The Mars Lander model rocket was introduced by Estes in 1969. Designed by Wayne Kellner, it featured shock-absorbing landing gear that allowed it to land upright without damage (usually). When Estes stopped making the kit, Semroc began offering a nearly identical replacement kit that is still available today.


This 3D-printed reproduction has the advantage of allowing easy replacement of the rubber bands used on the landing gear - something that was difficult to do on the original. Most parts connect via twist-lock fittings. Only the landing pads (feet) need to be super-glued together and glued onto the landing gear (legs). The landing gear shown are red PLA+ ,the pads printed in silver PLA+, and everything else is white PLA+.


This model comes in pieces to be assembled, glued, and painted.


You will need:


-Hobby Knife

-Glue/cement

-Paint and Primer


To launch you will need:


- 20" parachute

-shock cord

-paper wadding

-counterweights for the nose cone base which is designed to accept U.S copper pennies

- engine

-engine mount tube with centering rings




The finished model is about 12 inches or 30 cm tall.


Thank you to mech-G for this design!