CypCut nesting tutorial: the built-in nest step by step, and where it stops

The nest, step by step

1. Import clean geometry. CypCut assumes every contour to be cut is closed; on import it removes tiny graphics and duplicate lines, merges unclosed lines, smooths and sorts (§1.4.2). It tells outer contours from holes by how they sit inside each other: the outermost is an outer contour, the next one in is a hole, the next an outer contour again (§3.1.1). Check the customer's file before it reaches the machine with the DXF checker, and see exporting a DXF for CypCut for the layers.
2. Open Nest from the Home menu or the Nest menu (§3.14). A side bar on the left shows three lists: parts, plates and nested plates.
3. Parts library: right-click and choose “load parts”, or select parts on the drawing board, right-click and choose “add to parts lib”. The same menu imports standard parts, deletes parts and saves the parts that were not nested.
4. Plate library: add plates the same way. The list shows each plate and its quantity; a right-click deletes a plate or saves the list as a file.
5. Set the basic parameters and the Detail settings, then click Nest. For a part gap to start from, see part spacing.
6. Read the result in the Nest plate list, which shows every nested plate and the plates already processed.

The settings that matter

Arrays and the cut order

For one part in a large quantity, the Array tools are often quicker than the nest (§3.11): a rectangular array by rows and columns, a manual array dragged with a set row and column spacing, a circular array around a centre, and Full Fill, which copies the part over the whole plate at the preset plate size. The nest decides where parts go; the sort decides the order they are cut in (§3.15). With no special requirement the manual suggests grid sort. Step through the sequence preview (§3.15.1), move single parts with manual sort (§3.15.2), and group parts whose order must not change: a group keeps its sequence in every later sort, and the machine finishes it before it cuts anything else (§3.15.3). The co-edge example in the appendix (§6.1) arrays a part 3 × 2, merges the shared lines and sorts right to left — in the other direction, the manual warns, the parts shift for lack of holding force. A small part in another part's hole must be cut before that hole; see part-in-part nesting.

Where the built-in nest stops

• 50 part types: “The parts type limits is 50” (§3.14.1). The CypCutPro V7.0 and CypCutE 7.0 manuals say the same (§3.17.1).
• 20 plates at a time: CypCut “now only supports 20 plates nesting at one time”.
• Array only: the one nest strategy listed. The manual does not describe different parts interlocking true-shape; see true-shape vs rectangular nesting for what that costs on mixed jobs.
• No customer quote: the nesting report estimates a cost from the layer parameters, but there is no quote with your prices per part to send.
• It runs inside the controller software. The manual says files can be edited and parameters set in the office or on your own computer (§4); ask your dealer whether your licence covers a copy away from the machine.

CypCut's own nest costs nothing extra, is already on the machine, and has co-edge, bridges, micro-joints and Bochu's cutting techniques. A separate nester earns its place when jobs go past 50 part types or 20 plates, when parts of different shapes should interlock, or when the nest and the price should be done in the office while the machine cuts. Bochu's CypNest lifts the limits and writes nrp/nrp2 task files that CypCut V712.6 and later opens directly (§3.14.3). Zorocut nests true-shape, prices the job from the nest and exports one layered DXF per sheet that CypCut opens like any other. Both are compared on Zorocut vs CypCut nesting and Zorocut vs CypNest.