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  1. ep29030

    MMX Building Supplies

    One nice thing about MMX is the small size. With the exception of body tubes and nose ones, all my MMX stuff fits in one 6x8 box. Even have some 13mm stuff in there as well.
  2. ep29030

    New Decals Mean Some MMX kit Possibilities

    Don’t know if you noticed a company on eBay selling Tango Papa decals. Company is cmrproducts_llc. and they have an eBay webstore. They offer mostly rocketry and model train decals. I noticed some of their decals that might enable some MMX rocket kits (or 13mm if you prefer). They have...
  3. ep29030

    Not a Normal Tool Organizer

    I was working with some PVC tubing on a project for my wife when the demon of stupid sat on my shoulder and said, “hey you could use some of your scrap PVC tubing to make an organizer for your tools and stuff.” The second mistake was agreeing. So off I went. I gathered up my 1/2”, 1”,2”, and...
  4. ep29030

    Rustoleum Again

    Friends don’t let friends use Rustoleum paint. This is a piece of a rocket tool organizer. Painted yesterday with Dupli-Color Self-Etching Primer. Got a new can of Rustoleum becaue it is a color I wanted for another project. Decided to use it on this, since color didn’t matter and it was a...
  5. ep29030

    MMX V-2 Project

    I recently purchased a nosecone/tailcone set from Balsa Machining Service. Parts# BMS20V2B, BMS20V2C. They were made for the old Apogee Medallion motors (10.5mm diameter) that existed for 2-3 years back in the late 90’s. They fit a BT-20 airframe. So this is my attempt to make these parts...
  6. ep29030

    MMX Vendors?

    Just wondering if anyone is aware of active vendors for MMX kits and supplies. Here are the one I know about: eRockets - Semroc MMX kits, body tubes, centering rings, nosecones, motors, etc. RocketShip Games - MMX kits, PLA nosecones, motors (out of stock of most things at the moment) FlisKits...
  7. ep29030

    MMX Launch Rod carrier

    I have several .055 and .063 stainless rods, so I decided to make a tube to hold them all. For fun, I decided to make it out of 1/2" copper tubing with soldered joints. Then I put a buffer wheel on the grinder and polished it. I like the way it polished, so I sprayed a coat of Duplicator 1K...
  8. ep29030

    Honey Bee MMX Kit

    An Ollie-OOP MMX kit, on the launcher they sell. Launcher is great— it slides for different rocket widths. Your rocket sits on the igniter.
  9. ep29030

    Rocket Narrowly Misses Plane

    https://www.msn.com/en-gb/news/world/homemade-rocket-made-from-tnt-and-pvc-pipes-narrowly-misses-plane-at-20000-feet I've re-posted the link. I just did a cut and paste on it, this time as plain text.
  10. ep29030

    LiPo Chargers for 1S and 2S

    I'm wading into the world of LiPo batteries for GPS and altimeters, so I need to get a good charger for 1S and 2S cells. Recommendations? Also, will I need a different one for launch site vs workshop?
  11. ep29030

    (Yet Another) Der Big Red Max build

    I decided to post the build process for my Der Big Red Max kit. I want to uprate the kit to use G or baby H 29mm motors, but I want to use the original balsa multi-part fins and just strengthen them with bonded paper reinforcements. I will use the original paper centering rings as well. I...
  12. ep29030

    New Rocketry Book Coming

    I noticed that Mark Mayfield (LAUNCH Magazine) will be releasing a new book soon. You can pre-order it now.
  13. ep29030

    Atlanta area- any good shops?

    I'm in Atlanta for a couple of days. Any good rocket shops in the area?
  14. ep29030

    New Paradigm in Spacecraft Parachute Design

    This might interest some of you...
  15. ep29030

    Engineer Who Tried to Prevent Challenger Disaster Has Died

    Bob Edeling, the engineer from Morton-Thiokol who tried to stop the Challenger launch, has died. https://www.laboratoryequipment.com/news/2016/03/engineer-who-warned-challenger-problems-dies
  16. ep29030

    [SOLD!] Stainless Steel Micro-Clips for Launcher

    I have 40 stainless steel igniter micro-clips (with flat jaws) that NAR sells for $1.20 each. Got them directly from Lakewood several years ago (before NAR started to sell them) when I was project leader for 4-H Aerospace. Originally ordered the 100 minimum-these are left. I really don't need...
  17. ep29030

    Estes Odyssey Build -- Part 11

    Final Steps to Paint Time to insert the baffle in the airframe. I inserted mine 6 inches from the forward end of the rocket. I marked the depth on a wooden stick, so I would know when to stop pushing it. I used a straw (also marked with tape) to deliver a nice big bead of glue around the...
  18. ep29030

    Estes Odyssey Build -- Part 10

    The Baffle Assembly Continues….. Next, I used a single hole punch and made eight (8) half-holes around the perimeter of one circle. This will become the aft end of the baffle. Put a bead of glue around one end of the coupler and glue this circle in place. It will slightly overhang the...
  19. ep29030

    Estes Odyssey Build -- Part 9

    Use Wadding? Why? I’m Baffled! With a 1.3 inch airframe, this kit is just large enough for a baffle. So I decided to make one and insert it before adding the shock cord in the airframe. Let’s get to it: Now, I don’t have a manufactured baffle—no, that would be too easy. Let’s be adventurous and...
  20. ep29030

    Estes Odyssey Build -- Part 8

    PART 8 The Nose Job Before the kit is ready for primer, we need to: 1) Finish fin fillets 2) Add nose weight 3) Install shock cord 4) Mask off areas to protect before primer. The fillets are just a matter of taking the time: every fin/body joint gets one (1) fillet using TItebond...
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