Doesn't Matter

2mm

I used the print settings that Devin Montes from make anything used to make a hood emblem for his BMW.
Print at 100% scale.

Post-Printing

Step one - I found the center of the piece then marked it.

Step two - Then took a 10/32 screw cut it down to a smaller length.

Step three - I drilled a hole slightly smaller then the screw and then very carefully took pliers and a really strong lighter or a torch then screwed it into the hole of the emblem. This helps the screw stay into the emblem and be stronger.

Step four - I spray painted it black

How I Designed This

I designed this by drawing it first making each part a different color thats going to be at different layer. Like my image. I then uploaded to http://3dp.rocks/lithophane/ and selected domed top shape then under setting made sure that it was on negative and left everything else the same then downloaded it and when in cura I scaled it to 2 inches in diameter and sailed it to 36% from Z axis. Theres probably a better way to do this but I don't know how. But I fixed it so it can be printed at 100% scale.