Desktop SLA (Form 2)
Pictured to the right is the NIST model printed from our very own Form 2 desktop SLA printer. It passed all specs for the NIST model EXCEPT for these features...
- Pin Extrusion - Pins must be >1 mm in diameter
- Hole Cut - Holes must be >1 mm in diameter
- Stepping - Stepping must be >.2 mm in height
Cosmetically it is also quite flawed for large models as you can see in the picture on the right. Each print has a base that is connected to the model when printed, and afterwards it must be manually clipped with pliers to remove it from its base. For larger flat builds this can cause a large amount of rough edges on flat surfaces that will need to be sanded down by our technicians, or by the customer (depending on what they prefer).
This print to the right is demonstrating the capabilities of the Form 2 printer to help further understand the limits of wall thickness and beam strength of the SLA machine.
- Wall Thickness - Smallest wall thickness is 0.03 inches
- Beam Strength - Smallest beam thickness is 0.1 inches (MUST BE CONNECT AT BOTH SIDES + ALSO VERY FLIMSY AND CAN BREAK DURING POST PROCESSING)
Here to the right we have a print demonstrating the accuracy of font size (in bold) that can be printed on the Form 2 printer here at the Digital Fabrication Lab.We reccommend a size 8 font be the smallest font size that our printers can print legibly for cuts and a font size of 6 for extrusions when printing on this machine.
Additional Form 2 Printer Capabilities
- 1:1 press fit works, but can break under thin wall conditions
- 1:1.1 press fit works better
- Can handle most overhangs and inner geometries due to removable support
- CANNOT REMOVE SUPPORT WITHIN MODEL ITSELF