I like repetier also. It is my fav. software to use. I bought S3d a few months ago. I made the plunge. I cant get it to work on my printers. I am not transferring settings right or missing something somewhere, but when I start a print with s3d it just crashes the head into my printer while homing which makes no sense to me. But it only does it with s3d. Not by printing from sd and not by printing from repetier. I feel like I wasted the $150.