Basics: Hatching

Welcome to the Needham laser settings guide. This guide is designed to provide a basic overview of hatch settings for your laser machine.

Hatch is used for filling objects when engraving, rather than just marking an outline. In order to hatch an object, the object must be a closed shape. The laser will follow a series of parallel lines to 'fill in' the solid area in a way similar to when you shade a shape on paper with a pencil.

Here are the basics of using the Hatch function in N-Lase Designer.

Screenshot (108)

To hatch a closed shape, select the hatch tool by selecting the shape, then selecting the 'H' symbol on the toolbar.

Screenshot (107)Within the hatch dialog box, there are a number of options:

Mark Contour:
 whether to show and mark the current object’s contour or not.

mark contour 1

means when click ‘Mark Contour’, mark hatch line first then mark contour.

mark contour 2

means when click ‘Mark Contour’, mark contour first then mark hatch line.


Hatch 1 / Hatch 2 / Hatch 3: Users may have three independent hatch parameters to hatch the same object at the same time. Each set of hatch parameters can be appointed a Pen No. which stands for a set of marking parameters.

enables the current hatch parameters.

All Calc:
Calculate all the selected objects as a whole. This is an optimisation feature, in some cases this may increase the marking speed. It can take a long time to calculate large, complex objects. When not selected, the objects will be calculated separately.

For example: draw three rectangles, line distance of 1mm, angle of 0.

1. If you do not click ‘All Calc’, the system will mark in the order in the object list, marking the hatch line in the first rectangle then marking the hatch line in the second rectangle, and so on. For example:

do not click 'All Calc'


2. If you click ‘All Calc’, the laser will mark all of the hatch lines at the same time, marking all of the hatch lines that are on the same line. For example:

click 'All Calc'


Type of Hatch:

Select the symbol next to 'Mark Outline' to select the type of hatch:

Unidirection hatch

Unidirectional hatch:

The hatch lines will be marked from left to right.

Bidirectional hatch

Bidirectional hatch:

The hatch lines will be marked from left to right first, and then from right to left.

Ring-like hatch

Ring-like hatch:

Fills objects from the outside to the inside like a ring.

Optimization two-way hatch

Optimization two-way hatch:

Similar to a bidirectional hatch - the end of each line is connected.

Optimization Gong type hatch

Optimization Gong type hatch:

Similar with Gong, will jump in null place.

the angles between hatch lines and X-axis.

Line Distance:
 the space between two hatch lines.

Edge offset:
 the distance between hatch lines and the object’s outline.

Start Offset:
the distance between the first fill line and the border of the object.

End Offset:
 the distance between the last fill line and the border of the object.

Follow Edge One Time: draws the outline one time around the hatch lines after filling.

Average Distributes Line: select this feature to allow the software to automatically adjust the average distribution of the hatch lines.

Line Reduction: adjusts the length of the hatch line in relation to the outline.

Adds a ring hatch to the object being hatched.

Auto-Rotate Hatch:
The auto-rotate hatch will automatically mark another hatch line
at the angle set. For example, the angle is 0, the auto-rotate angle is 30, the first mark angle
is 0, the second is 30, the third is 60, and so on.

Undo Hatch: delete hatching.

Hatch one by one:
choose multi-objects and hatch them together.