Cumulative Design Review

Toggle pad v3

Toggle pad v3

by Svend Haugaard -
Number of replies: 6

After a couple of iterations the toggle pad is now at version 3, the devil is indeed in the details when designing PCBs :-)

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In reply to Svend Haugaard

Re: Toggle pad v3

by Jeremy Figgins -
Are you sure that the drill holes are correct for your key switches? My switches have a total of five posts/pins, as opposed to the three holes I see on your board.

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In reply to Jeremy Figgins

Re: Toggle pad v3

by Svend Haugaard -
Good point. The switches can be ordered with fixation pins (5 pins) for PCB mount without additional support frame, and without fixation pins (3 pins) for frame mount. I picked the latter :-)

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In reply to Svend Haugaard

Re: Toggle pad v3

by Anubhav Raina -

The board outline renders a little weird for me. Are these mounting holes?

Everything else looks super!

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In reply to Anubhav Raina

Re: Toggle pad v3

by Svend Haugaard -
Thanks :-)
Those are layer alignment targets

However, I should have placed auxiliary axis points in the front copper layer to support aligment for pich and place etc. but this little project will be hand mounted so it is not needed. Further, there are no mounting holes as I would snap the PCBA in place in an encapsulation. Snap need no space for holes and spacers, and they save cost for drilling and fixing by screws. Not that cost is an issue for this project but for most mass production, cost-down is a serious task.

Well, I guess that now I know the basics and some of the pitfalls for PCB layout, next level is then to learn what is needed for mass-production ;-)

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