Sanchez HD 3 inch

By bootbox on Jun 11, 2019

11  233  15

Huge thanks to Dave_C_FPV on Thingiverse for providing the carbon fiber cut file and TPU adapter and canopy files. You can see him going over his build of a Sanchez on his YouTube channel.

I had my frame cut by cncmadness in 3mm plain weave matte CF. I used 3mm instead of 2mm becuase I have a tendency to spike these things into the ground pretty regularly. Surprisingly, I still came in 3g lighter than the original Sanchez build even with the thicker carbon, I'm guessing it's due to the lighter props, shorter battery lead, and lighter motors (7g 1106 vs 9g 1404).

This build was pretty tough as there's not a lot of room for all the components and wires but if you follow Dave's build video for a similar quad here, a lot of it comes in handy for the Sanchez build too, it helped me a lot.

I used the Emax RS1106 II motors instead of 1404 motors because I wanted to be able to use the 3in Avan Mini props and they don't fit the larger diameter motors. The RS1106 II in 6000kv should be a perfect fit for the Sanchez on 3s, and they should provide adequate thrust and efficiency numbers.

Two tips I can give if you plan to put one of these together:

  • I cut down nylon M2 standoffs to 3mm to separate the FC from the TPU adapter. This allows more room for all the wires without crushing them up against the FC
  • The canopy looks just like the Gatehunter canopy but you need to print the one from the Sanchez Thingiverse page if you're going to use the Caddx Turtle (20x20 pattern on the bottom of the Sanchez canopy instead of the whoop pattern on the Gatehunter)

Photos

Part List

Frame

The Sanchez [3 Inch Toothpick Style] by Dave_C_FPV (3 builds)
Thingiverse.com
See Site

Flight Controller

F4 2-4S AIO Brushless Flight Controller 12A (BLHeli_S) (5 builds)
Betafpv.com
$39.99

Motors

4X EMAX RS1106 6000KV Micro Brushless Motor CW Thread for RC FPV Racing Drone (8 builds)
Banggood.com
$65.96

Propellers

EMAX Avan Mini 3x2.4x3 Tri-Blade 3" Prop 12 Pack - Choose Your ColorRed (8 builds)
Racedayquads.com
$4.49

FPV Camera

Caddx Turtle V2 1080p 60fps HD FPV Camera - Red (30 builds)
Airbladeuav.com
$64.99

FPV Camera

Caddx ND8 15mm Camera Lens Filter for Turbo Eye
Heli-nation.com
$5.99

FPV Transmitter

Team BlackSheep TBS Unify Pro32 Nano 5G8
Heli-nation.com
$29.95

Receiver

Team BlackSheep TBS Crossfire XF-Race Antenna 915MHz - Heli-Nation
Heli-nation.com
$5.95

Receiver

Team BlackSheep TBS Crossfire Nano RX - Heli-Nation (234 builds)
Heli-nation.com
$29.95

Batteries

GAONENG GNB 3S 550mAh LiPo Battery 11.1v XT30 Connector for Brushless 90-130mm FPV Racing Drone
Amazon.com
$15.99

Radio

FrSky X-Lite 2.4GHz RC Transmitter w/ 18650 Battery Caps (64 builds)
Racedayquads.com
$121.99

Goggles

Fat Shark RC Vision Systems HDO OLED Goggle Set
$499.00

HD Camera

GoPro HERO7 Black Action Camera (19 builds)
Getfpv.com
$399.99

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (50 builds)
Getfpv.com
$159.99

Radio Module

Team BlackSheep Crossfire Micro TX Module (51 builds)
Airbladeuav.com
$69.99

Battery Charger

HOBBYMATE Duo Lipo Charger Dual Charge Port, Fast Lipo Charger, AC/DC Balance Charger 12A 120-240W W/ AC Power
Amazon.com
See Site

Soldering Iron

Weller WLC100 40-Watt Soldering Station (4 builds)
Amazon.com
$33.96

Tools

MIP Metric Speed Tip Set (3), MIP9512 (3 builds)
Amazon.com
$34.69

Backpack

DroneGuard BP 450 AW
Lowepro.com
$259.95
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Discussion

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raskern   5 days ago  
1

Very interested in the flight times, stability and performance on 2s if you try it. I am trying to build the ultimate <100g Quad for legal metro flying in Aus.

Show 2 more comments
Dave_C   5 days ago 
1

I tired a 450 mah 2S on 6000kV 1404s and it was not bad at all. On the other hand that is a really light pack and a bigger 2S might make the quad lack power

bootbox   5 days ago 

That's a good point, I completely forgot I had 450mAh 2s packs for my toothpicks! I'll give one of those a shot too.

raskern   4 days ago 

Thanks guys, What were the flight time on the 2s 450mah??. <100g Might be a unicorn. Seems that 130-150g AUW is the sweet spot for 3s. I have an 85mm toothpick frame and 1103 motors arriving today that should tell me if I need to go 3s. I do love both your build.
I could sacrifice HD for a little more maH, but I had envisioned myself gettign some footage of some sketchy locations and doing it legal.

Taterrs   4 days ago  
1

Hey Bootbox I just recievied my order from CNCMadness as well, but in 2.5MM. Nick does really great work there. Cant wait to build mine, but with the new Iflight boards w/ Blackbox so I can get some plazma tree action.

bootbox   4 days ago 

Wow this is the first I've heard of Plazma Tree. I just found an article on Getfpv describing how its used, very cool!

Taterrs   4 days ago 

Its works!!

Dave_C   5 days ago  

beautiffil build and great post! It‘s really not easy to build it as clean as you did!

bootbox   5 days ago 

Thanks Dave, appreciate the kind words!

Locng   5 days ago  

Look great! Is the ND filter worth it? 20g isn't it?. I'm planning to build almost the same but using gf3025 & 18650 for long range crusing, still wonder how reliable 12A geprc/betafpv board is.

bootbox   5 days ago 
1

I see the weight on the Caddx product description but that has to be the total shipping weight. I don't want to take it off to weigh it as I'm pretty sure I'll have to take the canopy off to get it back on (the filter is squeezed in from behind and it stretched the TPU on the way in) but it can't possibly weigh more than a gram, the glass is really thin and the fascia is plastic. It's super, super light.

Also yeah ND filters are the best, completely eliminate jello and do a nice job making pixel blocking disappear. I'll be running them on anything I have that records in HD.

Locng   5 days ago 

Sorry, didn't mean to ask to take it off, just wonder if its worth because the spec here shows 20g https://caddxfpv.com/products/nd-filternd8

bootbox   5 days ago 

I just don't have any way of knowing what it weighs without taking it off to put it on a scale, there's no way it's 20g though, that's the weight of 3 motors and the ND filter is closer to the weight of one prop, it's like a feather :)

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