scruffy1's blog - RC Groups
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Posted by scruffy1 | Apr 15, 2018 @ 12:57 AM | 1,240 Views
yes, one is never enough

neither, does it seem, are lots more than one

on this occasion it's a slightly bigger one than the micro build in my previous post, but the frame is completely from scratch, and it's way faster and more dangerous - and i have the lacerations to prove it

a slightly more detailed description of the build, and pics are available over here :
Posted by scruffy1 | Apr 05, 2018 @ 03:47 AM | 1,060 Views
silverware flashable b03 - get some acro fpv action for crazy cheap !

the actual build is here, but the post below this in my blog contains the whole saga, plus other links for parts you might find useful
Posted by scruffy1 | Feb 23, 2018 @ 08:12 PM | 1,863 Views
just decided this is as good a place as any to maintain some links to my own posts, for reference

it's a work in progress, but should be current

feels free to post a message if any of the links are dead, and i'll try to update accordingly

some of the product links are affiliate codes; no extra cost to you, but i get a small kick-back for typing all this stuff to help you on your micro drone / fpv journey

my interest has been stimulated by the availability of silverxxx's silverware, a flashable firmware which can be written onto the motherboards of a selection of cheap and tiny drones, allowing them to be transformed into full acro capable fpv madness - like getting a tiny whoop but at the price of a toy drone

it all started back here and since then has gone bunta , appropriately, given where it originated

lots of others have joined the party, and there are even now pre-flashed boards at betafpv

yep, this thing is taking off, and deservedly so

if you have a soldering iron and some skills, aren't afraid of computers, and already have a taranis, you don't need much more than time and energy, and the compulsion to make something pretty amazing for very little investment of money

it's not the path more often travelled, but the company will be good (supportive players on the forum), and the rewards in personal satisfaction and rolling your own is hard to beat

c'mon, the adventure has only just begun

Posted by scruffy1 | Feb 10, 2018 @ 07:35 PM | 2,587 Views
full description over here, but it ain't rocket science

if you can't figure it out from the pictures, you'll have to click the link i guess

ingredients :
  • mini drones
  • original plastic clam shells
  • empty ice cream tubs

dimensions of the spacers will depend on your requirements, and they will need to be trimmed to stack comfortably, but it's easy enough

there ya go ! now you needn't hold back from buying some more drones, and as a bonus, more ice cream
Posted by scruffy1 | Dec 03, 2017 @ 12:26 AM | 2,463 Views
i'll hopefully post a bit about beginner's fpv stuff soon-ish, but as an interim taste, here's a few pics of my bespoke light weight micro-fpv camera mount for the bonsai - only half a decade after the early adopters suggested the possibility in my build log in this very blog back here

the initial trial with a similar tiny camera simply bunged on the nose with cable tie worked passably, but the nose obscured the view somewhat

raising the camera, and moving it forward takes full advantage of the 120º vertical field of view made a lot of improvement

full details of the "build" are over at the fpv threads here
Posted by scruffy1 | Sep 03, 2017 @ 02:35 AM | 2,715 Views
this is just a convenient reference in my blog to direct you to the more extensive review in the appropriate thread over at multirotor drones

i'd like to thank nigelsheffield for encouraging me to try out this mode of flight, because prior to actually having a go at it, i wasn't at all fond of quadcopters

on reflection, i had the same low opinion of dogs until i was obliged to live with one, and now she's my favourite pet; she likes my discus launch gliders more than this thing though

here's me fanging it (thanks to my son for the video, and also for demanding i buy the quad for his birthday... maybe at some stage he'll want to try it himself )

Eachine H8S-3D Fun!!! (3 min 25 sec)

Posted by scruffy1 | Aug 23, 2017 @ 09:51 PM | 3,365 Views
i have just received the above device for assessment, and there is a more comprehensive review (and more to come as i have a chance to test it out) over here:

in essence, this is a full range 8 channel receiver with an integrated high sensitivity variometer, specifically designed with glider pilots in mind

it's the perfect small package for f3k and their powered ilk, and small enough that it will fit in mosquito sized craft as well
Posted by scruffy1 | Aug 18, 2017 @ 05:49 AM | 3,263 Views
pretty much a blu-baby clone, and all credit to Tony65x55 for a great design which i have largely followed in proportions and layout

my spin on it is slightly larger (just shy of 37") and will use 2s for primary training,and probably 3s for the intermediate mode with ailerons and very likely a kline-fogleman airfoil - those things are fascinating and completely out of kilter with traditional aerodynamic profiles... and very easy to build compared to traditional streamlines ... i really feel the urge to try one

mine is also way more complicated than the original, because.... i can't help myself

anyway, this entry is just to announce the build, and direct anyone who is intrigued to check out the more protracted descriptions of the project, and a selection of photos of the process

hope you like it; there's a few pics below to get you clicking on this link
Posted by scruffy1 | Aug 17, 2017 @ 10:59 PM | 3,267 Views
everyone has their own ideas; do what you like, but here's what works for me

while i appreciate that local vendors may well offer advantages in terms of quality control and after sales service, you need to realise that they are selling the same stock as everyone else (unless you get burnt by cheap pirated knock-offs), but adequate research on the forums and using your google-fu will help you find significant bargains

please note that whilst i sometimes link "affiliate items" that garner me some small rewards for referral, that doesn't alter the price versus buying from a direct link, and i am very open about the process - in fact, i am often too lazy to modify the link to my benefit

in any case, my reviews and comments on stuff are without fear or favour - i have nothing to lose by telling it like it is, because if i think something is a steaming crock i won't be directing you to buy it anyway, and if it's good, i'm pleased to be able to enlighten you

when you buy local, the added cost is like buying extended warranty - you pay for it, you might benefit from it, but in effect you are buying something you hope to not need - it's a bit like disability insurance... which i admit i'm glad i have, because all the spare time i have to write on this forum is being sponsored by mine ... but my life is more valuable than toys, so i take a calculated risk on toys that i don't with my health
yes, that's what we play with, and i am happy to call it for what it is...Continue Reading
Posted by scruffy1 | Aug 01, 2017 @ 02:05 AM | 3,457 Views
the depron frenzy continues

inspired by the flydreams "bird type power unit" i set to it, and the result is documented over here

teaser shots below
Posted by scruffy1 | Jul 28, 2017 @ 03:29 AM | 3,474 Views
i'm in the midst of making a 24" (600mm) rudder / elevator, low wing. light weight depron plane

figured it belonged over in the foamies scratchbuilt, but posted here are a few teasers - further write up can be seen at the link :

depron is pretty fast and fun to build with, despite never having used it before - the foam-cure glue is interesting - still not fond of all the cobwebs it makes, but my technique is improving rapidly
Posted by scruffy1 | Jul 03, 2017 @ 02:15 AM | 4,484 Views
the mini lipo voltage sensor for frsky is small and useful, but unlike its larger sibling with onboard readout, it has no inbuilt polarity protection

that's the price you pay for having a unit weigh 2.8gm versus the bigger version at 5.2gm - for some the extra heft is negligible, but for smaller planes that's ballast you don't want - if i want to read cell voltages on the ground i have a lipo cell checker

anyhow, there was discussion in the taranis "how to" thread about the whole idea, which included this advice from aloft hobbies about it

Warning - The MLVS has no polarity protection! Great care should be used to make sure you ALWAYS plug in the battery correctly. If a battery is plugged in backwards, it can fry everything connected to the receiver, and the receiver too. We strongly advise to use the slightly larger SP-FLVS instead, it features polarity protection.

i discovered a balance connector at hobbyking that could act as a donor, but other leads up to 6 cells can be found at other suppliers with some google-fu

alternatively, crimp on a standard servo plug, double check the polarities and leave the flylead attached to make it easier to use in a plane
Posted by scruffy1 | Jun 19, 2017 @ 04:52 AM | 5,457 Views
recently, for the first time ever i got my hands on a decent quantity of depron, and decided it was time to give it a go

inspired by the micro r/c kits from banggood, and reminiscing on the free flight nieuport 11 (bébé) sesquiplane model i built for a friend last century, i was taken by the colour of the grey depron being plenty silver enough to make a great choice for the nieuport

the general gist of it was initially discussed over here in a thread in the scratchbuilt indoor and micro part of the forum, where the plans and a full size baby are on view

there's some posts on my initial trials with heat gun, rolling, hot water and rudimentary oven based mould, but it was all pretty so-so, and i decided to go big and make a bespoke mould from wood with aluminium plates, sorta the depron version of a foccacia press

i give direct thanks to dan schwartz who generously sent me a copy of his original plan, which i borrowed from (amongst other sources) to make up my own version - the one i concocted was modified by necessity due to the available oven space

a quick trip to the local bunnings hardware procured the necessary stock for my take on it :
  • 400x140mm marine ply base ($2 from the offcut bin for a bigger piece trimmed for free, with enough left over for a perfect sized base for a building board)
  • 2.7metres of 11x11mm pine strip
  • 10 metres of 15cm wide 0.3mm "weatherflash" aluminium flashing
  • 5/32" x 36mm bolts with matching sets of washers and wingnuts
  • (i
...Continue Reading
Posted by scruffy1 | May 24, 2017 @ 10:21 PM | 5,540 Views
i recently bought the described product from banggood - minimum rc spacewalker; make me immeasurably richer using the affiliate link provided - immeasurably as in very small reward, but hey! i'll take what i can get

it included a motor, but not the one they showed with the kit

product specs from my measurements are :
  • motor core 16.61mm long, 21.10 overall to end of shaft
  • 7mm core diameter with 1.0mm shaft; prop hub has correct bore for the supplied shaft
  • the propeller is markedly asymmetrical (see the pics) and there are neither mounting lugs nor screws, despite the illustrated product showing both
  • overall weight 4.1gms for components, propeller is 1.2gm but will be less with required trimming and balancing, no doubt

the mounting "hole" on the (presumably) nylon hub is 2x2mm suggesting this hub is for probably a component for one of the carbon stick fuselage models; the "front" hole forward of the 2x2 fitting is 1.35mm diameter, and might lend itself to mounting in a 1.5mm carbon rod with a little "encouragement" - see pics

the tiny motor turns over nicely unloaded on a 3.7v 1s lipo

however, due to not being what i saw in the product pics, the proposed use in either a sopwith pup or minimum rc spacewalker is not going to be possible without substantial modification

all in all not a bad product, but the buying experience was somewhat spoiled by inaccurate product details - but for ~ $4 delivered as part of the job lot, i can't get too disappointed even if i can't use it as planned
Posted by scruffy1 | May 15, 2017 @ 07:43 PM | 6,258 Views
banggood has recently been selling a selection of plug in modules for transmitters that enable them to utilise other protocols than the host transmitter, although up until recently they have been limited in their variety of compatibilities

although it was possible to flash them for other protocols, this required some degree of nerd capability, the latest iteration iRangeX IRX4 utilising stm32 firmware does a whole lot of protocols that are enabled via the transmitter interface on Taranis as long as the transmitter is updated to the 2.2 firmware

for those users relatively new to taranis, this may be less painful than if you have a whole lot of stuff already programmed using 2.1, although in my limited applications prior, the model i wanted to move across did so painlessly

there's a thread to help over here , where i wrote :
things i would note for other potential owners :
  • if you want to do any internal soldering, do it before you put the module in the slot - that sucker is in there for good without some specialised removal tools
  • this video for firmware upgrading is essentially correct, but there are a few minor hiccups (like the downloaded file for the upgrade needing to be renamed with *.bin extension because windoze doesn't do that automagically), and simply loading it to the sd card as suggested didn't seem to work, whereas using companion (eventually) did
  • this page was helpful, but make sure you also check the "multimodule" box in the edit
...Continue Reading
Posted by scruffy1 | Jan 05, 2017 @ 06:50 PM | 6,239 Views
my success rate for powering up things with a jst connection first "try" has frustrated me since the beginning - i generally find that by the time my fingers obscure the leads when i try and plug them, it's a 50% chance i'll be holding them in the wrong orientation as i try and connect, and then have to juggle a small plane and the battery

i have started using a permanent marker on my jst connectors to mark the negative side obviously black

problem solved !
Posted by scruffy1 | Dec 31, 2016 @ 10:23 PM | 6,898 Views
read all about it over at the build log here, or for those already watching, skip to the final instalment here

teaser shots below - more at the links above
Posted by scruffy1 | Dec 21, 2016 @ 11:06 PM | 6,518 Views
almost there !

just a teaser to encourage some further viewing over at the build