Babytooth on Damfast frame

By SeeWell on May 13, 2020

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Built up a Babytooth on a Damfast toothpick frame as they only weigh 5.3g without the hardware and the Babytooth frames were out of stock until yesterday. However as you see in the last photo it weighs in at 58g auw which is over what I would want. I think that is due to the way the the frame builds up and the requirement to use heavy duty hardware so ordered a 1.5mm Babytooth frame last night. Two things I did different from a standard build are to use the Eachine Nano over the Nameless RC nano because the Eachine has power for your camera built in and the Nameless does not. This matters because the BetaFPV 1s board does not have power for your camera so you have to double up power wires on very tiny pads. I also replaced the built in SPI receiver antenna wire with a shorted XM+ receiver antenna, this is actually really really easy to do and makes for a much more usable quad. Drilling a small hole in the canopy allows for super simple routing and the casing of the shortened antenna is stiff enough to stay upright and out of the props. An elastic like I've seen Mr. Shutterbug use would make it even sturdier.

Photos

Part List

Frame	DamFastFPV "Toothpick" V2 Frame \| DamFastFPV (2 builds) Damfastfpv.com	$13.00
Flight Controller	BetaFPV 1S Brushless All-In-One Flight Controller V2.1 (3 builds) Fpvcycle.com	$39.99
Motors	4 x FPVCycle Light 13mm 1S Motor- 2mm prop shaft (40 builds) Fpvcycle.com	$39.96
Propellers	Gemfan TRI-BLADE 3016x3 Props (4CW + 4CCW) - 2MM hub hole (28 builds) Fpvcycle.com	$1.99
FPV Camera	RunCam Nano 3 - FPV Camera (35 builds) Fpvcycle.com	$19.99
FPV Transmitter	Eachine NANO VTX 25-400mW 5.8GHz Micro VTX - U.FL (42 builds) Racedayquads.com	$20.99
Antenna	RDQ 5.8GHz U.FL Dipole FPV Antenna - Linear (85 builds) Racedayquads.com	$2.99
Batteries	GNB 1S 450mAh XT30 Batteries (3-Pack) (4 builds) Fpvcycle.com	$7.99
Misc Parts	BeeBrain V2 camera mount \| DamFastFPV Damfastfpv.com	$2.99
Misc Parts	FrSKY Rx antenna -- XM, XM+, R-XSR Rotorgeeks.com	$2.12
Misc Parts	XT-30 Male Connector Fpvcycle.com	$1.00

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Discussion

Abonacci May 21, 2020

Nice build. I have been fiddling with these toothpicks lately - I have a 1s and 3s build up. I am using the Sanchez Air frame which is incredibly light, I believe the lightest design out there. You could even bump down from 2mm to 1.5 for the 1s build like shutterbug did. I just finished my 3s and waiting for this spring rain to clear to maiden it. I love my 1s for my backyard. I have a feeling my 3s will just be a lot to handle in a space like mine. I have a few 3mm versions on the way to build an 1106 3s verion with an on board DVR and CRSF as well. That will be a fun building diver.

I feel like I can use the whole potential of the 1s in my yard, which I think is what makes it fun, if that makes sense.

SeeWell May 21, 2020

I agree 100%, I've actually got a Kabab 1.5mm babytooth frame arriving tomorrow or monday depending on UPS. I tried to track down titanium and reny hardware like Nate Payne uses to get weight down but that was going to be too much of pain to get shipped right now, they would have come from the UK.

You hit the nail on the head, the 1S and 3S builds are completely different beasts even though the props are the same. I think of it as building a quad to suit the space where I can fly, since I generally have 4 types of spots that I fly at I have 4 types of quads.

Abonacci May 21, 2020

Thats awesome, thanks for the response. I think over time i may do those minor modifications to get the weight down even more on my 1s. I have been thinking that even aluminum screws would be sufficient for the motor screws at this weight, and be even lighter than titanium. only one way to find out. I need to get a more senaitive scale if im going to keep fiddling with these things. A lot different than fooling with my 660g auw freestyle 5" ! lols

jnguy101 May 20, 2020

Hows the performance on the 1202.5 motors? is there a reason why you chose these motors over the 1303 fpvcycle motors?

SeeWell May 20, 2020

These motors are only for a very very lightweight 1S build, frankly I just wanted to see for myself how they perform. I still prefer flying the 3S toothpick which I have the Amaxinno 1303 motors on but the 1S is unbelievably quiet and can fly it pretty much anywhere so I've ended up flying it more than I initially thought I would. Since it doesnt have the raw power it forces you to fly a bit smoother which is good for me to practice. Mine is a touch overweight so still need to swap out a few components to get it below 50g auw with the 520g battery on board.

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