Aluminium case

[jessp01]

Hello all,

I was thinking of using the https://github.com/Open-Smartwatch/3d-files/tree/master/case-light-1.6mm-pcb-20mm-straps STLs to produce an aluminium case but I am a bit concerned about it interfering with the BT and WIFI signals.
Of course, many smartwatch cases have parts made of aluminium/stainless steel but the bottom is typically made of a different material (ABS/plastic).

I suppose I have a two part question:

• Assuming I take the above design as is and produce all parts using aluminium, do you reckon it will interfere with the signal?
• If so, has anyone created a different design where the top frame and sides are separate (and can therefore be made of aluminium) from the bottom (that can be made of a different material that will not interfere with the signal)? Such a design will also be less expensive to produce..

Thanks in advance for any pointers,