[time-nuts] OCXO Support Board

[Bob kb8tq]

Hi

Going from “pro” layout tools to KiCad, the only big thing that seems to
be missing is a “full feature” DRC (design rules check) process in KiCad. 
The tools I worked with in the past had much more fine grained rules checking
features. 

Probably not a big deal for a basement project. It would have stopped things
dead if we tried to run it at work. We had at least 4 layers of rules checking 
that ran before the board finally went out for fab …..

Bob

> On May 14, 2020, at 12:08 PM, Mike Ingle <finndmike62 at gmail.com> wrote:
> 
> Hi All,
> 
> I will second Bob's comment on choosing a program with PCB - Schematic
> integration.  I can heartily recommend Kicad.  I own Altium designer, but
> work remotely for an American firm from Germany.  The US office uses PADs.
> We have finally agreed on projects going forward to both use Kicad.  While
> Altium designer is more mature, and a little smoother to use, all of the
> programs have quirks, and require that you become familiar with them.  So
> far I am not seeing any limitations in Kicad that would prevent getting
> good boards made.  And, many  prototype oriented houses accept Kicad PCB
> files directly (for example EUROCIRCUITS) , which saves you from generating
> Gerbers and drill files.
> 
> And Kicad just keeps getting better.
> 
> -- mike
> 
> 
> 
> On Thu, May 14, 2020 at 4:30 PM Bob kb8tq <kb8tq at n1k.org> wrote:
> 
>> Hi
>> 
>> I would toss in:
>> 
>> If you are starting from scratch, pick a program that allows you to easily
>> enter schematics as well as PCB layouts. Take the time to learn both sides
>> of the program. That will give you an automated check between the schematic
>> and the layout….. It also gives you a document to go back to / hand to
>> others
>> to show what the board was intended to do.
>> 
>> Bob
>> 
>>> On May 14, 2020, at 5:51 AM, ew via time-nuts <time-nuts at lists.febo.com>
>> wrote:
>>> 
>>> Thanks Mark for reminding me, spend 3 hours this morning reviewing
>> designs to be released. Found a couple of problems. Also went back to look
>> at the OCXO boards I released in 2018, found a problem on the board with no
>> Amp, the SMA is not grounded. Easy to fix, but if some one wants new Gerber
>> will publish it.Always try to have a third party check my designs. To many
>> designs 30 this year.
>>> Bert Kehren
>>> In a message dated 5/13/2020 10:18:33 PM Eastern Standard Time,
>> holrum at hotmail.com writes:
>>> 
>>> One thing that I recommend is that after completing the layout is to:1)
>> step back and wait a few days2) enjoy a few adult beverages while waiting3)
>> go back a re-check everything4) send it out to the board house
>>> You'd be surprised how often simple, subtle, not so subtle
>> glitches/tweaks/improvements show up after a pause in the process.
>>> ---------------
>>>> Once you get going, a board is a weekend project. Indeed, a simple
>> board might be anevening project. There’s not a lot involved.
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