技术控

    今日:0| 主题:63445
收藏本版 (1)
最新软件应用技术尽在掌握

[其他] Scanning Parts Into KiCad

[复制链接]
男的也很單純 发表于 2016-10-3 15:13:08
136 3

Scanning Parts Into KiCad

Scanning Parts Into KiCad

You do not know how to make a PCB unless you can make your own parts. [Jan] knows this, but like everyone else he checked out the usual online sources for a footprint for an SD card socket before making his own. It turns out, this SD card socket bought from an online marketplace was completely undocumented. Not only was an Eagle or KiCad footprint unavailable, but CAD files showing the dimensions of the part were non-existent. A solution had to be devised.
  Instead of taking calipers and finely measuring all the pads on this SD card socket – a process that would surely fail – [Jan] decided to use a flatbed scanner to trace out the part . The part was placed on the glass and scanned at 300 dpi with a convenient reference object (a public transport card) in the same picture. This picture was imported into a CAD package, scaled to the correct ratio, and exported as a DXF. Since KiCad readily accepts importing DXFs, the CAD file was easily accessed, traced over, and a new part created.
From start to finish, making the footprint for this no-name, off-brand SD card socket took fifteen minutes. That’s nothing compared to the time it would take to manually measure each of the pads, draw a footprint, and print out the footprint at 1:1 scale to see if it matched up several times. It’s awesome work, and a great reminder that the best tools are usually right in front of you.
刘旻芯 发表于 2016-10-3 17:19:44
顶起顶起顶起
回复 支持 反对

使用道具 举报

tqvjz 发表于 2016-10-7 01:13:09
路过...
回复 支持 反对

使用道具 举报

陈蕊 发表于 2016-10-11 11:42:09
到2016-10-11 走过了年少,脚起了水泡  
回复 支持 反对

使用道具 举报

我要投稿

回页顶回复上一篇下一篇回列表
手机版/c.CoLaBug.com ( 粤ICP备05003221号 | 粤公网安备 44010402000842号 )

© 2001-2017 Comsenz Inc.

返回顶部 返回列表