Replies to This Discussion

DistributorPermalink Reply by Martint BuildYourOwnDrone.co.uk on April 25, 2011 at 8:16am

Hello Wayne,

I have one of these, they are great flyers!

It looks like you have all the parts needed, you only need two servos for this airframe, one tip is to glue in a tape liner into the servo slots and then wrap the tape over the servo, it makes them much easier to replace if needed. The installation of the lipo in that place will have people split down the middle unless you are going to us the secret to removing it for charging..... :)

Regards

Martin

www.buildyourowndrone.co.uk

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Permalink Reply by Wayne on April 25, 2011 at 8:25am

Well I know I don't have all the parts for attaching my prop to the motor. I know there is something needed and I have seen it before but I don't know what its called or which on I need exactly. Its a two part deal that attaches to the pole of the motor and the prop gets sandwiched between that and a nose type piece.

UPDATE: I just found that part I am referring to. It's this part here. I forgot I had it in my list I created last year. ;)

 

One other thing I am unsure of is that the ESC has the three wires that attach to the motor and those wires are black and labeled "A", "B", and "C". On the motor there is a Red, Black, and Yellow wire. So what color wire goes to what lettered wire on the ESC? Other than those things and attaching a battery connector to the +/- wires on the ESC I think I may be set.

 

Considering lipos get hot and some of the dangers that come with charging them I think it would be best to remove the battery for charging so that's what I will do with that.

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ModeratorPermalink Reply by Darren on April 25, 2011 at 9:05am

Does not matter what colors on the motor, Just put them in, if the motor spins backward, switch any two wires and it will spin correctly.

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ModeratorPermalink Reply by Thomas J Coyle III on April 25, 2011 at 9:46am

Wayne,

Given the battery location, I assume that you do not plan to glue the fuse together? Otherwise you cannot see the physical condition of the battery after many charge/discharge cycles nor remove it without taking the fuse apart.

Just a thought.

Regards,

TCIII

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Permalink Reply by Wayne on April 25, 2011 at 9:55am

See where those 4 bumps and indents are in the center and on the tail? My thought was that I would replace those with neodymium magnets aka "neo mags". Those of you not familiar with them have likely come in contact with them and not have known it but they are VERY strong magnets. Not only was I going to put them in those places but a few other strategic places also to ensure a nice strong tight fit and still not require any glue. As extra reinforcement I also thought about placing a couple dowels or something in a few places through both halves and perhaps have pins on the end of them that will also keep the halves from wanting to split apart in flight.

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Permalink Reply by Stefan Olofsson on April 26, 2011 at 9:26am

I always put my fuselage halves together with doublesided tape. The kind used for carpets. I am not sure about your battery placement. I think you should try to assemble the plane temporary with rubberbands and see where your CG is. Good luck.

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Permalink Reply by Wayne on April 26, 2011 at 9:47am

yeah I have been thinking about that. I dont think I will keep the battery all on that half of the plane either. I want to make sure its centered between the wings correctly also. I might take some balsa wood and stick some into the openings I have made for the battery so that it gets placed perfectly center. Since I will be putting a lot of my plane together tonight, I hope, I will take just the two halves with wings and tail and find CG before I put stuff in it. That way I will have something to work from. :) Thanks for the idea.

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Permalink Reply by Stefan Olofsson on April 26, 2011 at 10:09am

Here is two blogs i made about my EasyStar

 

http://www.diydrones.com/profiles/blogs/easy-star-bathtub-mod

http://www.diydrones.com/profiles/blogs/building-my-uav

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Permalink Reply by Wayne on April 26, 2011 at 10:37am

Very nice. Thank you very much. So any updates of what you had built after your crash? I didnt really read through everything but what was the reason for the crash?

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Permalink Reply by Stefan Olofsson on April 26, 2011 at 11:12am

A bad servo. I wrote about it here:

http://www.diydrones.com/profiles/blogs/shame-on-you-servo

 

The funny thing is that it worked fine with RC setup but not when the APM was connected. I got some valuable feedback about using metal gear servos etc.

 

The EasyStar only got a bent nose even when i had the bathtubmod with the top part of the EPO fuselage cut off.

I am currently on my third version of the wooden thingy on top of the bathtub. Will make a blog post about it soon

 

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ModeratorPermalink Reply by Mark Harrison on April 26, 2011 at 11:15am

Wayne, RCGroups has a wealth of Easy Star information here:

http://www.rcgroups.com/forums/showthread.php?t=1363621

I had some questions on building, and they are a super friendly and helpful bunch.  The first couple of posts are pointers to build guides, etc, everything you will need to get up to speed for your first build.

My own modest contribution to the EZ* world is a nice looking rudder made from two store cards:

http://eastbay-rc.blogspot.com/2011/04/easystar-rudder-mod.html

 

As others have mentioned, you will want to put your battery up front to keep the proper CG.  Good Luck!

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ModeratorPermalink Reply by Ritchie on April 27, 2011 at 3:14am

As someone who has taken the neodynium route with his Easystar I can tell you the idea is not what happens in practice. I had 24 magnets on my setup which worked well at holding it together until landing with any mor force than feather. At which point the entire airframe and electronics explode from within so do NOT land in wet grass.
I have however moved to the more traditional approach of lots of glue as the destruction ruined my playtime with me having to "rebuild" it all. You can see my initial build pics on my blog and once I've done my first flight on the new code I'll post pictures of my complete new setup as I'm focusing on CoG.

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