Hands on: FrSky XSRF3O flight controller

Since I just started to add support for "old" FrSky XSRF3O flight controller to INAV (expect this in a release after 1.8) it might be a good idea to share few words about it.

FrSky XSRF3O flight controller in a box

First of all, it comes in a box. Why am I mentioning this? Because none of my flight controllers, and I own at least more than a dozen, came in box. C'mon, this is huge! I'm not joking, this is really a nice touch.

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Toy Stirling engine = best toy ever and best Christmas gift?

How is it until Christmas? 2 months and something. Pretty close. And like every year there will be problem: what to buy someone who has everything? Tough one, right? Sweater? Socks? Toy Stirling engine? I vote for Stirling engine for sure. There is only one precondition: recipient has to like mechanics 🙂

I’ve tested the cheapest toy Stirling engine from china you can get. For less that $20 you get a functional engine model that, surprise, surprise, works. Amazing, right? Here is my video review of it:

Oh, by the way, for me, this is the best toy ever!

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RunCam Split very late pseudo review: it’s not good

Yes, I know it’s few months too late. And it’s not really a review but rather, since I was never able to use it or I describe my friends experience with RunCam Split.

I own RunCam Split. I own it for like 2 months now, and it’s still in a box. Never connected, never really used. And in the meantime, I’ve build 2 mini quads are rebuild third. Why is that? Is there something wrong with RunCam Split that I’m not using it anywhere? And not planning to? Let’s be quick about it:

RunCam Split camera module and PCB

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Hands on: Tiny Frsky 8CH Receiver from Banggood

I have a nasty habit of buying things and then forgetting about them. Something like that happened to Tiny Frsky 8CH Receiver (Wolfbox F802 software compatible) from Banggood I’ve purchased last year. For some time I used it in JJPro P175 quadcopter, but then it landed in a box and I forgot about until last week.

Tiny FrSky 8CH DIY Receiver Pinout

So, let’s do overdue “hands on” on Tiny Frsky 8CH Receiver from Banggood… Continue reading “Hands on: Tiny Frsky 8CH Receiver from Banggood” »

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Hands on: DemonRC NOX5 FPV 5″ Frame

So many things to do, so little time… I’ve purchased DemonRC NOX5 quadcopter frame more than a month ago, but had some time to take a look at it only today. This is not a cheap stuff. More than a $100 for a 5″ frame is few times more than I’ve used to pay. But I just had enough of cheap chinese frames. Don’t get me wrong, they usually fly alright, but both quality and user friendliness lacks a lot. With “premium” frame at least I’m sure that I’m getting a good quality carbon fiber and someone actually thought for a moment about “tiny” details a place for VTX transmitter or battery strap…

So, please welcome DemonRC NOX5:

DemonRC NOX5 FPV quadcopter frame Continue reading “Hands on: DemonRC NOX5 FPV 5″ Frame” »

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Hands on: Eachine ProDVR

Since cameras like GoPro Session are heavy and my FPV goggles (Skyzone SKY-01) lacks built-in DVR, I’ve purchased DVR by Eachine: Eachine ProDVR. There is probably enough written on the web how it’s made and that it has problems with PAL signal and there are hacks to fix it. Oh well…

Eachine ProDVR

Instead, here are just some pros and cons, and short summary at the end. Continue reading “Hands on: Eachine ProDVR” »

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Eachine DIY Suitcase – quite a lot of space inside

I finally had some time to play around with my DIY Eachine Suitcase only to realize this item is no longer available on Banggood. Oh well…

OK, let’s get back to the suitcase. Like I wrote last time: it’s too small to hold 220 class mini quad with 3-bladed propellers on. But it’s big enough to hold some other stuff. I always had a problem where to put DVR and some 433MHz telemetry stuff I’m using from time to time.

For such a purpose, this suitcase is just perfect. Maybe even slightly too big. Right now it holds:

  • LCD with DVR
  • LCD stand
  • 3S lipo
  • 433MHz LRS-Bluetoothe brigde
  • 433MHz Moxon antenna
  • 433MHz dipole antenna
  • 5.8GHz dipole antenna

And there is still a lot of free space inside. Hmmm…. And I have no idea what else to put there…

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Review: BuildTak Printing Surface

For last few months I’ve been happily 3D printing PLA on glass. Prints were repeatable, initial adhesion was just fine, ready print was easy to remove after glass cooled down. But I wouldn’t be me if I did not wanted to try something new. So I tried “the ideal 3D printing surface” BuiltTak.

My initial impressions were very positive. Nice mate surface a little similar to fine grain sanding paper. I was a little afraid that adhesion will be even too good and it will be hard to remove the print. But hey, they had to think of it, right? After all, BuildTak is quite expensive after all. Continue reading “Review: BuildTak Printing Surface” »

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Hands on: JJPro P175 4″ mini-quad

Thanks to GearBest I have a new quadcopter to test and review: JJRC JJPro P175 True-X 4" min-quad.

First of all, it is Ready-To-Fly (RTF) product. Everything required to fly is inside white box:

JJ Pro P175 box

JJPro P175 comes assembled with accessories and radio transmitter:

JJ Pro P175 box 2

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Hands on: DALprop T5046 propellers

Last weekend I had an opportunity to spend some time in the air with new DALprop T5046 propellers from Surveilzone.
They are "funny" propellers. On one hand they have some nice features, on the other, they have few flaws that almost disqualifies them in my eyes…

  • Pros
    • Good air "grip"
    • Good efficiency
    • Smooth flight
    • Nice speed
  • Cons
    • Oh man, they are fragile. Each crash equals at least one broken propeller. If you got used to "tough" props from DAL, you will be shocked
    • They are very, very sharp at edges. I've cut my fingers when I was unscrewing shaft nut. You either have to hold them very carefully or wear gloves?
    • Too flimsy. I was afraid that they will bend in flight and cut ESC. I've already lost 2 ESC because of flimsy/bendy propellers and I started to pay attention to "flimsiness"

DALprop T5046

Final conclusion: while they might be an interesting option in terms of performance, they are not prepared for everyday use!

Photo from Surveilzone

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