Great job sticking with it and getting this flying well! That was quite a positive transformation from the first prototype to the final version. I would recommend not selling these files or giving them away, however. Even though the UMX Timber is now discontinued, the “Timber” name is owned by Eflite/Horizon Hobby. But now you’ve proven you can design a 3D printed aircraft and make it fly, so keep it up!
Thank you Eric, I appreciate the comment. It was a fun project to get flying well. Thank you for letting me know about Horizon Hobby owning the name I was not aware of that. I am looking forward to seeing more of your designs in the future. Cheers
@@TroyMcMillan keep up the good work man, love the content. It would be cool to collaborate on a video sometime. Feel free to email me any time to brainstorm on some content collaboration
The wheels and strutts is what it needed the weight and Drag... to help with the pitching up! I'm going to start doing this, this is interesting,,,, I'm a Balsa builder, this seems practical, and educational!
I admire your dedication to push through the failures until you dialed-in the final design! I wonder if a spring and cable assembly might be the ultimate shock absorber for the landing gear-I think you made the right choice with ditching the cross supports in your final design so that the gear can flex. My favorite part was hearing your “camera crew’s” excitement when your prototype with the landing gear flew-it’s always a cool feeling when you’ve impressed someone else with something you did 😁👍
Yes that is my favorite part also that was my wife filming it. She was there to film all the crashes and watch me rebuild them all so she was excited to see it fly. Thank you for the comment Cheers
Persistence pays off! Your flying skills improved as this project progressed! Hand launching gives you almost no time to make corrections, so throw with the left hand. Some suggestions: Install springs into the landing gear, fly in a larger space, over grass, never fly without ailerons. Keep making great videos and great planes!
Congratulations! This is perhaps the first video showing the process of trial and error and see it through success by making modifications after identifying what went wrong, going back to the drawing board (old school expression - in this case: going back to Fusion 360). Every attempt / failure came with improvements, what is beautiful is that your UMX Turbo Timber is now your platform for future improvements/experimentation/modifications. Most videos online show that a plane is built and flies in the first attempt...that is not realistic (in my opinion). There is always tweaking even when you purchase an ARF...for a scratch built, it takes a lot more tweaking.
Thank you so much for this comment, That is exactly how I feel about videos on UA-cam. I am definitely learning as I go and not every flight is successful the first time. Thank you again for the comment. Cheers
Most entertaining video I've seen in a while. You just kept putting them up in the air... it was excellent. Really well done modifying the design until you got a good flyer. Thanks for this. Great stuff.
Initial impression whenever I see guys print their own plane ..Cool! But after I see most crashes require complete or most re-builds and how long it takes to re-print it, I'll mostly stick to foamies. Although I might try and do an amalgamation of PLA, TPU and foam one day.
You are my new go to 3D RC Plane Guy. I am so impressed you never tried Fusion 360 and made it work. But the most amazing thing is that you kept at it until success.
Amazing!! I think I need a little more experience but I too want to design my own plane. But you did really good work and I hope to see more of your designs!!
Thank you for sharing your failures. Made me think this is exactly how it would go for me but way worse. I liked & subscribed. And great job staying positive !!
You put a lot of work into this! I think this plane has a lot of potential. I'd like to see you make one with a smaller power system. I feel like it's twitchy from the excess weight. That and with so much power even the slightlest error in thrust line will make it do really weird things. If you print most of it with single wall vase mode and use the stock UMX 180 motor (Like 1/5th the size) It'd be an amazing plane.
Thank you for this comment, Yes I agree it is to heavy. I am planing on printing it in LW-PLA and changing the motor and battery to save some wight. I also think I am going to change the wing a bit to have flaperons.
CG for this type of wing should be 20-25% of the wing chord or 20-25% back from the leading edge at the wing root. Other wing types can get more interesting.
Flaps are very important for cubs and it helps with the low speed capabilities like you were having problems with. Getting flaps down to 30 40 or even 50 degrees can drastically improve the performance at low speeds and is well worth the extra weight.
Ya I thought about trying to make something like that work. I just kept it light wight and simple. For a larger version definitely will do something like that.
@@TroyMcMillan Something to consider. Printed hooks instead of bars connect with Dental Braces Bands Pulled through a short piece of guide tube(for look)
Fantastic journey you took us on, Troy! I've used my printer to support my quadcopter and fixed wing kits, for FPV camera gimbals and such, but dang... this is next level, and heartily appreciated. Merry Christmas, can't wait to watch more epic creations next year.
@@elijahf111 Yes I agree it has to big of motor. It was eclectics I had laying around from another build. So now that the plane flies I think I will change the motor and prop. Print it out of LW-PLA and then It will fly even better.
Ya exactly, part of the reason this plane took so long for me to finish is I would go fly it, crash it, reprint it out and hang it back on the wall. What planes have you designed?
@@TroyMcMillan Sorry it took so long, hectic week. Basically fairly simple designs like Super Cub"s and Cessna's out of foamboard. I think now I would be able to make my own designs fly. Between kids, work and life I only have a few minutes a day to tinker and it always makes me a little jealous on how many planes you've built and flown in the last few months. Ive got the Savage Bobber all printed and mostly assembled but will still probably take another month before I can finish and fly. Ive gotten good at tuning my printer and just finished a direct drive extruder mod to my ender 3. I did a test print of an Eclipson curved wing tip and man it is almost perfect! If you can get a direct drive mod for one of your printers do it! Thanks again Troy!
@@TroyMcMillan Not to beat a dead horse but thinking out loud here, where your wing is attached to the fuselage could you do a tab and slot design similar to what Eclipson uses? Or even a small printed dowel pin to give a little more rigidity to wing and fuse? You've done a great job not trying to downplay all your hard work/design. Have a great day! Merry Christmas!
@@EquinoxRC No problem at all I definitely understand a busy week. Sometimes the simple designs are the best flyers and the most relaxing to take out to the field to fly. After building all these nice 3D printed planes I still grab my foam timber to take out from time to time just to buzz around and have fun with. It is definitely a long process to build planes for sure. The only reason I have been able to build so many planes recently is because I lost my job do to Covid 19 in April. So needless to say I have had a lot of time on my hands and building airplanes has made this time go a bit easier. It is funny you say that about the direct drive. I have had my eye on one for a long time and I just ordered one yesterday. I will be using the Artillery Sidewinder X1 I am looking forward to trying a direct drive printer. Thank you for the comment have a Merry Christmas and stay healthy
@@EquinoxRC Yes I definitely think that would be a good idea to add some more support to the wing. I started on this design a long time ago before I have recently been building so many 3D printed airplanes. I have learned a lot of new techniques from all the planes I have built. So I will definitely need to make a few adjustments to this build to fine tune it a bit more. Have a great Holiday Cheers
fyi airplanes with rudder only need more dihedral I see you have changed that.maybe a little more ailerons will help great video those models are awesome
For the landing gear, why not use the X bracing and make it like an internal shock from an r/c car? Make the bottom be the shaft and spring perch portion, then the upper part can hold a spring and the casing. Make it to where when assembling you attach a cap to it and then it either glues or screws onto the rest of the assembly... just an idea.
Since you can't print the wings in the strongest orientation (lying) without lots of infill or support you might want to try a different polymer. Polypropylene apparently has much better layer adhesion, so your wings won't break so easily.
I would just go with carbon fiber tubes for those struts. You could CA glue those in there. You could also make the whole assembly out of TPU. It will take a beating and absorb lots of energy. I want to make a rear pusher with a TPU nose...should hold up to almost anything.
You may consider tpu for the landing gear along with strengthening struts.. I've seen it done on another video and it gives good suspension due to the flexibility of tpu. Your being very hard on that landing gear..
Ya I thought of doing that. I first made the wing the same as the ump timber. After flying it a bit more and having to land it so fast. I am going to change the wing to have flaperons. Thank you for the comment. Cheers
Great video I had overlooked this video, as it was published before had discovered and subscribed to your channel. Many great lesson about the process and journey to a RC build here. Would love to see you do a follow-on to the TM Turbo Timber build printing in LW-PLA and perhaps applying some of the design tricks you have learnt since this initial design. Thinking a contributing factor to stall/spins on first few flights was the weight and CoG of initial builds. I've experience similar, too heavy or just tail heavy of a build. (as is so easy to do. LOL) Great lesson in persistence paying off. Seeing where your channel is today. :) For landing gear cross-braces, wondering if using rubber bands provide flexibility while adding support?
Did you draw the parts as solid bodies and set the infill zero in slicer ? or did you draw surface bodies like 3DLabPrint's drawings ? I tried drawing surface bodies and slice in Surface mode but its difficult to draw in surface modeling.
I started my flying on the umx timber loved it didnt love the linear servos how do you feel about releaseing the stl to the public i would love to print one for my two sons to learn on
I would not recommend this plane to learn how to fly with a larger wing foam plane would be much better plane to learn to fly with. Also I am not planning on releasing the files for this build.
Could you post a video on how you designed the files you used to build the plane. The short clips you show at the beginning look very intriguing. I want to design and build some small scale gliders and the only weight in them will be the smallest video cam and Tx I can find. I plan to use Rx’s from Horizon UMX models that are pretty much beaten to hell. there’s nothing lighter that’s widely available and I could easily build a balsa version but I’ve got my Artillery all set up waiting.
Would you be able to make a new servo/electronic tray and firewall to fit the guts from an eflite umx turbo timber? I have a crashed umx turbo timber my friend gave me and I think if I printed this plane it would fly very nicely with the eflite guts, please let me know!
Oh I also have the landing gear from the umx turbo timber, please let me know if you could get those to fit without modifications to the plane after I print it!
To learn to fly RC definitely would recommend a foam plane first. Most of them have gyros and stabilization to help with learning to fly. But if you do want to print a plane to learn to fly. I would recommend the Model A that I built it flies the best and would be a good beginner flyer. Print it out of LW-PLA. That will make it fly the slowest. I will be building a good trainer 3D printed plane next week. You may want to wait for me to get that one done to build it for a first plane. Cheers
@@ODIRFPV Ok nice, I have only built and flown the Model A. So my recommendation would be the Model A. I will be building Eclipson new model the Model C next week. It will be a bush plane you can see a picture of it on my Instagram story. If you build the Model A there is a discount code in the description of the video on my channel you can use.
at 10:41, note the (dihedral) at the underside at the wingtips, of a cub or cessna. upload.wikimedia.org/wikipedia/commons/thumb/5/53/Piper_J3_Cub.svg/1200px-Piper_J3_Cub.svg.png
I am a professional kit designer with aircraft in the marketplace. See RadicalRC.com I will help you if you like. First lesson. With a conventional tail behind airplane that looks relatively normal (like what your working on) and a constant cord (Hershey bar wing) you calculate CG thusly. Measure cored (front to back of wing. Multiply cord by .3 (30%) to get max rearward CG. Multiply cord by .25 (25%) to get most forward CG. Put two marks on wing - measure from front. Balance between these two marks. Why it flew better when you added the landing gear is you moved your CG forward with it's weight. But still not far enough forward. A tiny bit behind 30% will turn it into an unflyable monster. Get this right and 90% of your problems are solved. I really like what you've done so far. I'm into 3d printing but have done no aircraft with that method. Very hard to keep them light enough to fly well. But I encourage the development. Another thing you could do is increase he thickness and shells in front of the CG. Adding material there will help you. 3D printing isn't good for everything. Landing gear needs to flex for example. Trying to make it do everything might imply the entire technique is poor to your viewers and I know that isn't your intention. You need some grain span wise in the wings to make them stronger. A small hole that is printed oversize and a thin carbon rod slipped in will go a long way. Keep at it.
Thank you for the tips on my build. I agree the gear moved the CG forward and that made it much better, I still have some more thing I can do to try and improve this model. I will try some of you tips out. Thanks again
you SHOULD be finding out HOW the model GLIDES and STALLS. you Should be TRIMMING the elevator; for a NOMINAL cruising airspeed.!!!! the model CLEARLY has Chronic dom ISSUES.
It flew seems like a win to me . I have noticed Troy isnt the first you tuber you have done this to giving your opinion once is productive rambling on is trolling to the point of being a pain in the asking you to back off its his channel and he didnt give up like we wish you would
Is there any chance you would share your final print files with those of us who want to experiment further?
yes please!
So cute plane
Files? Would love to play with this.
Thank you so much. You inspired me alot!!! Have a great day brother.
Thank you Nyein, I am very happy to hear this. Cheers
Thanks for the real world experience that is crazy bad luck
Great video. It was interesting following the process to get to a successful flying model.
I’m surprised that you got an 3d printed airplane that small to fly!
Ya it was a bit of challenge as you can see but it did work after many crashes and reprints. :) Cheers
Great job sticking with it and getting this flying well! That was quite a positive transformation from the first prototype to the final version. I would recommend not selling these files or giving them away, however. Even though the UMX Timber is now discontinued, the “Timber” name is owned by Eflite/Horizon Hobby. But now you’ve proven you can design a 3D printed aircraft and make it fly, so keep it up!
Thank you Eric, I appreciate the comment. It was a fun project to get flying well. Thank you for letting me know about Horizon Hobby owning the name I was not aware of that. I am looking forward to seeing more of your designs in the future. Cheers
@@TroyMcMillan keep up the good work man, love the content. It would be cool to collaborate on a video sometime. Feel free to email me any time to brainstorm on some content collaboration
Just change the name
Very nice baby plane. Good Job!
Thank you
Nice video and good job the designing and printing of the plane. Seems like a lot of the crashes could have been avoided by just balancing the plane.
Great Job Troy loved it Merry Christmas
Merry Christmas
The thrust and pitch angle on those small high rpm motors is knarly way to the left and downward.....it's a must
The wheels and strutts is what it needed the weight and Drag... to help with the pitching up! I'm going to start doing this, this is interesting,,,, I'm a Balsa builder, this seems practical, and educational!
I admire your dedication to push through the failures until you dialed-in the final design! I wonder if a spring and cable assembly might be the ultimate shock absorber for the landing gear-I think you made the right choice with ditching the cross supports in your final design so that the gear can flex. My favorite part was hearing your “camera crew’s” excitement when your prototype with the landing gear flew-it’s always a cool feeling when you’ve impressed someone else with something you did 😁👍
Yes that is my favorite part also that was my wife filming it. She was there to film all the crashes and watch me rebuild them all so she was excited to see it fly. Thank you for the comment Cheers
Persistence pays off! Your flying skills improved as this project progressed! Hand launching gives you almost no time to make corrections, so throw with the left hand. Some suggestions: Install springs into the landing gear, fly in a larger space, over grass, never fly without ailerons. Keep making great videos and great planes!
I love this trial and errornautics!
Congratulations! This is perhaps the first video showing the process of trial and error and see it through success by making modifications after identifying what went wrong, going back to the drawing board (old school expression - in this case: going back to Fusion 360). Every attempt / failure came with improvements, what is beautiful is that your UMX Turbo Timber is now your platform for future improvements/experimentation/modifications. Most videos online show that a plane is built and flies in the first attempt...that is not realistic (in my opinion). There is always tweaking even when you purchase an ARF...for a scratch built, it takes a lot more tweaking.
Thank you so much for this comment, That is exactly how I feel about videos on UA-cam. I am definitely learning as I go and not every flight is successful the first time. Thank you again for the comment.
Cheers
Most entertaining video I've seen in a while. You just kept putting them up in the air... it was excellent. Really well done modifying the design until you got a good flyer. Thanks for this. Great stuff.
Thank you David
Initial impression whenever I see guys print their own plane ..Cool! But after I see most crashes require complete or most re-builds and how long it takes to re-print it, I'll mostly stick to foamies. Although I might try and do an amalgamation of PLA, TPU and foam one day.
You are my new go to 3D RC Plane Guy. I am so impressed you never tried Fusion 360 and made it work. But the most amazing thing is that you kept at it until success.
Thank you Robert I appreciate the comment. Cheers
nicework
Amazing!! I think I need a little more experience but I too want to design my own plane. But you did really good work and I hope to see more of your designs!!
Thank you Dylan, I deplane on doing some more designs when I get some free time. It takes a bit of work to do the Cad drawings. Cheers
Awsome
Thank you for sharing your failures. Made me think this is exactly how it would go for me but way worse. I liked & subscribed. And great job staying positive !!
You put a lot of work into this!
I think this plane has a lot of potential. I'd like to see you make one with a smaller power system. I feel like it's twitchy from the excess weight. That and with so much power even the slightlest error in thrust line will make it do really weird things.
If you print most of it with single wall vase mode and use the stock UMX 180 motor (Like 1/5th the size) It'd be an amazing plane.
Thank you for this comment, Yes I agree it is to heavy. I am planing on printing it in LW-PLA and changing the motor and battery to save some wight. I also think I am going to change the wing a bit to have flaperons.
CG for this type of wing should be 20-25% of the wing chord or 20-25% back from the leading edge at the wing root. Other wing types can get more interesting.
Thank you for the tip. Ya the first few attempts the CG was pretty far off.
Flaps are very important for cubs and it helps with the low speed capabilities like you were having problems with. Getting flaps down to 30 40 or even 50 degrees can drastically improve the performance at low speeds and is well worth the extra weight.
Landing Gear Struts should be a Bungee system to flex/expand.
Ya I thought about trying to make something like that work. I just kept it light wight and simple. For a larger version definitely will do something like that.
@@TroyMcMillan Something to consider. Printed hooks instead of bars connect with Dental Braces Bands Pulled through a short piece of guide tube(for look)
@@crxess Dental braces bands is a good idea I never thought of that. Thank you
Fantastic journey you took us on, Troy! I've used my printer to support my quadcopter and fixed wing kits, for FPV camera gimbals and such, but dang... this is next level, and heartily appreciated. Merry Christmas, can't wait to watch more epic creations next year.
this should definitely get printed in LW-PLA
Ya I have some LW-PLA I am going to print it in LW-PLA after I crash the finish wight one. :)
@@TroyMcMillan also that thing looks way over motored, if it were me i'd dry a 5x4 3 blade with a smaller 2400kv motor
@@elijahf111 Yes I agree it has to big of motor. It was eclectics I had laying around from another build. So now that the plane flies I think I will change the motor and prop. Print it out of LW-PLA and then It will fly even better.
Great video! I 'm glad you made it fly! My own designs have never flown, I always give up to early lol. Take care.
Ya exactly, part of the reason this plane took so long for me to finish is I would go fly it, crash it, reprint it out and hang it back on the wall. What planes have you designed?
@@TroyMcMillan Sorry it took so long, hectic week. Basically fairly simple designs like Super Cub"s and Cessna's out of foamboard. I think now I would be able to make my own designs fly. Between kids, work and life I only have a few minutes a day to tinker and it always makes me a little jealous on how many planes you've built and flown in the last few months. Ive got the Savage Bobber all printed and mostly assembled but will still probably take another month before I can finish and fly. Ive gotten good at tuning my printer and just finished a direct drive extruder mod to my ender 3. I did a test print of an Eclipson curved wing tip and man it is almost perfect! If you can get a direct drive mod for one of your printers do it! Thanks again Troy!
@@TroyMcMillan Not to beat a dead horse but thinking out loud here, where your wing is attached to the fuselage could you do a tab and slot design similar to what Eclipson uses? Or even a small printed dowel pin to give a little more rigidity to wing and fuse? You've done a great job not trying to downplay all your hard work/design. Have a great day! Merry Christmas!
@@EquinoxRC No problem at all I definitely understand a busy week. Sometimes the simple designs are the best flyers and the most relaxing to take out to the field to fly. After building all these nice 3D printed planes I still grab my foam timber to take out from time to time just to buzz around and have fun with. It is definitely a long process to build planes for sure. The only reason I have been able to build so many planes recently is because I lost my job do to Covid 19 in April. So needless to say I have had a lot of time on my hands and building airplanes has made this time go a bit easier. It is funny you say that about the direct drive. I have had my eye on one for a long time and I just ordered one yesterday. I will be using the Artillery Sidewinder X1 I am looking forward to trying a direct drive printer. Thank you for the comment have a Merry Christmas and stay healthy
@@EquinoxRC Yes I definitely think that would be a good idea to add some more support to the wing. I started on this design a long time ago before I have recently been building so many 3D printed airplanes. I have learned a lot of new techniques from all the planes I have built. So I will definitely need to make a few adjustments to this build to fine tune it a bit more. Have a great Holiday Cheers
fyi airplanes with rudder only need more dihedral I see you have changed that.maybe a little more ailerons will help great video those models are awesome
Thank you Douglas
For the landing gear, why not use the X bracing and make it like an internal shock from an r/c car? Make the bottom be the shaft and spring perch portion, then the upper part can hold a spring and the casing. Make it to where when assembling you attach a cap to it and then it either glues or screws onto the rest of the assembly... just an idea.
Since you can't print the wings in the strongest orientation (lying) without lots of infill or support you might want to try a different polymer. Polypropylene apparently has much better layer adhesion, so your wings won't break so easily.
Thank you I will give that a try
LOL, did you stick the CG marker on the fin 😁😁😁
I would just go with carbon fiber tubes for those struts. You could CA glue those in there. You could also make the whole assembly out of TPU. It will take a beating and absorb lots of energy.
I want to make a rear pusher with a TPU nose...should hold up to almost anything.
You may consider tpu for the landing gear along with strengthening struts..
I've seen it done on another video and it gives good suspension due to the flexibility of tpu. Your being very hard on that landing gear..
You need flaperons it slow plane down many easer landing
Ya I thought of doing that. I first made the wing the same as the ump timber. After flying it a bit more and having to land it so fast. I am going to change the wing to have flaperons. Thank you for the comment. Cheers
I love the way this plane flies and looks! Any chance you could release the files you designed for this? I'd love to build it.
Regards,
the files
I don't have the files available right now.
@@TroyMcMillan can you provide the plans for this plane please.
Great video I had overlooked this video, as it was published before had discovered and subscribed to your channel. Many great lesson about the process and journey to a RC build here.
Would love to see you do a follow-on to the TM Turbo Timber build printing in LW-PLA and perhaps applying some of the design tricks you have learnt since this initial design.
Thinking a contributing factor to stall/spins on first few flights was the weight and CoG of initial builds. I've experience similar, too heavy or just tail heavy of a build. (as is so easy to do. LOL) Great lesson in persistence paying off. Seeing where your channel is today. :)
For landing gear cross-braces, wondering if using rubber bands provide flexibility while adding support?
Great work. Thanks for another build video. Are you making the stl files available?
Did you draw the parts as solid bodies and set the infill zero in slicer ? or did you draw surface bodies like 3DLabPrint's drawings ?
I tried drawing surface bodies and slice in Surface mode but its difficult to draw in surface modeling.
I draw a solid body and slice holes in the body.
You are an awesome teacher. What is the weight of this model? Did you use light weight pla?
I started my flying on the umx timber loved it didnt love the linear servos how do you feel about releaseing the stl to the public i would love to print one for my two sons to learn on
I would not recommend this plane to learn how to fly with a larger wing foam plane would be much better plane to learn to fly with. Also I am not planning on releasing the files for this build.
@@TroyMcMillan I'll pay you for the files lol this plane looks really cool
@@aidennigro7887 Sorry I am not selling them right now.
I think the umx is copywritten. But thank you the video was awsome .
I think it needs flaps tbh, other than that pretty sweet!
very cool! This is such an awesome hobby I love RC planes. How much more does it weigh than the foam version?
Ya it is a fun hobby for sure. The foam version weighs about half of what the 3D printed one weighs.
I apologize if I missed it but, how much does this plane weigh? Also awesome job on the plane, I really enjoy the videos!
Could you post a video on how you designed the files you used to build the plane. The short clips you show at the beginning look very intriguing. I want to design and build some small scale gliders and the only weight in them will be the smallest video cam and Tx I can find. I plan to use Rx’s from Horizon UMX models that are pretty much beaten to hell. there’s nothing lighter that’s widely available and I could easily build a balsa version but I’ve got my Artillery all set up waiting.
Whoops... the models are beaten form too much showing off. The Rx’s are in excellent condition.
Can we get the files
I am still working on a bit of fine tuning. I am working on adding flaperons to the wing to be able to land it a bit slower.
Do you can share you file 3D printing this model?
u need put spar throught wing.
There is structure printed into the inside of the wing to act as a spar.
@@TroyMcMillan u need new 1 to go through inside fuselage and connect otherside wing like normal rc plane to more stronger than glue
@@nizarnadzir Ya true that is a good idea I will try that out.
Would it be possible to scale this up to a 1.3 meter?
Would you be able to make a new servo/electronic tray and firewall to fit the guts from an eflite umx turbo timber? I have a crashed umx turbo timber my friend gave me and I think if I printed this plane it would fly very nicely with the eflite guts, please let me know!
Oh I also have the landing gear from the umx turbo timber, please let me know if you could get those to fit without modifications to the plane after I print it!
Do you have the stl files for this final model
tail heavy but awesome
The first few attempts were a bit tail heavy. After some adjustments I was able to move the CG where it should be. Cheers
@@TroyMcMillan hi!!! greetings to you!!!!!! :)
@@andreadellamico1217 Hello to you Andrea
at 6:19, Giant, full-strip AILERONS !!!!!
excellent contribution, I want to print a trainer to learn to fly, what do you recommend?
Buy a cheap foam flyer rtr then fly 3D printed
To learn to fly RC definitely would recommend a foam plane first. Most of them have gyros and stabilization to help with learning to fly. But if you do want to print a plane to learn to fly. I would recommend the Model A that I built it flies the best and would be a good beginner flyer. Print it out of LW-PLA. That will make it fly the slowest. I will be building a good trainer 3D printed plane next week. You may want to wait for me to get that one done to build it for a first plane. Cheers
@@orazionastase8894 thanks my friend
@@TroyMcMillan do I have model Z or do I get model A? I've already flown a bit so I wanted to try 3D
@@ODIRFPV Ok nice, I have only built and flown the Model A. So my recommendation would be the Model A. I will be building Eclipson new model the Model C next week. It will be a bush plane you can see a picture of it on my Instagram story. If you build the Model A there is a discount code in the description of the video on my channel you can use.
How many people out there would like someone to 3d scan and make files for old Cox planes?
Share STL files?
at 3:46, can you spell "the giant rudder is H E A V Y"
Pls files
at 10:41, note the (dihedral) at the underside at the wingtips, of a cub or cessna.
upload.wikimedia.org/wikipedia/commons/thumb/5/53/Piper_J3_Cub.svg/1200px-Piper_J3_Cub.svg.png
the plastic bullet
at 3:07, someone stole the MAIN SPAR. no wait, YOU DIDN'T MAKE ONE!!!
I am a professional kit designer with aircraft in the marketplace. See RadicalRC.com
I will help you if you like. First lesson. With a conventional tail behind airplane that looks relatively normal (like what your working on) and a constant cord (Hershey bar wing) you calculate CG thusly. Measure cored (front to back of wing. Multiply cord by .3 (30%) to get max rearward CG. Multiply cord by .25 (25%) to get most forward CG. Put two marks on wing - measure from front. Balance between these two marks. Why it flew better when you added the landing gear is you moved your CG forward with it's weight. But still not far enough forward. A tiny bit behind 30% will turn it into an unflyable monster. Get this right and 90% of your problems are solved.
I really like what you've done so far. I'm into 3d printing but have done no aircraft with that method. Very hard to keep them light enough to fly well. But I encourage the development. Another thing you could do is increase he thickness and shells in front of the CG. Adding material there will help you. 3D printing isn't good for everything. Landing gear needs to flex for example. Trying to make it do everything might imply the entire technique is poor to your viewers and I know that isn't your intention. You need some grain span wise in the wings to make them stronger. A small hole that is printed oversize and a thin carbon rod slipped in will go a long way. Keep at it.
Thank you for the tips on my build. I agree the gear moved the CG forward and that made it much better, I still have some more thing I can do to try and improve this model. I will try some of you tips out. Thanks again
at 8:20, it is NOT clear whether the upper-side elevator hinge tape is OPTIMALLY applied.
that is, zero-zero to the wing's Lower surface.
Where could someone get the files for this??
I designed it myself and I don't have the files available right now.
MAIN SPAR GOES AT THIRTY PERCENT OF CHORD.
at 4:25, OOOOPS STILL NO MAIN SPAR !!!!!!
super tail heavy! good try!
at 5:00, is the thrust line NOT zero-zero !!!!!!!!!!!!!!!
😂
at 9:30, PUT the MASS, in the Battery, AS LOW AS POSSIBLE!!!!
"a chain is only as strong as its WEAKEST link." LOTS OF WEAK LINKS, here.
at 7:47, control horn Not correctly made/configured. putting BEVELS Fore and aft is DUMBBB. at 7:55, STILL NO MAIN SPAR !!!!!
you SHOULD be finding out HOW the model GLIDES and STALLS. you Should be TRIMMING the elevator; for a NOMINAL cruising airspeed.!!!! the model CLEARLY has Chronic dom ISSUES.
I would like to see your designs David and how your worked through them...
It flew seems like a win to me . I have noticed Troy isnt the first you tuber you have done this to giving your opinion once is productive rambling on is trolling to the point of being a pain in the asking you to back off its his channel and he didnt give up like we wish you would
Why the hell would anyone want to “buy you a coffee” if you can’t even share plans? Lol