"Nice project! I have a few questions:
1) Why orient the Pi vertically? That fuselage is going to add a great deal of drag to the system. Wouldn't it be better to rotate that 90 degrees? Also, it might be a good idea to think about allowing extra…"

"I should start by mentioning a slight bias -- I work in airframes manufactured using SLS/Composites.

I think the comments indicate that members of this community are taking a rather myopic view of this post. I think this is great. Does Shapeway's…"

"Hey Andreas,
Sorry about that, it appears there were some issues with the email server. Thanks for bringing it to my attention. Can you give me a try and let me know if it works?"

"Great work! Do you have any thoughts on the reliability of the 18650 cells-in-a-tube concept? I have some Samsung INR-18650-25R cells that I'm trying to work into a propulsion unit. This looks like a really slick approach. "

"Dead here too. Perhaps they're just running a few minutes behind? "

"The noise seems quite high in the motor torque direction. Can you elaborate on how you make the measurements? A little smoothing may help the plot. Also, I assume these are static tests? Would it be possible to mathematically model an estimate of…"

"Could you elaborate a bit on your objection to pitch stability? I think if the geometry is designed properly, mass transfer should work for pitch."

"Nice idea! I'm working on something similar for pitch trim. I have an empty carbon tube between the fuselage and the empennage of an aircraft design I'm working on. The tube diameter is large enough to house 18650 cells and a small linear actuator…"

"Anderl, 
Thanks for the comment! I hope to expand on droneCFD to make it even more useful to sUAS designers. I would like to get to the point where OpenFOAM simulations can be used not only for aircraft design, but also for motor selection, accurate…"

"Navier-Stokes CFD simulations are quite lengthy, so it isn't a specific problem with this software. However, I feel your pain. The reason why you would choose this type of simulation is to work out an estimate of parasitic drag for the geometry. The…"

"Hey Eli, 
Nice work! What was the most significant limitation of using additive manufacturing to fabricate an aircraft? Is there a reason the team decided on a 'traditional' wing design (ribs and spars) over something that might exploit the benefits…"

"@Andrew -- I assume these cells are roll-to-roll printed, so no. If you built a bespoke inkjet system, perhaps, but its still tricky. However, you could just mould these into the wing. Alta solar claims it's possible to use a clear gelcoat as an…"

"I think shane.sanford is dead on about how this fits into the existing AP system. The one thing that I'll add is that the interfacing legwork is done. You have Mavlink and ROS for any and all communications between a Raspberry PI type board and the…"

"I'm surprised this didn't get more attention from this community. I see this type of processor as being critical to the Arduplane/Arducopter platforms in the fairly near future. This isn't a platform to replace the low-level control, but instead,…"