What did you do rocket wise today?

Discussion in 'The Watering Hole' started by BeerorKid, Jan 31, 2013.

Help Support The Rocketry Forum by donating:

  1. Oct 20, 2019 #23,281

    mbeels

    mbeels

    mbeels

    Putting the tree in rocketry TRF Supporter

    Joined:
    Feb 9, 2019
    Messages:
    1,006
    Likes Received:
    340
    Gender:
    Male
    True! They're certainly high impulse for a 24mm motor, I meant relative to their average thrust. Not many other options out there for a G150.
     
  2. Oct 20, 2019 #23,282

    Nytrunner

    Nytrunner

    Nytrunner

    Master of Rivets

    Joined:
    Oct 15, 2016
    Messages:
    5,264
    Likes Received:
    1,144
    Gender:
    Male
    Location:
    Huntsville AL
    15716089078043759494488347103481.jpg Need to consider paint jobs that use common colors... my closet is beginning to look like a rainbow
     
  3. Oct 21, 2019 #23,283

    Charles_McG

    Charles_McG

    Charles_McG

    Ciderwright

    Joined:
    Sep 12, 2013
    Messages:
    2,146
    Likes Received:
    316
    Location:
    SE Wisconsin
    Finished up painting the Tomahawk-12 I built to replace the one that drifted away.

    Pictured next to the Tomahawk-9 I built after the first one CATO’d on a G33

    IMG_1323.jpg
     
  4. Oct 21, 2019 #23,284

    neil_w

    neil_w

    neil_w

    When in doubt, add more rocket TRF Supporter

    Joined:
    Jul 14, 2015
    Messages:
    6,681
    Likes Received:
    982
    Location:
    Northern NJ
    Wouldn't it be cool to share paint with another builder?

    Anyway, what exactly are those camouflage paints? I haven't noticed those in the store before.
     
  5. Oct 21, 2019 #23,285

    mbeels

    mbeels

    mbeels

    Putting the tree in rocketry TRF Supporter

    Joined:
    Feb 9, 2019
    Messages:
    1,006
    Likes Received:
    340
    Gender:
    Male
    That's a good idea. I have a shelf full of paints, but it's more fun to pick out new colors.... I wonder if it work to trade partially used cans, but it isn't always easy to know how much is left.
     
  6. Oct 21, 2019 #23,286

    neil_w

    neil_w

    neil_w

    When in doubt, add more rocket TRF Supporter

    Joined:
    Jul 14, 2015
    Messages:
    6,681
    Likes Received:
    982
    Location:
    Northern NJ
    I think it would work fine but you'd need to have someone pretty nearby to make it worth it (I think)
     
  7. Oct 21, 2019 #23,287

    kuririn

    kuririn

    kuririn

    BARGeezer TRF Supporter

    Joined:
    Oct 3, 2016
    Messages:
    2,581
    Likes Received:
    652
    Gender:
    Male
    Location:
    Hawaii
    Home Depot. Look in the specialty paint area. Army green, Earth Brown, Khaki.
    Great for military scale.
    1020191456.jpg
     
  8. Oct 21, 2019 #23,288

    Nytrunner

    Nytrunner

    Nytrunner

    Master of Rivets

    Joined:
    Oct 15, 2016
    Messages:
    5,264
    Likes Received:
    1,144
    Gender:
    Male
    Location:
    Huntsville AL
    They're stocked differently depending on where you are. My local Walmart only has 3 of the camo colors, but one towards the outskirts of town has like....6

    Maybe Alabama has more of a demand for camouflage paint than your zip code :D
     
  9. Oct 21, 2019 #23,289

    kuririn

    kuririn

    kuririn

    BARGeezer TRF Supporter

    Joined:
    Oct 3, 2016
    Messages:
    2,581
    Likes Received:
    652
    Gender:
    Male
    Location:
    Hawaii
    Works much too well in tall grass.:D
     
    Joshua Westbrook likes this.
  10. Oct 21, 2019 #23,290

    mbeels

    mbeels

    mbeels

    Putting the tree in rocketry TRF Supporter

    Joined:
    Feb 9, 2019
    Messages:
    1,006
    Likes Received:
    340
    Gender:
    Male
    True indeed, perhaps it could work to have coordinated exchanges made at rocket launches.
     
    GRS likes this.
  11. Oct 21, 2019 #23,291

    Bungie64

    Bungie64

    Bungie64

    Active Member

    Joined:
    Feb 26, 2017
    Messages:
    38
    Likes Received:
    10
    I like the Last StarFighter theme music!
     
  12. Oct 21, 2019 #23,292

    jqavins

    jqavins

    jqavins

    Joseph Avins TRF Supporter

    Joined:
    Sep 29, 2011
    Messages:
    2,393
    Likes Received:
    477
    Gender:
    Male
    Location:
    Bath, NY
    My sympathies.
    Sure it is! If it's a favorite then it's worth the effort.

    Weigh it. Weigh a full one for reference. If you want to be really precise then weigh an empty also, but the empties are light enough that there isn't much error if you don't.
     
  13. Oct 21, 2019 #23,293

    jeffjblack

    jeffjblack

    jeffjblack

    Well-Known Member

    Joined:
    Oct 28, 2018
    Messages:
    140
    Likes Received:
    33
    Gender:
    Male
    I am developing 3D printed, modular, bolt-on fin cans for model rockets. This is a mashup of rev 1 and rev 2 for BT70, 56mm tubing. Make sure to follow the link in the video description to the files on Thingiverse so you can print your own. I could not quite finish the model in time for last Saturday's SARA Volunteer Launch. So look for it soon, sporting the 4k Action Camera. Stay tuned!

    #3DPrinted #Modular #ModelRocket #FinCan #56mm #BT70
     
    rickus likes this.
  14. Oct 21, 2019 #23,294

    Nytrunner

    Nytrunner

    Nytrunner

    Master of Rivets

    Joined:
    Oct 15, 2016
    Messages:
    5,264
    Likes Received:
    1,144
    Gender:
    Male
    Location:
    Huntsville AL
    Are they just held on via friction when bolted together?
     
  15. Oct 22, 2019 #23,295

    scadaman29325

    scadaman29325

    scadaman29325

    Catching up and tripping all over myself.

    Joined:
    Feb 6, 2004
    Messages:
    262
    Likes Received:
    27
    Gender:
    Male
    Location:
    Clinton, SC
    Helped my grandson put primer on his first build. Trying to teach patience. We work on it about once or twice a week.

    Phil.
     
    Steve Shannon likes this.
  16. Oct 22, 2019 #23,296

    jeffjblack

    jeffjblack

    jeffjblack

    Well-Known Member

    Joined:
    Oct 28, 2018
    Messages:
    140
    Likes Received:
    33
    Gender:
    Male
    The bolts pass through the fin. They are going anywhere without something catastrophic happening. Thanks!
     
  17. Oct 22, 2019 #23,297

    Ed Beauchemin

    Ed Beauchemin

    Ed Beauchemin

    New Member

    Joined:
    Sep 11, 2019
    Messages:
    2
    Likes Received:
    0
    Gender:
    Male
    Finished replacing a section of the tube on my Thunderbird clone after it lawn darted when the parachute didn't open properly 20191018_202507.jpg
     
  18. Oct 22, 2019 #23,298

    tOD

    tOD

    tOD

    Sinking in the quicksand of HPR

    Joined:
    Jul 31, 2018
    Messages:
    290
    Likes Received:
    108
    Gender:
    Male
    Location:
    Pittsburgh, PA
    Worked on the AV bay for the 3" Darkstar. I still have a Quark to build which will be the backup altimeter. I wanted to fit it together to get an idea where the CG might be.
     

    Attached Files:

  19. Oct 22, 2019 #23,299

    BDB

    BDB

    BDB

    Absent Minded Professor

    Joined:
    Aug 22, 2015
    Messages:
    1,934
    Likes Received:
    249
    Gender:
    Male
    Come hell or high water, it will be repaired. I just emailed Mike from Binder Design for a new fin. And since I'll screw up a bunch of paint with the repair, I think it will need a new paint job. Time to order more fishnet stockings from Amazon!
     
    mbeels likes this.
  20. Oct 22, 2019 #23,300

    OverTheTop

    OverTheTop

    OverTheTop

    Forum Supporter TRF Supporter

    Joined:
    Jul 10, 2007
    Messages:
    3,023
    Likes Received:
    614
    Gender:
    Male
    Location:
    Melbourne Australia
    That's something not many blokes would admit to :p.
     
    BDB likes this.
  21. Oct 22, 2019 #23,301

    BDB

    BDB

    BDB

    Absent Minded Professor

    Joined:
    Aug 22, 2015
    Messages:
    1,934
    Likes Received:
    249
    Gender:
    Male
    Pro tip: You have to order XL stockings to fit over that fin can!
     
    OverTheTop likes this.
  22. Oct 22, 2019 #23,302

    neil_w

    neil_w

    neil_w

    When in doubt, add more rocket TRF Supporter

    Joined:
    Jul 14, 2015
    Messages:
    6,681
    Likes Received:
    982
    Location:
    Northern NJ
    I think the question was whether anything connects the fin assembly to the body tube other than friction.
     
    Nytrunner likes this.
  23. Oct 22, 2019 #23,303

    Alan R

    Alan R

    Alan R

    Well-Known Member

    Joined:
    Oct 11, 2018
    Messages:
    68
    Likes Received:
    20
    Location:
    Oregon
    primered a nosecone .. and glued a fin in place and some random other stuff IMG_20191021_083825403.jpg
     
  24. Oct 22, 2019 #23,304

    Ben Martin

    Ben Martin

    Ben Martin

    "That guy in the hall building a rocket" TRF Supporter

    Joined:
    Sep 29, 2018
    Messages:
    655
    Likes Received:
    197
    Gender:
    Male
    Location:
    Texas
    The video shows that there are tabs that go in between the centering rings that hold the fins to the body tube while locking the centering rings into place. Pretty cool idea but I'm sure it comes at a mass penalty with the metal screws and a lot of 3D printed material.
     
  25. Oct 22, 2019 #23,305

    jeffjblack

    jeffjblack

    jeffjblack

    Well-Known Member

    Joined:
    Oct 28, 2018
    Messages:
    140
    Likes Received:
    33
    Gender:
    Male
    There are eight brackets that have a tang that is passed through each of eight slots in the body tube that both anchor the fin can and secure the motor mount. I made a video so I wouldn't have to write a book. Please watch it then ask any remaining questions you might have.
     
  26. Oct 22, 2019 #23,306

    neil_w

    neil_w

    neil_w

    When in doubt, add more rocket TRF Supporter

    Joined:
    Jul 14, 2015
    Messages:
    6,681
    Likes Received:
    982
    Location:
    Northern NJ
    Sorry, didn’t even notice that was a video. Just watched it, quite interesting.
     
  27. Oct 22, 2019 #23,307

    SteveNeill

    SteveNeill

    SteveNeill

    SNG Studio Ventura TRF Supporter

    Joined:
    Aug 17, 2019
    Messages:
    353
    Likes Received:
    194
    Gender:
    Male
    Location:
    Ventura CA
    A bit more work on the Conquest. Molds for model kit parts. V-2, Delta X-15, Rocket Rider, V-23, and a bit more work on the master for the epoxy glass version of the X-15 delta. Sand and fill. Soon panel lines details and then the mold in epoxy glass. Rockets all day long.
     

    Attached Files:

  28. Oct 23, 2019 #23,308

    Wayco

    Wayco

    Wayco

    Desert Rat Rocketeer TRF Lifetime Supporter

    Joined:
    Mar 23, 2011
    Messages:
    3,320
    Likes Received:
    189
    Location:
    Goodyear, AZ
    Cleaned the motor casings we used at the TRA/PHX launch. First launch of the season for us, named "Aguila Skies". Flew "Tweety Bird" on the LOKI M1378 in the center MMT, with two J430's airstarting immediately, then two J250 Skidmarks three seconds later. Great flight to over 8000 ft.
    The Loki 54/4000 casing cleaned up really easy, with the liner sliding right out:

    [​IMG]
    Forward end was a little roasted, but all in one piece.

    The composite nozzle survived quite well, with some loss of material around the graphite, but very little loss in the center. .678" prior to firing, and .680 after.

    [​IMG]
    [​IMG]
    [​IMG]

    Also cleaned up the four CTI 2 grain casings in about 15 minutes. Then tackled Sharon's 76/6000 casing. She flew her 4" Punisher "Cuddle monster" to 17,000 ft. using our "Not Your Wimpy Red" formula. Another easy cleaning case.
    Then I was looking around for the 54 6XL casing I used for the L935 Imax that flew in the booster of
    "CJ's 2 stage" but I must have left it in the trailer, so I'll be cleaning it Thursday when we bring the toy hauler back here to pack for the next launch. The two stage flight hit almost 21,000 ft. with the L935 in the booster and a CTI K261 long burn in the sustainer.
    Last up was the night flight of "Warp Core Breach" flying on a CTI 38 6XL J520 Skidmark. Got 2600 ft. and a long recovery due to some 20 mph winds just off the surface. Those 38's are really easy to clean too.
     
  29. Oct 23, 2019 #23,309

    Bruiser

    Bruiser

    Bruiser

    Well-Known Member

    Joined:
    Jun 7, 2018
    Messages:
    742
    Likes Received:
    138
    Yesterday was my birthday and my wife picked this off my wish list as my birthday gift :)

    Cosmic Interceptor.jpg

    I have another Cosmic interceptor kit so this one might be used to create an Interceptor E since they have climbed so high...

    -Bob
     
  30. Oct 23, 2019 #23,310

    kuririn

    kuririn

    kuririn

    BARGeezer TRF Supporter

    Joined:
    Oct 3, 2016
    Messages:
    2,581
    Likes Received:
    652
    Gender:
    Male
    Location:
    Hawaii
    Happy birthday, Bob.
    Mine's was on the 21st.
    I now qualify for Medicare.
    Just in time (;))
     
    MarcoPolo and Greg Furtman like this.

Share This Page