Custom parts
Keep profiles closed, features supported, and fit allowances tied to the material and thickness.
Clean geometry first
Use one closed outer contour per part and closed inner contours for holes and cutouts. Delete overlapping lines, stray points, hatching, dimensions, borders, and unused construction geometry. Duplicate entities can create repeated cuts and ambiguity. A full drawing sheet is not a clean cut file.
Protect narrow features
Leave enough material between adjacent slots and around holes. Very fine features can overheat or break during handling. What is practical depends on thickness and material, so avoid treating a single minimum feature size as universal. Robust geometry is particularly important in MDF and plywood.
Design retained islands deliberately
The middle of an O or a closed internal shape will become a loose piece if its perimeter is cut through. Add stencil bridges to retain it, or use an engraving approach when appropriate. Distinguish a through-cut shape from a surface mark before creating the file.
Validate scale and fit
Export at 1:1 scale and confirm units in the quote viewer. Check one known overall dimension. Use material-specific clearance in joints and mounting holes. The 24 × 40 inch bed is an upper layout boundary; stock selection and margins may reduce the usable part area.