QCC Explorer

Discussion in 'Low Power Rocketry (LPR)' started by beantownJPL, Nov 18, 2019.

Help Support The Rocketry Forum by donating:

  1. Nov 18, 2019 #1

    beantownJPL

    beantownJPL

    beantownJPL

    Up up and away... Wait! Come back! TRF Supporter

    Joined:
    Jul 8, 2019
    Messages:
    155
    Likes Received:
    53
    Gender:
    Male
    Location:
    Massachusetts
    I've got an Estes QCC Explorer on the bench right now. This build is scratching my balsa airplane building itch with the built up balsa faux intakes.

    The faux intakes are a little more complex than your typical 4FNC build, but the laser cutting is very clean, and it all locks in together. So long as you manage to not glue yourself you the parts (too many times), they go together very easily.

    The assembled intake pods with the fins is a very strong structure. That coupled with the clipped delta fin shape should make for a very robust airframe. I'll attach them with 30 minute epoxy (what I got ... Would use 5 min), and they should survive many rough landings.

    After assembly, I skim coated then in glazing putty (automotive stuff), and then sanded to shape. Really liking how the glazing putty fills the grain.

    IMG_20191117_215728.jpeg IMG_20191117_235759.jpeg IMG_20191117_235853.jpeg
     
    Bill S likes this.
  2. Nov 18, 2019 #2

    Nytrunner

    Nytrunner

    Nytrunner

    Master of Rivets

    Joined:
    Oct 15, 2016
    Messages:
    5,278
    Likes Received:
    1,156
    Gender:
    Male
    Location:
    Huntsville AL
    Love that Rocket, it's one of my favorites (pic below)! Great lines, doesn't go out of sight, can take punchier motors, etc..

    You should look up Nick@Jet's Ultimate QCC Level 3 build!

    [​IMG]
     
    Tyler P, Lugnut56 and beantownJPL like this.
  3. Nov 28, 2019 #3

    readytorock556

    readytorock556

    readytorock556

    Well-Known Member

    Joined:
    Nov 21, 2010
    Messages:
    58
    Likes Received:
    35
    I finished the airframe a couple months ago but she still needs paint. It’s a cool build for sure.
     
    Tyler P likes this.
  4. Nov 28, 2019 #4

    mbeels

    mbeels

    mbeels

    Putting the tree in rocketry TRF Supporter

    Joined:
    Feb 9, 2019
    Messages:
    1,020
    Likes Received:
    345
    Gender:
    Male
    Nytrunner, Tyler P and beantownJPL like this.
  5. Nov 28, 2019 #5

    beantownJPL

    beantownJPL

    beantownJPL

    Up up and away... Wait! Come back! TRF Supporter

    Joined:
    Jul 8, 2019
    Messages:
    155
    Likes Received:
    53
    Gender:
    Male
    Location:
    Massachusetts
    I've been a little busy, but got some bench time this evening.

    Filling, shaping and sanding is completed for the pods, and first coat of primer applied. I think it's a lot easier to do the shaping and sanding before attaching the pods. There's a lot of angles there!

    I used automotive glazing putty to seal the grain, level the surface and build fillets. I think it looks pretty nice. The glazing putty is very nice to work with a gloved finger.

    IMG_20191127_235855.jpeg IMG_20191127_235950.jpeg IMG_20191128_001541.jpeg IMG_20191128_001607_Bokeh.jpeg IMG_20191128_001616_Bokeh.jpeg
     
    Last edited: Nov 28, 2019
    Tyler P and BABAR like this.
  6. Nov 28, 2019 #6

    beantownJPL

    beantownJPL

    beantownJPL

    Up up and away... Wait! Come back! TRF Supporter

    Joined:
    Jul 8, 2019
    Messages:
    155
    Likes Received:
    53
    Gender:
    Male
    Location:
    Massachusetts
    That's a really great shot. What motor?
     
    Tyler P likes this.
  7. Nov 28, 2019 #7

    Lugnut56

    Lugnut56

    Lugnut56

    What, me worry?

    Joined:
    Apr 7, 2015
    Messages:
    510
    Likes Received:
    11
    Thanks for posting your build on this, and for the suggestion on use glazing compound for sealing the grain. I use glazing compound after sealing with CWF and priming , but I hadn't thought to use it as the grain sealer.I have one in the build pile for starting on this winter (go kinda slow on builds since I'm running out of room to display the rockets, and my wife won't let me put them in the living room. And after 41 years of marrage, you learn to choose your battles.)
     
    beantownJPL likes this.
  8. Nov 29, 2019 #8

    Tyler P

    Tyler P

    Tyler P

    Nom-nom-nom... TRF Supporter

    Joined:
    Oct 2, 2018
    Messages:
    446
    Likes Received:
    136
    Gender:
    Male
    Your filling work looks awesome! Super smooth finish.

    20181007_141654.jpg 20181007_141856.jpg Also one of my favorites. I always bring that one and my SLV when I go out to launch. They're two that I just really enjoy a lot.

    When I saw that L3 QCC I was just blown away. So awesome.
     
    Last edited: Nov 29, 2019
    beantownJPL and Nytrunner like this.
  9. Nov 29, 2019 #9

    kuririn

    kuririn

    kuririn

    BARGeezer TRF Supporter

    Joined:
    Oct 3, 2016
    Messages:
    2,597
    Likes Received:
    663
    Gender:
    Male
    Location:
    Hawaii
    Hey Boston, any special techniques to filling and primering the inside of the intakes? Brush and emery stick?
     
    beantownJPL likes this.
  10. Nov 29, 2019 #10

    lcorinth

    lcorinth

    lcorinth

    Well-Known Member

    Joined:
    Aug 5, 2014
    Messages:
    1,000
    Likes Received:
    25
    This is one of the many on my build pile. I'll be following this one.

    beantownJPL, I'm trying to figure out if we've met at a CMASS launch. I can't tell from your avatar if I recognize you or not. But I checked out your blog and I'm pretty sure I recognize the LCO's voice on your launch videos.

    I'm in Newton, how about you?
     
    beantownJPL likes this.
  11. Nov 29, 2019 #11

    Nytrunner

    Nytrunner

    Nytrunner

    Master of Rivets

    Joined:
    Oct 15, 2016
    Messages:
    5,278
    Likes Received:
    1,156
    Gender:
    Male
    Location:
    Huntsville AL

    Ehhhhh?

    D12 or E9/12?

    edit: Launch record excel to the rescue. It was an E9
    upload_2019-11-29_10-59-39.png
     

    Attached Files:

    beantownJPL likes this.
  12. Dec 2, 2019 #12

    beantownJPL

    beantownJPL

    beantownJPL

    Up up and away... Wait! Come back! TRF Supporter

    Joined:
    Jul 8, 2019
    Messages:
    155
    Likes Received:
    53
    Gender:
    Male
    Location:
    Massachusetts
    Very thin application of glazing putty, and I've got some little needle-like sanding sticks that have done the job nicely.
     
  13. Dec 2, 2019 #13

    beantownJPL

    beantownJPL

    beantownJPL

    Up up and away... Wait! Come back! TRF Supporter

    Joined:
    Jul 8, 2019
    Messages:
    155
    Likes Received:
    53
    Gender:
    Male
    Location:
    Massachusetts
    Quite likely! My son and I joined CMASS this summer, and have been to almost every launch since July. If you haven't met me, you've almost certainly met my 10 y.o. boy, as he goes from table to table like a honeybee chatting up every rocketeer who'll give him an ear. We have a lot of fun with the CMASS folks!

    I also live in Newton ... Auburndale.
     
  14. Dec 3, 2019 #14

    lcorinth

    lcorinth

    lcorinth

    Well-Known Member

    Joined:
    Aug 5, 2014
    Messages:
    1,000
    Likes Received:
    25
    Well, that sounds familiar! I'll bet I have met him.

    Tomorrow night's meeting at the Hatch Makerspace in Watertown is our Cookie Meeting, where we... share cookies. And talk rocketry. I hope to be there. Perhaps we'll see each other there, if you are able to make it.
     
  15. Dec 4, 2019 #15

    beantownJPL

    beantownJPL

    beantownJPL

    Up up and away... Wait! Come back! TRF Supporter

    Joined:
    Jul 8, 2019
    Messages:
    155
    Likes Received:
    53
    Gender:
    Male
    Location:
    Massachusetts
    Made some more progress tonight.

    I scuffed the body tube, and attached the intake pods with 30-minute epoxy.

    After the pods were attached, I did some more sanding and shaping in the intake openings.

    Then I slathered in some more glazing putty.

    I'll sand it mostly back to surface once it dries. IMG_20191203_220747.jpeg IMG_20191203_221014.jpeg IMG_20191203_221509.jpeg IMG_20191203_222632.jpeg IMG_20191203_224457.jpeg IMG_20191203_225613.jpeg
     
    Tyler P likes this.

Share This Page