I have a huge collection of A10-3T Mini Estes motors. I decided to design a sport rocket that is easy to see, doesn't go too high, & easy to build. The Mini Max is printed using the spiralized technique so it is light and strong. It is particular on balance so be mindful of balancing the rocket before flight.
Things you will need besides printed parts:
-Small screw eye for nose cone
-18" of 300# test Kevlar kite line
-18" of elastic shock chord
-1.25" x 20" streamer for recovery or 8" Estes Parachute
-(1) Small Fishing Swivel
You will need to print (1) Nose cone, (1) Fin can, (1) mount, & (1) clip. I set the shell thickness to 0.72mm. I set the infill to 100% for the nose cone.
Once printed, trial fit parts together. Nose cone should be a nice slip fit. The coupler should fit snug into the body tube & fin fan. The mount should also fit snug into the fin can.
I use Gorilla glue super glue to glue together. Tie the kevlar line to the motor clip. Tie the elastic to the Kevlar string. I used 300# test Kevlar kite line. I also put a piece of heat shrink tubing over the knot for added security.
Glue the motor clip to the motor mount. Glue securely!! Align the motor clip opposite the launch guide tube on the lower fin can and push into place to test fit. If all is good glue securely place. The mount has a notch to guide the Kevlar. Push the mount in until it is flush with the back of the fin can. The motor will stick out of the back 1/4". The mount clip will stick out about 0.5".
Screw in the small screw eye into the nose cone. Tie the elastic shock chord to the nose cone using a bowline. Leave a small loop so the elastic is knot isn't tight to the screw eye.
For recovery, use either a Estes 8in parachute or a 1" x 20" streamer. I use a small fishing swivel to keep the tangles down and to make the recovery switchable.
Congratulations!!! Your new rocket is complete!!
Please see the recommended rocket engines for this rocket. I use (4) squares of recovery wadding to protect the recovery parachute or streamer. Check the balance for the proper location. Ready to fly it should balance 1/2" ahead of the fins.
Motors I have used are 1/2A3-4T & A10-3T.
Good luck and safe flying.