Originally Posted by
olnico
100% agree with you on Chinese ply. This is why we use aero grade Finnish birch ply. Millions of miles away in terms of quality...
Yep, the purpose of this test is mostly for comparison.
However this is also relevant to what we experience on the airframe we sell. The Mibo A-10 is using above ply/ glassfiber laminated servo hatches and we glue our PYCABS servo brackets or the original Mibo plywood servo bracket on them. In fact lots of the kits we sell use this technique and it is very relevant for me and for all further designs to have a precise idea of glue joints resistance.
I have two large model kits being designed right now and these will use the same technique. I have a resistance module in the CAD software I use and I need that data to implement glue joint resistance in the assembly of these models...
Using aircraft grade ply, you can use a thinner ply as well which also saves weight.
In regards to CA versus epoxy for servo mounts, (I always use epoxy), it may be surprising as to how well CA would work with correct materials and preparation. Looking forward to that test.