Start with width and height
Width and Height drive the plate outline, the hole layout, and the generated data.
Parametric Mounting Plate Design
Stop redrawing plate geometry and recalculating hole spacing every time the dimensions change.
Change width or height and the plate outline, hole count, spacing, and output data update automatically. LogiDraft applies rule-driven geometry so the drawing and generated data stay in sync.
Change width and watch hole count and spacing recalculate instantly.
InputsWidth, Height
Width Clamp80 to 480
Height Clamp40 to 240
Hole LogicLookup + spacing calculation
Automatic hole layout from plate dimensions
This geometry is generated directly from the same logic used in the workspace.
- At 180 mm width: 6 holes with 32.8 mm spacing.
- At 380 mm width: 10 holes with 40.44 mm spacing.
Change width and the layout updates automatically.
Increasing width steps hole count from 6 to 10 and recalculates spacing automatically.
Change inputs in the workspace and this result updates automatically.
These changes are reflected directly in structured output data.
| Width (mm) | Height (mm) | Hole Count | Hole Spacing (mm) |
|---|---|---|---|
| 180 | 120 | 6 | 32.8 |
| 380 | 120 | 10 | 40.44 |
Geometry and data stay aligned because they are generated from the same logic.
Inputs and outputs
Width and Height resolve the plate geometry and the reported results together.
Inputs
- Width
- Height
Outputs
- Plate geometry
- Hole count
- Hole spacing
- Generated data
Rule-driven plate sizing
A lookup table maps width to hole count, and the spacing calculation is encoded directly in the model.
Clamp the design envelope
Width resolves between 80 and 480. Height resolves between 40 and 240 before geometry is drawn.
Select hole count from width
A width-based lookup table selects the hole count. At 180 mm width, the resolved hole count is 6.
Calculate hole spacing
Once width and hole count are resolved, spacing is calculated across the usable span automatically. At 180 mm width, spacing resolves to 32.8 mm.
Hole count lookup table
Hole count is not hard-coded into the geometry. The example reads a width-based lookup table and selects the appropriate quantity for the resolved width.
| Max width | Hole count |
|---|---|
| 160 and below | 4 |
| 240 and below | 6 |
| 320 and below | 8 |
| 400 and below | 10 |
| 480 and below | 12 |
Resolved spacing logic
After width is clamped, the usable span is the plate width minus 16 mm. Hole spacing is then calculated by dividing that span across the resolved hole count.
That means the automatic hole spacing always reflects the current geometry and the current hole quantity. The plate stays consistent without manual recalculation.
Outputs
The resolved plate produces usable engineering data that stays aligned with the geometry and can be exported directly.
Width, height, hole count, and hole spacing are available as generated data from the same evaluated model that draws the plate.
Exported data stays aligned with the visible result, so downstream schedules, validation, or reporting can use the same resolved values.
Outputs
| Sheet | MAIN |
|---|---|
| Definition | Mounting Plate |
| Height (mm) | 120 |
| Hole Count | 6 |
| Hole Spacing (mm) | 32.8 |
| Width (mm) | 180 |
Manual drafting versus LogiDraft
A mounting plate shows the difference between geometry-only drafting and a rule-driven system that keeps geometry and data aligned.
Manual redraws and manual recalculation
- Resize the plate and redraw the hole layout by hand.
- Recalculate spacing separately whenever the width changes.
- Keep output data in notes, spreadsheets, or downstream cleanup steps.
- Accept that the drawing and the data can drift apart.
Rules drive geometry and outputs together
- Width and Height resolve the plate geometry directly.
- Hole count and automatic hole spacing update immediately from the same logic.
- The same evaluated model exposes generated data alongside the drawing.
- Geometry and outputs stay aligned because they come from one evaluated model.
Use this example
How this works
Open the example and change inputs to see the system update
Open this and change one value - you'll immediately see how the system works.
Open this example and:
- Change width
- Watch hole count and spacing recalculate automatically
Related pages
Help
How to use values to control geometry.
Docs
How inputs drive geometry and outputs from one model.
Example
Another practical system driven by changing inputs.
Reference
Exact directive properties and commands.