Hifi Passive filters

Do you write from other PC than you run KiCa. If not than why you just not get screen-shot to past it into your post.

At Windows I am pressing Shift+PrtSc - screen copy is ‘somewhere’.
I run IfranView or Gimp and the Ctrl+V and I have these screen copied into program.
Then I cut rectangle I want and save it as png file in my TMP directory and then use it in my post.

yes you’re right for the screenshot…

i’ve spoken too fast. No footprint corresponding exactly for my components…

I’ve succeeded. In fact i create custom footprint from the scheme… Create a new library to store my components…

Nothing really too complicated… But i always started the bad way… Thank you for your advises.

Now i hope i could create holes in the PCB to fix the air coil with collars…

Is it possible after editing all the footprints and make the PCB ? Will it be possible ?

Now i hope i could create holes in the PCB to fix the air coil with collars…

You could look in the ‘Mechanical’ library for MountingHoles. You can just add them to the PCB - although if you do that you have to be slightly careful if you update the PCB from the schematic as you can delete them if you don’t pay attention to the options. You can put the Mounting Holes in the schematic to avoid this.

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Hi to all.
Got this right now…
My terminals are too little for the wires. I’ll have to chage the footprint to fit the 15 AWG wires.

Now i have to make paths from all this mess… Let’s try !!!

Is that OK ?
Blue paths for back PCB if i understand ? To me that looks ok.

Now trying to put holes to fix the air coils.

Better.

Use thicker tracks, much thicker, especially as this is a low impedance circuit. All that wasted copper.

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By spending a couple of minutes opening and looking at four other threads you can promote yourself so you are able to post more than one image at a time if you wish. See this FAQ.

There are also FAQs on personal library management that may also be of use in the future.

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Two images done in different times. Couldn’t post them together.

I know i have to make borders to define the size of the PCB. Will check this.

Then i’ll export to a gerber file. If no other step.

Right ?

Not only much thicker tracks, as @retiredfeline recommends, but much larger pads. There appear to be some large components that, in the interest of robustness, could do with more copper for anchoring. Also check your wire diameters on the components and make sure the holes in the pads are large enough to fit the wires.

I’ve put 1.2 mm holes for capacitors, and 1.5 mm holes for the inductor, that has 15 awg wire. I think that’s it.

I’ll put holes around the inductors to fix them on the PCB

15AWG has a diameter of 1.45mm, so you’re going to struggle to get that in a 1.5mmm hole. Increase the hole size to 1.7mm to make your life a lot easier. It will be a lot easier to solder, too.

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Got it !!! Thank you

This has morphed into “Project” help rather than KiCad specific so have changed the category . . .

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I’d like to thank you guys for the help. I’ve succeeded in making the PCB i wanted to do. Exact footprints…

The step i missed was beginning with generic components for scheme… I used to start trying to enter my custom components but that was not the good starting… It’s really simple this way.

So thank you. truly.

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When I was in college I made my own speakers for the dorm room. I had a couple of woofers from somewhere; probably ordered from a catalog. Also some polystyrene planar speakers for midrange and some sort of tweeter.

I cut a big round hole in the base of inverted plastic trash cans and mounted the woofers face up in that. The planar speaker hung off the side. My crossover inductor was (If I remember) 170 turns of hookup wire on a piece of steel rod. I do not remember what I did to highpass the tweeter input.

Needless to say, this was all audiophile perfection!!! :crazy_face:

Maybe my filters would have better been classified as “failive”? I am sure that the plastic trash cans must have had great acoustic properties.

You mean “Polymer resin enclosures with infinite baffle”, right?

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