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Footprint for trimmer potentiometer
开云体育I rarely make printed boards, but I need to in
this case. I am using version 8.01. I have identified footprints
for all of the components except for a 1 kohm trimmer
potentiometer. This has? 5.08 mm spacing between the end pins
and 5.08 mm spacing of the slider pin from the line of the end
pins. The footprint library seems to be based on the user
choosing parts from a very limited number of suppliers and
knowing the exact part number. I can see no 'generic' footprints
at all, but I seem to remember that earlier versions of KiCad
had 'generic' footprints. Is the only solution to create a
footprint? --
OOO - Own Opinions Only Best wishes John Woodgate, Rayleigh, Essex UK Keep trying |
The preferred solution is to create your own footprint for the part you
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wish to use. Sometimes you can find an existing footprint that is close, save a copy of it in your personal footprint library, rename it as you desire, and modify it to be exactly what you need. The process, once understood, is not onerous. On 4/10/2024 11:21 AM, John Woodgate wrote:
I rarely make printed boards, but I need to in this case. I am using |
开云体育If you know the part number google search part number Kicad footprint. There are numerous websites which work with distributors, vendors, and so on to create symbols, footprints, and 3d models which you can download and import.Usually pots are generic so odds are very high a pre-existing example is out there. On 2024-04-10 2:21 p.m., John Woodgate
wrote:
|
开云体育Thank you, but I don't think I can find the
part number. I bought these parts quite a long time ago. On 2024-04-10 19:31, brian wrote:
If you know the part number google search part number Kicad footprint. There are numerous websites which work with distributors, vendors, and so on to create symbols, footprints, and 3d models which you can download and import. --
OOO - Own Opinions Only Best wishes John Woodgate, Rayleigh, Essex UK Keep trying |
开云体育Thank you. I will study the creation process. On 2024-04-10 19:28, CW via groups.io
wrote:
The preferred solution is to create your own footprint for the part you wish to use. Sometimes you can find an existing footprint that is close, save a copy of it in your personal footprint library, rename it as you desire, and modify it to be exactly what you need. The process, once understood, is not onerous. On 4/10/2024 11:21 AM, John Woodgate wrote:I rarely make printed boards, but I need to in this case. I am using version 8.01. I have identified footprints for all of the components except for a 1 kohm trimmer potentiometer. This has? 5.08 mm spacing between the end pins and 5.08 mm spacing of the slider pin from the line of the end pins. The footprint library seems to be based on the user choosing parts from a very limited number of suppliers and knowing the exact part number. I can see no 'generic' footprints at all, but I seem to remember that earlier versions of KiCad had 'generic' footprints. Is the only solution to create a footprint? -- 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 |
If they are older parts they are likely(?) to be on a 0.1 inch pitch
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maybe. That, and a pair of calipers, would make it easy to make a sufficiently good footprint, I'd suggest. On 4/10/2024 2:10 PM, John Woodgate wrote:
Thank you, but I don't think I can find the part number. I bought these |
开云体育I do use a digital slide-gauge to measure
parts. But you mention? '0.1 inch': is there a new 'standard'
pitch unit now? On 2024-04-10 22:13, CW via groups.io
wrote:
If they are older parts they are likely(?) to be on a 0.1 inch pitch maybe. That, and a pair of calipers, would make it easy to make a sufficiently good footprint, I'd suggest. On 4/10/2024 2:10 PM, John Woodgate wrote:Thank you, but I don't think I can find the part number. I bought these parts quite a long time ago. On 2024-04-10 19:31, brian wrote:If you know the part number google search part number Kicad footprint. There are numerous websites which work with distributors, vendors, and so on to create symbols, footprints, and 3d models which you can download and import. Usually pots are generic so odds are very high a pre-existing example is out there. On 2024-04-10 2:21 p.m., John Woodgate wrote:I rarely make printed boards, but I need to in this case. I am using version 8.01. I have identified footprints for all of the components except for a 1 kohm trimmer potentiometer. This has? 5.08 mm spacing between the end pins and 5.08 mm spacing of the slider pin from the line of the end pins. The footprint library seems to be based on the user choosing parts from a very limited number of suppliers and knowing the exact part number. I can see no 'generic' footprints at all, but I seem to remember that earlier versions of KiCad had 'generic' footprints. Is the only solution to create a footprint? -- 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 --
OOO - Own Opinions Only Best wishes John Woodgate, Rayleigh, Essex UK Keep trying |
You may find some parts on a millimetre pitch (5 mm, 2 mm) rather than
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'inches converted to millimetres' (i.e. 0.1 inch as 2.54 mm). On 4/10/2024 2:21 PM, John Woodgate wrote:
I do use a digital slide-gauge to measure parts. But you mention? '0.1 |
开云体育Thank you. On 2024-04-10 22:29, CW via groups.io
wrote:
You may find some parts on a millimetre pitch (5 mm, 2 mm) rather than 'inches converted to millimetres' (i.e. 0.1 inch as 2.54 mm). On 4/10/2024 2:21 PM, John Woodgate wrote:I do use a digital slide-gauge to measure parts. But you mention? '0.1 inch': is there a new 'standard' pitch unit now? On 2024-04-10 22:13, CW via groups.io wrote:If they are older parts they are likely(?) to be on a 0.1 inch pitch maybe. That, and a pair of calipers, would make it easy to make a sufficiently good footprint, I'd suggest. On 4/10/2024 2:10 PM, John Woodgate wrote:Thank you, but I don't think I can find the part number. I bought these parts quite a long time ago. On 2024-04-10 19:31, brian wrote:If you know the part number google search part number Kicad footprint. There are numerous websites which work with distributors, vendors, and so on to create symbols, footprints, and 3d models which you can download and import. Usually pots are generic so odds are very high a pre-existing example is out there. On 2024-04-10 2:21 p.m., John Woodgate wrote:I rarely make printed boards, but I need to in this case. I am using version 8.01. I have identified footprints for all of the components except for a 1 kohm trimmer potentiometer. This has? 5.08 mm spacing between the end pins and 5.08 mm spacing of the slider pin from the line of the end pins. The footprint library seems to be based on the user choosing parts from a very limited number of suppliers and knowing the exact part number. I can see no 'generic' footprints at all, but I seem to remember that earlier versions of KiCad had 'generic' footprints. Is the only solution to create a footprint? -- 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-- Signature OOO - Own Opinions Only Best wishes John Woodgate, Rayleigh, Essex UK Keep trying --
OOO - Own Opinions Only Best wishes John Woodgate, Rayleigh, Essex UK Keep trying |
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开云体育It's a 5 mm square preset. No room. On 2024-04-10 22:37, brian wrote:
Part numbers are generally stamped into pots. --
OOO - Own Opinions Only Best wishes John Woodgate, Rayleigh, Essex UK Keep trying |
开云体育Creating a footprint is very similar to "normal" pcb design. There are probably tons of youtube video that will show you how to do it if you are afraid of trying yourself..Or just start with an existing footprint, "save as" you new name (create your own library!), and modify pad position, dimensions etc. Designing or modifying footprints is really something a pcb designer should know. By the way, big resellers like Mouser and Digikey have CAD models of their parts, also in KiCad format. Schematic symbols. footprints and 3D models. Library management can be a bit difficult to master. You'll need to add your own library. I would suggest to use Onedrive of similar for you own libraries. That makes it very easy to keep libraries (and pcb designs) in sync between multiple computers. Success, Reinier Op 10-4-2024 om 20:21 schreef John
Woodgate:
|
开云体育Thanks, Reinier. I am probably odd, but I do
not like video instructions. I will study the KiCad manuals and
see if I can find the 5 mm preset pot for sale by those
suppliers. On 2024-04-11 08:58, Reinier Gerritsen
wrote:
Creating a footprint is very similar to "normal" pcb design. There are probably tons of youtube video that will show you how to do it if you are afraid of trying yourself.. --
OOO - Own Opinions Only Best wishes John Woodgate, Rayleigh, Essex UK Keep trying |