What did you do rocket wise today?

Onebadhawk
rocket sok
eggtimer rocketry
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While cleaning my home office, I found a Baby Bertha that had fallen behind my desk. It's nearly ready, just needs a chute attached. Apparently I started building this in 2014! Five years to finish a Baby Bertha. :D
 
The wind is howling outside my window as I write this.
It was a cold, dark, windy ni...
Never mind.
The past few days have been wet and blustery here. Unable to mow the lawn or do any yardwork.
Or launch rockets.
It's been cleaning, vacuuming, laundry,.....
And building rockets.
Finished assembly and got some CWF on the Big Bessie, SLS Explorer clone, Boyce MR, and Resistor 224.
0104200246.jpg 0107201533.jpg 0107201551.jpg 0107201545.jpg
And dry fitted a Mac Performance 54mm Black Fly:
0104200242.jpg
Builders kit. Chute, launch guides, and motor retainer not included.
Pinnacle nose cone, 3D printed boat tail and a nice flat braided Kevlar leader attached to the forward centering ring with a steel pin are included. Phenolic fins(5) and pre-slotted airframe. Quality parts, fit is perfect.
My first phenolic rocket. Yes, I am a phenolic virgin.
Paint scheme will be all gloss black with white vinyl.
Vinyl is on its way from Stickershock.
My heart is palpitating.
Is it hot in here?
Time to take a cold shower.
Bye.
 
Gluing together the Silver Hawk II and the Lark. I wonder where I got those names from? Worse yet, I have a couple of general purpose pop-pods nicknamed the 7045 and the One-Ninety XT.... I went to OMG and used their laser cutter. I cut out fins for a slotted boat-tail Winnie and wings and tail for a Mediocre Fred. For inspired "I should know better, but I don't": I cut out wings for 150% and 200% Zoomies. =:eek:
 
So I have a Lark, Silver Hawk II, Scarab, Delta-Katt clone, and a Mini-Dactyl clone in the pipeline. They're all 13mm A engine BGs, but I'm wondering why the Katt and Dactyl are so small compared to my designs? I'm guessing that mine were designed around the old MIT glider sizing guides while the old gliders were by eyeball or what seemed intuitive.
 
I counted up all the spare parts I've accumulated from building eggtimer kits (@cerving ):
0805 resistors
3x102
3x103
1x222
3x223
2x472
0805 caps
3x0.1uf
1206 resistors
4x102
4x103
3x104
6x223
2x331
4x472
1206 caps
3x10uf
3x1uf
4x0.1uf

1x 227 optoisolator
3x 2303 FET
1x 3.3 V Regulator
3x buzzers
2x thru hole resistors
5x packs of solder

Cris - I think you need a solder free kit option :)
 
kuririn said:
The past few days have been wet and blustery here. Unable to mow the lawn or do any yardwork.
Click to expand...
So, in the dead of winter, you're troubled because you can't do yard work. My heart bleeds for you.
Finished assembly and got some CWF on the... Resistor 224.
Click to expand...
May I suggest:
upload_2020-1-8_12-14-34.png

As for myself, I received the previously mentioned Apogee order, dry fit the Triple Vee nose cone that mbeels made for me (it'll need tape for a snug fit), and updated the model for the Park Flyer Magnum with the Aeropack retainer.
 
jqavins said:
So, in the dead of winter, you're troubled because you can't do yard work. My heart bleeds for you.
Click to expand...
Likelihood of @kuririn getting any climate-related sympathy:
tenor.gif
 
Finally finished all eggtimer electronics, today i finished eggtimer proton , and assembled 2s 600mah battery , so probably will be testing tomorrow, since having 2.5months old girl means not having a lot of free time. Next is building some rockets for testing all the electronics i bought.IMG_20200108_201359.jpg IMG_20200108_195250.jpg
 
I got up the nerve to start rebuilding my spudnik. It's a rocket I made from a Mr. Potato Head on a dare from an engineering student in his Junior year who stated it couldn't be done. The rocket is over 20 years old and needed the shock cord stripped and surgery to open the body shell to fix two wobbly legs/antenna. The surgery was a success so tomorrow I'll do the fix , take some pictures and get on with replacing parts that have gone AWOL since it was flown last.
 
mbeels said:
Nice, how about a tolerance stripe?
Click to expand...
I left it out because it depends on how precisely kuririn did the build.
kuririn said:
Thanks Neil. Learn some thing new every day.
Click to expand...
In case you haven't picked up on all the details, since the rocket is called "Resistor 224", the stripes say 224. (Which is 220 kΩ, which is actually a standard resistor value, but that's beside the point.)


DuaneW said:
I got up the nerve to start rebuilding my spudnik. It's a rocket I made from a Mr. Potato Head...
Click to expand...
LOL. (And I never write that unless I mean it literally. And I never say "literally" unless I... You get the idea.)
 
Finished my Arapahoe E upscale the Arapahoe I, it only took 2 years. Nose cone is a recycle from an Estes Big Daddy or Leviathan that I bought at a Tripoli Vegas yard sale on TRF a while back, the tailcone is a PNC-300K from Balsa Machining, airframe is T300-34 from BMS (actually all parts are either Estes or BMS). The rocket is built dual deploy, and the fins are lightweight laminate of 1/8" baltic birch with 1/16" balsa skins, papered and rounded. 29mmt and the mmt tube is just about the exact same length as a AT 29/360. All vinyl (black lettering, stripes, and pieces and white Thunderbirds) was cut on my wifes Cricut.20200109_181024.jpeg20200109_180859.jpeg
 

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