No, was planning to keep them square. Not sure which way would look better, so I took the simpler route.Are you going to chamfer trim the aft end of the side tubes at an angle to be even with the trailing edge of the fins?
That probably would have been helpful. I could still do it just to stiffen them up a bit, although once mounted with the fins going through them they should be adequately supported.Now you got me. If it were mine, I'd coat the inside of the tubes with CA. This is no threat to the outside surface.
The shrouds aren't being cut, just the tubes. I am expecting that the fuzzy edges will be adequately covered by fillets in the end. All of the edges that will be exposed are clean, and will be CA-coated.Both shrouds would have been treated all over prior to any cutting as it makes both tube edges and slots way more manageable / sandable. And you won't have fuzzy edges when you sand them
It's hard to convey without actually holding the parts in your hands, but I'm pretty sure that won't work. What I do plan to do, though, is to dry-fit the fins in place while gluing the warp tubes, so I am hoping to get *some* of the benefit of what you're suggesting. That's going to be an adventure, I'm sure.What about attaching the fins to the the warp tubes first, then using the jig you just made to align those subassemblies around the main tube?
I am pleased that I have hoodwinked you into believing that.You really move fast once you've got things started
Hmm, might just try that if I can be confident of positioning the pieces correctly.Suggestion for both alignment and ease and strength of your body tube to body tube attachments.
On your main/core/central tubes mark the attachment lines for your BT5s. Get some 1/16” balsa, cut 1/16” wide lengths (I guess you could call them strakes). Glue these in place just inside your marker lines for the BT5 attachments. Because they are small and light, they will attach easily.
Then when you go to attach your BT5s, they will line up in exactly the right place, and the strakes provide a larger surface area for bonding.
True, but for this purpose why bother? Assuming the BT5s are 6” long, easy enough to take a 6” piece of 1/16” balsa and cut 6 strips (2 for each BT5) each 1/16” wide (you can be off as much as another 1/8”, all that matters is that on each strip at least ONE side is perfectly straight.) line the straight edge of the balsa along the INSIDE edge of your marker linesYou can get 1/16 square stock at the better hobby shops.