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  1. maddmaxx11

    Wanted Cambridge IAX-96 Avionics

    Make me an offer. I made a new ribbon cable. It works fine ( I was an Electronics Tech for over 30 years). It also has 3 extra ribbon cables and the original. I don’t think I will ever use it again. I am building and using eggtimer stuff now.
  2. maddmaxx11

    Wanted Cambridge IAX-96 Avionics

    I have a IAX96 that is in good condition. I don’t use it if you’re interested. I can send you a picture if you want. I still have the original instructions And box.
  3. maddmaxx11

    Hybrids 2024

    I need to fill motors up to a 54mm 30” long. Will the 1/8 “ or 1/2” do it in a reasonable time. I fly 29mm and 54mm motors.
  4. maddmaxx11

    QUAKE (QU8K) 50% 3D Print Build

    Did you add any nose weight for the F44 or was it ok without?
  5. maddmaxx11

    QUAKE (QU8K) 50% 3D Print Build

    I finally flew my Quake with an Aerotech D15. The CG was 1.3 caliber’s with that motor. The rocket flew as strait as an arrow to about 600 feet with a good recovery. If you fly on an E or F motor you will need weight in the nose or make the rocket longer.
  6. maddmaxx11

    Hybrids 2023

    The Rocket flew great with the SRS H78. The outside temperature was about 60 degrees and the tank pressure was right at 700 psi. Now to fly the SRS 54mm motors that I have. The ABS fuel grain is 38 grams new and after the flight it weighs 25 grams So it used 13 grams of ABS.
  7. maddmaxx11

    Hybrids 2023

    What is the lowest pressure that you should fly a hybrid at? I have some old SkyRipper hybrids but my club can only fly in the winter here in North Alabama. Even though this week had 80 degree temperatures it is always barely above 60 degrees during the one time a month we have a launch.
  8. maddmaxx11

    QUAKE (QU8K) 50% 3D Print Build

    Anyone have problems with the CG being to far back with a D or larger motor?
  9. maddmaxx11

    Hybrids 2023

    Where did you find the aluminum N20 cartridges In the USA? I had thought about trying one of these micro hybrids but can fly because of the steel.
  10. maddmaxx11

    Reliable DD Ejection

    I found on one of my fiberglass rockets that the gas would leak so I put masking tape around the coupler/eBay and nose cone so that it was a tight fit even though I am using a shear pin. Ground test so that you get it to separate good.
  11. maddmaxx11

    Hybrids 2023

    Are the lower cost valves on your site yet? How much?
  12. maddmaxx11

    Puffy lipos

    Put them in a bucket of water with salt mixed in. Leave them outside for a couple of weeks. The lipo will discharge to 0 volts and then they can be put in the trash. The salt also breaks down the Lithium. They are not bad for the environment like Nicads etc.
  13. maddmaxx11

    Found Aerotech 54mm Hardware

    No. I found some. Thanks
  14. maddmaxx11

    Chinese Weather Balloons, and Should You Worry About Them?

    China has a balloon that can carry 1.2 tons of payload. They could put an EMP or Nuke on here or maybe use it to spread more Covid or a new version that they engineered. I have a feeling that they have been doing this for a while and we have only noticed this one. Shoot this thing down and send...
  15. maddmaxx11

    3D Printing of Hybrid Grains

    I have printed ABS fuel grains for my SRS 29mm motors and 54mm. I use 100% infill and the grains weigh the same as a factory grain. I have tested the 29mm grains 2 times so far and they work great. I do have thrust curves and they look just like the curves that TMT shows.
  16. maddmaxx11

    CTI price increase

    Time to invest in more hybrids And 3D print ABS fuel grains. Nitrous right now is $7 a pound.
  17. maddmaxx11

    What did you do rocket wise today?

    Finished vinyl wrapping a Hurricane 38 that will fly on a SkyRipper 29mm hybrid.
  18. maddmaxx11

    3D Printing Creality Ender 5 S1 For Review

    I printed the 29mm and 54mm fuel grains on a Voxlab Aquila (Ender 3 copy) in ABS and ABS+ without an enclosure with no problems. I used the washable glue stick with a bed temp of 100. It will not stick without the glue stick even at 100. I also turn the part cooling fan off for the complete...
  19. maddmaxx11

    Dedicated Altimeter(s) For Each Rocket

    I have one Eggtimer Quantum for each rocket. Why not at $40 each and they have more features and work just as good or better than the expensive pre-built altimeters.
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