A little off topic but 3D printer showed up a few days ago and still getting it all figured out building the kids toys and helpful little tools, but planning to solve some of my challenges with the printer over the next few weeks.
Fish bones? You're gonna print your own fish bones?
@BrendanH69 what dremel bit were you using for slot cutting on your body tube? Unless my wife is cool with me buying a router tomorrow I think I’m moving forward on the dremel path, even if it requires some cleanup work.
@BrendanH69 what dremel bit were you using for slot cutting on your body tube? Unless my wife is cool with me buying a router tomorrow I think I’m moving forward on the dremel path, even if it requires some cleanup work.
What were you using for an ignitor?I noted a significant delay in ignition, roughly 1-2 seconds from button press
Yikes! Did the table escape unscathed?Spider prototype test #1 happened today, and well...I have some challenges
What were you using for an ignitor?
Yikes! Did the table escape unscathed?
Spider prototype test #1 happened today, and well...I have some challenges to overcome.
I finalized dart design details tonight and made some more progress on SN1.
Significant added mass required in nosecone to bring static stability to 0.75cal, which is the lowest I'm comfortable with in light winds until I know more about the behavior.
I finalized dart design details tonight and made some more progress on SN1.
View attachment 456061
Significant added mass required in nosecone to bring static stability to 0.75cal, which is the lowest I'm comfortable with in light winds...
Hi Drew, although we don't have much in the way of proper dimensions for the Darts, the photos we do have, seem to show a longer root chord and longer tip chord for the fins. In the end, its a bit of a trade off as the greater fin weight will pull the CG aft as much as the larger surface area might move the CP a little further aft too. I've included a screen shot of my OR file for my Dart design.
At the same time, materials for my wind tunnel (about 2000 straws) just showed up. Planning to mount them in a long cardboard box for laminar flow and measure spin rates vs. air speed. Though that project probably wont be done until after my next launch.
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