Contents
- 1 How are vias made in an EAGLE PCB?
- 2 How are the layers organized in Autodesk Eagle?
- 3 Can a through hole reach all the layers?
- 4 How big of a trace do you need for vias?
- 5 Can you get eagle to automatically create thermals on pads?
- 6 What does Eagle’s board designer do for PCB?
- 7 Where do I find Autorouter in Autodesk Eagle?
- 8 What do you need to know about Autodesk Eagle?
- 9 What does Eagle do when there are two overlapping objects?
How are vias made in an EAGLE PCB?
EAGLE allows to configure between which copper layers vias can be made in the LAYERS tab of the design rule window: Here, two cores (green) are glued together by a prepeg (grey), and vias are possible through each core as well as the whole PCB. This is defined by the string ( (1*2)+ (15*16)) in the setup.
How are the layers organized in Autodesk Eagle?
If you’re planning to design a multilayer PCB then how your top/bottom and middle layers are organized will be slightly different than you’d expect. For example, creating a 4 layer board won’t just use layers 1, 2, 3, and 4. Rather, EAGLE will use Layer 1 (top), 2, 15, and 16 (bottom) to bring it all together.
Can a through hole reach all the layers?
The default through hole via, can reach all the layers. EAGLE will automatically isolate the via from any layers it is not supposed to connect to. substantially. So unless you have a super tight layout I would discourage their use. This content has been marked as final.
Why is layer 1516 an invalid layer in Eagle?
Eagle complains that layer 1516 is an invalid layer. Need some sort of separator between each number. That isn’t really what I initially was looking for, but as @JorgeGarcia said, Eagle will automatically connect the layers, so take that as an answer. Thanks to all for their input & patience.
Why are vias under pads a bad idea?
Assuming the ground plane is on the bottom, the pad connected to ground will actually get hotter than the other pads more quickly, and the situation will be reversed. Finally, this situation will make rework an absolute nightmare — one terminal of the device will be sinking a lot more heat than the other.
How big of a trace do you need for vias?
A tenth of an inch or two with a trace-width of 12-16 mils should do for most chips. Chips handling larger currents will require larger traces, or multiple small traces — you may end up having to trick your software into doing this by running multiple traces before you place the vias.
Can you get eagle to automatically create thermals on pads?
Most EDA programs (including Eagle, shown here) will automatically create thermals on pads connected to supply planes, unless you specify otherwise. AFAIK, there is no way to get Eagle to automatically create thermals on vias. Note here that I’m not talking about ‘thermal vias ‘, which are something completely different.
What does Eagle’s board designer do for PCB?
EAGLE’s board designer is where a good portion of the magic happens. It’s here where the dimensions of the board come together, parts are arranged, and connected by copper traces. In the board editor, the conceptual, idealized schematic you’ve designed becomes a precisely dimensioned and routed PCB.
How big of a grid do I need for an eagle board?
A 0.05″ grid, and 0.005″ alternate grid is a good size for this kind of board. EAGLE forces your parts, traces, and other objects to “snap” to the grid defined in the Size box.
How does Eagle work in SparkFun board layout?
EAGLE forces your parts, traces, and other objects to “snap” to the grid defined in the Size box. If you need finer control, hold down ALT on your keyboard to access the alternate grid, which is defined in the Alt box.
Where do I find Autorouter in Autodesk Eagle?
Open your PCB layout (.brd) file from your Autodesk EAGLE Control Panel. Select the Autorouter tool on the left-hand side of your interface to open the Autorouter Main Setup dialog. You’re in complete control of the autorouter setup with settings for effort, CPU threads, and routing directions.
What do you need to know about Autodesk Eagle?
eagle.scr is the place for settings that should be set initally for your layouts, schematics and libraries when beginning a new drawing.eagle.epf saves all the settings that have been made during work. For example, a special drill menu content because in this project (board) you have to use certain drill diameters.
What does Eagle do when there are two overlapping objects?
In cases like that, EAGLE will pick one of the two overlapping objects, and ask if that’s the one you want. If it is, you have to left-click again to confirm.