Help to design a PCB for my PI design!

[J_Player]

In reality there can be a problem with schematics that don't have tie-dots.

Problem solved:

[Qiaozhi]

I suppose you have never heard of the standard where no connections are made where wires cross. Remember that no connections are made where wires cross and you don't have to worry "did he forget and leave a connection dot out". Dots are superflous when all connections are at "T" intersections rather than crosses.

Sorry this standard does not meet with your approval, but I did not invent it. It makes perfect sense to me.

In reality there can be a problem with schematics that don't have tie-dots.
I've seen the situation more than once where two right-angled tracks are touching at the corners. To the naked eye this looks like a crossover point.
It is always safest to use tie-dots, and never to use 4-way crossovers.

[porkluvr]

<snip>... no big deal but adds difficulty.<snip>

What's hard? Just follow a wire until it ends. Sure, it takes getting used to but it's not difficult. I know I'm in the minority here and I won't waste any more time swimming upstream. If this were someone's commercial project and they wanted dots I would say "No Way Dude" (just kidding). I would say "fine (jerk)". (I'm such a kidder.)

[Fred]

Schematic fits on 8-1/2 X 11. Eagle's schematics are normally butt-ugly. I modify 99.9% of all the symbols I use, and I don't like junction dots
cluttering up a drawing. I think it looks better that way.

I won´t throw any standart in your face , but i hate the no-dots schematics.
at every intersection one must check if it is a T or not, of course no big deal but adds difficulty.
On the other hand dot don´t bother me .
Just my personal idea, nothing else

[porkluvr]

No Junction Dots ? This Schematic is very hard to read.
Drawing Schematics is not Art, its strictly technical.
There are Standards for this. Better use them.

I suppose you have never heard of the standard where no connections are made where wires cross. Remember that no connections are made where wires cross and you don't have to worry "did he forget and leave a connection dot out". Dots are superflous when all connections are at "T" intersections rather than crosses.

Sorry this standard does not meet with your approval, but I did not invent it. It makes perfect sense to me.

[Götz von Berlichingen]

Schematic fits on 8-1/2 X 11. Eagle's schematics are normally butt-ugly. I modify 99.9% of all the symbols I use, and I don't like junction dots
cluttering up a drawing. I think it looks better that way.

Time to go work some more on "Elderadoo" PCB (argh).

No Junction Dots ? This Schematic is very hard to read.
Drawing Schematics is not Art, its strictly technical.
There are Standards for this. Better use them.

[barry]

Work in progress.

[okantex]

Hi ,
what about simulation of this schemetic. does it work ? what is the possible earliest sampling time after Tx-off order of micro's related pin.
Does it have chance of early sampling for discrimination experiments.?


and question to 1843 ,
what about big coil performance , do you have big coils like 8" or 18" diameter.

can you compare it with delta pulse.?

regards
Okantex

[porkluvr]

Eagle schematic

Schematic fits on 8-1/2 X 11. Eagle's schematics are normally butt-ugly. I modify 99.9% of all the symbols I use, and I don't like junction dots
cluttering up a drawing. I think it looks better that way.

Time to go work some more on "Elderadoo" PCB (argh).

[Carl-NC]

The PCB is for all, not me!
When you buy a kit (eg PD3200 or Goldpic), do they give you source code?

That's fine, it's your project so you should do with it what you want. All I'm saying is, you may have trouble getting someone to do a layout for you if the project is not completely open.

Why don't you lay it out yourself? It's a simple circuit, and there are many options available.

- Carl

[porkluvr]

You don't want help designing a board, you want someone to design the board for you. It would probably help if you gave a list of preferred footprints or lead spacings you desire. We can probably guess that your opamp would be a dip-8, but what about your crystal? Capacitors lead spacings (note the plural)? Would 100 mil be OK for your ribbon cable, or 50mil, or what?

Are those TO-220 regulators, or TO-92? What is the trimpot(s) footprint?

This would be simple to do in Cadsoft Eagle, and would probably even fit the freeware version's 3-1/2" X 4-1/4" allowance.

What would someone get in return for turning out a PCB pattern to your satisfaction?

[1843]

You may be asking a lot, for someone to design you a PCB but not willing to share your code.

The PCB is for all, not me!
When you buy a kit (eg PD3200 or Goldpic), do they give you source code?

In my opinion, people need source code for PI's like Clone-PI or Miner to play with it, maybe...

Best regards,
1843

[Carl-NC]

You may be asking a lot, for someone to design you a PCB but not willing to share your code.

[1843]

Hello

Dear 1843

Will you give source code for Amtel ?
How can people use your good designed PI?

Best Wishes
Erol

Hi,

First of all for using my PI, you don't need the source code... only .Hex file...
Secondly there's no PCB layout to build this PI at the moment. We have to wait until someone design that.

Best regards,
1843

[erolunall]

Hello

Dear 1843

Will you give source code for Amtel ?
How can people use your good designed PI?

Best Wishes
Erol