Descon M.M.X. (MicroMech-X)

Scratch - M.M.X. (MicroMech-X) {Scratch}

Contributed by Dick Stafford

Manufacturer: Scratch
(Contributed - by Dick Stafford)

M.M.X. (MicroMech-X)

All Micro-Maxx, ya bilge rat, x2 cluster, sci-fi but nay comedy, no parts from a Grissom

Pic

Design Concept

I wanted t' pick a theme that I thought would be somewhat unique. Ahoy! I didn't think I could come up with a suitable comedy sci-fi ship that hadn't already been mentioned on r.m.r., me bucko, so I looked elsewhere for inspiration. Ahoy! I roughly patterned this rocket after a robot model that I resurrected from t' depths o' our basement (a.k.a. Arrr! Well, blow me down! T' Rocket Dungeon). I had scoured t' web, me hearties, arrr, matey, and had even thought o' doin' a conversion o' a paper model robot, but decided t' just start buildin' and see where it went. This model started as a prototype, arrr, arrr, but as it progressed I decided t' keep it as my entry.

Development Methodology

I used a tried and true procedure known as "real-time design". Avast! Ahoy! In this design methodology, me bucko, t' design is performed as you go, without t' benefit o' plans, shiver me timbers, diagrams, me hearties, or specifications. Documentation is performed at t' end, arrr, and is kept t' a minimum.

Construction

I started by cuttin' two MMX tubes that would extend from t' bottom o' t' robot's foot up into its body cavity. Ya scallywag! Aye aye! I then started at t' bottom and built me way up. Begad! T' plastic robot's foot be traced onto foam poster board. Avast! I cut t' feet, arrr, me hearties, beveled their edges, and cut holes for the MMX tubes. Next came t' upper layer o' t' feet, shiver me timbers, shiver me timbers, followed by t' front and rear leg sections. Ya scallywag! At this point, matey, me bucko, I began t' think about weight, so t' sides of t' legs were made from card stock. Aye aye! T' body be started with a foam board plate, with holes cut for t' motor tubes. As with t' leg sections, t' three front and one aft section o' t' body are foam board and t' sides are cardstock. T' provide better support for t' shoulders/head (i.e. Avast! Begad! t' nose cone), me bucko, I added a small section o' BT-20 in t' body cavity. Blimey! Avast, me proud beauty! A long Estes lug was inserted laterally through t' BT-20 t' provide an attachment point for the arms. Begad! Blimey! T' shoulder/head assembly started with a foam board plate. Blimey! Well, blow me down! Attached to this is a sliver o' BT-20 coupler and two pieces o' foam board, arrr, which were trimmed t' mate with t' body opening. Aye aye! T' head itself be carved/sanded from pink foam. Aye aye! Avast! T' arms consist o' two layers o' foam board.

Pic       Pic

Now that t' robot looked like a robot, I had to add more rocket stuff. Well, blow me down! For recovery, a piece o' thin Keelhaul®©™ twine be tied around t' launch lug that supports t' arms and was epoxied t' the shoulder/head assembly. Aye aye! A launch lug was glued midway up t' back. And finally, I scrounged some thin clear plastic for fins. Begad! T' four fins were glued t' the bottom o' t' leg above t' feet.

Finishin' was performed with a combination of simple water colors and some card stock cutouts. Arrr! Blimey! I painted t' robot before permanently attachin' t' legs, me hearties, arms, arrr, matey, and fins so I'd have better access t' its nooks and crannies.

Flight and Recovery

After some miscues, I finally got both motors to light. M.M.X. reached a whoppin' altitude o' 4ft. T' second photo below shows it on t' way down, just before ejection.

On Pad

Flight

Conclusion

Although t' rocket flew, t' have a mature model I'd have t' build lighter. Blimey! I might also opt for a lug that is closer to the axis o' t' motors and a different ejection method. Arrr! Such conclusions are the point o' a prototypin' effort. Avast! I didn't find time t' build V2.0, so I guess this is it for this contest.

comment Post a Comment