Two days later (today) I flew the drone into a tree, dropping it four meters onto solid pavement. Luckily, it fell right way up â€“ three of the cable ties snapped, absorbing most of the shock and probably saving the cross. No damage done! I now keep a few spares in the box for quick field replacements
I didn't find any recent posts dedicated to this great mod, so here's a reminder for all new members & lurkers on this forum.
Yes, this is a very simple mod, but I'm sure we have a lot of readers here that would love a step by step instruction, so here goes my first one:
This landing gear mod:
- -is cheap (<2 US$ worth of 4 cable ties + tape)
- -is lightweight (6g for all four + tape)
- -doesn't interfere with downwash
- -quick to replace (4 mins to cut & attach all four)
- -doesn't require any gluing or permanent modifications to the drone
- -doesn't look too bad
- -still allows the drone to fit into the normal box
- -must have saved countless drones from a broken cross!
1. Cut 4 large cable ties to 21cm length. Cut the end into a pointy arrow (makes it easier to push the cable tie into the body at step 3)
2. Insert the end without the ratchet into the gear from the outside, then loop the end downwards through the ratchet
3. Adjust the ratchet so the cable is directed downwards and pull it tight enough to stop it from sliding & rotating (if pulled extremely tight, it's likely to slip of center, where the frame is narrower)
3. Slip the end along the frame into the body.
4. Fixate it on the frame with a small piece of black electrical tape
5. Adjust so the drone is level.
Note: Properly centered loops help absorb the shock better and these can slip from time to time, so make sure they're in position before every flight.
Thanks to Candu1 at RCGroups who had the original idea of the "Cross bar saver"! See the original post on this forum for details + a technical analysis.