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Re: Vida to Path clearance
Jerry Durand
¿ªÔÆÌåÓýI understand the larger ring, for PTH the hole is overdrilled and then plated back to size.? Heavier copper = larger overdrill.On 01/02/2023 03:09, Rick Collins
wrote:
The math works out only for 1 oz. copper.? For 2 oz copper, they specify a larger annular ring, but not a larger via hole to trace spec.? This is a lot of work to double check all the parameters.? They're terminology is not good, e.g. using "via" to mean the via hole, rather than the pad.? They make it even worse by mixing dimensions, mil and mm.? |
Re: Vida to Path clearance
The math works out only for 1 oz. copper.? For 2 oz copper, they specify a larger annular ring, but not a larger via hole to trace spec.? This is a lot of work to double check all the parameters.? They're terminology is not good, e.g. using "via" to mean the via hole, rather than the pad.? They make it even worse by mixing dimensions, mil and mm.?
-- Rick Collins ? - Get 1,000 miles of free Supercharging ? - Tesla referral code - |
Re: Vida to Path clearance
What is confusing about the pictures here? Then look under minimum clearance, and the last picture seems to be what the OP is asking about. The pad to track dimension seems to match the PTH to track dimension plus the minimum annular ring dimension, which is what I would expect. The NPTH to track dimension will be different because there will be no annular ring (despite showing one in the picture). On Tue, 31 Jan 2023 at 15:47, Rick Collins <gnuarm.2007@...> wrote: You will need to ask JLCPCB then.? I've always found their web site to be confusing, with unclear terminology.? This makes no sense to me.? Copper to copper should be the same regardless of which copper it is. |
Re: Vida to Path clearance
You will need to ask JLCPCB then.? I've always found their web site to be confusing, with unclear terminology.? This makes no sense to me.? Copper to copper should be the same regardless of which copper it is.
-- Rick Collins ? - Get 1,000 miles of free Supercharging ? - Tesla referral code - |
Re: Vida to Path clearance
On 30.01.23 02:19, Rick Collins wrote:
Are you sure the spacing you are reading is via to track and not via /*hole*/ to track?Hi, yes, it's part of the capability specification from JLCPCB: If you scroll down to 'minimum clearance' there is an entry like: Via to Track 0.254mm But a little further down the page you'll find 'Minimum trace width and spacing', where min. track width and min. track clearance is specified as: 1-2 Layers 5mil (0.127mm) 5mil (0.127mm) I just realized it few days ago as I wanted to create a really tiny PCB. In kicad I had to use 0.524mm for both clearances wasting some space, when assembling by JLCPCB. I don't think there is much reason to set a different spacing between any particular copper areas.? But on inner layers, you can have vias with no pad on that layer, so there is a different requirement for spacing from the via hole to a trace.Well JLCPCB provides track to hole clearances as well: PTH to Track 0.33mm NPTH to Track 0.254mm I would assume the different specs for via2track and track2track clearance arise from their manufacturing tolerances. -Milosz -- |
Re: Vida to Path clearance
Are you sure the spacing you are reading is via to track and not via hole to track??
I don't think there is much reason to set a different spacing between any particular copper areas.? But on inner layers, you can have vias with no pad on that layer, so there is a different requirement for spacing from the via hole to a trace.? -- Rick Collins ? - Get 1,000 miles of free Supercharging ? - Tesla referral code - |
Vida to Path clearance
Hi All,
is there a way to set specific clearance between via and track? In PCB Editor File->Board Setup->Net Classes I can only modify the 'clearance' which, I suppose, is the same for track to track as well as track to via. Several production sites however provide different specifications for via2track and track2track clearances. Obviously the latter is usually smaller. It would be nice to have it in kicad as well, thus my question. Regards, Milosz |
Fedora Rawhide upgrade to 7.0.0-rc2
This email is a "heads up" that Fedora Rawhide will soon have KiCad version 7.0.0-rc2.
Designs created with KiCad 6 and earlier are readable / editable by KiCad 7. However, once a design is saved with KiCad 7, it will no longer be readable by KiCad 6 or earlier. By policy, numbered Fedora releases (F36, F37, etc) will not be auto-upgraded to KiCad 7, but builds will be available on Copr for those Fedora users who want to move forward. Steve |
3D search path in v7
Hi devs,
I gave KiCad 7rc1 a try, and I have a question. I used to set up 3D model search path aliases, but I think this has been removed from v7. Is there any way to add (possibly more) 3D paths to Kicad to search for models? Thanks, Levente -- Levente Kovacs Senior Electronic Engineer W: |
Re: KiCad failed to download plugins
Hi
No idea how Python can help... (BTW, KiCad not ask for Python installation) Installing Python is not helped. My steps: - Uninstall plugin - Install from plugin manager, no success - Install Python - Install from plugin manager, no success - reinstall from from file - OK? As always KiCad is not provide any information what cause a problem or how problem can be resolved. -- Regards, Victor |
Re: KiCad failed to download plugins
Hello
It works out of the box with Linux, but I think most, if not all, allBut if they install Python, i saw Linux distributions with Python by default but without tkinter. So despite there is Python, some libraries youn need might be missing. With best Regards: Bernd Wiebus alias dl1eic ? ? ? Gesendet:?Freitag, 13. Januar 2023 um 00:40 Uhr Von:?"Tony Casey" <tony@...> An:[email protected] Betreff:?Re: [kicad-users] KiCad failed to download plugins On 13/01/2023 00:11, LV wrote: KiCad failed to download plugins (any plugins or libraries or colorDo you have Python installed? Try reading this: It works out of the box with Linux, but I think most, if not all, all varieties install Python by default. -- Regards, Tony |
Re: KiCad failed to download plugins
Hello Tony,
Thank you for help. I`m interesting exactly this plugin. Yes, I read information from your link. But not found anything that help me. I install?InteractiveHtmlBom from downloaded file. Interesting that on other PC plugin installation work correct from KiCad package manager (W10 x64, KiCad 6.0.10) -- Regards, Victor |
Re: KiCad failed to download plugins
On 13/01/2023 00:11, LV wrote:
KiCad failed to download plugins (any plugins or libraries or color themes)Do you have Python installed? Try reading this: It works out of the box with Linux, but I think most, if not all, all varieties install Python by default. -- Regards, Tony |
Re: "Symbol 'GND' has been modified in library 'power'." ERC
Thanks that fixed it.
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Dave On 12/01/2023 15:42, Steven A. Falco wrote:
I have found that the best way to fix this is to: |
Re: "Symbol 'GND' has been modified in library 'power'." ERC
I have found that the best way to fix this is to:
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1) highlight the symbol 2) type 'E' to bring up the properties 3) click "update symbol from library..." 4) choose the radio button "Update symbols matching value" or "Update symbols matching library identifier" 5) click "Update" Sometimes I have to do this twice - I don't know why - but that clears the error for me. And it is quicker to do than to type the above explanation. :-) I hope that helps you. Steve On 1/11/23 07:47 PM, David Slipper wrote:
The result of the update was a move from V6 to V6 so I'd hope that the library formats are the same
|
Re: "Symbol 'GND' has been modified in library 'power'." ERC
The result of the update was a move from V6 to V6 so I'd hope that the library formats are the same
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especially the rather fundamental PWR and GND flag symbols. No other library has had a problem, even symbols that I have created. I tried updating those symbols but it made no difference, neither did deleting them from the schematic and inserting new symbols. When I setup Kicad on the new machine I did import the settings from the old machine. I wonder if that caused the problem ?? Dave On 11/01/2023 23:56, Andy wrote:
Click on one of the errors and see exactly what the problem is. |
Re: "Symbol 'GND' has been modified in library 'power'." ERC
Click on one of the errors and see exactly what the problem is.
If it's not obvious then it may be: The version of Kicad that you have installed on the new machine has different library versions than on the machine that you designed the circuit on. I have seen software updates come down that update the libs and modules, etc. Update the symbol and see if that solves the problem. I've not pulled enough old projects into K6 as yet, but I thought I saw an option to update the symbols etc as when it was opened, but I may be mistaken on that. This is one of the main reasons why I only allow Kicad to use copies of the libraries that I have stored elsewhere on my system. That way any changes don 't affect my setup. If there is a change that I need,, then it's a simple matter to manually make the change. Andy On Wed, 11 Jan 2023 21:21:40 +0000 "David Slipper" <softfoot@...> wrote: I have recently installed KICAD on a new Win10 machine and when running |
"Symbol 'GND' has been modified in library 'power'." ERC
I have recently installed KICAD on a new Win10 machine and when running ERC on an existing project (created on
a different WIN10 machine) I get a string of these warnings (See attached RPT file). I know for a fact that I have never modified those symbols. What have I done wrong ??? Is there a way around this ?? The original project was created under 6.0.7 and the new machine has 6.0.10 Regards, Dave |
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