kicad-developers team mailing list archive

[Daniel Dawid Majewski <lordblick@xxxxxxxxx>]

In response to a message written on 13.02.2015, 22:09, from Mathias Grimmberger:
> Hi everbody,
>
> below is a patch to add a first version of support for rectangular pads
> with rounded corners to KiCad. The patch was created against revision
> 5414.
>
> The radius of the rounded corners is fixed at 25% of the shorter pad
> edge, but not larger than 0.25 mm. I'm not sure whether the radius needs
> to be adjustable.

Nice idea!
Also, it will be nice to have rounded rectangular drills, defined as NPTH pads. 
The radius of the corner will be defined by tool diameter, as in round drill and 
some deltas as in trapezoid pad. What for? There are some components, mounted 
through the PCB cut window, in example SMD LED lightening to top, mounted on the 
bottom. In a Gerber file generation, composed of four oval drills, opposite to 
the tool rotation direction must be taken - some cheap milling tends to stray 
from the specified direction of cutting, if cutting direction is consistent with 
the direction of rotation of the tool.
To this day, I use a few extra bogus pads to define the cutting window.
Some example in attachment.
I'm tired of constantly skipping DRC rules check in this component.

--
Best Regards,
LordBlick

(module "FitDev Custom:LED-1206R" (layer F.Cu) (tedit 52EEA941)
  (descr "LED 1206 smd package")
  (tags "LED led 1206 SMD smd SMT smt smdled SMDLED smtled SMTLED")
  (attr smd)
  (fp_text reference LED-1206R (at 0 -1.3208) (layer F.SilkS)
    (effects (font (size 0.508 0.381) (thickness 0.0381)))
  )
  (fp_text value Val** (at 0 1.3208) (layer F.SilkS)
    (effects (font (size 0.508 0.381) (thickness 0.0381)))
  )
  (fp_line (start -0.09906 0.09906) (end 0.09906 0.09906) (layer F.SilkS) (width 0.06604))
  (fp_line (start 0.09906 0.09906) (end 0.09906 -0.09906) (layer F.SilkS) (width 0.06604))
  (fp_line (start -0.09906 -0.09906) (end 0.09906 -0.09906) (layer F.SilkS) (width 0.06604))
  (fp_line (start -0.09906 0.09906) (end -0.09906 -0.09906) (layer F.SilkS) (width 0.06604))
  (fp_line (start 0.89916 0.6985) (end 0.89916 -0.6985) (layer F.SilkS) (width 0.0508))
  (fp_line (start -0.89916 0.6985) (end -0.89916 -0.6985) (layer F.SilkS) (width 0.0508))
  (fp_line (start 1.5494 0.7493) (end -1.5494 0.7493) (layer F.SilkS) (width 0.1016))
  (fp_line (start -1.5494 0.7493) (end -1.5494 -0.7493) (layer F.SilkS) (width 0.1016))
  (fp_line (start -1.5494 -0.7493) (end 1.5494 -0.7493) (layer F.SilkS) (width 0.1016))
  (fp_line (start 1.5494 -0.7493) (end 1.5494 0.7493) (layer F.SilkS) (width 0.1016))
  (fp_circle (center 0 0) (end 0.54864 0.49784) (layer F.SilkS) (width 0.0508))
  (pad A smd rect (at -1.41986 0) (size 1.397 2.032) (layers F.Cu F.Paste F.Mask))
  (pad K smd rect (at 1.41986 0) (size 1.397 2.032) (layers F.Cu F.Paste F.Mask))
  (pad Z1 thru_hole rect (at 0 -0.35052) (size 0.635 0.254) (drill oval 2.6 1 (offset 0 -0.28448)) (layers *.Cu)
    (clearance 0.381))
  (pad Z2 thru_hole rect (at 0.8001 0) (size 0.127 0.254) (drill oval 1 1.7 (offset -0.4318 0)) (layers *.Cu)
    (clearance 0.381))
  (pad Z3 thru_hole rect (at 0 0.35052) (size 0.635 0.254) (drill oval 2.6 1 (offset 0 0.28448)) (layers *.Cu)
    (clearance 0.381))
  (pad Z4 thru_hole rect (at -0.8001 0) (size 0.127 0.254) (drill oval 1 1.7 (offset 0.4318 0)) (layers *.Cu)
    (clearance 0.381))
)