DPaul
Posts: 97
Joined: Fri Oct 13, 2017 7:39 am

Housing problem

Sun Nov 04, 2018 8:05 am

Hi,

My project is finished (electronics + python) , it should look like a cross between a TV remote and a numeric keypad.

The problem is , that i cannot find an elegant housing or "box", to assemble it in, so that is does not look like a car wreck.
The biggest showstopper is the 3x4 matrix keypad (either telephone style of flexible model).

My requirements are:
- must house a pi zero w
- must have room for some small extra's (wires, 2 led lights)
- most importantly, should be transparent (at the very least the faceplate)
- elegant way to attach some type of 3x4 matrix to the faceplate.

Where do i find this type of product, or inversely, what assembly route should i take if a 4x3 matrix needs to be attached.
I find almost no examples where such a thing is integrated.
Especially the telephone style matrix has very rigid connectors that take up a huge amount of space, very awkward.

thx,
Paul

Andyroo

Re: Housing problem

Sun Nov 04, 2018 9:34 pm

Do you have a link / picture and sizes of the matrix?

Without that we are a bit stuck to help...

DPaul
Posts: 97
Joined: Fri Oct 13, 2017 7:39 am

Re: Housing problem

Mon Nov 05, 2018 7:22 am

OK, stupid of me, should have done that right away:

Telephone style = credit card size, awkward pins on the rear
https://www.kiwi-electronics.nl/3x4-pho ... ption=true

Flexible = a bit wider
https://www.kiwi-electronics.nl/3x4-fle ... rix-keypad

I did consider to replace these with an LCD touchscreen, and there are bespoke faceplates for 2.8" LCD's, but as i need many terminals,
the cost factor kicks in.

thx,
Paul

hippy
Posts: 6686
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Housing problem

Mon Nov 05, 2018 12:53 pm

DPaul wrote:
Sun Nov 04, 2018 8:05 am
The problem is , that i cannot find an elegant housing or "box", to assemble it in, so that is does not look like a car wreck.
It seems to me that this is where 3D printers are the answer. Either that or hand crafting the same end result, or commissioning someone to do that for you.

DPaul
Posts: 97
Joined: Fri Oct 13, 2017 7:39 am

Re: Housing problem

Mon Nov 05, 2018 3:45 pm

I have no experience with 3D printing, but i am wary about costs.
Also unsure if you can print "transparent" stuff ?

Paul

Andyroo

Re: Housing problem

Mon Nov 05, 2018 4:16 pm

Given the size of those keys I get the feeling you are going to have a painful time unless others here have done it.

How about using a laser cutter to make a top for a suitable box or even creating an MDF box (again with a laser cutters) and adding a laser cut clear top? You would have to make sure the 'plastic' can be cut this way - some can, some kill you :lol:

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