Anyone know eagle?

airy52 · Jul 11, 2008

I made a pcb and laid it out pretty well in eagle. Pics below. Would anyone consider doing some of this for me, I cannot make the traces bigger, or else I run into clearance problems with my small tps chip. I like how woop and some people do the whole board copper and just etch out little pieces. Plus these traces are too small for 400 ma current IMO. I also need to space the traces farther from the pads. Will someone help me, do it for me, or teach me? PM me and I'll share the files.

toked323 · Jul 11, 2008

Airy if i may suggest, Use express pcb its easier, eagle, if you really want to use it google eagle cad tutorials, Its hard at first but then you get it.

woop · Jul 11, 2008

to make more copper area, i just go over the traces using the copper area tool, which draws rectangles.
you will want as much copper area connected to the ground of the TPS, as its heatsink.
to make the traces bigger, when you click the trace tool, at the top there is a drop down box with different widths. you can make some traces larger without affecting the ones to the TPS
eagle is hard to use and its really annoying sometimes, because there are small things about it which don't really make sense. But once your used to it its good, better than any other program i can find which does the same thing

airy52 · Jul 11, 2008

toked, i used express pcb for about 2 days. eagle is much much better. if you are less experience with computers though express pcb is probably for you. eagle is harder and has its problems, but the auto route feature and mix of complexity and simplicity are really nice. This board would have been very hard without autoroute. Makes it much easier to move parts around and around and around to make it perfect.

Thanks woop I'll try that.

airy52 · Jul 11, 2008

Anyone see any improvements i could make before i go and print and etch this?

Bionic-Badger · Jul 11, 2008

Have you gone through Sparkfun's tutorial? You can manually set the trace sizes and all that good stuff and then autoroute. More tricks. For your problem, one thing to try is to make a special part that has the landing pattern pre-built for use with larger traces. Kind of like a break-out board.

toked323 · Jul 11, 2008

Yea I knowairy eagle is better, express pcb is easier for the novice, I use them both but i prefer expresspcb.

An example of a express pcb circuit for the tsp61200 attached.
Its made with the opamp, i modeled it after woops board

airy52 · Jul 11, 2008

yes i read those threads. I have a much different schematic. sorry.

woop · Jul 11, 2008

airy52 said:
yes i read those threads. I have a much different schematic. sorry.

yours looks pretty much the same, but with an extra resistor and pot.
did you use the square tool in that last layout to make diagonal traces?
not the way to do it

try using the polygon tool. to make it fill in you have to link the polygon to another signal by changing the same to make it match.

airy52 · Jul 11, 2008

I couldnt get it to work. it only made dashed lines. you seem to have tried to explain how to do it but i dont understand. how exactly do i use the polygon tool correctly... Thanks woop!

toked323 · Jul 11, 2008

Oh Airy, forgot to tell you, preheat your
copper board with your iron before the transfer and it will come out perfect.

woop · Jul 12, 2008

airy52 said:
I couldnt get it to work. it only made dashed lines. you seem to have tried to explain how to do it but i dont understand. how exactly do i use the polygon tool correctly... Thanks woop!

it sounds like you almost have it if its filling with hatched. there are two buttons at the top when you use the polygon tool, one is a hatched polygon, the other is a solid polygon. just click the solid one before you use it

J_Dogg · Jul 17, 2008

airy52,
I used Pad2Pad. It has the auto route. I have Eagle and Express, and I like the Pad2Pad the best.
You can set the trace size and draw your own if you need a heat sink type pad.
I like Eagle, but its notto user friendly when youarea building a board and want to kick it out quick.... Also
Pad2Pad is a free d/l
J

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