Eight-Pocket Rectangular STL

I’m looking for a CAD specialist who can create a clean, watertight STL of a simple rectangular plate that holds eight identical recessed pockets arranged in two columns and four rows. The file must be optimised for 3D printing.

I will provide the exact overall dimensions and pocket size in millimetres. What I still need is your guidance on the most practical spacing so the part prints reliably on a standard FDM printer while keeping the layout visually balanced. Feel free to suggest minimum wall thicknesses or fillets if they improve strength and print quality.

Deliverables:
• Final STL ready to drop into Cura/PrusaSlicer with no mesh errors
• Quick dimensional drawing or screenshot confirming pocket layout and spacing
• Optional: native CAD file (STEP or Fusion 360) so I can make future tweaks

Accuracy is key—edges must be square and pockets uniform—yet the job itself is straightforward, so a fast turnaround is possible. If you’re comfortable designing printable parts, I’d love to work with you.