As someone who uses the Form1 for his job , I always had an eye on the precision of the prints.
To control how dimensionally stable the prints are, I made a little test with some results, that have been pretty surprising.
I always had in mind that the prints are a little too big or too small, so i decided to print Cubes in the size of 10mm each side and place them all over the build plate. (As you can see on the attached wuerfel_form_test…form file , wuerfel = cube )
IMG_8065 nummern.jpg <-- how i printed the cubes
After the print i took my micrometer and tested each side of every single cube. ( Pre-work on the parts : 2 min. washing in Isopropanol 95% , 10 min. dive in fresh Isop. , then 30 min on fresh air to let the Alcohol fly away )
Surprising was the fact that the cubes in the middle of the plate , had the biggest “artifacts” on the surface and they were the ones with the most unregular furface. As you can see on the pictures with the** free space** text, the cubes 5,6,7 have been skewed but only from one side. (left down facing front)
The plates on which the supports stand had different heights as well. mainly the cubes on the opposite side of the hinge had the thinnest tables. 1 + 2
On Image number 8108 you can see a comparsion of the different cubes. 3= near to the hinge, 7 =middle , 1= far far away
All settings have been on Standard 0,1 mm layer thickness
After the Light curing process in our dental UV machine, the results have been pretty similar to the ones before the curing (most + ~0,005)
Maybe some of you can print the cubes on their own machines to see if i am not the only one with these results.
Hope this could help anyone. I will print my things from now on more on the hinge side of the Form 1.
Greetings from Germany (this explains my english skills ;-) )