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Questions tagged [eagle]

EAGLE is a low-cost PCB design software package.

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10
votes
2answers
3k views

Is it normal to have a rats-nest of VCC/GND traces under an IC?

I'm attempting to route a simple board, the first I've done in 15 years since I routed a 12V linear power supply in the equivalent of mspaint. This board consists mainly of an LPC2387, which is an ...
36
votes
1answer
45k views

Where is the Eagle component library for 0.1" breakaway headers?

I want to put some breakaway headers into my Eagle CAD file. By that, I mean these: Does Eagle come packaged with a library for these? If so, what is the part called, and which library is it in?
8
votes
3answers
8k views

Combining hand-routing and auto-routing in Eagle; selective ripup in an Eagle ULP

In Eagle I often prefer to route some wires myself (power, xtal, UBS, etc), and leave the rest to the autorouter. When I am not pleased with the result I route some more myself, and let the autorouter ...
4
votes
5answers
7k views

Board layout help: 64-output Mux! (for possible use in 8x8x8 LED Cube)

So just for practice I decided to design a 64-output mux in Eagle, I figured if its good it could be useful in the future. I did not use auto-router. Here is the PCB: (Click to zoom in) To the ...
2
votes
3answers
3k views

Eagle Schematic and Board layout design for simple opamp module questions

Hopefully I'm not doing anything illegal, I posted a very similar question a few days ago, but this one is different. Here is what I've been working on the past couple days, trying out different ...
37
votes
1answer
38k views

New eagle library: reuse standard package & symbol

I need to make few components in Eagle, which are all in standard packages, and I can see them in ref-packages.lbr. The problem is that when I am creating my library I don't see how I can reuse ...
3
votes
4answers
7k views

Eagle CAD: PDF scaling problem? (tone transfer method)

First of all, how do you export your layout to PDF in order to create the PCB using tone transfer method? In the past I created one small PCB by doing the following: print > PDF format (scale=1). No ...
2
votes
1answer
1k views

I need help with Eagle CAD how do you edit silk screen how to add copper to the empty spaces

Like the title describes, these are two things I need to know how to do in eagle. Any pointers? Thank you. P.S. if anyone knows a tricky way to get an image into the silk screen it would be ...
8
votes
6answers
6k views

Adding a small protoboard-like area to a PCB

I'm currently laying out a PCB in eagle for a circuit that will form the basis for some experimentation. Instead of adding a row of headers so that I can plug it into a breadboard, I figured I would ...
27
votes
2answers
11k views

Connectorless USB on a PCB

I would like to make a board which can be plugged directly into the USB port of a computer, instead of using a separate male "USB-A" connector. I have seen this system used for very small USB memory ...
14
votes
3answers
39k views

How to measure component distances in EAGLE PCB

How do I easily measure how far apart two objects are in EAGLE 5.11.0 Light? Is the easiest way to record the coordinates and subtract?
1
vote
3answers
195 views

Making Etchable PDFs in linux

Hey I am trying to make a etchable pdf for a project of mine. It is supposed to be a 2x9inch board. But I cannot find a good software to make this. Eagle's free version will not allow me to make this ...
6
votes
3answers
6k views

Vias on QFN centre pad in Eagle PCB

I'm using some QFN devices in a PCB I'm designing using the Eagle PCB software. The QFN packages have a centre pad that is grounded and intended to help with thermal dissipation. When creating the ...
4
votes
2answers
2k views

Weird Thermal Reliefs in Eagle PCB

The thermal reliefs of my ground polygon to one of the pads of my footprint are just simply weird! I dont know what causes it? It seems to me that the lines leading up from the polygon to the pads are ...
0
votes
3answers
5k views

Importing an asc PADs file into Eagle

I have a .asc PADS file that defines the footprint for a part I am using. Is there any way I can use this file with Eagle so that I don't have to make the package from scratch?
3
votes
1answer
4k views

How to tell size of Eagle library component?

I am working on my very first PCB design using Eagle. In my design, I will be using a 10W 10 Ohm power resistor. Since it isn't a "standard" size, I'm having trouble finding the component in Eagle. In ...
1
vote
1answer
824 views

Please convert Eagle Library

I've scoured the internet for an EAGLE library with the SN754410NE part. I found one, but it's for a version previous to 4.11 and I'm on a Mac and have no way to convert it 55.10. The original file is ...
8
votes
2answers
11k views

Rounded corners in Cadsoft Eagle

I am sending off a pcb for manufactering, but it would be nice to round off the corners for them to mill off. How can I make nice rounded corners? I have used the three point arc thing before but I ...
5
votes
1answer
9k views

How do I define a tented via-in-pad in Eagle?

How do I define a tented via-in-pad in a parts library in Eagle PCB? (Example of result here:) Once I define the large pad underneath the QFN, I seem to be able to turn the soldermask on and off. ...
20
votes
3answers
22k views

Design a veroboard/stripboard layout from an Eagle schematic

So I have just finished learning the basics of Eagle (Lite) and I really like it. As I don't have the full kit to start home PCB etching yet (something I am looking into now) I would like a tool that ...
3
votes
1answer
629 views

How do I connect a pin that is not included on the main symbol or any of the gates of an Eagle part?

In Eagle, I've dealt with a couple of parts that have pads that don't seem to be accessible from the schematic: HTSSOP packages with a thermal pad that should be connected to a ground pin; a battery ...
20
votes
7answers
27k views

Which PCB software has the best autorouter? [closed]

I know that lots of people out there feel that autoroute results are not useable. I find that the autorouter is a good way to get a good placement. I use eagle. I do a basic placement, autoroute ...
5
votes
3answers
2k views

Which would better suited for a CNC drilling machine: gerber or gcode?

I am planning to develop a CNC drilling machine for a college project. The idea is to export the hole coordinates and drill size directly from a .brd file on Eagle, which will later be read by an MCU ...
8
votes
2answers
2k views

How can I force drill holes in Eagle

I have some routing like this; I would like this pad/wire connection to print solid black with a small hole in the middle. After I etch with toner transfer, I'll need to see where to drill. I can ...
24
votes
8answers
12k views

Advice on going from rat's nest to routed PCB

Can anyone offer any useful strategies on going from a rat's nest to a routed PCB? (I'm using Eagle and aiming to make single/double sided PCBs at home) Drawing the schematic is fine, but when it ...
3
votes
2answers
2k views

Inductor for LM2575

Can anyone suggest a 330uH inductor and associated Eagle .lbr for use with an LM2575? I've been looking all day for this! Any suggestions would be appreciated.
4
votes
2answers
992 views

Tango to Eagle Schematic import

Does anyone know a way to get Tango schematics into Eagle? Even if it is a hard way (other than entering from scratch)... Of course, an easy way would be nice. Cheers, Marcus