Lite3DP S1 Build Platform With steel ball and hole

thingiverse

## Trigger point: Actually most problem was solved by previous version, this is a experiment on whether improvement can be made. Some peers suggest me to add holes to the build plate to reduce drag, so I give it a try. ## Design consideration: I make it by referring to some existing design: https://www.youtube.com/watch?v=lAWP5BkCLSs My observation think problems would generated if we simply add holes: (yes, man always make our own problems) 1. Resin would accumulate in the holes if they are too deep and would not come out. 2. Resin with high viscosity would not flow if the holes are too small. 3. To resolve problem 1, I need to make the build plate as thin as possible (1mm thick only, R4 version change to 0.5mm). But it make the plate blend easily. 4. To resolve problem 2, I need to increase the size of holes to as least 2mm(R4 version changed to 3MM) in diameter. But it decrease the surface area for adhesion. 5. To resolve problem 3, I re-enforce the plate diagonally. But it generate a problem that the enforcement session would trap resin. 6. To resolve problem 4, I leave a cross area in the center that would not drill hole. 7. To resolve problem 5, I add a cut in the center to allow resin flow to other side. ------------------------------------------------------ As-is 20220205: Not tested and use at your own risk. As-is 20220205 end of day: Tested R3, confirm the print does not stick to the platform and the holes are too small for resin to flow. Made R4. Not tested yet.