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Re: 'Snap to grid'

 

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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.

--
Regards,
Tony


Re: 'Snap to grid'

 

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


Re: 'Snap to grid'

 

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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


'Snap to grid'

 

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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.

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John Woodgate, Rayleigh, Essex UK
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Re: Components have specified ends

 

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


Re: Components have specified ends

 

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

On 2024-04-13 21:35, Andy wrote:
Another thing to note. Remember to check the right !lick context menu you should find all sorts of footprint movement options there.

Andy
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Re: Components have specified ends

 

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

Andy


Re: Components have specified ends

 

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


Re: Components have specified ends

 

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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




On 13/04/24 19:04, John Woodgate wrote:

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.

On 2024-04-13 18:58, Jorge Ferreira wrote:
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

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


Re: Components have specified ends

 

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

Op 13-4-2024 om 19:47 schreef John Woodgate:

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.

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

Virus-free.


Re: Components have specified ends

 

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.

On 2024-04-13 18:58, Jorge Ferreira wrote:
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>











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


Re: Components have specified ends

 

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>



Re: Components have specified ends

 

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>


Components have specified ends

 

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.

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

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Re: PWR_FLAG

 

See:



in particular, the subsection 'Power Symbols'.

On 4/12/2024 8:51 AM, John Woodgate wrote:
Thanks all for help.

On 2024-04-12 14:34, Reinier Gerritsen wrote:
Place one after the switch as well. You could also just ignore the
warning.

Reinier

Op 12-4-2024 om 15:31 schreef John Woodgate:

I have attached PWR_FLAG labels to my battery input terminals, but I
still get a 'not driven' violation on the positive rail after the
on-off switch, which is shown in the ON position. Is this normal, or
have I got a hidden error in the schematic?

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

<> Virus-free.www.avg.com <>

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
--
Signature OOO - Own Opinions Only
Best wishes
John Woodgate, Rayleigh, Essex UK
Keep trying


Re: PWR_FLAG

 

开云体育

Thanks all for help.

On 2024-04-12 14:34, Reinier Gerritsen wrote:
Place one after the switch as well. You could also just ignore the warning.

Reinier

Op 12-4-2024 om 15:31 schreef John Woodgate:

I have attached PWR_FLAG labels to my battery input terminals, but I still get a 'not driven' violation on the positive rail after the on-off switch, which is shown in the ON position. Is this normal, or have I got a hidden error in the schematic?

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

Virus-free.

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


Re: PWR_FLAG

 

开云体育

Place one after the switch as well. You could also just ignore the warning.

Reinier

Op 12-4-2024 om 15:31 schreef John Woodgate:

I have attached PWR_FLAG labels to my battery input terminals, but I still get a 'not driven' violation on the positive rail after the on-off switch, which is shown in the ON position. Is this normal, or have I got a hidden error in the schematic?

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

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Re: PWR_FLAG

 

Kicad doesn't know that switches have an "on" and and "off", so you have
to place the power flag downstream of the switch.

Regards,

Robert.

* Plain text email - safe, readable, inclusive. *


Re: PWR_FLAG

 

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Hard to visualize what you are saying but the pin has to be defined as power or passive I think.

On 2024-04-12 9:31 a.m., John Woodgate wrote:

I have attached PWR_FLAG labels to my battery input terminals, but I still get a 'not driven' violation on the positive rail after the on-off switch, which is shown in the ON position. Is this normal, or have I got a hidden error in the schematic?

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

Virus-free.


PWR_FLAG

 

开云体育

I have attached PWR_FLAG labels to my battery input terminals, but I still get a 'not driven' violation on the positive rail after the on-off switch, which is shown in the ON position. Is this normal, or have I got a hidden error in the schematic?

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

Virus-free.