There were a lot of issues with the printers that the Orthodontic Lab Brys-Callewaert had before, like parts that fell off from the Formlabs and the closed structure of the different resin possibilities that made developing new products really expensive. The Stratasys® printers required really expensive resin and were a big cost in maintenance and support. Besides that, the Lab had to scale up the production of parts, which was impossible with a printer that needed 10 hours for one build job.