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Go Back   WIMAC > R/C > Projects and Builds

Projects and Builds Share your project builds, tips and tricks.

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  #1  
Old 2018-05-09
Andrew Fernie Andrew Fernie is offline
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3DLabPrint P-38

Decided it was time for a new plane for the summer and I saw some interesting designs from 3DLabPrint (www.3dlabprint.com), including a P-38. 55" wingspan, flaps, retracts, etc. (12 servos in all).

Basic principle is that you purchase the model files and send them one after another to a 3D printer. Once they have been printed you glue them together with CA and add the electronics. Biggest one is a 75" Corsair, and the 67" Spitfire looks really nice.

The structures are very complex - quite amazing to look at.

Printing takes a while. The job I started this evening has the parts for the left wing outboard of the left engine/fuselage and is estimated at 11 hours (will probably be a couple of hours more than that). You can see what I have made so far. My printer is a bit bigger than what they design for so I am now starting to combine pieces (the current job will be in two pieces while the right wing equivalent was four pieces.) I will probably reprint the right wing if the left one works well (time to order more filament).

Don't hold your breath to see it at the field...

Andrew
Attached Thumbnails
P381.jpg   P382.jpg  

Last edited by Andrew Fernie; 2018-05-09 at 08:53 PM.
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  #2  
Old 2018-05-09
antoine zabal's Avatar
antoine zabal antoine zabal is offline
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Very interesting.

Tell us more please
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  #3  
Old 2018-05-09
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Tarek Hassoune Tarek Hassoune is offline
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Good job Andrew looking very nice. Is this a new printer
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  #4  
Old 2018-05-09
Andrew Fernie Andrew Fernie is offline
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Yes, I got it a few weeks ago. It has taken a bit of time to figure it out, but am getting there now.

Andrew
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Old 2018-05-10
briankizner briankizner is offline
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Amazing. What is the material? Is it strong, stiff, and not heavy?
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  #6  
Old 2018-05-10
Andrew Fernie Andrew Fernie is offline
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The weight of the airframe (before adding the landing gear, motors, servos, etc.) is supposed to be 1160g, and all-up weight with batteries should be around 2kg. Most of the structure is only one layer thick (about 1/2 mm). At 1160g that means the cost of material is about $40.

I am printing with PLA, a kind of plastic. Downside is that it can get soft if out in the sun too much but they say that ABS is too brittle.

See https://3dlabprint.com/shop/lockheed-p-38-lightning/ for more.

I can only imagine how many pieces it will end up in after a crash, so questionable as to whether this approach is really practical, but it is interesting.
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  #7  
Old 2018-05-10
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Sempai-mj Sempai-mj is offline
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Very cool, when are you starting to take orders
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Old 2018-05-10
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Tarek Hassoune Tarek Hassoune is offline
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Which software are you using to print
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Old 2018-05-10
Andrew Fernie Andrew Fernie is offline
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First Name: Andrew
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The models come with already prepared gcode files for Prusa i3 compatible printers, but you can't readily tweak them if they don't work well with your "almost 100% compatible" printer. They also provide files prepared for "simplify3D" which is what I am using. STL files are provided with instructions for Cura.

There are some good instructions on their site, and if you want to see how well your printer will work they post sample parts on thingiverse - https://www.thingiverse.com/stephencz/designs

Andrew
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Old 2018-05-10
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drgilo1973 drgilo1973 is offline
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andrew i have files for cessna if ur interested for that also
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