Planeprint EVO

davidk · October 20, 2025, 03:44:41 PM

This looks like a fun plane... wheels, skis, floats. Should be great for the winter. 45.5 inch wingspan. 3536 950Kv motor, 3S or 4S. Flaps.

8mm CF Tubes tie the front landing gear area though the entire fuselage... should be strong enough

msatin · October 20, 2025, 04:44:23 PM

Are you going to add the camera as well?

davidk · October 20, 2025, 07:07:24 PM

Quote from: msatin on October 20, 2025, 04:44:23 PMAre you going to add the camera as well?

No, I don't think so, Mark. I'm really not an FPV guy. Plus the FPV option is 22 euros which is about 10,000 Cdn. With the skis and floats this was the most I've spent on files.

davidk · October 21, 2025, 07:21:28 PM

The motor mount locks into the fuselage with 3 square pins. After that's glued on, 2 locking tabs are inserted at an angle and then thin CA is run into ridges in the tabs. This ties the motor mount firmly to the fuselage.

davidk · October 23, 2025, 06:03:47 PM

Two 400mm CF Tubes connect the fuselage to the tail. The tubes are screwed into the fuselage. A printed drill guide is provided to get the hold placement exact.

The Elevator and Rudder are controlled by 2 servos installed in the 1st wing part along with a 470mm .8mm wire. To remove all flex in the wire the CF Tubes are filled with 3 lengths (on each side) of printed Bowden tubes. How he thinks of this stuff I do not know... just excellent.

GuyOReilly · October 23, 2025, 07:21:51 PM

Looks like great engineering!

davidk · October 24, 2025, 09:26:17 PM

The tail is done and needs attaching. You may notice that only the right side of the tail has a rudder. This was specifically addressed in the manual and the note was that you'll never be able to tell in the air. This was done to keep weight down and keeps things simple.

davidk · October 25, 2025, 12:06:46 PM

The battery is supported by 2 pieces that clip onto the CF Tubes. The 2 parts are a bit different so that the forward piece can slide over a support structure and the rear piece slides over just the rails. Once the battery is in and CG is good these parts can be glued in place. I may just put a bit of tape on the rails instead; in case I want to try 4S. I'll take one of these parts and make it a bit longer in order to install a stabilizer.

The rudder and elevator are in place with a 1mm wire running from the servo, through the CF Tube and Bowden Tubes and out the back to the control horns.

davidk · October 26, 2025, 10:47:05 AM

Landing gear, as usual, is very clever. I'm using ball bearings in the hubs. The manual calls for 4 pieces of .8mm wire per wheel. I don't have enough .8mm so I used 1mm and put in 2 per wheel and that seems good... it's not a heavy plane.

davidk · November 03, 2025, 12:20:32 AM

The Plantprint EVO flew beautifully today. The take-off was easy and the EVO just lifted off the ground. I was thinking... this is a Planeprint plane take-off... and then Michael said... "just like a Planeprint plane... too funny. Flight was excellent and landing was easy.

Now... onto printing it's Floats and Skis for the winter.

GuyOReilly · November 03, 2025, 08:36:47 AM

Bravo!! Looks great and surely very visible in the air.

msatin · November 03, 2025, 09:21:26 AM

Great maiden.
Congrats Dave!

davidk · November 17, 2025, 12:22:20 AM

This will be fun... if the weather ever co-operates. Floats are next.