As an engineer in the field of epoxy composites I must stress, that it is highly advisable to use proper protection gloves, when you handle epoxy. I have seen far too many colleagues with high allergic response to epoxy from earlier skin contact to this substance. Thin nitrile gloves are not removing your excellent handyman skills ;-)
Some time is better to work without gloves but use tool and don't get contact with the epoxid! Epoxid under gloves are so wors! Work clean und Fresh air on the hand/skin is much better. I bought myself a 3M Helmet with extern blower. It's amazing! I've got allergy against different dust. 😑
My old neighbor builds and flies these (minus the motor), I've seen him fly one for an hour and a half straight off a single throw once, he competes regularly with them. The craftsmanship of these hand tossed glider planes is on another level, I'm routinely amazed by how perfect and smooth the carbon wings end up. I've always been into flying freestyle drones and would like to get into some wings, though I'll be leaving the gliders alone for a while lol.
I have not flown since my college days in the 80s. Your video makes me want to get back into it. I still have my old gear and Aquila glider but a drunk driver put an end to any further flying trips. The area sure looks like the sod farms south of Huffman Texas.
I am always impressed with your projects. I love building planes so you encourage me to be more professional in this field and update myself with modern tools like yours. I hope your channel grows more and more and rewards all the good work you enjoy and kindly share with us.
Thank you very much for these beautiful wishes and words. I myself hope too that my channel will grow and that one day I will be able to dedicate myself 100% to the RC field and RU-vid
Ok, I'm buying a food preserver. I wanted to give one of those hand held ones a try. Mind you I was only fiberglassing balsa tail planes but, even in the bag with just pressure turned out nicely. Awesome video!
A great video, definitely inspired me to give it a try. All the printed bits done in PETG, and will have a go at vacuum bagging when the parts get here. Quick question: Can you post a picture of the front end? I'm having difficulty working out how the motor mounts to the frame with the m-plate, cone-help ring and spinner.
As someone who builds, flies, and repairs competition F3K gliders, I have a series of questions for you. 1. Why not a bias weave on the wings and tails? The bias would allow for a stiffer part in torsion. 2. Why not kevlar hinges on the tails and wing? 3. Why the 60gsm fabric on the tails? Glass tails are typically fine 4. Why didn't you use 3m77 to adhere the glass LE reinforcements to the core? 5.Why no beds to hold the wings while bagging to prevent warps? 6. Why no shear web in the wings? 7. Why bottom drive for the wing servos? This exposes the linkage unnecessarily.
@@markoroolaid they're very good questions though, why wouldn't you explain the design choices you made? And if you later realized you didn't make the best possible design choices, why not admit it and learn from them?
Amazing! Beautiful. I'm curious about building sub-250g models (so I don't have to run the new Remote ID), and it looks like this one is really close! If I didn't need the camera, I could shed about 70g? Maybe scale it down a little?
Very nice! What type of plastic layer do you use in between the carbon and the vacuum bag? Seems like mylar but mylar would have a hard time conforming to the wingtip shape
I just made a wing with this method but with balsa sheet for the bottom and for the leading edges and foam in the middle but with normal glue epoxy 🤣I used ptfe boden tube and ran through the foam and put Petg filament through the tube as flexible linkages for seamless single servo ailerons works pretty good I did 3d print spares instead though as it was abit time consuming and im not going through that much effort again what foam are you using seems to cut really good
Hello Very interesting comment, thank you for that. I used Styrofoam foam to fill the stabilizer and wing filler. It is good to mill. interbauen.ee/styrofoam-250sl-a-n-80-pakk.html
Great vid. What type of laser do you use to cut the carbon cloth? Was the main reason for high T filament more mechanical stability (since there are some other CF cheaper types)?
hi, CO2 laser 130w But you can cut really, really thin carbon fabric, You can also make it from other filaments, but nylon CF is my favorite. Especially now Bambu Lab PAHT CF
What is the opaque plastic? That you put the wax on? You have blue foam, carbon fiber, the coating, and then bag. It keeps the epoxy from sticking to the bag, and leaves a smooth finish.
Is that a 3d printed wing joiner? Have you tried that with a DLG launch? I think I would prefer 3d printing a wing alignment jig and using CF/Epoxy to join the wings. Beautiful plane.
Beautiful fabrication. It appears you have installed the horizontal stabilizer upside down (that is to say, camber curvature on top). Looks like great fun to fly.
If you use nylon CF filament, the strength is super good. It is certainly not as light as making it with carbon and a mold, but at the same time it is very easy to 3D print it.
Awasome work (and the black mamba is also terrific :-)) ! I've never made a carbon-formed polyester core model, but the quality of your video and the tip about using a vacuum packing machine really makes me want to give it a go. A few questions: 1°) on the leading edge of the stab, do you use fiberglass or peel ply (the material seems to be adhesive) ? 2°) The stab core seems to be made of styrifoam and the wing cores of polyester. Is there any particular reason for changing materials? Thank you in advance for the time you will pass to reply, and thank to share all your 3D model !
I used fiberglass on the front edge. I tried to fix it with a thin 2-sided tape, but it is not necessary. With the resin stays very well. Styrofoam is very suitable for both wings and stabilizers. I myself used another material on the wings, because I had it at home ;)
Hello Marko, to check : - for the vertical stab you provide two files, but i don’t see any difference between them ? - stab is 330 x 81 with 3 mm thickness. - vertical stab is 233 x 115 with 3 mm thickness. - wings are 750 x 165 with 10 mm thickness at the emplanture. thank you in advance for your kindly help.
Great video and great build! I don't get the main wing build though... You cnc'd the foam core top side and put it in a milled bottom part? Can you explain how you got the bottom shape of the profile?
Great build! I'm currently building it myself from the CAD files you generously included. However - I can tell that the boom (arrow shaft) is 7.6mm but - how long is it? cheers
Marko im impressed by your skill level i only just got into 3d printing finding fusion 360 a steep learning curve could you send stl files for fuselarge thx in advance regards Tim from australia
@@markoroolaid which slicer did u take? Cura? Can u give some details on how to print the fuselage? Thickness of the wall? Support. How long it take for u to print all the parts? Thanks
Great job you are very skilled. You don’t use the throttle stick for flaps? I fly a Vortex and I have the motor on a switch. I have been flying gliders for ever and the flaps are always on the left stick. How many day did it actually take to build it.
The construction of the aircraft took 1 week, including drawing. Hours about 24h. The desktop must be clean at all times, that's the rule, it's the only way to make beautiful planes :)
Great build video BUT! No gloves????? Really? YOU can make that choice and risk building a reaction over time but you shouldn't set an example to others for it.
hi,Congrats for your job and for shairing your design / built. May I have the settings for 3d print the parts ? For example : how many perimeters for fuselage 1-2-3 ? and infill density for fuselagerame ...etc
Hello. I myself also think about whether it will succeed or not. 60g/m2 was not a problem for cutting. I put wet cardboard under the cloth to prevent a flame. i have a 130w co2 laser. parameters were: speed 50mm/s and power 60%. I haven't tried cutting thicker fabric, there might be problems there, but I don't know
@@markoroolaid The 130W is surely helping your cause, Still I am ipressed that it worked. I have tried to cut some 2x2 3k twill with a 60w, no luck. Just a mess.
DLG? “Discuss launch glider” I don’t know how someone would be able to grip that beautiful wing to spin it, and I didn’t see a handle. You did say “style” in the title but at that point just call it a powered glider.
7:27 is this fishing line or a thin wire? how it comes that ur able to steer in both directions? i dont understand LOL! realy nice work by the way. thank you for sharing!
that is wire. The elevator and rudder are equipped with a miniature spring. Good explanation ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-dH6k7R49tZc.html
can anyone explain how he gets the elevator and rudder to work when the wire push rod is so thin, shouldn't it not work because of too much slack? if he uses a spring to keep it tense where and how?
Never seen carbon fiber like that, nor have I ever seen it laid up the way you did. Are you sure this is carbon fiber and not just something you think is because it kind of looks like it?
It's just spread tow textreme carbon, but he didn't lay it up correctly, the bias should be at 45° to the span of the wing for increased torsion strength.
I downloaded the stl files, but when I checked the dimensions in Autodesk Inventor, I found that the parts are huge. Example: the diameter of the motor-mount plate is D770,93 mm. What could be the problem??? Thank you.
Fantastic! can I ask what the contraption you are using for vacuum bagging the tail surfaces is? It looks like some kind of heat sealing vacuum thing? certainly a lot neater than the pump and sealant that I currently use.
hi Andy. Vacuum machine for vacuum bag with channels 30cm wide www.pakendikeskus.ee/en/packaging-machines/vacuum-machines/vacuum-machine-for-vacuum-bag-with-channels-30cm-wide
Downside: You can't heat-cure it. If you e.g. cover the whole setup in a heat blanket the remaining air expands and you vacuum is gone. Also they aren't that much cheaper than a vacuum pump.
Hi Marko, congratulations for your channel and the clean work that you do in all your planes. Would it be possible to upload the fusselage part in other format than stl. I would like to make some adjustment but not possible as I am using Fusion360 and the imported STL as mesh creates too much poligons. It would be fantastic and I would apreciate it. Thanks.