3D Printing

 For this blog I will be showing my process of creating a 3D printed object. For my 3D printed object i decied on a spinner ring as it is already hard enough to make a ring needing a lot of knowledge, tools and materials to create but a spinner ring is one step harder than just a regular ring. 

This is a link to the website that shows how to make a spinner ring :https://www.kernowcraft.com/jewellery-making-tips/silversmithing-and-soldering-advice/how-to-make-a-spinner-ring

After reading the guide I found out that it is indeed hard to amke a ring, needing things like an anvil, heating and protection tools and a whole bunch of other stuff to make thus I concluded 3D printing it would be a lot easier.

CAD Process

Thankfully online there was a video on how to create the spinner ring that I could follow

So, following this video, I firstly measured the size of my right index finger with a vernier caliper.

It turned out to be 17.1 mm long and thus I began to create the design in fusion 360.

Using half of the length measured,as a base first then I will add the inner ring to the side of it extending

I decided for the height of the ring to be 8 mm but anything suitable should be fine, these are the dimentions for the inner ring 3.3mm sandwiching a rectangular hole that is 1.4mm by 0.5 mm

For the outer ring, I allowed a 0.2 mm gap between the inner ring and this is how it is able to spin, the other ring should be the same dimentions as the inner ring execpt the hole is instead a rectangle extruding from the middle that is 1.0 mm by 0.5 mm

This should be the final sketch and using the revolve function on the center axis as highlighted above will get you a ring shape.

This should be what it looks like

And here is how it looks on the inside. Next is to fillet it.

for the outer corners I chose to fillet by 1mm and the inner corners by 0.5mm. The inner points can be hard to identify so I made a video to show it.

Next we can engrave something on the ring so I used the diamter of the outer ring to get the circumference by using π x D which in this case D can be calculated by adding 4.4mm to your original which in my case would be 21.5mm

I got around 67.544 mm for my circumference and that will be the length of the text box, the text box should be the circumference by the height which for mine is 8mm.

Put anything you want in the text box as long as it fits and look okay then using the embross function to circle the text around the ring. Then engrave around a 0.3 mm depth to get the text on the ring.

This should be what the final product looks like. Now all thats left to do is to print it!

Heres the cura settings

And heres how it looks like

Unfortunatly the ring is unable to spin and the sizing is a bit wrong being only able to fit my ring finger instead.

Reflection

Unfortunatly this ring could not work as functioned as there was material in betweeen the gap which I can only imagine being from when the material glides over the nozzle it will cause some material to get stuck in between.

Maybe next time I will change the settings to make it work

Overall I learned 3D printing can be a great tool to help creat things that would otherwise be impossible to make. I will take note of this for our final project this semester. Although 3D printing might take a long time to create objects.

Link to ring : https://a360.co/3eFimmE

STL file : https://drive.google.com/file/d/1n547jNo3ueWU72keU71hq-4gszOBC3HA/view?usp=sharing