Designing in Tinkercad
for 3D Printing
Multiple Choice Quiz
1. An overhang is a part of a model that is...
supported underneath
partially or fully unsupported underneath
vertical
floating
2. Which of the following overhang angles are generally classed as acceptable for 3D printing without
support material?
30 degrees
50 degrees
55 degrees
80 degrees
3. Which one of these statements is true?
The smaller the overhang angle, the worse the surface quality
The larger the overhang angle, the worse the surface quality
4. Bridging refers to...
a 45 degree overhang between 2 points
a 90 degree overhang supported on 1 side
a horizontal wall
a horizontal overhang that will print across 2 points
Student Name
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Designing in Tinkercad
for 3D Printing
Multiple Choice Quiz
5. When bridging large distances without support material, you will notice...
drooping of the model
underextrusion
good surface quality
material burning around the nozzle
6. Generally, if walls are drawn at a quarter of the thickness of your nozzle diameter, the following will
happen:
they will print at the same diameter as your nozzle
they will print at half the thickness of your nozzle diameter
they will be disregarded and not printed at all
the whole model will not print
7. It is recommended to draw your walls...
at least twice as thick as your nozzle diameter
at least the same size as your nozzle diameter
at least 3 times as thick as your nozzle diameter
at least twice as thick as your layer height
8. When orientating models for 3D printing, you should...
ensure the largest surface area is on the print bed, regardless of anything else
try and minimise the amount of overhanging features over 45 degrees
always enable support material
try and minimise the amount of overhanging features over 30 degrees
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Designing in Tinkercad
for 3D Printing
Multiple Choice Quiz
9. Generally, what will happen if you try and slot a 3D printed 10x10x10mm cube into a 10x10x10mm hole?
It will fit in but will be very tight
It will fit in loosely
It will not fit in
10. Holes are generally printed...
at the exact same size they were designed
smaller than the size they were designed
larger than the size they were designed
closed up
11. When engraving or embossing details onto a model, you should ensure that...
they are the exact same thickness as your nozzle diameter
they are at least the same thickness as your nozzle diameter
their thickness is smaller than your nozzle diameter
they are at least the same thickness as your layer height
12. To ensure good bed adhesion you should...
minimise the surface area touching the print bed
design a model with no overhangs
design a model with no bridges
ensure there is sufficient surface area touching the print bed
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Designing in Tinkercad
for 3D Printing
Multiple Choice Quiz
13. If your model has a very small surface area touching the print bed, the model may...
topple over during printing
cause the slicing software to not generate a path
adhere too well to the print bed
have a poor surface quality
14. Fillets are helpful to...
increase the strength of models
make prints stick to the print bed
ensure overhangs are printed well
ensure bridges are printed well
15. To help cool sharp and narrow points to reduce deformities from heat, you can...
calibrate your printer well
print the model with the sharp and narrow points touching the print bed
duplicate the model and print them both at the same time
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