my X525 frame

[tovrin]

saturday i visited my local flight park finally, i had been hesitant to go until i resolved my vibration errors, i didnt want my copter in the air and have it dive bomb on me. but i fixed all that recently.

during my 3 batteries i managed to flip 3 times, in a row, after bouncing off the ground...

i shattered my X525 stock landing gear on one boom.

so i removed it and replaced all 4 landing gears with zip ties using the motor mounting bolts.

today i didnt get to go to the park, but i flew and tested heavily the landing gear with progressively harder landings and did not damage anything. Granted i did not purposely crash my quad sideways like what destroyed the last, I merely killed power in flight and let it hard land from different heights. BUT it held up remarkably well.



what i do notice is that if i dont use caution i can cause a bounce landing effect that is quite entertaining to watch but not very productive.

as a side note, removing all the metal offsets and screws i lost 100 grams, sitting at a beautiful 900 grams now without battery.

edit:// these are the biggest zip ties home depot offered, they are 1/2" wide 36" long, i cut one tie into 4 pieces, drilled holes in each end and attached it.

[DDJoker]

that is actually quit a nice idea

[tovrin]

FYI, I'm planning on doubling up on the tie straps to minimize the compression as my battery still tags the ground every now and then, cant imagine thats good for anything!

[doughboy]

that's quite creative.

did you just use double sided tape to mount the motor?

[tovrin]

no, the motors and landing zip ties are mounted via original bolts through the aluminum bars of my frame. i broke the original motor mounts quicker than i did the landing gear

it works out really well because i believe the plastic of the zip tie bound to the motor mount helps minimize vibration from the motor.

[Opal]

Gorgeous idea it is, quitely works well~

[brewski]

Hi Tovrin,

I also built a quad using X525.
Did yours come with MWC 2.5 clone of Crius SE V2.5?

I did my maiden flight with standard settings & it performed extremely well. I didn't even have to trim TX as I'd already set up in GUI with 1000-2000 with 1500 mid for all functions on TX before even trying a flight.
Different story yesterday when I flew with 10-15Km/hr gusting breeze. Quad was heading for a tall tree, I over corrected then I rolled left before tree & hit ground from 5 metres at about 30km/hr..not good & I expected the worst!
The quad was in remarkable condition considering, with only two retracting landing legs ripped off.

I tested quad & no other damage..pretty sturdy design when you consider 1Kg hitting the hard ground doing this speed from 5m.

I've ordered a set of these fragile fibreglass landing legs & I will try your cable tie fix. The fibreglass retracting landing gear was a good idea to cushion shock, but any sideways forces result in instant destruction. Why didn't they use carbon fibre?
I'm thinking of using a leg as a template & making out of .5 mm alloy. These will be much stronger, about same weight & you can bend back on a bad landing.
A 3D printer could also turn out some cool landing legs.

Cheers..B