How to make a crash-proof 3D foam RC plane

[Ahoudijk]

Found it... ;-)



[Ahoudijk]

Is there a video of it flying?

[tomtortoise]

Would a Ni-Mh 7 or 8 cell battery make the plane too heavy to fly?

[hammydude12345]

@tomtortoise If the Ni-Mh weighs about 100 grams it should work, but lipo batteries are much more powerful for their weight.

[rcfoamypilot]

plans?



[hammydude12345]

@rcfoamypilot URL for the plans are listed on last 10 sec of video goto rcgroups /forums/showthread.php?t=15535­67#post20096433

[HondaMonster007]

How much does it weigh flying weight? Im looking to build one and trying to find the right motor/esc set up.

Thanks

[hammydude12345]

@HondaMonster007 It weighs 323grams = 11.4oz including everything but the battery. Google bm2408-21 and you will find lots of suppliers of this motor although many others will also work.

[HondaMonster007]

@hammydude12345 Thank! Can't wait to build one now :) I just hope it turns out as great as yours! lol

[bubastis9]

using a prop saver (an o-ring that allows the prop to swing over when it hits the ground) would prevent your broken prop problem--and you might be able to ditch the foam engine mount.

[hammydude12345]

@bubastis9 Yes I think a prop saver could help, but they only cost about $1 each. The foam protects the plane and motor.

[roberttreboranita]

great lookin plane...one of the best homemade ones i´ve seen and very well explained.

Happy new flying year to you! Rob

[hammydude12345]

@roberttreboranita  Thanks, best wishes to you also.

[peroxidal]

Also. How did you mount the motor?

[hammydude12345]

@peroxidal I drilled holes through the dense foam and mounted the motor with nylon zip ties, which will snap in a bad crash which saves the motor from damage.

[peroxidal]

I'm going to build this plane. thank you very much :)

[Marco101Garcia]

very good video i love how you explain the measurements of the plane :D ^_^

[hammydude12345]

@Marco101Garcia Thanks, I designed this plane because I hated the 3D kits with dozens of parts.

[Marco101Garcia]

@hammydude12345 haha same here lol im starting to learn how to make a plane so im looking for some cool or simple planes to build i have alot of foam, might as well make one instead of going to buy one from a hobby shop

[carstensonderskov]

Hi

Great job....thanks for sharing.

How thick is the foam in total your using.

Kind regards Carsten

[hammydude12345]

@carstensonderskov I used 3mm thick foam, but 5mm should also work.

[rickcbr900rr]

Why don't you cut the threaded part of the motor shaft off with a "Dremel" and install a $1.50 prop saver?

[hammydude12345]

@rickcbr900rr I did use a dremel to cut off the threaded shaft beyond the prop and holding nut. Guess I could try a prop saver, but 6 of these props cost about $10 so even breaking a couple a year is only a few bucks.

[SHADOW10621]

Great video and design. I'm going to steal some of your ideas for motor mounts to see if I can save my motors and props. Nice presentation. Thanks for sharing your ideas. Shadow

[hammydude12345]

@SHADOW10621 You're welcome. One an early crash I bent the motor shaft. Now I mount the propeller so that it is against the bell of the motor then I cut off shaft so it is just long enough for the nut to fit.

[Musharrafshah]

how much would you sell that to me for

[benhurberroa]

can you put your plans in a paper pdf for me to copy it and prepare it? is gonna be cool to have it. thanks

[hammydude12345]

@benhurberroa At the last 10 seconds of the video I have a link to RC group that will get you a PDF file that you can print.

[Nicelego]

Thank you.

[Nicelego]

What did you use for the remote

[hammydude12345]

@Nicelego I used a 4 channel 72mHz transmitter and receiver from Artech.

[killmanguy5]

where did you buy the foam please respond

[hammydude12345]

@killmanguy5 I got it from BPhobbies also see last 10 sec of video for more info.

[sentien13]

You dont mention placement of reciever or battery?

[PlayHiFi]

For MX druglords this has too much win!

[TheGeorgevt]

Have you ever considered using a pusher style design, like that found in a wild hawk rc plane? it might help you with the broken props issues

[hammydude12345]

@TheGeorgevt Yes, in fact most of my other planes are pusher props. But for 3D aerobatics like hanging on the prop you have to use a puller prop.

[rcfrenzydude]

did you use a 4ch receiver?

[hammydude12345]

@rcfrenzydude It was a 6 channel receiver, but I only used 4 channels.

[rcfrenzydude]

then if i want to build only one plane would you have to buy like five pieces of foam?

[majinvegeta800]

nice dude i like the wings!

[Nortone123]

Great idea with the motor mount!

[hammydude12345]

@Nortone123 Thanks! that foam really seems to make a big difference.

[oompaloompa349]

do you have a building plan?? Then its easyer to build for slow learners like me

[hammydude12345]

@oompaloompa349 No, I just traced it out on the foam board. The pieces are basically rectangles with cut-outs to make final shape. If you really get stuck perhaps I could trace on thin paper and mail to you.

[ChiIdKiIIer]

@xSaikusu lol man, haha! you're right but if you love your plane you shouldn't try that lol

[MX7XMXD]

@ChiIdKiIIer LOL i crashed mine after 10 secs of flight time.

i did love my plane tho, was a trainer :P

[bigtwit]

Where did you get the plastic laminated foam? And for how much?

[Sham2951]

Would like to try my first scratch build here... Can you email or link me the template of your plane please? Its a little bit unclear.. :( 

[hammydude12345]

@Sham2951 Sorry, I don't have templates. All pieces are rectangles, the dimensions are given in the video. When I get a chance I will list all parts and dimensions at the end of the video.

[pastrana2000]

I crashed it...

[10fantic]

Yup but the plane is now a flying brick

[hammydude12345]

@10fantic The foam disk, popsicle sticks, and tape together weigh about 1/4 of an ounce (7 grams), not quite a brick.

[saurabhudeshi]

BTW... Great Video!!!!

[hammydude12345]

@saurabhudeshi Thanks! Glad you like it.

[saurabhudeshi]

I am new to electric and foam planes.

What is the battery, motor, prop, servos that you have used on this plane?

Approx weight of plane?

I will be buying from BP hobbies, so if you suggest model numbers from their website, I can order the correct parts.

[hammydude12345]

@saurabhudeshi With all electronics, the plane weighs 320 grams (11.5 ounces). Here is list of parts: BM2408-21 outrunner brushless motor, GWS 10x4.7 propeller, Hitec receiver, 20 amp 7.4v brushless ESC, 7.4V 1300 mAh lipo battery, three 9g servos, 4 plastic clevis and 4 control horns, pushrods: two 14cm pushrods, one 13 cm, one 15cm. Note that many other motors, ESC, batteries, etc. will work. I bought electronics from Tower Hobbies.

[bryanzoro]

where it plans??

[tallguysd]

Great stuff keep up the good work! 

[thewanderer916]

can you make doop-de-loops with this?? I am a beginner, so dont mind my silly questions xD

[hammydude12345]

@thewanderer916 Yes, this has very large control surfaces and can do both inside and outside loops as well as many other aerobatic maneuvers.

[hammydude12345]

@0cache I think the small hot glue guns are low-temperature, I bought mine in a dollar store. Glad you like the video.

[headgalskit401]

Thank you very much for uploading this video.

[hammydude12345]

@headgalskit401

[hammydude12345]

@headgalskit401  You're welcome, glad you like it!