3d Printed Part Sets - Freewing F-4D Phantom II

[bbaumer]

Those look great! And, just about the right scale for my FW F-16. :Cool:

If I get them to print well, I'll be happy to share the files, still working through things . I did get a test print of the tail nozzle looking fairly good and smooth




[EDIT] and here's the nose piece, now I just need some tubes and fins, both are pretty easy prints

[Prowler901]

Those look great! And, just about the right scale for my FW F-16. :Cool:

[bbaumer]

Trying my hand at an AIM7 Sparrow for the underside, I'm a 2d Draftsman by trade, having to learn the modeling as I go.

I'll say this, a 1/11th scale sparrow is huge!

[JLambCWU]

Looking good, apmech1.

Bbaumer, my canopy mod just shows the potentIal for people considering the ladder 3DPUP, which requires at least the front canopy to be cut open for the ladder to latch into the cockpit itself. I've heard of some people buying a spare canopy/cockpit to use as static display on the flight line. As for rigging a functioning, flight-safe canopy... industrious modelers will need to cut the canopy and frame it to keep everything rigid during opening and especially during flight. Ply, styrene, or 3DP ABS could work well here.

So they are juat glued static Alpha?

[apmech1]

Cool, i will check that out, thanks for the tip! I will scale it down in cad and see how the print layout looks like.

[Dirty Dee]

Nice apmech1,

One tip I can share from my modeling experience is that 1:1 modeling can make things easier when working off full scale drawings with dimensions, but sharp edges and small details may not properly translate when you scale down for 3dprinting. with typical nozzles being 0.4mm for hobby printers you will notice a degradation of detail on anything that starts to reach 0.4mm and smaller. The sway braces on your BRU-42 might not print properly if the diameter is too small, and the printer might just deposit small blobs rather than run circular perimeters when it reaches those details.

Don't want to derail this thread too much, but check out the 3DP thread for more discussion:

https://www.hobbysquawk.com/forum/rc-airplanes/airplane-tips-and-tricks/121532-official-3dp-thread

[Alpha]

Looking good, apmech1.

Bbaumer, my canopy mod just shows the potentIal for people considering the ladder 3DPUP, which requires at least the front canopy to be cut open for the ladder to latch into the cockpit itself. I've heard of some people buying a spare canopy/cockpit to use as static display on the flight line. As for rigging a functioning, flight-safe canopy... industrious modelers will need to cut the canopy and frame it to keep everything rigid during opening and especially during flight. Ply, styrene, or 3DP ABS could work well here.

[apmech1]

I am working on making the fuse for the nose of the bomb.

[Prowler901]

Well, I'd say those look dang good, apmech1! :Cool:

I've been working on pylons for the wing stations along with 370Gal drop tanks for the Freewing 70mm F-16. I hope to have them ready for folks to test out soon.

[apmech1]

My cad skills are pretty rusty, I wish I had drawings to go off of. I couldn't get the scale fidelity I wanted with the ejector racks for fear of weakness in the airflow. Here is what I have so far:

[bbaumer]

So in the videos about these parts we see a canopy mod, is that in the works from motion?

[Dirty Dee]

Gotcha. Yea, I was very curious about source drawings since I have the BRU-41 and BRU-42 high on my to-do list for CADing up and printing. Working on LAU-117 and higher fidelity AGM-65s currently.

[apmech1]

I had to create them in autocad. I used dimensioned photos / diagrams. Once I post some pics, any feedback will be welcome.

[crxmanpat]

I think what he meant was that he drew it in CAD to 1:1 scale so that he could scale down to whatever size suited him, not that he had acquired the full scale CAD drawings.


apmech1, do you plan on making these files public? Would be very interested in doing some myself for this and other planes. I don't have a 3D printer yet, but have been hovering over the Buy Now button for a Prusa i3 MK3.

[Dirty Dee]

Nice. How did you acquire the fill size drawings?

[apmech1]

I am putting the finishing touches on a tripple ejector rack for under the sidewinders and two for the centerline. I have the Cad drawings to full scale so they can be scaled down to whatever size I decide to go with. Looks like length of the f-4 Model is 1/11.45 and wingspan is 1/11.48. I'll probably use 1/11.45. I am creating sparrow missles with the recessed fins removed. I am also working on a suu-23 gun pod for the centerline as well as a fuel tank. I will post some pics this evening.

[Alpha]

Dirty Dee,
Any "upgrade" you create using any of our models as a backdrop is entirely your creation and you're fully free to do with it however you please, just link to our product page for appropriate credit and here on HobbySquawk to keep the forum family engaged. At Motion RC, we want to encourage people to experiment, tinker, enjoy, and share.

Your A-10 office looks superb!

[RCjetdude]

I love seeing the enthusiasm and ingenuity, guys, thank you for your support! A few responses and tips:

*RCJetDude, I know you already know this, but long overhangs will kill your efflux, so be sure to extend your stock foam nozzle's inner diameter outward to the lip of your custom extended 3DP nozzles.

*Acetone vapor smoothing has been shown to work for ABS and some types of PLA, but as always, test your specific filament first. Not all PLAs are the same.

*As some of you have commented, matching the print quality, resolution, and finishing of our industrial printers here at the factory isn't easy. We provide the files for free because we want people to try it, understanding that they're putting in their own time to work it all out. Some of us like to tinker. For those wanting to avoid all the technical aspects of taking a file to an actual high resolution print, I'd agree with the observation that our pre-printed sets are very reasonably priced.

*The nozzles are intended to slide over the stock foam nozzles in seconds, as shown in our installation video. Slicing the foam and the 3DP both to shorten to a more accurate total length is possible for those wanting even more accuracy, although be mindful that the foam nozzle's ID is not concentric a couple centimeters inward from the outlet, so don't cut too deep.

*Regarding reselling or otherwise monetizing our files, yes, for now we are not permitting such a thing. We want the files to remain free to help jumpstart interest in this initiative.

Hey Alpha, while I did shorten the length of the foam nozzle about 5/8" I also maintained the ID of the foam nozzle on my 3DP nozzle. I noticed it is not concentric and I did not want to cut it back too far so I blended a little foam filler, not much, to smooth the inside of the foam duct and eliminate a small lip created by my part. My solid modeling skills in CAD are not there just yet to blend from one shape to another so I kept it simple and sacrificed some scale appearance but once painted I think it will look good and I don't think I have hindered it's performance any.

So far, I have not been able to touch the quality of the 3D parts MRC will be offering. Nice job!

[Dirty Dee]

I'd add that anyone who wants to design and sell their own 3DP sets, by all means, jump in. We hope our aircraft are worthy canvases for everyone's creativity, be it paint, 3DP, scratchbuilding, or other customizations.

Hey Alpha,

I have some question regarding this statement:

-For instances if someone were to reverse-engineer an existing item you are currently distributing (A-10 Nozzle for instance). Does this fall under an infringement and shouldn't be publicly shared? I made a close copy for my personal use as a base to create scale appearance nozzles, but have not shared the original cloned copy.

https://www.thingiverse.com/thing:2753347

-Whenever MotionRC receives permission to share PRT files to assist with designers creating more 3DP sets, will there be any Terms and Conditions associated with the designs people will be either sharing/selling?


Also shameless plug to share a 3DP set I am currently working on for the A-10. Though it's not a direct drop and is an invasive modification. :)I also am slowly releasing various 1/10th scale ordinance on my thingiverse for anyone wanting to print/rescale for themselves.

[Hardway]

Love it. All the parts have been pre-ordered when they were first released... They look great!! Thanks to all involved!!! :Cool: