Question: I printed a small block in emerald resin with 925 type on the bottom of a block snapped to the floor. When printed the type on the bottom of the block does not appear and what was a 3mm thick STL prints as 2.6mm thick..why? I know I can use supports etc.
Problem: How can I get the type to appear with the bottom of the block sitting on the floor?
Is this not possible with the B9 v1.2?
In the STL the number 925 was repeated in 3 pt sizes 5pt, 6pt, 7pt. and 4 different depths 1mm, 1.5mm and 2.0mm deep in a 3mm thick block.
I added the simple STL if someone can assist with a solution.
I'd guess that the base layers having a higher exposure time over normal layers are over-curing enough that it will wipe out a small 5 point font (which is less than 2 mm tall) just as much as a 7 point font (2.5 mm).
You can't print detail on the layers that need to adhere to the build plate with any bottom-up SLA/DLP printer. Maybe it can be done with a top down printer?
Actually, these printers are known for getting excellent detail when printing flat on the platform. If the detail is not there, then there is something wrong with the printed. Maybe Mike can jump in and let us know.
I tried lowering the MSM to 0.09 from the default of 1.0 and the result was slightly less faint. Then lowered to 0.8 and it went back to the faint result from the default 1.0.
The B9 West Coast seller said: "The reason that 0.4mm is missing from the model is the software will push the model into the build table to make sure the print sticks to the build table. We recommend a foundation layer to account for the lost area which at default is 0.5mm."
Just ordered a SuperCarver mini engraving laser for $75 USD to add type/logos to the back of flat back printed models.