MakerCoin

The MakerCoin is meant to be a go-to test print for new filaments. The custom nature of the print means there are lots of possibilities in terms of design. The constraints of the task meant limitations on size, 6cm in length and 1.25cm in thickness. Additionally, the shape of the Coin had to be derived from a revolved sketch, it not require any supports, be gear-like in design, contain no moving parts, and it must slope downwards in the middle to some extent. With this in mind I wanted to have a semi-gear design, but have rounded edges and instead of a constant slope downward, more of a staircase descent. From this initial sketch its clear the overall shape I was going for. 

After the initial revolve shape I wanted to create my gear-like design. I decided to go with smaller indents that were more frequent rather than large indents that only occurred a few times. 

Here is the before

And this is the result. 

Next I cut rectangles to look like spokes on a wheel. I debated whether or not to cut through the entire object with the rectangles or to make indents, and I settled on cutting all the way through to give it a more open appearance. 

Here's the result of cutting through. 

Following the rectangles I put a hole through each part in between spokes. Excluding the two on the top because that where I planned on putting my initials. 

Now that my design had taken on a very gear-like appearance I wanted to add my initials, engraved into the front face. Doing this was tricky because I used the spline tool to make bubble letters and it was hard to connect each line perfectly. 

Here's the result. 
 

Following that design choice there wasn't much else left besides cleaning up the edges, but I decided to add small engraved holes into the center ring. To complete the gear look and fill some empty space. 

Finally my design was almost finished. All that was left was to fillet all the edges to give the design a slick look. 

Now it was time to print. I chose a dark yellow color because to me the design gave off “Star Wars desert coin” energy and I wanted to have a finished product that would resemble that. 

Here is the final printed product:

Obviously it printed a bit rough, in order to fix this we used a heat gun to try and melt away some of the stringy bits. Here's how it came out. 

Still fair amount of string but with some sanding and plucking I was able to clean it up to look much better. 

All in all I think I achieved the goal of making a custom emblem coin, with a final product that has a theme and not many difficult steps to create a cool final product.