![]() This includes the most cost-effective DRC values from our PCB services. You can also download the free EAGLE DRU design rule file: Eurocircuits-EAGLE_dru_18-09-17.zip. They can give you advice on the optimum values for manufacturing all types of PCB. If you are uncertain what values to use, contact our engineers at Eurocircuits either by email ( or by online CHAT (click on green “Contact support” button). Decide the number of layers your board will probably have and select minimum pad and track sizes, minimum clearance values, minimum drill diameters (for example for vias or micro-vias) and so on. You must then compare board and schematic using the Electronic Rule Check (see Article 2: “Create a project and start drawing the schematic”) and correct the differences manually.īefore you start designing your layout, it’s important to set the Design Rules. ![]() If any differences do occur between board and schematic, Back&Forward Annotation stops working. ![]() If you close one of the windows by mistake EAGLE will warn you with a clear message in the Editor window. But please remember! For Back&Forward Annotation to work you must have Schematic and Layout both open together all the time. Or connect two pins with a net – you will immediately see the corresponding airwire in the Layout. This function transfers each action executed in the Schematic Editor automatically into the Layout and vice versa: Let’s say you add a new component in the Schematic – it will automatically appear in the Layout Editor. The components are already connected with so-called “airwires”, the point to point connections that result from the nets you have drawn in the schematic.īefore you start to arrange the components and create the layout, here is some preliminary advice.įrom this stage onwards EAGLE performs Back&Forward Annotation. Just click on the BOARD command in the Action toolbar of the schematic editor.ĮAGLE opens the Layout Editor window and shows the components randomly arranged on the left of a sample board contour. (Ctrl-U), or right-on a grouped object and select Ungroup.Once you have finished your schematic design, it’s easy to create your layout. To Ungroup, click on the group and select Ungroup from the Layout menu. ![]() Grouping can also be achieved by right-clicking any of the selected objects and choosing Group. Once multiple items are selected, use the Group command in the Object menu (Ctrl-G) to unify the selected objects. To create a group, either use the arrow tool to select multiple items with a drag, or use the arrow tool in conjunction with the shift key to create a multiple selection with successive clicking. This converts all of the individual graphs, lines, boxes and text into a single complex item that is more reusable and meaningful in future experiments. Once you have elements of your layout positioned correctly, it may be desirable to Group the elements. Horizontal Spacing will horizontally space all selected objects equally. Horizontal Centers will find a horizontal midpoint between all selected objects and align all selected objects to that point. Rights will align all selected items to the right edge of the rightmost object selected. Lefts will align all selected items to the left edge of the leftmost object selected. Vertical Spacing will vertically space all selected objects equally. Vertical Centers will find a vertical midpoint between all selected objects and align all selected objects to Top will align all selected items to the top edge of the uppermost object selected.īottom will align all selected items to the bottom edge of the bottommost object selected. Here you can choose exactly how to align and/or distribute the objects by clicking on one of the alignment icons (for example, Top means the top of every object is at exactly the same level). Choosing Arrange from the menu, FlowJo will display a list of alignment features. Allowing FlowJo to align your layout objects saves time and ensures accurate distribution and alignment. When you have more than one object selected in the Layout Editor, you can align them relative to each other.
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