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the 'lil tello racer..

stewe12

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Wow, pretty decent racer you got. Only thing we need to solve now is the lag or how to connect proper RC TX...
 

xcrost

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View attachment 2611

  • lowered stance
  • racerstar 8250 53k RPM motors
  • antenna mod
  • OEM yellow props
Fast little bugger that can be bit of a handful, lol..


cheers,
ph2t.
Nice! How much improvement with the upgrade motors and also with the antenna mod? Thanks!
 

ph2t

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@stewe12, yeah that would be nice, especially the lag. Can be bit of a motor killer when you pull up too late and hit the wall in fast mode, no prop guards and no luck! I feel like the lag is less without the prop guards but I'm sure that's a placebo, haha.

@xcrost, I'm still testing the differences. I reakon without a wifi repeater the antenna mod does improve range but alas more testing is needed to be sure. The motors might be a little fast once you change out all four stock motors for the racerstar ones. Although I'm not 100% sure as a single racerstar motor works well with the other stock 3 motors as well. This to me says they are of similar specs, unless the tello is compensating for it and running that single motor at a different speed to the others when hovering.

I got some cheap scales and it clocks in at 75g. Dunno how accurate the scales are though. The stock tello (with prop guards) comes in at 91g.

IMG_4580.JPG

Here's a comparison photo, the modded tello looks faster, lol...

IMG_4578.JPG

cheers,
ph2t.
 

ph2t

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Haha, I most definitely did! I feel like it’s faster now, haha 😆

The antenna mod is a work in progress. Check my pcb reference thread for more info.

Cheers,
ph2t.
 

ph2t

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The 'lil tello racer has gone through a few changes. :devilish:(y)

cf_conversion.jpg

  • Carbon fiber frame conversion
  • 2 x external 8dbi antennas
  • Racerstar 8250 motors
  • OEM midnight blue props
  • FPV camera "angle" mod :LOL:
  • External battery mod
Lots of fun this little thing is. I promised it the next week will be all about the flight time and no "bench work" per 'se.

Here's a small (crappy backyard) video demonstrating the setup. I'm quite happy about the antennas in particular. The video quality is a lot better and I didn't experience any frame dropping which surprised me. The video is screen captured but the last 30 seconds is the video feed from the tello.


Fast mode FPV FTW!

cheers,

ph2t.
 
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