Yo PSAS, Here’re a few updates and things we need to do for the airframe. Stuff that needs action from people is in *bold*. Noseconey Things
On Friday, the propellant tank team helped demold the nosecone Adam and I laid up earlier in the week. The seam between the half shells wasn’t fully wetted with epoxy and the halves were misaligned, so it’s not a flyable nosecone. *I would like to review the process and results with Adam.* I think we can fix the problems with something like the following: - Layup each half shell normally, leaving the flange dry. - Vacuum bag each half shell. - Unbag and demold each half shell. - Wet the flanges with epoxy. - Align and clamp the shells. - Smooth over the flanges. Fin-Cany Things We have *almost* everything we need to make a fin can. brackets We need to make some more brackets. Adam and I know how to do this. Andrew expressed an interest in learning how to make brackets, so *perhaps one of us can outsource some bracket making to him or someone*. It’s relatively straight forward if you’ve seen someone do it and been told what the gotchas are. sanding We need to sand one of the adhesive-surfaced modules. We have a contraption for that. To use it, we need to 3D print a variant of the spider. I already sent an email to the LID mailing list, but *if someone wants to check if it’s on the queue, that’d be great. If it’s not, please add it. We need two of them.* The relevant info for the print is as follows: Parameter Value File: STL <https://github.com/psas/lv3.0-airframe/blob/master/cad/finCan/fatSpider.STL> Extents: 6.0 inches in diameter and 0.55 inches tall Units: inches Printer: Ultimaker 3 or Ultimaker 2 Color: don’t care Infill: 20% *Wall thickness*: *3 layers* Detail: 2/5 (like 0.2 or 0.3 mm; doesn’t matter too much)
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