Hey guys. I still haven't given the step by step instructions on how to put a picture on a Yeti (or like) cup. So here they are...at least how I do it: I use Corel Draw X7.
1. Get as high quality of a picture as possible.
2. Size it to the size you want it to engrave.
3. Go to Bitmap > Auto Adjust
4. Go to Bitmap > Grayscale (it will convert to grayscale)
5. Go to Effects>Adjust>Brightness/Contrast/Intensity
6. Adjust picture accordingly. I will play with the settings, but usually I go up on brightness to about 15-20, the contrast is usually around the 40-55 range, and intensity goes negative to about -10 or a little more.
7. Then set up and print just like you would any normal Yeti. The settings are the same. I print with a 50W Helix, so my settings are 50s/100P.
Thats about it! Thanks so much! I'll post a picture in the comments, being as I am doing one now.
