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Blog 4: 3D Printing Assignment

  • Jul 31, 2024
  • 3 min read

Updated: Nov 22, 2024



Hello!

This is my fourth & final blog for ICPD module🥲

...and it is about 3D Printing!


This blog will be a bit different since it's mostly pictures and videos, so just sit back and relax😄




Practical 5 (Designing)


For the last practical, I only needed to design a 3D model in Fusion 360🥱

But in this practical, I get to design AND print a model with at least 1 movable joint👀🤗



Before I continue, allow me to introduce:

✨subtractive manufacturing✨



It is basically the opposite of additive manufacturing, where material is removed (e.g. from a solid block) to create the desired shape/part.



One example of this is milling, a process where a milling tool cuts away the material in a rotary motion👉







And for this practical, one of the design criteria is for it to not be easily manufactured using subtractive technologies...





...which is why I chose to make this print-in-place toy car,

following the tutorial in this YouTube video(22:23) below⬇️



Since there is this gap between the wheels and the car, as show below, it would be difficult to manufacture using subtractive technologies👎🙅‍♂️












For example, if I were to use milling, the drill would not be able to reach the part that is further inside the car, since it is blocked by the wheel🛞



Now, you've probably noticed that the tutorial is made for Tinkercad and not Fusion 360🤔

BUT, I did manage to make it in Fusion 360☺️


and here's a time-lapse⌛ of it:

...it only took 4+ hours🙃



Here is the embedded file of the toy car:



Now that the designing is done, time to print!


Practical 5 (Printing)


For the first print, the adhesion made the wheels stuck to the car, so I had to try again☹️



For the second print, the wheels barely worked & the supports broke off and left a rough spot on one of the windows😔



...and here are prints 3 & 4, I did both together since I wanted to test one with traction wheels.

The smooth wheel one was faster 🚗💨💨

It was also too big since Cura shows it would take >1hour each car⏰



The traction wheels were made using this sketch, I just had to cut out from the wheels✂️















...and here is the embedded file for the toy car 2.0🚗



Now for the final print, here is the video of it being made:

(I had to hold my phone up to the printer for 20+ mins for this🥲)



...and here it is🤗🤗🤗
















More pictures of the toy car can be found here👈



These are the final settings⚙️ for the toy car:


  • It is scaled down to 0.9 from the design in the embedded file, to ≈ 6.5 x 3.2 x 2.5cm in size

  • Since it is only a small print, 5% infill should be enough

  • No supports are needed since the overhangs are only 45°

  • 0.3mm resolution can be used since the smallest dimension is only ≈0.6mm



Watch the toy car in action!🚗💨





of course, I can't forget:

me every blog:





this is it.


It's been fun writing these blogs,


goodbye now.

😃🫡


"and in case I don't see ya, good afternoon, good evening, and good night!" (The Truman Show)









References:

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