That's the elovution of my "Flugturm" project. The first version was a bit underpowered and the frame was to weak. Therefore I changed the frame an the motors to tackle these points. The aim of this build is the same: put all the technical features of a 5 inch quad into Toothpick size, which are BLHeli 32, F7 FC with blackbox logging and twin gyro, digital video, LEDs and an extra loud beeper.

The frame is the version with 3 mm baseplate.

This thing is pretty heavy for a toothpick, but it flies great and it's power is on a par with my 4S 5-inch copter.
The feeling is very similar to a 4s 5-inch, but it's more light-footed and agile.
Till now, it took a lot of crashes without any damage ;)
The flight time is somwhere between 3 and 6 1/2 minutes, with 450 mAh Lipo and ESC running on 48 kHz.
I think the Lipo is the bottleneck in the powertrain, so I'll try the Tattu R-Line 650 mAh Lipo (higher discharge-rate) as soon as it's available in stock.

Update I:

I changed the DJI Cam to a Caddx Polar Starlight and it's really an upgrade - great cam!

Update II:

Yes, my assumption above was correct. The 450 mAh battery was the bottleneck.
With the 650 R-Line it's a complete new feeling! Very little voltage sag, much more power, which compensates the additional weight by far and extended airtime.
I think if I really aim for it, I will reach the 10 minutes flight time...
In combination with the Caddx Polar cam it's almost perfect for me:
Fast, agile, low noise profile, small and lightweight in the backpack, "cheap" batterys, long flight time and flyable far beyond dusk.

Before it was just a project, now it's love :)
Really, I like this build and I'm starting to ask myself why to buy these expensive batterys for a 5", having more weight in my backpack without any reasonable benefits?
Any suggestions?

Weight with props: 130 g
AUW with 4S 450 mAh: 181 g
AUW with 4S 650 mAh: 206 g
Flight time (450 mAh): approx. 3:00 to 6:30
Flight time (650 mAh): >4:00 to 9:00