eagle pcb snap
bunalmis said:
Hello SyNTaXer,
Did you forget my question?
Can you said to me Polygon command parameters ?
How is works?
My second question, I need negative gerber file.
How can i find negative gerber file from the gerber file.
not forgotten bunalmis :
so lets start.
the polygon command in eagle is used to draw a copper plane on pcb.
that this command works fine you had to parametrize it.
i start with width: width in this case means first the outline of the polygone and secound the connection to each device where the signal should go.
a device in polygone command is connected from 4 sides, if it is possible.
solid and hatch:
if you want pure copper an pcb use solid. hatch makes crosshairs on pcb.
thermals on/off:
thermals on is used to solder with a slight themperature to do not destroy the soldered device. in thermals on mode eagle make 4 connection of a part from 4 sides, like the icon in eagle.
thermals off is used when you have big current on a device and need the whole track with. but its often hard so solder, themperature must go still higher.
orphans on/off:
if you draw a polygon and this polygone is crossed with a wire the polygon make a isolating clerance between wire and polygon.
with orphans on the polygon is also drawn behind the wire because there is'nt any connection between these 2 polygons.
with orphans off the polygon is only drawn where it could be connected physicaly.
isolate is the distance between signals.
spacing it the distance between lines when use hatch
last one is rank, use this to give each polygone a number of its importance. where rank 1 is most importaint and rank 6 least importaint.
if a rank 1 polygone cross a rank 6 polygone, the rank 6 polygone is reduced that rank 1 polygone fits. try this and you will see easy what i mean.
all you have to to is now to play around with this command.
put in some devices and draw a polygon from one part to another like the signal is going. rename the polygon with command "name" like the signals name you want to connect. type in "ratsnest" and see what has been done. so you could easy route a pcb in eagle and send it to a cnc to make isolate milling. the pcb its very quicklier ready if the cnc must mill out all the not used copper. but only to prefer for easy boards.
thy this, and if there are any questions, you know what do have to do ;-)
(ask me)
Hope that i could help you and others.
PS : sorry for my bad english, it not my basic language
bye SyNTaXer