The Rocketeer - My 3D printed Rocketpack and Helmet

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Longshot114

New Member
Warning . . . Very Picture Heavy.

So I've been working on a project for the last 2 months. Most of it was spent modeling. I tend to go a bit overboard when it comes time for Halloween. I've tried a lot of different techniques to build different costumes. I am by no means an expert or a master at this. I am able to tell you that with each costume I learn a lot . . . Bondo, Mechatronics, Servos, Control Boards, Sewing, Working with Foam, Glues/Chemistry, Different Power Systems, and most important . . .patience.

With the newly acquired, quite awesome SeeMeCNC's Rostock Max . . . I wanted to see if I could build a costume/prop using 3D printing. Why not . . . how hard could it be? I was wrong. So with only 2 months left till all Hallow's Eve I set to work. As a quick note, most of the build is 3D printed . . . not all of it, but most of it.

Most of the time i spent modeling up the Rocketpack and Helmet. I'm not an expert at Solidworks, but did learn a lot from shaping, 3D curves, lofting, etc.





On to the printing . . . I had to cut the helmet into 4 sections and will glue the pieces on later due to build envelope of the printer. The first problem I ran into was scale. The helmet ended up 2x to big. Kinda made me look like a bobble head. Some of the pieces took between 12-16 hours. So you can imagine my dismay when I printed only to find the wrong size. I rescaled and ended up in the other direction, too small. Again wasted plastic and a lot of time. Finally found a scale that worked.

Once the pieces were printed i had figure out a way to glue. Again, a lesson learned, PLA doesn't like to glue with traditional types of glue like the favorited Superglue. I dug around the internet and almost gave up on the whole project till I found some Acrylic Glue that someone only had some great luck with gluing PLA objects. Turns out he was correct, the stuff works.

The 8 pieces of the helm didn't fit exactly correct. I never did build in registers so fitup was tricky. In the end I used a combination of Acrylic Glue to fit it up Hot Glue. Once primed I noticed a ton of voids in the cracks. With some prior knowledge of Bondo I was able to feather out some of the features. Prime, Bondo, Sand, Prime, Bondo, Sand.





The black tubing is just vinyl tubing found at Lowes and would provide the accents I needed.

I was running out of time so i had to get started on the rocketpack . . .




Ran into a huge amount of problems with the nacelles and center fuselage. First it was the rolls of filament kept binding on itself. Hours lost because of it as I had to scrap builds because of it. Orientation of the part being built was an important factor. I must have scrapped at least 20 hours build because of the geometry of the center fuselage. Eventually the printer crapped out when I lost the hot end thermistor. I was unsuccessful in build the bulbs or the top heatsink. Even if I ordered the parts, I had to dismantle the printer assembly to fix . . . good grief the dreaded calibration. With only a week till the party, I had to go with what i have.



Worst possible time to have a plug. . .

I started wiring and doing final build assembly.







Painted, Primed, Wired, and Assembled



Gloves with switches and bracketed, riveted in.



Scratch build harness



Helmet lens installed, full paint job

Rocketeer Build - YouTube

Finally, I performed a preflight check ... hehehe

Definitely not done with this guy but I got enough to get to the party. Thermistors are coming in and I'm hoping to print the ailerons, fuel bulbs, and top heatsink by the time Halloween actually hits.

Learned a lot and had a ton of fun. . .
 

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Dynofiend

Well-Known Member
That pack is great, love the detail you've added including the awesome lighting. You'd never guess it was 3d printed!
 

acesh007

Well-Known Member
Awesome work. Did you do any finishing work to the helmet or pack to smooth it out any? What program are you using for modeling?
 
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