Nytrunner
Pop lugs, not drugs
Shaping the tunnel continues..
For the wiring tunnels on my Pro series Patriot, i found it helpful to use an xacto to rough in the shape before sanding. Reduced the sanding time immensely
Shaping the tunnel continues..
Wow, great memories of a fantastic kit! This is a solid flier, so don't be intimidated by it once you get yours done. A "unfortunate spontaneous motor disassembly" has removed my BOMARC from the flight roster, but even the handful of flighs I got made all the build-work worthwhile. One day I will build another.
I was never a fan of the balsa ramjet cones, so I 3D printed a 2-part cone to replace them, I thought it added greatly to the appearance. If you've got access to a 3D printer I can probably still locate the model file, I'd be happy to share.
Thanks for sharing your build! Here's a little inspiration of what you can look forward to when she's complete!
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For the wiring tunnels on my Pro series Patriot, i found it helpful to use an xacto to rough in the shape before sanding. Reduced the sanding time immensely
I was never a fan of the balsa ramjet cones, so I 3D printed a 2-part cone to replace them, I thought it added greatly to the appearance. If you've got access to a 3D printer I can probably still locate the model file, I'd be happy to share.
Actually, is there a 3D printer that does better for rocketry? I guess I'm thinking more about the material used, I have not done any research, but I do know some plastics work better than others. Likely there is a 3D printing group here...
I wasn't being overly "choosy" about that, and I'm certainly not the best guy to ask as I've not played around with it much... I was just taking up an opportunity to finally make use of our Mechanical Engineering dept's long standing offer that I "had to try printing something for one of my models"... The machine is one of the common FDM types, and I think the material printed with was PLA. (It's not ABS.) The machine was also set with a reasonably coarse print scale so there were considerable "ridges" in the resulting part, but all four parts (2x inner shock cones and outer cones) were printed vertically, so at least the "unwanted features" came out as concentric rings instead of longitudinal lines of varying thickness. After a couple of coats of high-solids primer and a good deal of sanding and I thought they came out looking pretty good. (With a finer print pitch I'm sure less finishing work would be required, but I wasn't about to get picky about the machine setting on this job!) See for yourself the finished parts below...
Not sure but I think at point it came with a balsa nose coneI will be watching your progress because I have this unopened kit that I got decades ago. I have a red nose cone and with white airframe tubes and my parachute is orange. This might be the rainy day I've been waiting on. Best of luck with your build! Wish there was a date on my kit.
Wow, very nice! If you find the file, let me know- my niece in Florida does a fair amount of 3D printing, maybe I can convince her to do these...
Thanks, truly appreciated!Done! Hopefully this works right. The forum wouldn't let me upload the model files natively so I buried them in a .ZIP. (And this way anyone can download them.) You'll find three solid model files and one DXF. One of the model files shows the inner and outer cones assembled in their relative placements. There's also a stand alone "inner" and "outer" file meant for printing. Finally, the .DXF file has the little bits that are meant to hold the inner and outer parts in place. (I cut these out of G10 and CA'd into place after a little bit of initial prime/sanding.) If you're a hot-shot at 3D modeling (or at least better than me) you could incorporate the standoffs into the outer cone and simplify the assembly.
These aren't meant to be perfect, but they look the part and will hold up better than the included balsa parts. Enjoy!
KMc
Will be using rail buttons for this one.The pods are decorative so they don't need to be super strong. Just be sure to anchor your nose weight. I have heard stories that will turn you white when that has not been done.
The beast is a bit much for 1/4 inch rod, especially around folks who weren't around in the olden days .
For what it's worth, I can't really justify buying a 3D printer for my limited printing needs. I've been using Craftcloud > https://print.all3dp.com/ > to sent out my stl files to get them printed. For small parts, the prices are decent and the turnaround is pretty good. The choice of materials is extensive.Actually, is there a 3D printer that does better for rocketry? I guess I'm thinking more about the material used, I have not done any research, but I do know some plastics work better than others. Likely there is a 3D printing group here...
Thanks for the link. I still do not have one for the same reason, although costs have apparently dropped some since I last looked...For what it's worth, I can't really justify buying a 3D printer for my limited printing needs. I've been using Craftcloud > https://print.all3dp.com/ > to sent out my stl files to get them printed. For small parts, the prices are decent and the turnaround is pretty good. The choice of materials is extensive.
Done! Hopefully this works right. The forum wouldn't let me upload the model files natively so I buried them in a .ZIP. (And this way anyone can download them.) You'll find three solid model files and one DXF. One of the model files shows the inner and outer cones assembled in their relative placements. There's also a stand alone "inner" and "outer" file meant for printing. Finally, the .DXF file has the little bits that are meant to hold the inner and outer parts in place. (I cut these out of G10 and CA'd into place after a little bit of initial prime/sanding.) If you're a hot-shot at 3D modeling (or at least better than me) you could incorporate the standoffs into the outer cone and simplify the assembly.
These aren't meant to be perfect, but they look the part and will hold up better than the included balsa parts. Enjoy!
KMc
I know next to nothing about CAD files, I downloaded ABViewer to see the files. I can't see anything when I open the dxf file, any advice? Also, I do not see the pointy center cone. maybe a viewer setting?
I can see the objects from the sldprt files, just unsure why I do not see the actual center cone. The dxf file opens but I can not see anything in the viewer window. Tobor is suggesting alternative viewers, will give those a try when I'm off my work shift later tonight. Thanks for the reply.I'm surprised ABViewer isn't showing you anything. (I'm not familiar with it, but I looked it up and it ought to be able to open the files just fine.) The DXF file was exported from AutoCAD2014, the three SLDPRT files were generated in some flavour of SolidWorks. I've double checked that I can open all of them up, so the files should still be OK.
Have you tried opening ...intake_model.SLDPRT files in ABViewer? That's the file that "shows" how the two parts go together. ...intake_inner_model.SLDPRT is the center cone, and ...intake_outer_model.SLDPRT is the outer part of the intake.
I can try posting the line drawings in the native AutoCAD format (.DWG) but I think that may be less generic than posting the .DXF. I'm not sure what to suggest for the 3D model files. (I'm a rookie too!)
Thanks Tobor, I will give those a try when I get a chance.
Thanks!Nice job all the way around!
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