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FreeFlight

Ultrabatic Slope Glider

by FreeFlight May 28, 2019
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Hi, thanks for this great design, with how many perimeters you printed it?

i´m getting much weight for F02 with 0% infill and 2 perimeters...F02 is weighting 62 g

Hi Juan10r
I used single perimeter with line width = 0.4mm and 0% infill

And look the nice color it will have my friends choice since he will fly the first one :)

Hello
Just started to print the plane and wonder how you could make it in 25 to 30 hours.
The config file for Slic3er says pront speed at 60m/s
I use Cura slicer and put speed to 100m/s and cone and f02 part is already at 13 hours.
Just curious:)
Any way I plan to print at 60 m/s for better quality of f02 and use Slic3er instead of Cura since it looks very nice :)

So you cut out each base of the fuselage to pass the cables? inside

Yes as written in the manual you have to cut away the layers on the base, taking care to leave approx 4-5mm around to have bigger glue surface

what is the position of the CG ????

being an aerobatic glider better CG has to be found by user. For my first flight I placed forward (with 15 gr lead in the nose) for safety reason. Then I started to gradually decrease so the CG moves backward.
A good start is to place CG about 15mm in front of the wing carbon rod.

hello how are the rods of the fuselage servos installed? It does not have good exit inside the cabin, it has photos of how it has installed?

currently working on revision for easier installation of the cables inside fuse. You have to put the cables before glue the fuselage otherwise is nearly impossible. In my first print I was forced to break fuselage and glue again. I used push pull cables for fin and a very thin bowden (diamenter of the rod 1.2mm) for stab.

Very nice job putting this together for the community.

I'm just starting the project and will post pictures once I'm done.

Thank you!

thanks a lot, waiting for pics..... I'm working to rev 1 with more easy installation of the fuselage rods and magnets for the canopy

I congratulate you!
Excellent design, I love it.
A great job!!

thanks a lot , maidened sunday . see previous comment.

Hello, Has someone fluew it? any link for youtube video?
THX

I joust had maiden last sunday. Four flight session of about 20 min each. Very very satisfied, slope condition were ok and plane likes to run quite fast. Authority of the stab is impressive and was forced to use 60% expo on stab and ailerons.
I put 15 gr ballast on the nose for safety but in the last fluight I removed 10 g and aerobatic goes better.
I never had AHI but I saw in flight. since there is a weight difference performances are different, but I fully enjoied.
Unfortunatly third flight session I found Rx battery completly drained at 50m above ground and I was lucky to find the crash site. Wings have survived but fuselage is broken in half. I changed battery and fly again after tape recovery, performances was not affected.
I liked very much the landing , during final approach pull stab gently and the plane lift the nose and land on the grass.
I was alone (except and old RC guy not able to record a video) so no video this time.

I joust had maiden last sunday. Four flight session of about 20 min each. Very very satisfied, slope condition were ok and plane likes to run quite fast. Authority of the stab is impressive and was forced to use 60% expo on stab and ailerons.
I put 15 gr ballast on the nose for safety but in the last fluight I removed 10 g and aerobatic goes better.
I never had AHI but I saw in flight. since there is a weight difference performances are different, but I fully enjoied.
Unfortunatly third flight session I found Rx battery completly drained at 50m above ground and I was lucky to find the crash site. Wings have survived but fuselage is broken in half. I changed battery and fly again after tape recovery, performances was not affected.
I liked very much the landing , during final approach pull stab gently and the plane lift the nose and land on the grass.
I was alone (except and old RC guy not able to record a video) so no video this time.

Comments deleted.

hy.
I printed all parts with 0.6 nozzle, 1 perimeter, 105% flow, 2 layers top/bottom in PetG filament. Very strong. with 0.4 nozzle, all parts its very flexible :)

U have 1 problem with design: need to insert Bowden Tube before glue fuselage parts!!!! otherwise it will not be possible to insert later.

Do you have a weight list for parts printed with 0.6 nozzle & PETG? I know PETG is stronger compared to PLA.

You're right about bowden tube. I succeded in installing the bowden because I removed mayor part of the 2 top/bottom layer before gluing. Next revision will include two tubes in the printed plastic so no more bowden will be required.

not yet, but I will weigh the printed pieces.
anyway, congratulations on the project, is what i need.

Great desing...Thanks, Is it just Cura or does part F02 need to have the hole cut into it?

I used Slic3r but Cura should be ok. For printing it's necessary the thin wall also inside canopy. After printing you have to remove manually

Looks great, I was a little disappointed with the ahi.. so sold it. However this looks good.

I was just printing it and the F04 is too large for the printer. The same with W01 and W03. It there any chance of resizing them so they can be printed on a 210mm x 297mm x 210mm volume..?

Thanks for the design..

Kris

My design is based on my delta printer with a bed of 200mm diameter (180mm usable) and 310mm of Z (280usable).
My advice is do not scale the parts since they have inner structure that can lead to wrong results.
You can try to use for example Slic3r to cut the bigger (Z) pieces in sub parts and save to new stl. Of course there is a bit of work in reassembling after printing.

Thanks for the advice, slic3r worked well.. I have printed the fuz and am now on to the wings. Thanks for a great looking design. I think its going to work well. I especially like the all flying tail...

Thx

Be careful: Allen_g30 reported to me that it's very difficult to insert the bowden cables into the fuselage after joining the parts. Place the cables before gluing.

It's great. Thanks. Could you let me know which 3D modeling software you used ? The model is impressive.

thanks a lot. there are not so may free design around. I used Rhinocers for design

I've been using Rhino for since version 2. Nice work!

Thanks ChrisAdams Tas. Hope to maiden soon.

Fantastic. I have an Ahi and it's not very efficient; the airframe bends and absorbs flight energy. This version together with strong spars will be brilliant.

Thanks Freeflight.