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-Designed as an evolution
of an older cup
-Special effort was made for
more accurate weight
results and reduction of the
manufacturing cost
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A.1.4 Olimpias S.A.
Design of plastic Cups with Rubber Components
-3d model of the new cup
using Solidworks
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-Older cup assembled and
positioned on the special chain
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A.2.1 Olimpias S.A.
Design of Belt and Chain Conveyors
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-Drawings of large assemblies
(over 500 parts)
-Creating BOM tables
-Dimensioning of electric motors
A.2.2
-Drawings of Sheet Metal Parts
-Stress analysis of Sheet Metal
Parts
Olimpias S.A.
Design of Belt and Chain Conveyors
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A.2.3 Olimpias S.A.
Design of Belt and Chain Conveyors
-Drawings of framework
-Creating tables of
Weldments Cut List
-Stress Analysis of
Weldments
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A.2.4 Olimpias S.A.
Design of Belt and Chain Conveyors
-Drawings of revolved parts
(for lathe)
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(for lathe)
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A.2.5 Olimpias S.A.
Design of Belt and Chain Conveyors
-Calculating the transmission
-Sizing Sprockets and Chains
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-Sizing Sprockets and Chains
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A.3.1 Olimpias S.A.
Design of Rotating Machines
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-Design of an innovative machine for the
sorting of fruits and vegetables
-Design of a special weighting system for
cups which move in an arc track.
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A.3.2 Olimpias S.A.
Design of Rotating Machines
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-3d model in Solidworks
-Construction process
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A.3.2 Olimpias S.A.
Design of Rotating Machines
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-Rotating Potato Peeler
-Drawings
-Cutaway view of the central hub
-Disk
-Construction process
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A.3.3 Olimpias S.A.
Design of Rotating Machines
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-3d model in Solidworks -Final product
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A.4.1 Olimpias S.A.
Design of Moving Mechanisms with Pneumatic Cylinders
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-Construction process
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B.1.1 Olympic Mechanical S.A.
Supervising Construction
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-Supervising of the installation of machinery (belt
conveyors) in Recycling Factory ,Heraklion ,Greece
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B.2.1 Olympic Mechanical S.A.
Detail Drawing in Autocad 2D(Assistant)
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-Drawings in Autocad 2d
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B.3.1 Olympic Mechanical S.A.
On site draftings
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-Drafting and on hand
sketching
-Quick decisions are taken
when it is obligatory
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B.4.1 Olympic Mechanical S.A.
Work Scheduling
-Meeting short delivery deadlines
-Subcontractor tender assessment
- Attending client meetings
-Value management techniques
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B.5.1 Olympic Mechanical S.A.
CNC Machine programming
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-CNC Press Brake
-CNC Three axis drilling machine
-CNC Hydraulic Shear
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C.1.1 Freelance Engineer
Electromechanical Studies on Buildings
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-Electrical and Mechanical design/study for
buildings
-Energy efficiency studies for buildings (KENAK,
LEED)
-Energy performance certification of buildings
-Smart house configuration
-Fire safety studies for buildings
-Safety engineer
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C.2.1 Solar Systems Contractor
Design and Construction
-3d model
-Electrical Study
-Construction
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-Design and construction of stand-alone
Photovoltaic Systems for buildings
-Design and construction of grid connected
Photovoltaic Systems(Solar parks)
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D.1.1 Zefyros
Mechanical Design Engineer (undergraduate)
Dutch Association of
Technology Transfer (ATO)
Energy Research Centre of
Netherlands (ECN)
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-Zefyros is a wind powered vehicle which was built to
compete in the 1st World Race of Wind-Powered Vehicles,
Racing Aeolus 2008, in Den Helder, Netherlands.
http://www.windenergyevents.com/ .
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D.1.2 Zefyros
Mechanical Design Engineer(undergraduate)
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-CAD along with FEA was used to better validate the design transformation to
the construction of the Vehicle (Static and dynamic analysis).
Requirements which are referred in the notice of the race:
-Vertical projection of all parts do remain within the maximum length and width
of the circumferential bumper.
-Rotor area A
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D.1.3 Zefyros
Mechanical Design Engineer(undergraduate)
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-Power: 4Kw
-Max speed: 21 mph
-Height: 3.5m
-Width: 2m
-Rotor diameter: 1.95m
-CVT type gearbox
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D.1.4 Zefyros
Mechanical Design Engineer(undergraduate)
-Zefyros finished in the fifth position and the team
was awarded for the best use of sustainable
materials and spare parts.
-Zefyros team accomplishments were published in
European and Greek magazines
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