One time PCB needed

[Dave, I can't do that]

Hi,

I am new to tis group but I have built a lot of kits over the years so
I am not all that new to soldering.

I have a small project with a 555 and about 10 other parts. It is a
very basic 5v, 5KHz PWM circuit. I have downloaded Eagle Lite but the
learning curve is too steep for something I probably will never use
again.

Is there anyone here who could make some changes to a schematic and
then layout a board for Toner transfer and etching. I have an
extensive hobby metalworking machine shop at home and can offer
machining for a prototype in return.

I have the original schematic and the list of changes needed.

Thanks in advance.

Dave

 

[[email protected]]

Hi,

I am new to tis group but I have built a lot of kits over the years so
I am not all that new to soldering.

I have a small project with a 555 and about 10 other parts. It is a
very basic 5v, 5KHz PWM circuit. I have downloaded Eagle Lite but the
learning curve is too steep for something I probably will never use
again.

Is there anyone here who could make some changes to a schematic and
then layout a board for Toner transfer and etching. I have an
extensive hobby metalworking machine shop at home and can offer
machining for a prototype in return.

I have the original schematic and the list of changes needed.

Thanks in advance.

Dave

Go over to sci.electronics.design there is a thread going on about
'Affordable PCB Layout Software' there is also a Yahoo group devoted
to PCB making.

regards,
al

 

[Phil Allison]

"Dave, I can't do that"

I am new to tis group but I have built a lot of kits over the years so
I am not all that new to soldering.

I have a small project with a 555 and about 10 other parts. It is a
very basic 5v, 5KHz PWM circuit. I have downloaded Eagle Lite but the
learning curve is too steep for something I probably will never use
again.

Is there anyone here who could make some changes to a schematic and
then layout a board for Toner transfer and etching.

** Have you never heard of Veroboard ??

http://en.wikipedia.org/wiki/Stripboard

Take me about 15 minutes to have that circuit up and working.



...... Phil

 

[Jasen Betts]

I am new to tis group but I have built a lot of kits over the years so
I am not all that new to soldering.

I have a small project with a 555 and about 10 other parts. It is a
very basic 5v, 5KHz PWM circuit. I have downloaded Eagle Lite but the
learning curve is too steep for something I probably will never use
again.

Is there anyone here who could make some changes to a schematic and
then layout a board for Toner transfer and etching. I have an
extensive hobby metalworking machine shop at home and can offer
machining for a prototype in return.

I have the original schematic and the list of changes needed.

if you only want one, and only have about 30 endpoints why not
use a permanent marker on the board and then etch, or as Phil
suggests, just use stripboard.

Bye.
Jasen

 

[Rich Webb]

if you only want one, and only have about 30 endpoints why not
use a permanent marker on the board and then etch, or as Phil
suggests, just use stripboard.

There's also a free (as in beer, not FOSS) stripboard layout editor
available at http://www.veecad.com. While it may seem a little silly do
a layout on a PC for a small, one-off project it is awfully nice to be
able to decide that *this* works better over *there* before you've
started soldering. The user interface is easy to work with so don't
expect a terribly tall learning curve.

While it is possible to use Veecad without a netlist, it is able to read
several common styles. See http://www.veecad.com/editors.html

If you already have a paper schematic then generating a new one in a
schematic capture app to build a netlist shouldn't take long. Kicad
(free as in FOSS) can produce netlists in a format that Veecad can use.
http://www.lis.inpg.fr/realise_au_lis/kicad/

Stripboard can be a bit hard to find sometimes. One on-line source that
I've used that has them for reasonable prices is
http://www.futurlec.com/ProtoBoards.shtml

 

[Dave, I can't do that]

Thanks to everyone who replied. I will check out the suggestions.

I know I could use strip board but I don't like it especially when I
stand to blow up a $3600 laser if I get it wrong, but the idea of
laying it out first in software for strip board sounds like a useful
approach.

The idea of automatically laying out the board from a schematic
appealed as it removed a whole shit load of potential for error.

Dave

 

[neon]

EXPRESSPCB easy to use even a fool can use it. forget about eagle good but the learng curve is silly as opposed to expresspcb. both free.

 

[Dave, I can't do that]

You are going to check the output waveforms before hooking up the
laser either way, right?

Oh you betcha David, I will actually attempt to have it destroy itself
before it gets near the laser. In fact I have ordered 5 sets of parts,
just in case.

I have a TEK TDS210 gathering dust in the garage.

Dave