Hi all, brand new to kicad. I am on windows and kicad version Application: KiCad Schematic Editor (64-bit) Version: (6.0.1), release build.

开云体育

Aha! I didn't find that this time, but I did about 5 years ago, using version 6. I didn't have to fix it. I also found that the widely-available converter-to-THT board for the SSM2167 has some pins offset.

It is possible that the footprint is one grid point off. I have found some footprints that are 0.1. Spacing, but the grig was set to 0.05 and the whoever drew the footprint started on grid point off. The only way to correct this is to edit the footprint and move it onto a main 0.1 grid point.

Andy

It is possible that the footprint is one grid point off. I have found some footprints that are 0.1. Spacing, but the grig was set to 0.05 and the whoever drew the footprint started on grid point off. The only way to correct this is to edit the footprint and move it onto a main 0.1 grid point.

Andy

开云体育

Agreed: I have definitely set the snap grid, but I wonder now whether I did that right at the beginning or one or two placings later.

The snap grid may be finer than the 2.54mm. It is a while since i used KiCad, but IIRC the visible grid is seperate to the snap grid.

On Mon, 15 Apr 2024 at 12:30, John Woodgate via <jmw=[email protected]> wrote:

I set the grid to 2.54 mm, but some parts are not snapped to the grid when first placed. If I try to move one, it then snaps, but It seems that I can place one 'off-grid' and not notice that. I do know that some parts use metric spacing, but I don't have any of them.

On 2024-04-15 12:12, Andy wrote:

Kicad alway snaps to grid in pcbnew you just set the grid size option in the menu

Be aware that some footprints a not based on imperial 0.1 grid nut use metric, the newer and components are often in a metric grid spacing

Andy

--
OOO - Own Opinions Only
Best wishes
John Woodgate, Rayleigh, Essex UK
Keep trying

Virus-free.

开云体育

I set the grid to 2.54 mm, but some parts are not snapped to the grid when first placed. If I try to move one, it then snaps, but It seems that I can place one 'off-grid' and not notice that. I do know that some parts use metric spacing, but I don't have any of them.

Kicad alway snaps to grid in pcbnew you just set the grid size option in the menu

Be aware that some footprints a not based on imperial 0.1 grid nut use metric, the newer and components are often in a metric grid spacing

Andy

开云体育

On 15/04/2024 13:12, Andy wrote:

Kicad alway snaps to grid in pcbnew you just set the grid size option in the menu

Be aware that some footprints a not based on imperial 0.1 grid nut use metric, the newer and components are often in a metric grid spacing

I think the OP is wanting this in the schematic editor.

Kicad alway snaps to grid in pcbnew you just set the grid size option in the menu

Be aware that some footprints a not based on imperial 0.1 grid nut use metric, the newer and components are often in a metric grid spacing

Andy

开云体育

On 15/04/2024 12:58, John Woodgate wrote:

I have now laid out my board but I want to make it using 0.1 inch perfboard, so I would like to have all parts on the 0.1 inch grid, but I don't see anywhere a 'snap to grid' option in PCB Editor. It is in Schematic editor, where I would have thought that it is less important. The word 'snap' doesn't appear in the documents. Please advise.

1. Right-click > Grid...
   
2. Right-click > Select All (Ctrl-A)
3. Right-click > Align Items to Grid

(This is in Version 8.)

--
Regards,
Tony

开云体育

I have now laid out my board but I want to make it using 0.1 inch perfboard, so I would like to have all parts on the 0.1 inch grid, but I don't see anywhere a 'snap to grid' option in PCB Editor. It is in Schematic editor, where I would have thought that it is less important. The word 'snap' doesn't appear in the documents. Please advise.

Ki cad has lots of command options, many of these care accessable when yob right click the mouse while an object is selected?
Usually just hovering the mouse pointer over the object is enough to select it.??

Andy

开云体育

Thanks, but I don't understand 'right !lick'. If it is 'right click', I still don't know what to click on.

Another thing to note. Remember to check the right !lick context menu you should find all sorts of footprint movement options there.

Andy

Another thing to note. Remember to check the right !lick context menu you should find all sorts of footprint movement options there.

Andy

This is exactly the behavior you want. (Think about electrolytic caps)

Put he mouse pointer over the component then press R a couple of times to rotate the footprint.
That should untangle the rats nest.

Andy

开云体育

Hi

Back in the day, when I was a Kicad rookie, I found this quite natural.

Pins are numbered in schematic symbols and also in PCB footprints, and naturally the symbols and footprints numbers must match.

Its just the symmetric non polarized components that can get you in this situation. But those cases are only a handful of components; the vast majority of electronics components have strict connection rules.

You can familiarize yourself with this and other details if you invest some time just browsing a few components with the symbol and footprint editors. You will also get a feeling for how ERC rules work.

Best regards

Jorge

开云体育

just turning twice always works. Try again, you must have made a mistake.
Reinier

开云体育

Thanks. I can't try it now, but I expect it will work. I guess it's needed for the schematic to work in simulation. But It's something that I would expect to be mentioned in 'Getting Started', because it's really quite fundamental to laying out a PCB.

Hi


Yes.

Also when I come across this issue when routing a PCB, I go back to the schematic and rotate the component there.


regards

Jorge


On 13/04/24 18:54, CW via groups.io wrote:

Are you trying to place a copper track from the end of one capacitor to
another and KiCad won't let you make that connection?

KiCad will only allow you to make connections between components that
are described in the schematic you have entered. So if your schematic
says the connections have to be made one way, and you try and do it
another way, it won't let you.

You can turn on the Ratsnest function in the PCB editor which will show
you the connections KiCad wants to make between components, driven by
what you put in the schematic. That should help you see what is going on.

On 4/13/2024 10:47 AM, John Woodgate wrote:

I am having a? problem with laying out a simple PCB, using version 8.01
under Widows 11. The problem is that even resistors and capacitors have
specified ends, and it seems impossible to overcome this. For example, I
have two capacitors to be connected in parallel to make up a
non-standard value. KiCad insists on connecting the north end of C1 to
the south end of C2, so the other connection C1S to C2N cannot be made.
I see that it's not possible to directly invert a footprint, and
applying? a 90 degree turn twice doesn't fix the problem.

I can't find anything about this in 'Getting Started' or the 'English
Documentation', but of course it might be in there somewhere. Please advise.

--?
Signature OOO - Own Opinions Only
Best wishes
John Woodgate, Rayleigh, Essex UK
Keep trying

??? Virus-free.www.avg.com

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

Hi


Yes.

Also when I come across this issue when routing a PCB, I go back to the schematic and rotate the component there.


regards

Jorge

Are you trying to place a copper track from the end of one capacitor to
another and KiCad won't let you make that connection?

KiCad will only allow you to make connections between components that
are described in the schematic you have entered. So if your schematic
says the connections have to be made one way, and you try and do it
another way, it won't let you.

You can turn on the Ratsnest function in the PCB editor which will show
you the connections KiCad wants to make between components, driven by
what you put in the schematic. That should help you see what is going on.

开云体育

I am having a? problem with laying out a simple PCB, using version 8.01 under Widows 11. The problem is that even resistors and capacitors have specified ends, and it seems impossible to overcome this. For example, I have two capacitors to be connected in parallel to make up a non-standard value. KiCad insists on connecting the north end of C1 to the south end of C2, so the other connection C1S to C2N cannot be made. I see that it's not possible to directly invert a footprint, and applying? a 90 degree turn twice doesn't fix the problem.?

I can't find anything about this in 'Getting Started' or the 'English Documentation', but of course it might be in there somewhere. Please advise.