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How to desolder the switches and flip the circuit board around?

How to desolder the switches and flip the circuit board around?

From:
Nolan Woods
Date:
2015-05-11 @ 03:04
So, I rather misread the instructions, and thought that the labelled side
of the board was supposed to be face up *as seen through the holes in the
switch plate*. Whoops.

(I was even about to send an email asking if there was a mistake in  the
labelling of the spots to apply red switches, which you would think would
have tipped me off, but apparently not. Of course I already had the corner
switches fixed in place so it was already too late for me.)

And now I've got most of the bottom row of switches soldered on and am not
sure what to do.

If anyone has advice for how to back out of this particular corner, help
would be greatly appreciated!

-Nolan

Re: [atreus] How to desolder the switches and flip the circuit board around?

From:
Phil Hagelberg
Date:
2015-05-11 @ 03:11
Nolan Woods <nolan@nolanwoods.net> writes:

> So, I rather misread the instructions, and thought that the labelled side
> of the board was supposed to be face up *as seen through the holes in the
> switch plate*. Whoops.

Believe it or not, you're not actually the first person to make this mistake. =)
I did it on an early prototype.

Provided you can get the case closed with the PCB in the orientation
it's currently in, you may be able to continue without desoldering the
switches. There's a branch of the firmware that corrects for the
backwards pinout in firmware:

  https://github.com/technomancy/atreus-firmware/tree/pcb-flip

As long as the case can be closed, I'd recommend sticking with this
method.  If the controller is sticking out too far, then you may need to
desolder the switches so the controller can face the other direction. I
recommend using a desoldering pump for this; just hold your iron to the
joint and use the pump to suck the melted solder out. I have done it
using a cheap one from Radio Shack; there's no need to get fancy. It may
take two or three attempts to remove all the solder from the pin for a
switch, but with some patience you can definitely get it done.

Hope that helps!

-Phil

Re: [atreus] How to desolder the switches and flip the circuit board around?

From:
Nolan Woods
Date:
2015-05-11 @ 03:28
Oh man, that's fantastic! The case does indeed (just barely) fit. I'm going
to proceed with it as is, then.

Thanks, Phil!

And thanks for the quick reply. I was resigned to being done for the
evening but as it is I just might finish this tonight.


On Sun, May 10, 2015 at 9:11 PM, Phil Hagelberg <phil@hagelb.org> wrote:

> Nolan Woods <nolan@nolanwoods.net> writes:
>
> > So, I rather misread the instructions, and thought that the labelled side
> > of the board was supposed to be face up *as seen through the holes in the
> > switch plate*. Whoops.
>
> Believe it or not, you're not actually the first person to make this
> mistake. =)
> I did it on an early prototype.
>
> Provided you can get the case closed with the PCB in the orientation
> it's currently in, you may be able to continue without desoldering the
> switches. There's a branch of the firmware that corrects for the
> backwards pinout in firmware:
>
>   https://github.com/technomancy/atreus-firmware/tree/pcb-flip
>
> As long as the case can be closed, I'd recommend sticking with this
> method.  If the controller is sticking out too far, then you may need to
> desolder the switches so the controller can face the other direction. I
> recommend using a desoldering pump for this; just hold your iron to the
> joint and use the pump to suck the melted solder out. I have done it
> using a cheap one from Radio Shack; there's no need to get fancy. It may
> take two or three attempts to remove all the solder from the pin for a
> switch, but with some patience you can definitely get it done.
>
> Hope that helps!
>
> -Phil
>

Re: [atreus] How to desolder the switches and flip the circuit board around?

From:
Phil Hagelberg
Date:
2015-05-11 @ 04:31
Nolan Woods <nolan@nolanwoods.net> writes:

> And thanks for the quick reply. I was resigned to being done for the
> evening but as it is I just might finish this tonight.

Awesome! Good luck finishing it off; hope it goes well.

-Phil