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Hole in the Keyplate

Hole in the Keyplate

From:
Joe Schonbok
Date:
2015-08-13 @ 13:16
It's come up a few times in the last several months - accessing the
controller after the switches have been soldered in place.  I have
advocated cutting a hole in the switch plate as an alternative to
desoldering all the switches.  I've put up a couple photos of what I did:

https://www.dropbox.com/s/nxxusvo218o1o8m/AtreusWithHole.JPG?dl=0
https://www.dropbox.com/s/pbej9f2ulsproll/AtreusHoleCloseup.JPG?dl=0

It can be cut such that it will not show when the Atreus is fully
assembled.  It doesn't have to be very big.  I am not an engineer, but
subjectively I don't feel that the strength of the key plate is noticeably
compromised.

I agree that cutting such a hole when the controller is in place is a risky
operation, but not having access to the controller can be a problem for the
newbie solderers like me.  I suggest that a designed hole could be put into
the key plate to access the controller after assembly.  I think it would do
more good than harm.

Anyway, I'm loving my Atreus!

Joe

Re: [atreus] Hole in the Keyplate

From:
Phil Hagelberg
Date:
2015-08-13 @ 14:34
Joe Schonbok <joebok@gmail.com> writes:

> It can be cut such that it will not show when the Atreus is fully
> assembled. It doesn't have to be very big. I am not an engineer, but
> subjectively I don't feel that the strength of the key plate is
> noticeably compromised.

The problem here is that while any individual board might feel strong
enough with the cut in it, there's enough natural variation in the wood
itself that what works for one could cause problems with others. It's
not a uniformly predictable material like plastic.

> I agree that cutting such a hole when the controller is in place is a
> risky op eration, but not having access to the controller can be a
> problem for the newbie solderers like me. I suggest that a designed
> hole could be put into the key plate to access the controller after
> assembly. I think it would do more good than harm.

I'm actually considering changing the design so that the PCB is
upside-down from the current layout, which would leave the controller
exposed after construction. Some folks have done this by accident (it's
easy to adapt the firmware to compensate) without much trouble, so once
I get a chance to build a couple this way I may change the guide to
recommend doing this by default as long as there aren't any problems
with the spacing constraints.

-Phil

Re: [atreus] Hole in the Keyplate

From:
Lance Wicks
Date:
2015-08-13 @ 20:59
Hi all,
so after about 90 minutes of failing to make progress unsoldering switches
I went for "keyhole surgery".
Starting slightly to the right off the controller I hand drilled a whole
through the wood. Then carefully cut back to expose pins 1-3.

Using the solder sucker I cleared pin 3.
Then put a diode leg right through both holes and soldered both sides.
:-)

Sadly, still no response from the bottom row (except sw5:0).

Thoughts? Any ideas on how to diagnose where the fault is?

Lance

On Thu, Aug 13, 2015 at 3:34 PM, Phil Hagelberg <phil@hagelb.org> wrote:

> Joe Schonbok <joebok@gmail.com> writes:
>
> > It can be cut such that it will not show when the Atreus is fully
> > assembled. It doesn't have to be very big. I am not an engineer, but
> > subjectively I don't feel that the strength of the key plate is
> > noticeably compromised.
>
> The problem here is that while any individual board might feel strong
> enough with the cut in it, there's enough natural variation in the wood
> itself that what works for one could cause problems with others. It's
> not a uniformly predictable material like plastic.
>
> > I agree that cutting such a hole when the controller is in place is a
> > risky op eration, but not having access to the controller can be a
> > problem for the newbie solderers like me. I suggest that a designed
> > hole could be put into the key plate to access the controller after
> > assembly. I think it would do more good than harm.
>
> I'm actually considering changing the design so that the PCB is
> upside-down from the current layout, which would leave the controller
> exposed after construction. Some folks have done this by accident (it's
> easy to adapt the firmware to compensate) without much trouble, so once
> I get a chance to build a couple this way I may change the guide to
> recommend doing this by default as long as there aren't any problems
> with the spacing constraints.
>
> -Phil
>

Re: [atreus] Hole in the Keyplate

From:
Eduardo Dominguez
Date:
2015-08-13 @ 21:24
Lance,

 you can check the diagrams and use those to check to what pin they connect
and test/resolder that one.

 Thats what I did. In my case it was a whole column, IIRC.

On Thu, Aug 13, 2015 at 4:00 PM Lance Wicks <judocoach@gmail.com> wrote:

> Hi all,
> so after about 90 minutes of failing to make progress unsoldering switches
> I went for "keyhole surgery".
> Starting slightly to the right off the controller I hand drilled a whole
> through the wood. Then carefully cut back to expose pins 1-3.
>
> Using the solder sucker I cleared pin 3.
> Then put a diode leg right through both holes and soldered both sides.
> :-)
>
> Sadly, still no response from the bottom row (except sw5:0).
>
> Thoughts? Any ideas on how to diagnose where the fault is?
>
> Lance
>
> On Thu, Aug 13, 2015 at 3:34 PM, Phil Hagelberg <phil@hagelb.org> wrote:
>
> Joe Schon bok <joebok@gmail.com> writes:
>>
>> > It can be cut such that it will not show when the Atreus is fully
>> > assembled. It doesn't have to be very big. I am not an engineer, but
>> > subjectively I don't feel that the strength of the key plate is
>> > noticeably compromised.
>>
>> The problem here is that while any individual board might feel strong
>> enough with the cut in it, there's enough natural variation in the wood
>> itself that what works for one could cause problems with others. It's
>> not a uniformly predictable material like plastic.
>>
>> > I agree that cutting such a hole when the controller is in place is a
>> > risky op eration, but not having access to the controller can be a
>> > problem for the newbie solderers like me. I suggest that a designed
>> > hole could be put into the key plate to access the controller after
>> > assembly. I think it would do more good than harm.
>>
>> I'm actually considering changing the design so that the PCB is
>> upside-down from the current layout, which would leave the controller
>> exposed after construction. Some folks have done this by accident (it's
>> easy to adapt the firmware to compensate) without much trouble, so once
>> I get a chance to build a couple this way I may change the guide to
>> recommend doing this by default as long as there aren't any problems
>> with the spacing constraints.
>>
>> -Phil
>>
>

Re: [atreus] Hole in the Keyplate

From:
Eduardo Dominguez
Date:
2015-08-13 @ 14:24
As someone that had to cut The Hole, it would be awesome if that was an
option. It could be an add-on, suitable to those newbies like me that are
most likely to make mistakes.

On Thu, Aug 13, 2015 at 8:17 AM Joe Schonbok <joebok@gmail.com> wrote:

> It's come up a few times in the last several months - accessing the
> controller after the switches have been soldered in place.  I have
> advocated cutting a hole in the switch plate as an alternative to
> desoldering all the switches.  I've put up a couple photos of what I did:
>
> https://www.dropbox.com/s/nxxusvo218o1o8m/AtreusWithHole.JPG?dl=0
> https://www.dropbox.com/s/pbej9f2ulsproll/AtreusHoleCloseup.JPG?dl=0
>
> It can be cut such that it will not show when the Atreus is fully
> assembled.  It doesn't have to be very big.  I am not an engineer, but
> subjectively I don't feel that the strength of the key plate is noticeably
> compromised.
>
> I agree that cutting such a hole when the controller is in place is a
> risky op eration, but not having access to the controller can be a problem
> for the newbie solderers like me.  I suggest that a designed hole could be
> put into the key plate to access the controller after assembly.  I think it
> would do more good than harm.
>
> Anyway, I'm loving my Atreus!
>
> Joe
>