Hello

i write to ask if is good (too much or too low) the flexibility that my stack have ?



that is it, when I screwed in the bolts I didn't use any tools, but I did it by hand.

is that okay ?

if I wanted to buy extra spacers, to keep in case of stock, does this vary from model to model of drone in size?

the model i have is an eachine wizard x220 v2;

I "softmount" my stacks any more and they are at least as flexible as your video demonstrates.  They all fly great, so I feel you should be fine with the way you have yours.  The stack will not  move around like that when flying.  You will likely be able to really wreck a prop and still stay airborne.  Your FC will have a lot less vibration to the gyro to deal with.

Years ago, crashed my Japalura hard enough to sheer all four of the stack mounting standoffs at the frame.  The whole stack was being held in place by just the ESC wring...and I did not even realize it till I was home.  Flew like five packs that day after the crash.  A little movement will not ruin your flight day.

it looks ok to me, it will fly but its not truly softmounted.
softmounted would mean a gommet which is on top and on the bottom, best would be even trough-inside of the board holes soft material. you would need these realacc softmount standoffs without any nylon standoff or the other option is a single screw and gommet spacers with nuts between them.

you can use about 14awg wire and take away the silicon, cut it to spacers and use them as softmount spacers between nylon and boards.

It looks like you are using rubber anti-vibration standoffs between the ESC and the FC like the following...

https://www.hobbyrc.co.uk/matek-fc-vibra...3-standoff

I use these on my analogue 5" quad and they work perfectly fine at reducing some of the vibrations being transmitted from the frame to the FC.

(24-Oct-2021, 05:44 PM)kaitylynn Wrote: I "softmount" my stacks any more and they are at least as flexible as your video demonstrates.  They all fly great, so I feel you should be fine with the way you have yours.  The stack will not  move around like that when flying.  You will likely be able to really wreck a prop and still stay airborne.  Your FC will have a lot less vibration to the gyro to deal with.

Years ago, crashed my Japalura hard enough to sheer all four of the stack mounting standoffs at the frame.  The whole stack was being held in place by just the ESC wring...and I did not even realize it till I was home.  Flew like five packs that day after the crash.  A little movement will not ruin your flight day.

lol you have been very lucky 

(24-Oct-2021, 06:56 PM)SnowLeopardFPV Wrote: It looks like you are using rubber anti-vibration standoffs between the ESC and the FC like the following...

https://www.hobbyrc.co.uk/matek-fc-vibra...3-standoff

I use these on my analogue 5" quad and they work perfectly fine at reducing some of the vibrations being transmitted from the frame to the FC.

yes they looks very similiar to me, maybe are the same, they are very soft to touch 

(24-Oct-2021, 05:54 PM)hugnosed_bat Wrote: it looks ok to me, it will fly but its not truly softmounted.
softmounted would mean a gommet which is on top and on the bottom, best would be even trough-inside of the board holes soft material. you would need these realacc softmount standoffs without any nylon standoff or the other option is a single screw and gommet spacers with nuts between them.

you can use about 14awg wire and take away the silicon, cut it to spacers and use them as softmount spacers between nylon and boards.

looks a bit tricky for me do that, would you give me the link of something to buy ? 

above you wrote: " realacc soft mount standoffs " and on google i didn't find anything specific.

I have the opposite problem with the new 7" build I'm doing and was wondering about that.

I'm using the m3x30 screws that came with the frame + small aluminum spacers to keep the PDB off the frame and the rubber "gummies" that came with my FC. It seems to be moving barely at all and certainly a lot less than all of my other freestyle builds.

Given the reputation larger quads have for being "sensitive" to vibration, is that going to be an issue?

That's reasonable dampening to me on the FC.