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Argh. the version up there is 1/70. I don't know what I was thinking when I typed 1/100!

Years late, I know, but just did this through paper tube and styrene nose cone, and this bit works great for 2-56 nylon screws used as shear pins, without tapping these materials.

Good question, thanks! SoAR, the sponsoring group is NAR section 571, and the event will take place under NAR rules. Per usual, Tripoli certifications will be recognized, though those flyers will still need to fly under NAR rules. (I'm sure there are other fine points, but generally, no...

A reminder that AirBnB is also an option.

A note for folks who are on the fence about attending: it's time to register and get your lodging now. Competing special events in the area are causing hotels to start to fill and rates to rise across the board. Register today at https://gritslaunch.com/ - many Tifton hotels are listed on the...

Looking at your ORK file - a tip for you: Your visual of the design will be a little more comprehensible to you and others if you choose a "Mass type" in the General tab of your mass components which is close to the type of mass you're including. (Here I've picked Flight Computer instead of...

Andrew, are you on-track for the Annular eclipse (this Saturday, I think...)?

Couple corrections to vendor list: see quote above.

I think those are very good. The color text next to them looks a little weeny to me, though. Maybe make text #080807 or darker but bold or semibold. Implementation details, I realize.

I generally like where it's going, but warn against indicating anything with color alone: the red text, for example. In the US, 1 in 12 men of European ancestry have a color vision deficiency (I'm in that cohort, BTW: can't tell red text from black text unless very light red or very bold text)...

Come fly with us in Nashville, GA (Near Tifton). New event weekend: November 18-19 2023 Register today and get more details at https://gritslaunch.com/ Two-day family registration: $35, single days $25. Non-flying spectators always free. GRITS 2023 offers: A 12,000 foot AGL altitude waiver A...

Wow, thanks @jadebox - what an embarrassing mistake! Fixed now. PM me and I'll put you in touch with folks who can help with vendor attendance.

For those who haven't yet heard, GRITS registration is now OPEN! GRITS - Georgia Rockets In The Sky - will be held November 18-19 in Nashville, Georgia (near Tifton). https://gritslaunch.com/ Yep, the unfortunate loss of Roy Green gave the web sites fits for a while, but we've got...

That LES Tower Assembly jig for the 1/100 SEMROC LES tower has been moved to Printables: SEMROC 1/100 LES Tower Assembly jig

FYI, if anyone is still interested in the bayonet-mount nozzle plate, I've re-hosted it at Printables (because YouMagine is on uncertain ground right now...). The file is the same, and you can find it at...

I've been using John Coker's FoodSaver method for a few years on little and medium-big rockets. Works great, adds little weight. 3/4 oz (or 1/2 oz if you can find it) fiberglass adds tremendous strength but little weight for small rocket fins. You do have to consider that you're stiffening fins...

Enclosed: my OpenRocket file (for current OpenRocket beta 22.02.beta.04 and later) of my X-15 as built. A few things: Not yet flight tested against this set of sims. Will try to remember to follow up after flying. My build is heavy: 180g heavier than the RockSim model. Weigh yours as you go...

I did a fiberglass wrap of the last 1/2 inch of the motor mount tube, to give a surface that would withstand repeated tape removal. I vacuum bagged with an old DMS motor casing as a mandrel (sparing you the details of the process), but it only came out so-so. It'll function, and it's light...

I'm building mine now, and I applied and sanded one layer of CWF, then fiberglassed the balsa parts with 1 layer of 3/4oz fabric, West System epoxy as the resin, vacuum-bagging each fin (with a food -grade vacuum sealer and Teflon-coated release and polyester absorbent from Aircraft Spruce)...

@cwbullet any help on my 3 questions?