I spoke to Henry about 3D modeling and LEGOS and this is what he had to say:
A: My brothers were missing a bunch of LEGOs and I thought that if I could make a basic design, then I could modify it to make other kinds of LEGOs.
Q: What other objects have you modeled in Tinkercad?
A: I made a birthday card for my brother and a 2x2 LEGO block.
Q: What do you like most about 3D modeling?
A: If you keep trying, you get it right and then you have something to show for your work.
Q: What is the biggest challenge related to 3D modeling?
A: The finer details [of an object] and trying to design it without a support structure* so it won't collapse.
*A support structure is an automated 3D structure that prints from the ground up under any overhangs within a model.
Q: What have you changed after seeing each print?
A: The thickness of parts of the model and the size of the top bumps. Also whether to print with supports or not and upside down or right side up.
Q: How do you feel when a print doesn't come out the way you expected?
A: A bunch of times I thought "this is definitely gonna work." And then when [I saw the print] I said, "darn! I still have to keep working..."
Q: What do you think you will design next?
A: Different types of LEGOs such as slanted ones.
— Tatian Greenleaf