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  1. #121
    Join Date
    21st January 2009
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    Massachusetts
    Posts
    1,015
    Prepping two flights for Saturday's CMASS launch

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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  2. #122
    Join Date
    6th March 2010
    Location
    Amesbury, MA
    Posts
    2,002
    Return of the TOGinator!! Yippee!!

    Boris, do you worry about repetitive motion injuries doing all that taping?


  3. #123
    Join Date
    22nd August 2015
    Location
    Rhode Island
    Posts
    1,192
    Quote Originally Posted by delta22 View Post
    Prepping two flights for Saturday's CMASS launch
    That's just awesome!

    I saw VooDoo Daddy fly last weekend as I was retrieving my rocket. Wish I could be there to see this thing fly on Saturday!
    NAR #100940, RIMRA & CMASS
    L1 - 4/17/16, Tyrannosaur (by Binder Design), Loki H144
    L2 - 8/19/17, Terrordactyl (by Binder Design), CTI J250

  4. #124
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Quote Originally Posted by KennB View Post
    Return of the TOGinator!! Yippee!!

    Boris, do you worry about repetitive motion injuries doing all that taping?
    Taping and loading the motors took about as long as watching Black Hawk Down one more time.

    Also used most of a roll of tape. I buy masking tape in contractor packs
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  5. #125
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    This will be the 5th flight for the Soyuz and 8th for the TOGinator.

    For both I am combining multiple mini flashpans as well as multiple igniters.
    Using flashpans, have ignited 309 of 310 motors attempted (13 flights) with the HellBoy.

    This is the first time I am doing flashpans on other rockets.
    As well as a delightful increase in fire and smoke at ignition, also reduces number of igniters by half.

    This will also be an all BP motor flight for the TOGinator, for the first time since its first flight.
    27x D11-P + 3x F15 (Estes) for a Black Powder full I impulse flight...
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  6. #126
    Join Date
    14th September 2012
    Location
    Charlotte, NC
    Posts
    888
    What's the central on the Soyuz?
    Marcus Harmon
    TRA# 8736
    Level 2

  7. #127
    Join Date
    21st January 2009
    Location
    Massachusetts
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    Quote Originally Posted by marcusSRG View Post
    What's the central on the Soyuz?
    Either a CTI 29mm 3gr H54 White or an AT G77 Redline
    Both make a full bright rounded flame
    Just a matter of color...

    The Soyuz is heavy enough, with a flight weight of about 9lbs, to require a central AP motor
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  8. #128
    Join Date
    21st January 2009
    Location
    Massachusetts
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    1,015
    Got the night flights prepped.

    Rockets left to right on workbench: (pics 3-6)

    Viper on 4x D12-5, with mini flashpan (pic 1)
    Had to replace light for Viper. Installed another low cost 9LED 3AAA flashlight into the base of the nose cone. Used used tie wraps and lots of masking tape
    Unpainted, thin-wall, plastic nose cone is a great light diffuser. (pics 2+3)

    Canadian Arrow on CTI G57 Classic

    Turbine Rocket Saucer on D11-P cluster

    All LED lighting
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  9. #129
    Join Date
    7th August 2014
    Posts
    298
    Clusters are SO cool. To the level of the TOGinator though, awesome!

    Could you post the .stl files for the rockets that you are 3D printing?

    Also, what CAD software are you using? If it is SolidWorks, could you also post the part files?
    BuiltFromTrash
    First RMS Flight: June-17 2015
    Pringles Can Rocket
    G53-FJ-7 (29-40/120) 92 Newton-Seconds
    ~1300 Ft

  10. #130
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    CMASS launch - Amesbury, MA - 11/19/2016

    Another beautiful fall day, 50's, low winds and sunny.

    First up was the TOGinator firing its 30 BP motor cluster: 27x D11-P + 3x F15

    Lifted off on a huge cloud of smoke with a pop and a quiet hiss.
    The low angle of the winter sun backlit the smoke to interesting effect.

    Jolly Logic Altimeter 2 reported peaks: 777ft, 142mph, 6.5Gs
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  11. #131
    Join Date
    21st January 2009
    Location
    Massachusetts
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    My second and final daytime flight was the Soyuz.

    Another pop and hiss on a column of backlit smoke, firing its 17 motor cluster: 16x D11-P and 1x CTI H54 White

    Altimeter 2 reported peaks: 757ft, 136mph, 6.8Gs

    Videos of these plus night flights to be posted shortly.
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  12. #132
    Join Date
    21st January 2009
    Location
    Massachusetts
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    Claude Maina's 2 stage Decaffinator did a fun flight.

    The ultimate low and slow rocket made from Styrofoam cups, taking advantage of the very light winds.

    Another brilliant rocketry inspiration from FlisKits.
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  13. #133
    Join Date
    21st January 2009
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    Massachusetts
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    Beautiful sunset waiting for the night launch

    Claude and Ken setting up for the first round of night fights
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  14. #134
    Join Date
    27th October 2009
    Location
    Brigham City, UT
    Posts
    2,235
    Thanks for posting, Boris! Beautiful pictures and beautiful countryside! You guys have a nice launch site. Love that Soyuz. Looking forward to the video.

  15. #135
    Join Date
    18th January 2009
    Location
    Maryland
    Posts
    11,705
    Gotta love those big BP clusters. Makes my 4 motor cluster this weekend look silly. The videos will be cool, as always!
    Dick Stafford
    The member formerly known as the Pointy-Haired Moderator.
    The Original Rocket Dungeon
    Volunteer compiler of product news for ROCKETS Magazine

  16. #136
    Join Date
    23rd November 2013
    Posts
    2,219
    Very nice pics 👍👍

  17. #137
    Join Date
    19th May 2009
    Posts
    332
    Love the column of smoke on the Soyuz

    *waits patiently for video*

  18. #138
    Join Date
    21st January 2009
    Location
    Massachusetts
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    TOGinator and Soyuz flights:



    CMASS night flights:
    Sorry about the soft focus, camera struggled with conditions

    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  19. #139
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    MMMSC Launch - Berwick, ME - 12/3/2016

    We were permitted to fly sparkies, so fly them we did

    First up was the Canadian arrow on an H123 Skidmark to 1500ft
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  20. #140
    Join Date
    21st January 2009
    Location
    Massachusetts
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    Then the Golden Arrow went up on a J520 Skidmark to 3500ft

    Recovered right at the edge of the field
    Found and recovered another rocket on my walk back

    Due to cold fingers and a cold brain, didn't get video from ground cameras for this flight
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  21. #141
    Join Date
    21st January 2009
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    Massachusetts
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    My last fight for the day (and 2016) was the Turbine Rocket Saucer on 6x D11-P
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  22. #142
    Join Date
    21st January 2009
    Location
    Massachusetts
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    1,015
    A couple college teams, including UMass did a number of flights

    Their skid (pics 3+4) was the last flight of the day
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  23. #143
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Stopped by Robert and Gloria's (AMW) for a combination of holiday celebration and some rocketry purchases

    pic 1: Helped to put together a flying Christmas Wreath for the MDRA Christmas tree launch

    pic 2: Robert built a TINY 2 stage, AP motor rocket. 13mm minimum diameter, with GPS and altimeter!
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    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  24. #144
    Join Date
    17th February 2010
    Location
    Northern Nevada
    Posts
    1,116
    Fun thread, I'm paying more attention to your printer than the rockets

    I also have a deltabot, an OpenBeam Kossel Pro. I'm printing mainly in PLA. ABS is a real PITA at times. I've had more failures than successes with ABS. My printer is in a small closet so it's nice and toasty during the print.

    What brand of ABS filament are you using?
    What temps on the build plate and extruder?
    What controller? The Kossel uses the "Brainwave" which is an Arduino derivative.

    The cyclops is interesting. I was thinking that the firmware could be modified so that some extruded filament is "wiped" off on a secondary print. That could help to clear the contaminated material out of the nozzle.
    ~Don
    Tripoli 12614
    L3

  25. #145
    Join Date
    21st January 2009
    Location
    Massachusetts
    Posts
    1,015
    Don,
    ABS filament brand: SeeMeCNC
    build chamber temp setting: 70C (actual 60-70, controlled and elevated chamber temp is required to prevent severe ABS warping)
    build plate setting: 70C
    extruder temp setting: 220C
    controller: RAMBO board that came with the Rostock MAX kit (also Arduino based)

    Heated build chamber is essential to ABS printing. Went with 70C goal as SeeMeCNC forum posts suggested that much more than that could stretch the rubber drive belts.
    Cooler temps prone to causing a lot of ABS part warping.

    I know its a PITA, but highly recommend building a chamber similar to mine.
    ABS cuts and sands like wood but better (no splintering), is the most temp and shock resistant material that can be practically filament deposition 3D printed.

    For rocketry related 3D printing, ABS and heated chamber are extremely desirable.

    My take on the Cyclops is that it is in beta. The heated chamber improves ABS print reliability, Cyclops offers great potential options but frequently reduces print reliability.
    The Cyclops is very interesting. It offers the option of dual colors or using support material. E3D makes very nice stuff.

    The Cyclops must be loaded with filaments in both inputs at all times.
    If both filaments are under some extruder driver pressure anytime one filament is being driven, then all is good.

    If one filament is being driven into the Cyclops when the other filament is relaxed or not present, then the Cyclops will backfeed filament = dissaseemble Cyclops and Acetone clean.
    Only had to do this once, 1+ hr to do. Careful attention to every setup can prevent the need.

    Using Mattercontrol to slice 3D shapes into printer instructions as this was supplied with my kit and the user interface is very friendly.
    Most of the time it works fairly well. Regarding dual extruder setup, it is in beta mode.
    Shell wipe function does not work. Tower wipe function does execute but requires a lot of sacrificial material.

    All of my dual material printing has been ABS (part) and HIPS (support for overhanging part shapes).
    Sometimes producing parts I could not otherwise make*, and more often printing more scrap
    * Camera covers for onboard 808 #16 video cameras on flights 300-800+mph
    Boris Katan
    NAR / TRA L3
    Lots of fun cluster rocket pictures and video at: www.bpasa.com

  26. #146
    Join Date
    17th February 2010
    Location
    Northern Nevada
    Posts
    1,116
    Thanks. I'm using similar temps. My "chamber" doesn't get anywhere near 70C, maybe 40C on a warm day. I'm space limited at the moment so a proper chamber will have to wait. My big problem with ABS is delamination. I've been using some IC3D ABS filament with reasonable success although I still have a 90% failure rate with ABS prints. My experiments with Matterhackers ABS have been dismal. It could be a bad batch though. PLA on the other hand is a breeze to print but it's fragile and is a very poor structural material.

    The chimera hotend looks very interesting as well but I would need to upgrade the controller. There are some new v2 Smoothie boards under development which use an ARM Cortex processor and are able to control multiple extruders. http://smoothieware.org/blog:15 A few guys on the OBKP support forums have upgraded to the v1 Smoothie with very good results. Evidently they are much easier to configure than Marlin based Arduinos.

    Both the cyclops and chimera are for sale at Matterhackers. I'm not so much interested in multicolors as I am having the ability to print dissolvable support structures.

    Here's what I'd really like:

    https://markforged.com/mark-two/ ($13.5K)

    or

    https://markforged.com/mark-x/ (~$70K)

    Continuous filament carbon fiber in nylon. Very nice.

    ~Don
    Tripoli 12614
    L3

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