Ok, lets talk about photosensitive resins. These Resins are commonly used in Jewellery manufacture due to the higher resolution of finished prints and their ability to be burnt out like lost-wax and cast in various metals and alloys.
The type of printers used alongside these resins are SLA (Stereolithography) or DLP Digital or Direct Light Processing Printers. SLA Technology uses a laser to get Chains of polymers to link together.
What you're really looking for when working with these printers from a Jewellery point of view are things like time, build space, cost, maximum resolutions, and castability of printed resin.
There are many things to take into consideration when printing jewellery pieces to take through to casting, if there is a high level of detail in your designs, you want to know that your printer can achieve this level in the print. It’s no good designing something with a level of detail that your printer simply can’ t print. Size of the build area is also a major consideration as you may be wanting to print objects of different sizes. Typically the larger the printer area, the less resolution you will be able to achieve, so you really have to ask yourself what will you be printing most often and what level of detail is required for that object. bearing in mind with jewellery that detail is inevitably lost in the casting process so maximising your print resolution.
Resins also have their resolution limitations, so you want to find a compatibility between the resin and the printer. For instance B9 Creator’s newest castable resin (yellow) is pigmented for 20-50 micron layer thickness, so when used alongside the B9 Creator which has an optimum xy resolution of 30 microns, you know that the resin outperforms the printer. This is a better scenario where you use the Form 2 for example, which has a lazer spot size of 140 microns and use it alongside b9’s casting resin (or even their own brand of castable resin with resolution possibility of up to 25 microns), you will simply not be getting the full potential from the resin. you would see a visible stepping in the model which would not be as obvious when using the B9 Creator. Let's take another example.