Here you can submit an existing diagram in .gcs (gem cut studio) format. We will detect the index wheel used and compute if it is convertible to other index wheels. If it is, we will generate the converted file and give you a zip file to download.

Note that if your design's pavillon contains a retroreflector, even if it is possible to convert it the conversion might impact your retroreflection.

You can convert to .gcs a .asc or .gem file by opening it into gem cut studio and selecting 'save as'