As described on previous entry, this is a major update, improving the laser cooling and adding a reflection protection part. You should replace some parts and use a new heatsink for upgrade the previous build.
3dpBurner2 assemblig guide and BOM sections has been updated with the news and all donations has been also emailed with the new files details.
Assembling video: https://www.youtube.com/
Working video: https://www.youtube.com/watch?