Eagle Schematic to PCB?

codeman · Post by **codeman** » Tue Jul 18, 2006 8:51 am

I've gotten those warnings before and i could never figure out what the problem was. It didnt affect the board though, so go ahead and make a PCB! One pointer though, when you switch to board you'll see a bunch of components and yellow lines. The lines tell you how to connect everything, but make sure when you do connect it you use the button called "route" rather than just the wire.

vb_master · Post by **vb_master** » Tue Jul 18, 2006 9:27 am

Here is the board, think I can do anything better on it?

codeman · Post by **codeman** » Tue Jul 18, 2006 9:46 am

Well one suggestion i would make is to get rid of all those 90 degree angles. For such a small board it should be fine, but i know that some board manufacturers screw up with 90 degree angles, because the etching stuff makes a little puddle there and eats away too much copper. And besides, i think 45 degree angles look better anyway, haha

vb_master · Post by **vb_master** » Tue Jul 18, 2006 10:12 am

codeman wrote:i think 45 degree angles look better anyway, haha

How do I go about that?

Also, how would I put my name in silkscreen?

codeman · Post by **codeman** » Tue Jul 18, 2006 10:20 am

when you start to put down a wire, you can change the way the program routes it by either right cicking on your mouse or by selecting one of the buttons that appear at the top. If you want to put your name and information on it somewhere then click on the "T" to add text, and after you type it and hit OK change which layer its on with the drop down menu at the top. Change it to the tNames layer

vb_master · Post by **vb_master** » Tue Jul 18, 2006 10:25 am

codeman wrote:when you start to put down a wire, you can change the way the program routes it by either right cicking on your mouse or by selecting one of the buttons that appear at the top. If you want to put your name and information on it somewhere then click on the "T" to add text, and after you type it and hit OK change which layer its on with the drop down menu at the top. Change it to the tNames layer

Can I just change all the routes all at once?

codeman · Post by **codeman** » Tue Jul 18, 2006 10:30 am

maybe, but i have no idea how, sorry. When you do delete a trace you've already put down though, make sure you use the "ripup" command rather than delete.

timmeh87 · Post by **timmeh87** » Tue Jul 18, 2006 11:28 am

how are you making the board?

- if you are making it yourself, make the traces as thick as possible (like .032 or higher)
- if the max3232 is going to be in a socket, you cannot connect traces to a socket from the top layer. (if it is just being soldered directly into the board then dont worry about it)
- there is no power source? (from the psp?)
- in general bottom traces are better than top traces for this particular board, there are a lot of them that can (and IMO should) be switched to the bottom later.
- there are some places where traces get VERY close together. its best to avoid that.

also, when you make schematics in the future, its a lot neater looking to use "supply" symbols rather than directly connecting together all the power and ground connections. just search the part library for "supply".

vb_master · Post by **vb_master** » Tue Jul 18, 2006 11:31 am

how are you making the board? Spark Fun

- if you are making it yourself, make the traces as thick as possible (like .032 or higher) I will do that on my first version (which I will make myself)
- if the max3232 is going to be in a socket, you cannot connect traces to a socket from the top layer. (if it is just being soldered directly into the board then dont worry about it). It's directly to the board.
- there is no power source? (from the psp?) The powersource is from the computer.
- in general bottom traces are better than top traces for this particular board, there are a lot of them that can (and IMO should) be switched to the bottom later. Well I don't want to have any jumpers.
- there are some places where traces get VERY close together. its best to avoid that. Yeah, but I am tight on space, I want the $1.25 deal.

codeman · Post by **codeman** » Tue Jul 18, 2006 11:59 am

timmeh87 wrote: - there are some places where traces get VERY close together. its best to avoid that.

...where are the traces close together?

This is one that i just finished this afternoon and i've done some similar to this with traces close together. It's the best way to get a dense layout

vb_master · Post by **vb_master** » Tue Jul 18, 2006 12:07 pm

Do I crop the board, or is it always like that?

codeman · Post by **codeman** » Tue Jul 18, 2006 12:13 pm

is it always like what?

vb_master · Post by **vb_master** » Tue Jul 18, 2006 12:29 pm

I totally redid the wireing, I noticed a really stupid mistake. Can someone check it against the schematic for me so I can get a second oppinion? I had to add a via, so uh I hope I did it right.

The white lines surrounding the board, is that important or when they make the board do they make it as small as possible?

codeman · Post by **codeman** » Tue Jul 18, 2006 12:39 pm

vb_master wrote: The white lines surrounding the board, is that important or when they make the board do they make it as small as possible?

yes...the white lines are in the dimension layer. You need to make the shape you want your board to be using that layer.

vb_master · Post by **vb_master** » Tue Jul 18, 2006 1:26 pm

Ok, I made it as small as possible.

Anyone want to check it against the schematic to see if everything is right? It looks right to me.