Elliptical Spear-Top Fence Run | Fabrication Drawings
Multi-bay palisade fence run whose vertical spear tips trace a half-ellipse arc across every bay -- tallest in the middle (convex) or dished (concave) -- on a straight top rail, matching the elliptical spear-top gates for a continuous run. Level ground. Each bay repeats the identical arch; a dedicated Spear Heights page (bay 0 only) lists every overhang plus a foot-to-tip cut-list.
Configure Elliptical Spear-Top Fence Run dimensions and download professional A4 PDF fabrication drawings with orthographic views and dimension lines. No CAD software needed. Sub-millimetre precision from a true 3D solid model.
Key facts
Specifications
| Parameter | Range |
|---|---|
| Total Run Length | 1,200 mm to 30,000 mm |
| Fence Height | 300 mm to 3,000 mm |
| Gap Below Fence | 0 mm to 300 mm |
| Post Spacing | 600 mm to 3,600 mm |
| Post Material | Steel (galvanised), Aluminium, Stainless steel (304/316) |
| Post Attachment | Concrete into Ground, Bolted to Slab, Footplate |
| Post Concrete Depth | 25 mm to 3,000 mm |
| Footplate Position | Toe In, Toe Out, Centre, Top Left, Top Centre, Top Right |
| Footplate Width | 50 mm to 500 mm |
| Footplate Depth | 50 mm to 500 mm |
| Footplate Thickness | 6 mm to 25 mm |
| Spear Distribution | Fixed Gap, Number of Spears |
| Spear Spacing | 0 mm to 500 mm |
| Spear Offset from Edge | 0 mm to 2,000 mm |
| Spear Top Treatment | Through Top Rail (protrudes above), Flush with Top Rail |
| Spear Edge Overhang | 0 mm to 500 mm |
| Spear Bottom Treatment | Through Bottom Rail (protrudes below), Flush with Bottom Rail, Cut Into Bottom Rail (sits on top) |
| Spear Bottom Protrusion | 0 mm to 500 mm |
| Spear Mounting | Face-Fixed (front of frame), Pierce Frame (centred through rails) |
| Tip Style | Crimped Pyramid, Cast Arrowhead, Pressed Point |
| Tip Height | 0 mm to 300 mm |
| Arrowhead Base Width | 12 mm to 100 mm |
| Arrowhead Base Depth | 12 mm to 100 mm |
| Arrowhead Collar Height | 0 mm to 50 mm |
| Arrowhead Collar Overhang | 0 mm to 20 mm |
| Pressed Point Width | 12 mm to 120 mm |
| Pressed Point Thickness | 4 mm to 60 mm |
| Pressed Point Shoulder | 0 mm to 100 mm |
| Arc Height (Centre Rise) | 0 mm to 600 mm |
| Arc Direction | Convex (tallest in the middle), Concave (dished, tallest at the edges) |
| Minimum Overhang | 0 mm to 500 mm |
| Arc Reference | Extends above posts (edges at clear height, arc rises above), Contained within clear height (arc peak at clear height) |
Frequently Asked Questions
What do I get in the drawing pack?
Each drawing pack is an A4 PDF with orthographic views (front elevation, side elevation, top view, and isometric), full dimension lines, extension lines, and a professional title block. You also get a live 3D preview in the browser and optional STEP file export for CAD software.
Can I use this drawing for fabrication?
Yes. Dimensions are computed to sub-millimetre precision from a true 3D solid model, not approximated from a template. Print the PDF at actual size, hand it to your fabricator, and build from it. Change any input and the entire drawing regenerates in about 60 seconds.
How long does it take to generate a Elliptical Spear-Top Fence Run drawing?
Around 60 seconds end-to-end. Geometry computation runs server-side in a CadQuery process with a 30-second per-request timeout; PDF rendering and download account for the rest. If you change a dimension, regeneration takes the same ~60 seconds — there is no manual redrafting step.
Can I save and reload my dimensions for the Elliptical Spear-Top Fence Run?
Yes. The free Explorer tier keeps 1 saved drawing, so you always have somewhere to land between visits. Fabricator saves every drawing you make and reloads the configurator in one click, so you can revise a quote, regenerate a clean PDF, or branch a design for a similar customer without re-typing dimensions.
References & technology
Category: Fencing. Tags: fence-run, fencing, spear, arched, elliptical, palisade, fabrication. Geometry built with CadQuery on the OCCT (OpenCascade Technology) kernel — the same geometry foundation used in FreeCAD and a number of commercial CAD packages. Drawings are orthographic projections of the computed 3D solid; no view is sketched or scaled from a template.
Related terminology in the CAD60 fabrication glossary: see orthographic view, dimension line, title block, RHS, and aluminium.
