Text-to-CAD design brief: a dimensioned plate you can inspect

A text-to-CAD design brief should identify geometry that can be checked: dimensions, coordinate conventions, operations and the expected output. “Make a mounting plate” leaves the system to guess the size, hole layout and intended manufacturing method. A bounded brief makes those choices visible before you accept a generated model.

The independent SKY-001 Studio supports boxes, Z-axis cylinders and straight polygon extrusions with add/cut operations and explicit part positions. This example stays inside that scope. It does not require arbitrary freeform generation, rotations, fillets or a constraint solver. Availability depends on the deployment's configured services; a written prompt does not prove that a build or export has succeeded.

Start with one local coordinate system

Use millimeters throughout. Put the plate's lower-left bottom corner at local [0, 0, 0]. Let X run along its 80 mm length, Y along its 50 mm width, and positive Z through its 6 mm thickness. Place the part at world [0, 0, 0] so the initial local and world coordinates agree.

For the Studio's supported primitives, a box origin is its minimum corner. A cylinder origin is its bottom center. Those meanings are different, so write them down. Operation origins are local to the part; moving the part changes its world placement without changing the hole layout in local coordinates.

A concrete brief to adapt

Create one CAD part called mounting-plate, units mm, part position [0,0,0]. Add a box named plate with minimum corner [0,0,0] and size [80,50,6]. Cut four Z-axis cylinders of radius 2.5 and height 8, starting at z = -1. Their bottom-center origins are [10,10,-1], [70,10,-1], [10,40,-1] and [70,40,-1]. Keep the outer edges square. Produce one connected solid. Request STEP and STL outputs for the completed build, and retain the editable design parameters. Check overall bounds 80 × 50 × 6 mm and four 5 mm through-holes at the stated centers.

The 8 mm cutting cylinders extend below and above the 6 mm plate. This expresses a through-cut without relying on coincident end faces. A 5 mm hole has radius 2.5 mm; confusing radius and diameter would double the opening. The hole centers are 10 mm from the nearest outside edges, not the hole walls. The nearest wall-to-edge material is therefore 7.5 mm in this nominal design.

These dimensions illustrate a workflow. They are not a recommended bracket design, a certified load-bearing part or a fit specification for a particular screw. Choose real clearances, material and thickness with the intended process and application in mind.

Separate operations from acceptance checks

The operation list tells the builder what to construct. Acceptance checks tell you what evidence to inspect. Start with the add operation, then apply four distinct cuts. Give each operation a stable identifier, so a later request can target one hole instead of saying “the one on the right.”

Check one solid, overall bounds and the intended openings in the completed geometry. Confirm the hole diameters and center coordinates in an appropriate CAD viewer. A parameter reading “2.5” is useful but does not by itself prove the final Boolean result is correct. The Studio reports explicit requirements and available build evidence; it does not establish that every sentence in a prompt was satisfied.

Save the accepted revision before making an edit. A clear revision request is “Change the plate thickness from 6 to 8 mm; extend every through-cut to span the new thickness; retain the four hole centers and diameters.” Simply changing the box thickness could leave the old cuts ending at the new top face. Review the resulting solid and exports again rather than relying on a text summary.

Specify the handoff and its limits

Use STEP for a CAD exchange copy and STL for a mesh-based printing workflow when the receiving tool supports them. Neither format guarantees your original editable feature history. Keep the native parameters and revision alongside the exchange files. Follow the STEP vs STL export checklist for units, tessellation and receiving-tool checks.

For print handoffs, 3MF vs STL separates model data from slicer project settings. The text-to-CAD workflow explains the independent Studio's supported outputs and includes native example downloads.

After slicing a printing mesh, use the slicer's grams and time in the printing cost calculator and the worked cost breakdown. A building concept uses different measurements; the floor area calculator handles rectangular areas, not plate geometry or construction-code review.

Research and this tool are different

The root SKY-001 CAD research guide discusses the separately developed Skyfall research model. This site's independently operated Studio is not that model and does not provide its API or weights. Do not interpret research demonstrations as features available in this workspace.

For external format context, consult ISO's STEP AP242 description and the Library of Congress STL format notes. The workflow above is an illustrative design specification, not a report of independent physical testing.