Wrap-around Templates (PDF)
Wrap-around templates print a pipework template at full size (1:1) for the fitter to cut out, wrap round the pipe and mark the cut along: a branch's saddle, a mitre's or a lobster-back segment's cut, a lateral's. It is a tiled print - on as many sheets of A4, A3, Letter, Legal or Tabloid as the template takes, with overlaps, alignment crosses, page labels and a cover page with a test square - with each template marked for wrapping. Make it with File › Export › Export…, choosing Wrap-around templates (PDF); it is offered first for pipework and HVAC drawings.
What it marks
A template is found as the Pipe Saddle and Mitre Segment tools and the library's pipework templates draw it: its two ends and its three quarter lines, five parallel lines a quarter of the pipe's girth apart. Each one found is marked with:
- The angles round the pipe: 0°, 90°, 180°, 270° and 360° at its ends and quarter lines, and CL under the quarter lines.
- Quadrant ticks past its top and bottom edges at each of them, and the centre lines: the quarter lines carried on as chain lines, to line up with the centre lines scribed on the pipe.
- An overlap strip beyond its 360° end (15 mm), to overlap and tape the template round the pipe: the 0° and 360° lines meet.
- Its girth and the outside diameter it wraps (Girth 189.4 mm: wraps a pipe 60.3 mm outside diameter): measure the print to check it is at 100%.
The marks are on a PDF layer of their own, Wrap marks. A drawing with no template found is printed as it is, and that is said.
Options
| Option | Does |
|---|---|
| Angles round the pipe | The angles at the ends and quarter lines. |
| Centre lines | The quarter lines carried past the edges as chain lines. |
| Overlap strip | How wide the strip beyond the closing end is, in millimetres; 0: none. |
| Paper size, Orientation, Margin, Overlap, Cover page … | As for the tiled print. |
The SaaS API writes it too (POST /export/wraptemplatepdf), with the tiled print's tilePaper,
tileOrientation and tileOverlap options.
Using it
- Print it at actual size (100%, not fit to page), and measure the test square and the girth note's line.
- Trim and tape the pages together by their crosses, as for the tiled print.
- Cut the template out along its cutting line and its ends, leaving the overlap strip on.
- Scribe the pipe's centre lines (top, sides, bottom). Wrap the template round the pipe, its 0° and 90° lines on them, the 360° line meeting 0° over the strip; tape it, and mark along the cutting line.
The template is drawn on the pipe's outside diameter: wrapped over the pipe, the paper's thickness doesn't matter.
See also: Pipework, Tiled print, Formats.