CUSTOMIZE Your Happy Birthday Cake Topper - Lego Style

Use this OpenSCAD file to create your own custom 1-2 line lego style cake topper! This new version has a few updated letters, includes the entire alphabet, 0-9 and a space!

Just like the original, the cake topper looks like Lego plates which spell out ANYTHING you want! The dimensions of the letters are designed to be 100% accurate* to Lego plates, and you can even build on top of the studs! The back is flat, for easier printing, so you can only build on top of it, not under it. In order to keep the letters spaced accurately and still be legible, I've added a small bevel around the tops and sides of the letters, where they would touch other letters. 
*As with the original, you still can't build on the 7 - if anyone has ideas on how to make a legal 7 please share.

The generated cake topper will have small rounded spikes on the bottom to use to stick it into a cake or cupcakes, and you can control the length and spacing of these in the file! 

Using the File

• Text: Enter your text in lines 1 and 2 - you can also do just one line of text if you want!
• Stagger Buildable: Depending on the text, the top line might not line up exactly with the bottom line. If you want the studs to line up, check this box.
• Spike Offset: The spikes might not line up with your letters, so increase or decrease this as needed to ensure the spike is touching a letter, and that it fits on your cake!
• Spike Length: I suggest keeping spike length at 3, but feel free to play with it, maybe you have a really short or tall cake :) 

Print Settings

• Suggested Nozzle Size: 0.2 mm / 0.25 mm
• Brim: Suggested, I used a 4mm wide brim

I tested printing it with a bunch of different settings, and in order to get the studs to fit perfectly in real Lego, I highly suggest going with a nozzle smaller than 0.4, I used 0.2 for the final version, with 0.12 layers. You will likely want to use a brim on this, but depending on your printer you might be able to skip it. 

I also printed it a few times using 0.4 mm and 0.6 mm nozzles, and they obviously print a lot faster, but they aren't easy to build on top of - so if you care about the accuracy and want to build on it, use a small nozzle like 0.2 mm or 0.25 mm. If you just need to print it fast for a party and then toss it, go for 0.6 mm and it'll look fine from a distance!