SW_Push_12mm drill holes too small

crazyquark · June 28, 2019, 8:10am

Hi,

The holes for the SW_PUSH_12mm are 0.8mm which is too small for the switch it is supposed to be for: https://www.e-switch.com/system/asset/product_line/data_sheet/143/TL1100.pdf

The pins on that are 1mm wide while the footprint is only 0.8mm…

I am referring to this:

github.com

KiCad/kicad-footprints/blob/master/Button_Switch_THT.pretty/SW_PUSH-12mm.kicad_mod

(module SW_PUSH-12mm (layer F.Cu) (tedit 5D160D14)
  (descr "SW PUSH 12mm https://www.e-switch.com/system/asset/product_line/data_sheet/143/TL1100.pdf")
  (tags "tact sw push 12mm")
  (fp_text reference REF** (at 6.08 -4.66) (layer F.SilkS)
    (effects (font (size 1 1) (thickness 0.15)))
  )
  (fp_text value SW_PUSH-12mm (at 6.62 9.93) (layer F.Fab)
    (effects (font (size 1 1) (thickness 0.15)))
  )
  (fp_line (start 0.25 8.5) (end 12.25 8.5) (layer F.Fab) (width 0.1))
  (fp_line (start 0.25 -3.5) (end 12.25 -3.5) (layer F.Fab) (width 0.1))
  (fp_line (start 12.25 -3.5) (end 12.25 8.5) (layer F.Fab) (width 0.1))
  (fp_text user %R (at 6.35 2.54) (layer F.Fab)
    (effects (font (size 1 1) (thickness 0.15)))
  )
  (fp_line (start 0.1 -3.65) (end 12.4 -3.65) (layer F.SilkS) (width 0.12))
  (fp_line (start 12.4 0.93) (end 12.4 4.07) (layer F.SilkS) (width 0.12))
  (fp_line (start 12.4 8.65) (end 0.1 8.65) (layer F.SilkS) (width 0.12))
  (fp_line (start 0.1 -0.93) (end 0.1 -3.65) (layer F.SilkS) (width 0.12))
  (fp_line (start -1.77 -3.75) (end 14.25 -3.75) (layer F.CrtYd) (width 0.05))

This file has been truncated. show original

Sadly I realized this after creating the PCB…

Rene_Poschl · June 28, 2019, 9:40am

Report it over at github

crazyquark · June 28, 2019, 10:01am

Aaah, it was actually already reported, my bad https://github.com/KiCad/kicad-footprints/issues/1102

bobc · June 28, 2019, 10:11am

Hmm, now I think of it I also found this in a board I had made ages go but only recently got round to assembling. I don’t remember where the footprint came from.

That footprint goes back to the old “Discret.mod”, dating back to at least 2011. The hole sizes were 320 which I think is deci-mils, equivalent to 0.8128mm.

Either it was designed for a component with thinner leads, or it has always been wrong!

system · September 26, 2019, 10:11am

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.