Spitfire76's Build Log of 3dLabPrint's Piper J3 Cub

Spitfire76

Well-known member
Hey! Brand new to printing rc planes (but not printing in general). I have a X1C - would you be able to share the bambu labs slicer presets to save some time? Have you flown it yet? I was thinking of ordering some of bambu’s aero filament to do this.

Thanks!
I am trying to work out the best way to share pre-sets without actually sharing the STLs which would be the case if I simply posted a 3mf project file.

I also was considering getting some Bambu Lab's Aero filament but since 3dlabprint's Pollylight 1.0 active foaming LW-PLA is now available in the US I will get it from Lee.


Previously it was only available direct from 3dLabPrint located in the Czech Republic so the shipping cost was high.

I used the Cub yellow as it saved me having to paint.

No, still have not flown it
 
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Jester9092

New member
I am trying to work out the best way to share pre-sets without actually sharing the STLs which would be the case if I simply posted a 3mf project file.

I also was considering getting some Bambu Lab's Aero filament but since 3dlabprint's Pollylight 1.0 active foaming LW-PLA is now available in the US I will get it from Lee.


Previously it was only available direct from 3dLabPrint located in the Czech Republic so the shipping cost was high.

I used the Cub yellow as it saved me having to paint.

No, still have not flown it

Would it be appropriate to use a not the whole plane, but a few parts from the Piper in your 3mf projects that you would share? Since it's a free model, I would think that 3dLabPrint wouldn't mind. Maybe a 3mf of a thin walled wing section and one with a section of the fuselage. That would probably be enough to make sure the model would print.
 

Spitfire76

Well-known member
Would it be appropriate to use a not the whole plane, but a few parts from the Piper in your 3mf projects that you would share? Since it's a free model, I would think that 3dLabPrint wouldn't mind. Maybe a 3mf of a thin walled wing section and one with a section of the fuselage. That would probably be enough to make sure the model would print.
3dlabprint just published these settings for Bambu printers which are really close to the ones that I was using.

 

Spitfire76

Well-known member
Thanks for that link. I guess I know what I'll be working on this weekend. Hopefully, I can get a decent print out of it.

Regards.
Just load the non spiral-vase profile for the LW PLA into Bambu Studio. You can of course replace the part with a part from the Cub. Also most Cub parts have height modifiers so you will need to match in Bambu Studio for what is set in Prusa slicer for each part.
 

Jester9092

New member
Just load the non spiral-vase profile for the LW PLA into Bambu Studio. You can of course replace the part with a part from the Cub. Also most Cub parts have height modifiers so you will need to match in Bambu Studio for what is set in Prusa slicer for each part.
I meant to get back to this thread before now. The information from 3dfLabPrint was perfect. The only thing I did to change their settings was increase the flow rate from .5 to .6. At least on my printer, the prints were coming out too light (and probably a bit more fragile) at .5, but at .6, the prints match the specified weights for each part almost exactly. Thanks for the help.
 

Spitfire76

Well-known member
The past few weeks I've been to a local lake to fly. I tried the FT Sea Duck and although initially it flew well the foam board is not holding up very well after getting wet. I then added floats to the FT Tutor but that too had problems so now will switch to my 3d printed planes and attempt a maiden on this Cub tomorrow.

IMG_4860.jpeg
 
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Spitfire76

Well-known member
Well maiden didn't go that well. Like the Tutor it did not want to leave the water. I changed the prop from the recommended 8x4 to a 9x6 and that was better and did get of the water but made a bit of a hard landing and cracked one of the floats. I observed that the reason why I had a such a hard time getting it off the water is the floats are making a bow wave high enough for the prop to hit it.

IMG_5062.jpeg
 
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EKflite

New member
Do you think this will work on an A1 Mini, I want to build one. My dad learned to fly in a J3 Cub, my mom won’t let him renew his license though…
 

Spitfire76

Well-known member
Do you think this will work on an A1 Mini, I want to build one. My dad learned to fly in a J3 Cub, my mom won’t let him renew his license though…
Unfortunately the build volume of the A1 Mini is 180x180x180 and the requirements for this Cub are 200x200x200. You could print some parts but not all.
 

Spitfire76

Well-known member
I should add that I was impressed how well the water rudder worked and did not break.

image.png

I could reprint the floats but because of the issue with the bow wave that they generate I am going to switch planes to the Eclipson Model B XL. Its a much bigger plane and has flaps which I understand is really helpful if not essential to flying off water - half flaps for take off and full for landing.


 

Spitfire76

Well-known member
B XL, is there a cub video?
Thought you might have built the B XL but maybe you were referring to the video. Yes there is a Cub video, Troy seemed to have better luck than I did at getting off the water.


 
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bisco

Elite member
thanks, yeah i was referring to the video. i've built the cub out of foam board, but i don't do 3d printing.