(19-Jul-2021, 12:39 AM)kafie1980 Wrote: There have been mixed opinions about the noise isolation boards and copper shielding tape. 

I have used copper shielding tape a few times on an ESC and a vtx but I can't say for sure if it did much (without grounding it probably why it never made much difference).

If you still want to mount it then you can cover the bottom face with electrical tape to avoid any contact with the motor pads.

This is what I do not like about short stack heights because its hard to keep components apart to avoid noise in the system.

  The tape is a good idea.
 I usually have good video if I use the FC vtx bec +/- to power camera and vtx.
  It’s a short stack and the device is so flimsy it hits solder joints.
 The camera mount hits the micro USB port for betaflight so there’s not enough room in this build.
  If my video is noisy I may try one but if not I’m leaving it off.

 I am waiting on a tpu antenna mount but other than that it’s ready.

 I don’t know what to think about frame yet but after building and flying an Apex my expectations are high.

(19-Jul-2021, 02:37 PM)Rob3ddd Wrote:   The tape is a good idea.
 I usually have good video if I use the FC vtx bec +/- to power camera and vtx.
  It’s a short stack and the device is so flimsy it hits solder joints.
 The camera mount hits the micro USB port for betaflight so there’s not enough room in this build.
  If my video is noisy I may try one but if not I’m leaving it off.

 I am waiting on a tpu antenna mount but other than that it’s ready.

 I don’t know what to think about frame yet but after building and flying an Apex my expectations are high.

The Apex is a well refined frame over the last few years and there are enough examples and 3d printed designs out there for reference.

I hate tight builds because you have to be very careful about the components you choose. On the Explorer LR V2 frame as an example, I had to grind 1mm off the aluminum stand-offs to fit a HGLRC 20x20 ESC. And the Foxeer Micro Toothless 2 camera I choose could only be tilted upto 30 degrees because the connector would hit the stand-off.

All of that does not matter as long as there is a notably better flying experience with this AOS frame.

I put a few flights on AOS yesterday using a whip antenna using linear patch and stock straight antenna with decent video feed.Definitely not like directional but better than I expect and good enough to test fly.
I used default PID,no bidirectional,and motors ran smooth like my other quads.
It finished up with a weight of 377 grams w/o LiPo and it’s responsive.
I personally like the Apex more.
I’ll post some footage as soon as my video finishes uploading.
I tried shorten video but just learning system.

You might want to ask the https://www.aos-rc.com/ team (i guess its Chris Rosser alone) for their recommended pid/filter tune for the AOS5 frame (assuming you have similar motors/props/AUW as per their recommendations). Perhaps as a starting point to get you into the ballpark for the tune.

(21-Jul-2021, 02:28 PM)Rob3ddd Wrote: I put a few flights on AOS yesterday using a whip antenna using linear patch and stock straight antenna with decent video feed.Definitely not like directional but better than I expect and good enough to test fly.
I used default PID,no bidirectional,and motors ran smooth like my other quads.
 It finished up with a weight of 377 grams w/o LiPo and it’s responsive.
I personally like the Apex more.
I’ll post some footage as soon as my video finishes uploading.
 I tried shorten video but just learning system.

I don't know about anyone else but I used UAV Tech's preset as a starting point on my QAV-S JB build and it flew better and motors ran cooler than on stock PIDs. I am waiting on an AOS frame and am interested to see how you progress. Thank you.

(22-Jul-2021, 04:01 PM)Bud13420 Wrote: I don't know about anyone else but I used UAV Tech's preset as a starting point on my QAV-S JB build and it flew better and motors ran cooler than on stock PIDs. I am waiting on an AOS frame and am interested to see how you progress. Thank you.

  The default tune is good.
 I checked the graph in PID toolbox and it’s well within the range Rosser recommends.
  You’ll like the frame.
  Have you decided on electronics/motors etc…?

(24-Jul-2021, 03:12 PM)Rob3ddd Wrote:   The default tune is good.
 I checked the graph in PID toolbox and it’s well within the range Rosser recommends.
  You’ll like the frame.
  Have you decided on electronics/motors etc…?

I have two FCs I could go with : Cricket F7 45A stack or HGLRC F7 60A stack (I'm saving my TMotor for my Apex build), XING 2208 motors, and Crossfire. I'm leaning towards the HGLRC stack. I really wish I could interpret blackbox better. To clarify I got the AOS 5.5 frame. How's tuning going?

I did get the antenna mount for directional antenna and that helped video range and penetration.
It’s been too humid to fly and that’s a weakness of the cobraX.There is a heat advisory but a fan for defog would be great.
recently got a 40 amp stack from hobbywing for my next build and it’s a very nice stack.
I do like the beefiness of the 60amp and I still haven’t blown one but building light will be more my goal now and a 40amp should be good.
Hobbywing did a very nice job on the new F7.
The 40amp 4n1 looks tiny compared to the 60amp.
I need a stack like a hole in the head but in case chip shortages continue I grabbed one.
Why am I so fascinated by new shiny stacks?

I know that irresistible feeling looking at shiny stacks

Back when I was into the machining hobby (still own all machining stuff and keep them maintained but 3d printing has taken over everything for what I do now), there was a nice section written by Frank Moose: http://www.mini-lathe.com/Mini_lathe/Sta...rt.htm#tes

Quote:Tool Envy Syndrome (TES)

Tool Envy Syndrome (TES) is a serious condition that afflicts, in varying degrees, nearly all men who are interested in mechanical things. It is very important to recognize and deal with this condition before it becomes serious; left untreated it can lead to a far more serious condition: Inflammation of the Credit Card (ICC). TES is known to strike under the following circumstances:

• Browsing the latest tool catalogs or sale flyers
  
• Visiting stores such as Grizzly or Harbor Freight (Warning: while much less so than in earlier years, the tool department at Sears can still trigger small attacks)
  
• Visiting the shop of a friend who has more and/or better tools than you have
  
• Surfing the web site of  someone with a well-equipped shop
  
• Seeing a well-equipped shop in magazines such as Home Shop Machinist
  
  

Tool Envy Syndrome tends to strike young men particularly hard, due its close relationship to a similar condition: Gear Acquisition Syndrome (GAS). Over time, in most men, both of these conditions tend to lessen in severity. In fact, it can be shown that gradual accumulation of tools and gear over a period of years can control both conditions while minimizing the risk of Inflammation of the the Credit Card (this is known as the Mature Phase). It has also been widely observed that getting married and having children can moderate the risk; primarily, it is believed, due to counseling from a loving wife and the sobering effect of having lots more bills to pay.

Tool Envy Syndrome cannot be controlled by any known drugs (although its effects can be exaggerated by the use of alcohol). Therefore, treatment is currently limited primarily to counseling methods. The first step is admitting that you have a problem. Here are some additonal pointers:

• Avoid situations that are likely to cause an attack
  
• When visiting tool stores, leave your credit card at home (Warning: in severely afflicted individuals this can trigger emotional breakdown, fits of crying and other irrational behavior)
  
• Meditate on the fine collection of tools that you already have; recognize that time will make it better
  
• Find a quiet place. Visualize your ideal shop. Repeat to yourself "It is coming"
  

I hope you have found this information to be helpful. As a TES/GAS sufferer myself (now in the Mature Phase) I felt compelled to pass it on to you.

I'm doing Rosser PID tune.
  Here is my graph from pid toolbox before increasing PD balance and decreasing PD gain by same amount.The curve is slightly over x-axis so I will see if the adjustments did improve or make the overshoot peak worse.
  I'm not 100% sure what will happen so I'm moving the smallest amounts 0.1 at a time.
 First is before adjustments second after.
 Quad feels more responsive to throttle on second.No noticeable change in motor temperatures.
I might do one more click or just finish the rest of tune then go back to default to feel difference.