They are 35mm. t might be that i have the arms inside the stack as opposed to underneath the build.

Hmm, now I am puzzled even more. So your standoffs are 35mm (and the banggood link points to wrong item)?

i will double check the height for you.

Thanks!

they are 30mm.

And the default standoffs / side plates? What was/is their height?

that is the default size and side plates

I see. Okay, thanks for the explanation then! I happened to be misinformed with respect to X6R default standoffs.

i have had one of these frames built for 1.5 years. its my work horse, i never change anything, nothing breaks and there is no play. i dont crash much anymore but when i did i thundered this thing it at full throttle. the carbon on the end of the arm bent, the bolts bent but after i unfu*ked its fine.

I did a static thrust test before the build. I will only be able to run 5040x3 props. With that prop on my kitchen scale the motors pulled ~1170g @ 27a. So probably closer to 20a in the air. I don't have any batteries with a high enough C rating to push any harder for now.

I did a static thrust test before the build. I will only be able to run 5040x3 props. With that prop on my kitchen scale the motors pulled ~1170g @ 27a. So probably closer to 20a in the air. I don't have any batteries with a high enough C rating to push any harder for now.

Got a break in the rain today. Down prop'd the setup to a 5040x2 prop.The current meter read 81 amps in flight. I will likely rebuild with 30 amp esc after I get some new higher C rated Lipo's in the spring.

How do you think a 25A 4 in 1 ESC would with these motors?

most sets of 4 20amp esc's will take a burst of 100amps. Mine certainly take the peak output I get at 92amps without complaining. That's been happening for 8 months, at an average of 5 packs a day.

I tried this setup with some new 100c batteries and 30a ESCs and it peaks at 120a so if you can bust to 35-40a your good.

I got mine on BG also. I have 2 builds on here using them and a spare. Both have been great for me. Maybe people have issues with using the VTX set at 600mw? I crashed this build into a puddle on Friday. Everything survived. They work for me because most of my ESC's are only BB1 based so a 4k/4k FC works for me.

How tall is your three stack on this? Do you have any pics of the build in progress? I have the same AIO and receiver as you, and I'm also going with a 4-in-1 ESC. My frame is a lowrider with 20mm standoffs, though, so I'm thinking it's not going to fit.

Sorry i was away for a bit. Stack can be pretty small. I use one long ass nylon screw and tpu tpu spacers to sandwich and soft mount everything. The nylon standoffs you can get on BG are too big to get it all in there. If you dont have a 3d printer try rubber o-rings and long ass nylons.

I am happy with the bearings. I only have a few packs in them. It has been raining where I live for the better part of a month. There is no markings on the motor for the type of alloy used. But if you look at all the types of 7075 (there is 16 that I know of) their properties vary and some can be pretty darn close to 6065 in tensile, sheer and fatigue strength.

Tighten mounting screws as tight as can. If it strips a little it’s mostlikely not 7075. But for $10 who cares really

I sunk the whole quad into a puddle on the weekend. Still working as new. I did clean them out tho.

I have not heard that before. Only one real way to know, fly it and find out. But thanks for the heads up.

Twist esc wires braiding has been know to screw with the esc reading the different phases of the motor. Basically can dsync randomly. On drastic throttle changes.

All four holes on the arm are slotted to fit 16mm or 19mm. So you can mount a 16x16 motor on this frame with all four screws.