Computer 3D Printing Question and Answers

 STD VI : 3D DESIGN & PRINTING USING TINKERCAD

                             

I	MULTIPLE CHOICE QUESTIONS
1.	Identify the incorrect statement about tinkercad a)used to create simple design b)can be used in web browser c)designs are stored in cloud d)it is extremely difficult to use
2.	The ruler tool is found in a) workplane b)helper section c) basic shape d) featured shape
3.	Default measurement of workplane is ------ mm. a)200 x 200 b)100 x 100 c) 300x300 d) 150x 250
4.	Short cut key to copy an image is a)ctrl + c b) ctrl + copy c) ctrl + v d) copy
5	Short cut key to paste an image is a)ctrl + v b) ctrl + p c) ctrl + c d) type paste
6	Short cut key to create duplicate of an image is a)ctrl + dup b) ctrl + d c) ctrl + c d) ctrl + v
II 1) Ans 2) Ans	ANSWER THE FOLLOWING QUESTIONS How will you convert 2d images into 3d objects? The image selected should have only solid colours .There should be no gradient or shadow .Convert image to SVG(scalable vector graphic) format using free online tool. The image gets converted and downloaded in downloads folder. What is Tinkercad? Tinkercad is simple online 3D design tool that is used to create simple designs from scratch or quickly modify existing designs.
3) Ans	Explain significance of ruler tool. It allows us to measure the different dimensions of objects and distance between them.
4) Ans	Explain steps to change measurement unit to inches? We can use Edit grid button. Click on drop down arrow of units to switch to inches.
5) Ans	What is the use of Edit Grid? Edit grid is helpful when we want to be sure that our design will fit on printer without having to scale it.
6) Ans	Explain main components of 3D printer. Filament: It is the ink of 3D printer. It is loaded on spool. The filament used is PLA polyactic acid. Extruder: It is the core of 3D printer .It is a place where plastic is drawn, melted and pushed out. Nozzle: It is small hollow steel rod. The extruder pushes melted filament to print bed.
7) Ans	List some of measures involved in maintenance of 3D printer. 1. One should be trained to use printer. 2. Always keep built plate clean. 3. The nozzle should be cleaned properly as it gets clogged. 4.Remove filament from printer after use and keep it moisture free

Note: Students should learn the 3D printing notes too.

Answers to MCQ:

(1-d, 2-b, 3-a, 4-a, 5-a, 6-b )

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