R/C Blogs - RC Groups
Posted by blitzen | Yesterday @ 11:08 PM | 134 Views
I have a little quadcopter that has brushless motors. The 2" props are like miniature buzz saws. I want to protect people, pets and the bric-a-brac. So I bought a prop guard.
Confident that the drone is now a low-level danger. It's sitting on the living room floor ready to go. Little did I suspect, the battery loop fastener had partially stuck to the plush carpet. On take off, the fastener ripped free unevenly rolling the quad. Faster than I could blink, it was upside down on my bare foot. The scratches only bled a little.
Posted by AlkaM | Yesterday @ 09:29 PM | 185 Views
This made me very happy today,

Everything is working as it should, I had one little glitch and blew up one motor in testing but the end result is a custom esc that behaves like an esc should. Responsive and fast. Next step is to make an interface to connect to the pc and change settings.
I am still playing around with different PWM techniques. One PWM pulse per commutation might be a good way to drive motors to very high rpms and avoid any phase locking. This means that pwm frequency will change as motor frequency increases. I am lacking very high rpms motors to test properly with though. Anyway that's for future posts.
It looks a little ridiculous strapping such a big esc on but, I couldn't wait to finalize the firmware or make a normal sized esc. I had to try it out on a quad. I forgot to change the throttle min to a normal range so it starts long before the other motors but that's a minor fix.
First flight with open 32 bit ESC on a quadcopter (0 min 58 sec)

First blog post without a schematic attached but i'll dig one up to put on tomorrow. The schematic for this speed controller is in my last blog post.
Posted by Bad Company | Yesterday @ 07:45 PM | 236 Views
I have been learning and playing on the new vinyl cutter. Here are a few that i have completed for customers and myself. Pm me if you would like a displayed decal or want something custom.
Posted by Reckless_fpv | Yesterday @ 07:10 PM | 256 Views
beast mode fpv freestyle (4 min 23 sec)

Posted by basser | Yesterday @ 06:50 PM | 261 Views
Differential Throttle, electric twin, for the iX12

1. You first set up a second throttle channel. Let's use AUX2. THRO will be the right motor, and AUX2 will be the left motor.

2. Go to Channel Assign and set the Input for Aux2 to INH. Port assignment for AUX2 will be AUX2.

3. Set up a Throttle Cut switch. Lets use switch H. Set the position to whatever you want. Most electrics will be -100% in the “cut” position.

4. Set up a mix, Normal, THR > AX2, rates 100% / 100%, 0 Offset, Trim enabled, Switch H. Highlight the boxes under the switch so that the AX2 throttle works when you are in the "run" position. When you flip to "cut" the THR channel will go to low throttle and AX2 will go to the center.

5. Make another mix, Normal, ON > AX2, with rates of -100% / -100%, 0 offset. Set the switch to H and make it active when you flip H to the "cut" position.

6. At this point you should see common action for both THR and AX2 for both positions of H. In one position they both operate, and in the other they both go to -100%.

7. Make another mix, Normal, RUD > THR, 0 offset, trim off, again using switch H so that the mix will be active in the "run" position. Adjust the Rates so that when you move the rudder stick to the right, THR goes toward low throttle. When you move to the left, nothing should happen on THR. (rate example 0% / 50%)

8. Make another mix, Normal, RUD > AX2, 0 offset, trim off, again using switch H so that the mix will be active in the "run" position. Adjust the Rates on this one so that when you push the rudder stick left, the AX2 channel goes toward low throttle.When you move the stick to the right, nothing should happen on AX2. (rate example -50% / 0%)


You only want the rudder to throttle down, never throttle up.
Both throttles should work together on the throttle stick, throttle cut should work on both throttles, rudder input should slow the motor on the side your rudder stick is moving.
Posted by buudy22 | Yesterday @ 06:45 PM | 263 Views
Hobbycool recently provided me with goggles for review. They are the SJRG01's.

These goggles seem very exciting on my computer screen. But are they as good in person?

Short answer -- YES!

See this video for full details. Ask questions. I'm happy to answer. More to come on these goggles.

Best CHEAP FPV Goggles? - SJ-RG01 Comparison Video (5 min 28 sec)

Posted by kydawg1 | Yesterday @ 06:08 PM | 282 Views
Posted by UpNup | Yesterday @ 05:27 PM | 304 Views
The Ford Flivver 268 build has an interesting tail. It's complex and everything "hinges" on two CA hinges. Ahem. Once covered with Monokote Sapphire, the carefully cut-in hinges disappear. When I finished one side, I not only used a Sharpie to make the placement, I immediately transferred the CA hinges. A ballpoint pen marking the middle of the hinges helped them stay equal. Later, I plan to put thin CA and bond them along the hinge lines.
Posted by UpNup | Yesterday @ 04:59 PM | 325 Views
The Ford Flivver 268 build used two rolls of Monokote Aluminum and one roll of Sapphire colors. I thought long and hard about breaking up the strips, but chose to make the bottom in one sheet and the top in one sheet. The big test was whether or not the metal beads glued to the top of the ribs would heat and melt through the Monokote. I used an iron to tack down all the edges and then hit the plastic film with the high heat setting on a heat gun. Everything went extremely well.

Some glitches include some very tiny puckers on the edges. And underneath the wing tips on one end, there were some buldges that were not obvious until the Monokote shrank into place. The film was extremely forgiving and I often re-heated certain edges, especially around the ailerons. I covered the whole wing and then went back and cut in the tray in the middle of the top and the small hole holding the nylon wing screw....Continue Reading
Posted by UpNup | Yesterday @ 04:28 PM | 352 Views
The Ford Flivver 268 build used black pleather cut using a cockpit template on the 1068 RCM plan. The template should have not just used the outline of the cockpit, but a half-inch border to allow for the pleather. I used a sturdy needle and double-threaded black cotton threat around the inside and outside edges of the pleather. Shorter cuts were estimated for the little cockpit edges by the pilot's shoulder. I tried covering the edge with a thin line of double-stick tape, but it didn't really work.

I started in the middle right behind the windscreen. I put a line of CA on both edges of the coaming. I simply pinched the pleather right onto the Monokote skin on the top and the painted planking underneath. It stuck. I slowly worked down the left side putting drops of CA on the pleather edges and pinching them and smoothing them. It worked. The coaming on the hatch wasn't a perfect match, but the original Ford Flivver didn't really match either. And because the pleather was so spongy, I didn't have the overlapping of the relatively thin leather used on the original plane.
Posted by scousethief | Yesterday @ 02:25 PM | 415 Views

Well , the third one has arrived

Vehicle Length: 285mm
Vehicle Width:140mm
Wheelbase: 165mm
Wheel diameter: 50mm
Wheel width:20 mm
Motor :390
Gross Weight for car:about 1.7KG
Transmitter frequency:2.4Gh
Transmitter battery:4xAA(not included)
Battery Power:7.4V1100MAH
Run time: about 10 min
Charging time:150min
Control distance: more than 100m
Color:Blue / Red

Wltoys A949 Features:
1.4WD 2.4GH Rally Rc car style
2.1/18 Scale suitable for indoor and outdoor control
3.High quality car body
4..Four-wheel independent suspension
5. Two Differentials
6.Come with 4-wheel shock absorbers
7.With Proportional Steering function
8.50Km/ H for the high speed
9.100metre control distance
10.Two color for chosen: Orange / Green
PS:The reduction Gear of this car are fragile parts,recommend to prepare some as reserve spare parts

Package Included:
1 xWltoys A949 Rc Car 1/18 2.4Gh 4WD Rally Car
1 x Transmitter
1 x Charger
1 x Battery
1 x Manual
(PS:The package has changed,see more details click here.)
Posted by Bunnyshooter223 | Yesterday @ 01:15 PM | 506 Views
We just witnessed an H19 (or derivitive) Helicopter suddenly appear overhead flying low and fast. I think it was OD Green or Coyote Brown.

I could be mistaken... but the undercarriage and sillhouette gave it away.

I was watching YT videos so am famiar with its looks.

The H19 has a Radial Wright engine in the nose.

I snapped the pic too late but i managed to capture a dot... with my peasant phone lol
(a surprisingly awful pic similar to those UFO 'captures' you see taken by the foil-hat folks)

I thought the H19 was pretty much not used these days. So i was surprised. It could be a later model...

There are actually many versions including one with Jet engines. The one i heard sounded like... well i'll have to watch some videos because the rotor noise overpowered engine noise.

It seemed to make a combustion-engine sound if i had to bet the Cat.

If i see it again i will snap a pic. Tin-foil hat ready
Posted by guaglione87 | Yesterday @ 01:04 PM | 460 Views
Posted by FireDad913 | Yesterday @ 11:56 AM | 527 Views
Connections dont match up. Charger not capable?
Posted by fastmax | Yesterday @ 10:12 AM | 617 Views
Wow! Things sure have changed in the past year or so. Not too long ago, many of us were spending $70-$80 on small brushed FPV racing drones. Today, you can get brushless racers, with much better electronics packages for around the same price.

The new Zing 110 is a perfect example of one of these inexpensive, yet nicely equipped brushless micro quads. This little racer is an excellent model for pilots that have been flying brushed quads, and are ready for an increase in power, and speed, or for pilots that want something small enough to fly around the backyard, or small park without spending too much.

Right now this little racer is available for only $84.55 Click me to purchase.

For $85 you're getting a pretty nice package. At the heart of the quad is the popular Flycolor Raptor S-Tower F3 FC with OSD and 12A 4 in 1 BLHeli-S 2-3s Dshot ESC, paired to some 1104 4300kv motors. For FPV duty you get what looks to me like the KingKong/LDARC Q25 25mw mini 5.8ghz VTX hooked to an 800TVL 1.6mm CMOS camera. The package also includes two full sets of KingKong 2345 props.

The quad arrives with Betaflight 3.1.5 firmware which works perfectly fine, but for those that want the newest firmware the Flycolor FC has a boot button, making flashing new firmware quick, and easy. They even give you a set of prop guards for those that prefer to fly with them.

All in all I am pretty impressed with this little quad. It amazes me how far this sector of the RC hobby has come in such a...Continue Reading
Posted by vwbsean | Yesterday @ 10:05 AM | 586 Views
Some fuselage progress on my covering
Posted by craytech | Yesterday @ 09:55 AM | 587 Views
Hobbymate Lipo Bag Deal (1 min 59 sec)

Hello everyone welcome back.

In todays video I wanted to tell you all about a great deal on fire and explosion safe lipo bags. Go ahead and head over to amazon to check it out. Right now if you buy a medium lipo bag and use the promo code HBLIPOBAG you will receive a free mini lipo bag.

Hobbymate Medium Lipo Bag

Mini Lipo bag

Check out this great video of the lipo bag in action.

Hobbymate Lipo Safety Bag Review and Test (14 min 30 sec)
...Continue Reading
Posted by Deserteagle | Yesterday @ 03:26 AM | 848 Views
I knew the DJI "racing goggles" were going to be horrible all a way around and another half baked product that is NOT for racing and too be honest not worth the money. I did get some of the usual DJI marketing people on here mad because I wasn't going to drink the DJI koolaid but I was just warning others that may not know better NOT to get these goggles for any kind of racing.

But don't take my word for it... FINALLY a REAL review NOT from a DJI shill or sockpuppet.

Josh Bardwell is a REAL reviewer and yeah... these are junk
DJI Goggles RE and OcuSync | HD FPV FOR DRONE RACERS? (18 min 58 sec)