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Posted by AlkaM | Today @ 08:10 PM | 53 Views

Its been a while since I put up a DIY electonics blog post. I live in Canada so I try to spend my summer outdoors. This next one took me a little while to get right, I made the first revision around June of this year and made a mistake with my original schematic. I built the board and programmed it and everything seemed to work but I could not get a motor to spin up. Thinking this was a software problem I then devoted the next two months adjusting and tinkering with startup parameters and motor profile settings.. It was not a software problem. I had completely screwed up the op amp gain resistors circuit and no amount of changing settings would fix that. A sharp knife and some small wire did fix my problem and after that i was able to get a motor spinning.
I haven't tested much yet but this is a stripped down simplified version of the "steval-stspin32" demonstration board. It has the same pinout for the user keys and potentiometer and the firmware example will run on my board without much modification. I did have to play around with dead time and pwm and foc rates to make my board run and start up stable.
I used the bull running 1700 kv motor that came in another nucleo kit because the motor was already profiled. If using an unknown motor you will have to create a new profile for that motor and recompile the firmware. That's the problem with FOC. You can't just hook up an unknown motor.. and profiling a motor is not a simple thing.

I will include the gerber and diptrace files again like my other posts also a working firmware binary for the bull running 1700kv motor. There is a lot of potential for this little chip as it contains the gate drivers, voltage regulators and mcu all in one. The stspin32f0A is probably a better choice for rc as it has a wider voltage range ( down to 2s lipo).

Simple FOC speed control board using stspin32f0 (1 min 13 sec)

Posted by 1nspectorGadget | Today @ 05:45 PM | 119 Views
JJRC H67 Flying Santa Claus Quadcopter Review and Flight Test (9 min 58 sec)

The kids and I are having a lot of fun with this one.
Posted by Herb | Today @ 04:53 PM | 163 Views
I got this nice MiG-21 as an airframe only kit for $249 from MRC :


I plan to install my own power setup, an FMS 80mm inrunner fan, as described here:


The main reason is that the FMS fan is a lot lighter than the stock (or even non-stock) FW fan plus it has a better inrunner motor.

I have the same setup in the A-4 Skyhawk and it works really were there, no need to change anything

The paint scheme will the Russian aerobatic one, red on top and silver on the bottom. More or less the same scheme I have in my scratch-built MiG-21 105mm edf:


Posted by NoobRc | Today @ 03:58 PM | 262 Views
Writing and maintaining this blog to hopefully serve as a POV from a Noob customer who has built many EF planes across all available sizes except for 9X. If you are new to 3D and looking at EF, or considering certain planes, this may help you.

First to be clear, I am a big fan. EF is a great company that makes some of the best performing 3D planes across all sizes, so congrats, you can’t go wrong buying EF!

Selecting Your First Plane:

Tip 1: if you are new to 3D, start with a 60 Electric, especially a 60 Edge. The undercarriage seems to be built to take a hammer hit, and you will likely have more than your share of bad landings if you are new to 3D. Smaller size planes are cheaper but they will break more easily. And unless you have great repair skills you will compound your challenge.

Tip 2: If you are not comfortable with or cannot afford a 60 electric or you know your 3D skills are really really Nooby, go with something like a Twisted Hobbys 43 Veloxity. It’s airfoiled well, is a small enough size to fly at smaller fields, and repairs will be easier and cheaper. Ofcourse you can start with something like a 32 inch MXS-C from Twisted Hobbys to get your stick movements in the right direction and coordinated but it will not transfer well to balsa. The 43 inch Veloxity is more than half way there.

Ordering Parts for a Plane:

Tip 3: Don't blindly use the order configuration on the EF website. For two reasons. First its not always right,...Continue Reading
Posted by TommyClancy | Today @ 02:46 PM | 208 Views
This video is going to show how to calibrate your esc using your transmitter just click on this
How to calibrate your ESC (1 min 9 sec)

Posted by archerfpv | Today @ 12:59 PM | 298 Views
Latest build im working on.
Frame - GepRC Sparrow
FC/esc - HGLRC XJB F428 - TX20
Camera - HGLRC Elf cam
Motors - EMax 1306 3300kv
Props - are on the way - geprc sparrow props 3042, as well as gemfan flash 3052 and some lumineer and rotorX props on the way as well.

All parts came from gothelirc.com during thier Black Friday sale. Super quick shipping ord red Friday and received Monday. But just now getting to start building. I live this kit so far it's super simple to build but the solder points are small. I'm not the greatest solderer but it's going smoothly. More to come!

Edit: for some reason I can't upload pics. But I will as soon as I can.
Posted by DadaSauce | Today @ 10:10 AM | 461 Views
Well, it is getting cold and the build season starts. This is the new project!
Posted by ydzf110 | Today @ 01:12 AM | 925 Views
The overall design of this Betaflight Hive Backpack is geared towards those that are serious fliers and have multiple quads and many tools and accessories that they carry with them while traveling by air or even just to the local field.

Betaflight Hive Backpacks are performance tested, at fully loaded capacity, using our strict control standards. Before we offer this product for sale, it is put through test to ensure itís strength, durability, and dependability that is represented by the most demanding frequent travelling quad pilots. This attention to quality results in us (FPVMODEL) and (Betaflight) being able to offer the best warranty in the industry. Click here for the backpack warranty or download the PDF.


International carry-on size compatibility for air travel.
Dedicated lap-top pocket
Dedicated fireproof lipo bag
Elastic daisy chain tool panel for your hex drivers and other hand held tools.
Large interior pocket for carrying props with hard shell cover on the bag for added protection from outside forces.
1680D ballistic nylon bag material for long life durability.
Featuring the best zippers in the market made by YKK to ensure long lasting zipper life.
Contoured adjustable padded harness with height adjustable chest strap.
Rain cover that pulls out from bottom panel pocket for fast rain protection.
Exterior Dimensions: 56 x 34 x 18cm
...Continue Reading
Posted by nickburns | Today @ 12:56 AM | 955 Views
Don't mistake this BabyHawk for its previously released namesake. This version has power, Foxeer ccd cam, buzzer, osd, a fancy canopy and replaceable arms. This beauty is a bit on the heavy side for a micro keeping the flight times a bit low, making a quality battery all that more important (batteries linked below video).

BabyHawk R - EMAX - 2inch front runner? (22 min 8 sec)

Note: Not tuned, but rather "input" from pilots..

BabyHawk R
PiroFlip Frsky http://bit.ly/2jB6gSG
PiroFlip PNF http://bit.ly/2z36Cqh
Banggood http://bit.ly/2z2PoJp

GNB Batteries
GNB 3s 450mah http://bit.ly/2ygQ1eK
GNB 3s 550mah http://bit.ly/2jRoHPT

GNB 3s 450 http://bit.ly/2y3yc3W
GNB 3s 550 http://bit.ly/2wW6lFi
Posted by nickburns | Today @ 12:51 AM | 933 Views
This time an indoor flyer from the well known FullSpeedRC. The BeeBee 66, as you will see in the video is a quick indoor quad using the sunny sky 703 ballbearing motors. Additional performance can be gained by removing the 3d printed pod and securing the all in one camera with a bit of double sided foam tape. The only feature missing is a buzzer, which to many wouldn't be of use with indoor flight.

BeeBee 66 - FullSpeedRC (11 min 27 sec)

BeeBee 66 http://bit.ly/2jK5YoD
BetaFPV http://amzn.to/2jbmXkg
GNB 450mah http://amzn.to/2AsjnJQ
Posted by SteelRainSpo | Today @ 12:49 AM | 922 Views
Does Innovation = Perfection??

ZMX FinX30 2207.5 Motor Overview & Tear Down (8 min 52 sec)

Check out my YouTube video overview and tear down of the new ZMX FinX30 2207.5 fpv motor, where I discuss it's physical and technical specifications, along with the patented innovations Silver Drone has implemented to make this the most interesting and innovative motor to come out in a long time.
Posted by nickburns | Today @ 12:46 AM | 931 Views
Using a combination of their own components this 3inch is a burner. The two items lacking are the HD cam mount might be a bit fragile and the props a bit dated.

If your early in your FPV experience don't be put off by the speed in the video. Anyone can start on 4s or 3s, lower the camera angle and find a nice open field.

If your well experienced, strap on a pack and let it rip.

HGLRC XJB145 (17 min 50 sec)

HGLRC XJB145 http://bit.ly/2zCiw8o
Tattu Battery http://bit.ly/2gRsRFF
Actuna Antenna http://bit.ly/2ixhO97

Coupon:RC18OFF 18% off your purchase http://bit.ly/2j7IAW2
Hot RC Deals http://bit.ly/2y7GFlw
Posted by FPV.Model | Yesterday @ 10:39 PM | 958 Views
Skyzone SKY03 FPV Goggles (1 min 31 sec)

Expected shipping date: December 20th, 2017

Skyzone SKY03 3D Goggles.
Pre-order: https://www.fpvmodel.com/skyzone-sky...les_g1373.html

Skyzone is a professional manufacturer of FPV goggles, now here comes the third generation 3D FPV goggles named SKY03. The SKY03 is an upgraded version of the famous SKY02S 3D FPV goggles. They boast a great feature set, comfortable to wear and fit a wide range of eyesight conditions as well. As a business partner of Skyzone, FPV Model will be the first on the market to receive the SKY03 FPV goggles.

Heres a list of features and specs:

With Head Tracking function
Diversity Receiver Module with Dual Antennas
ISM 5.8GHz 48-channerl diversity receiver
Built with Front Camera
Up to 43 Degree FOV
Binocular Display,SVGA 800X600 resolution,binocular display.
Multiple LED Light effect mode support.
Intimate Design of Human Mechanics
Posted by kopterheld | Yesterday @ 08:05 PM | 1,051 Views
This is the self-made Boldclash BWHOOP B06 with OSD and DSHOT600. The frame from Boldclash B06 with BR0703 motors and 4A ESC DSHOT600 Omnibus F3 OSD FC. Fly with 260mAh 2:40 minutes, even better than the original Boldclash BWHOOP B06. The LST - S2 800TVL camera fits very well in the B06 canopy. With a little hot glue, the camera sits firmly in the canopy. The F3 flight controller has OSD and voltage is displayed in the video image. The OSD can be configured via Betaflight 3.2.2. The 4A ESC is DSHOT600 capable and thus also Turtle Mode works. The material costs are lower than the original Boldclash BWHOOP B06 and you have an OSD and DSHOT600.

Video 1 - Boldclash B06 OSD Turtle Mode and DSHOT600 DIY
Boldclash B06 OSD Turtle Mode DSHOT600 DIY (4 min 42 sec)

Shopping List:
B06-01 Frame Set - http://www.boldclash.com/boldclash-b...crew-p135.html
Racerstar Star4 4A ESC - https://goo.gl/6AzQen
Racerstar BR0703 15000KV Motor - https://goo.gl/gCpbeJ
FrSky XM SBUS Receiver - https://goo.gl/5InfW5
Teeny1S F3 OSD - https://goo.gl/yKX47Z
LST - S2 800TVL AIO FPV Camera - https://goo.gl/QFKCD6
CMOS FOV170 camera - https://goo.gl/T86blx
Turbowing 5.8G 25mW 48CH FPV VTX - https://goo.gl/rvwt71
JST PH 2.0 charging - https://goo.gl/KXtnbw
JST PH 2.0 adapter - https://goo.gl/kA3PnM
JST PH 2.0 100x Connectors - https://goo.gl/2ZrCpR
Teeny1S F4 FC OSD + 4 In 1 6A ESC - https://goo.gl/QtiDdH
best fit combo F3+ESC
BeeCore OMNIBUS F3 FC 5A ESC - https://goo.gl/fJixid

More...Continue Reading
Posted by akkteck | Yesterday @ 07:37 PM | 1,040 Views
akk tech all products 12.12 promotion akktek.com

Posted by Tom Hunt | Yesterday @ 06:24 PM | 1,207 Views
OHello fellow modelers.

Though I have seen a few multi-engine foam models released recently with removable outer panels, I wished that had done it on the Flightline F7F. Despite the nice multi-connector provided to make it easier to assemble the model at the field, it is still a pain to snake the wires (servos and power) into the fuselage each time. I do not yet know of the reliability of mulit-con, but my philosophy is: "if it doesn't need to be done... don't do it!".

So, to that end I decided to cut the wings off at the scale fold-joint on the model and re-install the outer panels with two simple servo connectors for the ailerons and lights.

Lets get started.

First you must take off the nacelles and then remove the tape covering over the wire troughs. With the bare wing on your bench you can proceed with the surgery.

I am sorry i did not actually get any pictures of me sawing off the wing, but the process is simple. You should use a brand new long edge knife for the foam (like the kind where you break off the end piece to reveal an new sharp edge) and then use a new fine tooth exacto saw to cut thru the spar tube. DO NOT cut the servo and light wires at this time, just remove them from the mulit-con near the wing root for now and leave them attached to the OWP when cut off.
Posted by ronaldopn | Yesterday @ 05:27 PM | 1,131 Views
12th flight of my new bird, still mixing and playing with CG but I'm already loving it. I may write a build log for it since I took lots of pictures during assembly.
Sorry for the background noise but a club member was breaking his new nitro engine in.
Sorry also for the sharp cut at the end but my camera battery died right before landing.
Skyline Raven 30cc (4 min 49 sec)

Posted by LUTEPLAYER | Yesterday @ 05:26 PM | 1,130 Views
Has anyone tried to connect HobbyEagle A3 to a 6 channel receiver when all channels are in use ie Ail,Elev,Thro,Rud,Gear,Flaps
I understand that the A3 needs a power supply to the mode connection which could be taken from the bind socket on the rx using only the feed and ground connections
As I understand from the A3 manual, if the mode connection is not assigned to a channel on the tx then it will work on the pre-set mode for mode 1 position which could be the normal or even auto balance mode? which is the one I want to use
Anybody tried this set up or similar, I have used the A3 on a 4 channel plane and assigned the two spare channels for mode and gain adjustment on the tx, I do like the straight forward set up of the A3 particularly the program card which is very useful when the laptop is at home!
Any comments appreciated