4. CONCEPT GENERATION - S-Division-2022-2023-Odd/Repo-07 GitHub Wiki

FUNCTION TREE.

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MORPHOLOGICAL CHART.

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PUGH CHART.

Objectives Weights
Safety 8
Ease of use 6
Portability 7
Use of standard parts 5
Cost 4
Cleaning efficiency 8
Design Objectives Weights design 1 design 2 design 3 design 4
Safety 8 + ++ datum
Ease of use 7 + + datum
Portability 3 - - datum
Use of standard parts 5 0 0 datum
Cost 4 - + datum
Cleaning Efficiency 8 + ++ datum
Score(+) 23 43 0 23
Score(-) 7 3 0 3
Total 35 15 40 0

Design 01

IMG-20230120-WA0017

Design 02

IMG-20230120-WA0015

Design 03

IMG-20230120-WA0018

Cleaning unit consists of rack and pinion, brush, whiteboard, supportive board etc. Rack and pinion mechanism consists of a circular pinion of a diameter of 1.5 inches and long rectangular rack of a length of 18 inches. The pinion is coupled with the motor that means the pinion rotates with the shaft of the motor. The rotary motion of the motor is transferred to the rack & the rack moves in translatory direction. The brush is an important part for this project. To clean the white board smoothly a brush of better quality has been used. It has attached to the brush holder with the help of glue & the brush holder is attached to the end of the rack with a nut & bolt. Foam has been used as the cleaner. A sheet of 10 inches × 6 inches size has been used as a white board. The whiteboard is enclosed within two reels. A wooden block is used as a supporting base for the whole system and is made up of plywood. It is of length 50cm, breadth 5cm and height 40cm. It is used to support the whiteboard sheet at the time of writing. The motor and rack & pinion mechanisms are also fitted on wooden block. The reels are fixed with this supportive board by the help of angle plate.

Design 04

IMG-20230120-WA0016

Selected Design

Design 03

IMG-20230120-WA0018

Cleaning unit consists of rack and pinion, brush, whiteboard, supportive board etc. Rack and pinion mechanism consists of a circular pinion of a diameter of 1.5 inches and long rectangular rack of a length of 18 inches. The pinion is coupled with the motor that means the pinion rotates with the shaft of the motor. The rotary motion of the motor is transferred to the rack & the rack moves in translatory direction. The brush is an important part for this project. To clean the white board smoothly a brush of better quality has been used. It has attached to the brush holder with the help of glue & the brush holder is attached to the end of the rack with a nut & bolt. Foam has been used as the cleaner. A sheet of 10 inches × 6 inches size has been used as a white board. The whiteboard is enclosed within two reels. A wooden block is used as a supporting base for the whole system and is made up of plywood. It is of length 50cm, breadth 5cm and height 40cm. It is used to support the whiteboard sheet at the time of writing. The motor and rack & pinion mechanisms are also fitted on wooden block. The reels are fixed with this supportive board by the help of angle plate.