Tarantula X8 3"

By Kichaa_FPV on Apr 09, 2022

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This frame took me a while to design. It ensures a tight fitment of 20x20 ESC mounting pattern while still using the full size 30.5x30.5 FC. I made it so make a 3" capable of carrying larger action cameras and gopros without feeling the weight difference... bassically a smaller 5".

Photos

Part List

Flight Controller	Holybro Kakute F7 V1.5 Flight Controller (15 builds) Getfpv.com	See Site
ESCs	2 x Aikon AK32 V3 35A 2-6S 4-in-1 ESC Droneshop.nl	$129.90
Motors	8 x Flashhobby Arthur Series A1506 1506 3100KV 3-6S / 4300KV 3-4S Brushless Motor 5mm Shaft for 3-4 Inch Freestyle RC Drone FPV Raci Banggood.com	$135.92
FPV Camera	Foxeer T-Rex Mini (2 builds) Droneshop.nl	$49.95
FPV Transmitter	TBS Unify Pro32 HV 5.8GHz Video Transmitter (MMCX) (119 builds) Getfpv.com	See Site
Antenna	TBS Crossfire Immortal T V2 Antenna (149 builds) Pyrodrone.com	$5.95
Receiver	TBS Crossfire Nano Rx - FPV LONG RANGE DRONE RECEIVER (1499 builds) Team-blacksheep.com	$24.95
Batteries	4 x Tattu R-Line Version 4.0 22.2V 6S 1050mAh 130C LiPo Battery - XT60 (21 builds) Racedayquads.com	$135.96

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Discussion

Jodie Froster Apr 10, 2022

This is a really cool project, I love the spider face you milled into the bottom plate!
I think it's very clever of you to use 1506, and mount the arms to the top (instead of the bottom) so you can take off and land without any extra hardware. Clever.
Your two esc's in the back look super clean, I know it's dirty from use, but I would REALLY love to get a look inside.
I wonder if it's even possible for a 20x20 FC to have a full 8 pads for motor outputs, but in the mean time you got a sleek look with that 30x30 anyway, so good on you.

Kichaa_FPV Jul 03, 2022

thank you, yes indeed a 20x20 stack would be nice, just didn't have one available to me at the time and this ended up being the best solution i had. i have however taken it apart since then as it wasn't as stable as i intended. I am currently thinking of turning it into a cinewhoop and a 3" build. the total of all those parts weren't worth it for me. if you would like i could remix a version with a 20x20

Jodie Froster Jul 04, 2022

I'm sorry it didn't end up being a great flier after all that time and money. That can be a bitter pill. I look forward to the new ones you will build with these parts, they are very cool!

lgustol Apr 10, 2022

How did you mount the motors facing each other? Are the arms split in two halves?

Kichaa_FPV Jul 03, 2022

the arms are split with a 1mm plate holding one motor and that being mounted with 2 m3 bolts in the far side and inside of the arm

BaTTaN Apr 15, 2022

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