I know, I should hold off on this update until I've actually begun carving apart the 8' length of CFRP square tube sitting in my office. But I'm not going to get started on that until tomorrow, so I figured I'd post a quick update.

Lots of changes to the model; enough that I rolled everything into v09. Most things look the same unless you look closely, but a lot of dimensions changed slightly so it was a fairly lengthy process.

The picture above shows the measured diameter of the bright green prop stand-in disks: 254mm, or 10". Changes with v09:

• I tweaked the dimensions of the square tubing stock to reflect the stock I received earlier this week. Specifically, I had it in the model as 19x19 mm; in reality, it's more like 23x23 mm. I would have known this if I'd read the DragonPlate description a bit more carefully, I suppose. Lots of things were referenced to tube side walls, so this change pretty much affected everything.
• I increased the possible prop size to 10" in case I end up wanting to dial back RPMs (or go crazy with thrust). This actually didn't take much to do; I had to increase the width of the pitch ring, but the length was fine for clearance. That means minimal sub-frame modifications.
• The I-beam is gone, shelved for some future project. It's been replaced with square tubing as discussed in the last update. As part of that change, I also eliminated a few brackets previously needed to attach the beam to the shaft collars.
• I mitered the pitch ring ends, because why not? A bit more surface area for Space Glue, plus it looks better. Gussets provide most of the strength here either way.
• The larger-than-expected tubing had a handy side effect--I was able to get rid of the plate adapters that previously held on the bearings and shaft collars. Less cutting is good.
• Overall, weight didn't change by much; still well under 1.9kg. 

In preparation for the build, I also broke down the sub-assemblies into drawing packets. They're hastily dimensioned and have minimal notes (such as material, tolerance, stuff like that), but they'll make construction a lot easier:

The drawings are located in the same folders as their respective parts (under /hardware/v09); they share names with the parts they represent, minus the file suffix.

Enough stalling. Prototype build starts tomorrow!