On Fri, 03 Feb 2017 21:37:46 -0800, Surge wrote:
> I used single side, copper clad, FR4 PC board soldered together to make
> the case. Don't do this unless you like to itch and make all your tools
> blunt! In hindsight an aluminium case may cost more and be a bit more
> difficult to manufacture but it would be better than working with FR4
> board and look more professional to boot.
>
That sounds good to me. I've made up a number of bits for my Libelle
this way, though I use epoxy (24 hour Araldite) rather than solder to
join the boards. Here's a description and photos of a replacement battery
box lid that also serves as a logger mounting:
http://www.gregorie.org/gliding/libelle/battery_lid.html
The main platform is a sandwich of 1.6mm epoxy board top and bottom with
3mm balsa in the middle so its a sort-of mix&match with my Libelle, which
has balsa wing skins.
I've also used epoxyboard to build the adapters you need to attach a PNA's
mounting clip to a RAM flexi-mount and to make a latching mechanism to
clip a Glassfaser 'bum bag' onto the Libelle's wing assembly lever
attachment points.
If you don't want copper-clad epoxy-board, plain epoxyboard is readily
available as model building material in a variety of thicknesses from
0.2mm to 6mm (1/128" to 1/4"). Copper clad PCB is typically 1.6mm or
0.8mm. I think no workshop is complete without some of this in the supply
cupboard. I normally use 0.4, 0.8 and 1.6mm sheet.
In the UK I get epoxyboard from HobbyPlastic,
http://www.hobbyplastic.co.uk/ but in the USA I'd use Aerospace Composite
Products,
http://www.acp-composites.com/ if the local model shop doesn't
stock it.
--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |