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Posted by RickC_RCAV8R | Feb 16, 2018 @ 02:10 PM | 2,673 Views
Gentlemen :

I went thru some of my salvaged crash victim parts and ran across this toy quadcopter flight controller . This KY-X56R is a German made one that is used for brushed motors in toy quads . I had a detailed look at the board and found that there are 4 distinct areas near the white connectors of the motors which seem to be the driver elctronix . The nearby red connectors seem to be parallel connected ones to the input side of the drivers which would suggest that they deal with the motor throttle signals ONLY . If so , the red connector outputs could be for the use of regular ESCs methinks .

My thoughts are to salvage this board for some quadcopter project as it has the connection of a 720p type DVR and LIVE video on it which works just fine . Although this board's flight range would be relatively small , its use for a general basher would be realized . Perhaps the neighbor kid could use this one .

If anyone has experience with this flight controller or is willling to translate the German website information to discern the capabilities of this board , please feel free to add a comment or two and let me know .

Regards to all of my readers , Aussie mates and the experimenters out there . RickC_RCAV8R
Posted by RickC_RCAV8R | Feb 04, 2018 @ 01:30 PM | 10,669 Views
Gentlemen :

Since I received this model last week , I have only had one flight with it as the weather is not co-operating very much . This allowed me to read most of the extensive thread in the Electric Plane Talk forum found elsewhere on this website in the Convergence topic . There are a lot of mods posted in there , some of which are employed here . Although most of these mods are relatively simple in nature , the rear motor mount adapter seen in my previous posting was the major mod shown here . This adapter mod solves the rear motor centering with the rear duct and can only help to reduce , or negate the observed transition shuddering / shimmying seen .

The Mods Performed :

-- Add a VelCro strip in the battery bay to better secure the battery and provide a non-slip mounting .
-- Extend the battery power lead and route thru the forward hole provided for any camera wiring .
-- Use a battery voltage monitor with a high output buzzer .
Set this to trigger at a voltage level high than the
Low Voltage Cut Off .
-- Scuff up the motor shaft ends with emory paper to make for a better grip by the aluminum prop adapters .
-- Add a landing gear skid and secure with VelCro to make it adjustable for CG and overall balance .
-- Dress up the twin tails with customized markings for better visibility .
-- Remount the rear motor with the 3D printed adpter to correct the motor's centered height .
-- Upgrade the linkages with heli grade ball links and re-adjust the center-to-center overall lengths as near to 50mm as possible .

Additional maintenance related aspects were addressed like lubing the linkages and the forward motor mount bearings with graphite .

As with every modeler , performing any mods to a new model is a personal choice . For me , I decided to take the advice of the fellows that posted their thoughts and mods in the Convergence forum . Thanx to all for their experience and observations .

Regards to all of my readers , the flyers , builders and my Aussie mates . RickC_RCAV8R
Posted by RickC_RCAV8R | Jan 31, 2018 @ 02:11 AM | 1,799 Views
Gentlemen : (Updated with new files)

I finally popped for an Eflite Convergence . Always wanted one of these ever since they came out a couple of years ago . I watched most of the videos offered on YT and learned about a few minor mods and setup details . One of the major problems observed by most of the flyers was the fact that there is a built in shuddering / shimmy of the Convergence while it is transitioning from the hover flight mode to the airplane flight mode . This can be heard in most of the videos . So I had a more detailed look .

I dunno . Maybe it is just me . BUT it seems that the rear motor is mounted about 7.3mm high of the duct centerline (airframe seams) . As the rear motor goes dead after the transition , it will stop with the prop just hanging in the breeze like a chunk of lumber . Laminar Airflow over the upper wing surface is severly disrupted by the prop . Turbulence seen as buffeting as the airspeed picks up is the audio result methinks . So why not just move the rear motor lower down so that the centerline of the prop profile and centerline of the duct are at the same level . Seems like an easy mod to cure this problem really .

The 3D printer comes to the rescue ! This part is my idea of a solution to this motor mount problem . The stock setup sees the motor mounted on a 5mm square CF shaft . The lousy thing will be to cut this shaft to be able to insert and glue in my part . If there are any...Continue Reading
Posted by RickC_RCAV8R | Jan 28, 2018 @ 03:17 PM | 990 Views
Gentlemen :

The posting yesterday of the rotary tool holder was the pretext for this intended project of a propeller cutter that I named The BullNoser . Although the pictures of this are in my shop's bench vise , the BullNoser is intended to be mounted on a plywood base or the bench top .

I FLY ! I bust a lot of props in the process . Learning the ACRO modes of flying for multi rotors does consume props . If I am lucky and don't bust a complete leaf off of the prop , I usually just zing off the tips in the dirt . Most times , this leaves props which can be shortened to a convenient diameter while ensuring a proper Bullnose radiused tip . This project makes that operation a snap ! Practically , it takes longer to mount the prop with an adapter to the 3mm center shaft than it does to cut down the prop itself .

A decision was made early on to have the central cross slider platform be made with a 3mm steel shaft that was salvaged from one of my crash victim motors . This shaft is press fit into the slider hole with gentle , but firm tapping with a hammer . A standard sized prop adapter is used to secure the prop to be cut down with perfect alignment . The slider IS adjustable for the prop leaf radius and has the ability to be locked into place to ensure accuracy . Future mods for this project would include a measuring rule but is optional at this point in time . Important to NOTE that the 8mm steel rods used for this project were salvaged from an old computer...Continue Reading
Posted by RickC_RCAV8R | Jan 27, 2018 @ 03:18 PM | 1,234 Views
Gentlemen :

25,000 reads on my blog . Thanx to all for this recognition mates !

As I am well into the winter build projects , the Anet A8 3D printer is working the majority of the time spent in the work shop . The project presented here is of a Rotary Tool Bench Mount for the Workmate rotary tool . The dimension of the internal sleeve is 49mm which required that I add a layer of electrical vinyl tape arount the rotary tool as a shim . This will protect the tool from the four 10/24 set screws holding it securely in place . The mount has 3/8" holes which may be used to bolt to a plywood base OR the work bench in a strategic location . Having the rotary tool mounted horizontally makes it easier for some jobs .

The project was designed in a few minutes using the OpenScad CAD program . I have included the STL printable file for printing . I hope that it will serve some of my fellow modelers well as it does for me . Any comments or feedback is always welcomed .

Regards to ALL of my readers , my Aussie mates and the builders in RC world . RickC_RCAV8R
Posted by RickC_RCAV8R | Nov 20, 2017 @ 02:47 PM | 2,466 Views
Gentlemen :

My mates Franky and Peter paid me a visit last weekend and I presented each of them with their snowsled skiers and the other gear like the radios and battery chargers . This allowed me to find new homes for some of the older radio gear that I had inherited over the years . The mates were blown away and are looking forward to racing these sleds this winter . As I want to WIN , I decided to make some mods to my frame to use a pair of ducted fans as the motivators . A test platform for an upcoming quadcopter project .

After installation , I decided to test the thrust of the DFs on the shop floor as there is not any snow on the ground outside the shop . Firing up the DFs presented a 'Holy S*#& !' kind of reaction as the sled shot itself across the room . It actually launched itself from the short cardboard box it was resting on at the time . The DF units are rated at 485 grams of thrust apiece . The AUW of the sled is 760 grams . But WOW ; what an acceleration ! Even on 3S power . 5700KV motors , I guess .

The mods that I designed were to mount the DF units and the rear stabilizer winglets . As these mods are not a part of the original downloaded 3D print model , OpenScad came in handy . The DF strut mounts are of a ROTORBITS compatible one that will be used on an upcoming quadcopter project .

The pix shown are of hte final sled , ready for racing when the snow arrives . Franky and Pete are going to have some competition !

Thanx for the blog support ! As always , comments are welcomed . My Aussie mates need not fret the fact of having now snow as this model will soon be further modified to accept wheels and floats . Regards to all of the builders : RickC_RCAV8R
Posted by RickC_RCAV8R | Nov 13, 2017 @ 12:50 PM | 2,030 Views
Gentlemen :

I hate winter and all that comes with it . Winter makes for lousy conditions for flying except for multi rotors most times . Winter does afford more opportunities for building and researching new projects and ideas though .

Back in the 70s when my mate Franky and I were teen agers , Frank had this crazy idea to build up a snow sled based upon curved cutain rods with a COX TD049 as power . A non-RC rig for large fields operations , I guess . The succesful version that he built did , in fact work . Too well as it was never to be found again as it skated towards the center of town . So when I ran into a 3D print of a snow sled on Thingiverse.com , I had to check it out . The version I downloaded for its STL files was of a slick looking DF one . A great candidate for a simple 2 channel RC rig . I printed the first one of these for Frank .

I ended up making a few mods for the Thingiverse model that are included here . Copyright and proper crediting would not ethically allow me to repost the original model files , BUT I have included the screenshot for those for one to download for himself . My mods are for a motor mount with vertical extensions to mount an 1806 motor and 5 inch prop . Other mods are for a frontal LED lighting bracket and an antenna mast for the radio RX .

Since a recent heatwave has melted a lot of the snow around the shop , I resorted to testing this sled in the workshop . And 'Boy Howdy' , does it ever scoot along the shop floor ! The...Continue Reading
Posted by RickC_RCAV8R | Oct 02, 2017 @ 06:29 PM | 2,422 Views
Gentlemen :

The Armadillo quadcopter I recently posted was sent to my mate Dennis (cynr100) in Cairns before I had the chance to fly it . Dennis has posted 3 videos of it in action since he completed the RC gear installations and performed a basic setup . He seems to like the way that this one flies and remarked that it was quite responsive although under powered with the DF units I sent with it . I believe that these fan units will be soon replaced with brushless motors instead . Very much looking forward to seeing the pix of that mod . Those would definitely give the Armadillo a boost in forward flight .

Seeing the video clips of this posted on Dennis' YouTube channel , I have decided to print off the Rotorbits compatible parts for one of my own . My quad will be using a newly purchased pair of AEO 50mm DF units which have 5700KV motors already installed . The specs boast a moderate 385 grams of thrust each on 12.3 volt power . Since the Armadillo's weight came in at around 670 grams , those DFs ought to make her skate !

The linx for Dennis' video clips posted on YouTube are :

Armadillo V-Tail Quad (4 min 42 sec)

Armadillo A-Tail quad (3 min 35 sec)
...Continue Reading
Posted by RickC_RCAV8R | Sep 15, 2017 @ 04:43 PM | 2,585 Views
Gentlemen :

A recent posting on Myminifactory.com by a fellow named Reg Taylor is of a 3D printed model of the Bubbleship in the movie Oblivion starring Tom Cruise . A Russian fellow by the name of Native18 posted a video of his Bubbleship on YT a couple of years ago .

Having seen that video prompted me to download the files for this model and begin its 100+ hours of printing . Note that the printing and finishing of the model itself is the EASY part of this project . Making space for the required RC gear IS the main challenge of this project .

With only the trim left to print off , I have accumulated just over 100 hours with the 3D printer . Countless other hours will be required to properly finish sand the parts for assembly as well as their modifications to be able to install the RC gear within . The drill press in the shop is being used extensively using hole saws and milling cutters to further hollow out the thick / heavy parts of this model . Without any modifications of the parts at all , the weight of them totalled 800 grams ! An extensive lightening is being employed during the mods .

The main body design of this model is very small in comparison to the canopy section . Fitting in a battery within these constructs is proving to be a major concern . If the canopy were to be enclosed with a translucent tinted color shere , placing the RC gear inside of the canopy would be no problem as its diameter is just under 5 1/2 inches . BUT , I want to do things a...Continue Reading
Posted by RickC_RCAV8R | Aug 02, 2017 @ 02:41 PM | 3,152 Views
Gentlemen :

Finally completed the power mains wiring of the Armadillo quadcopter this morning . Ready to ship to my mate cynr100 in Australia a he spoke for this one quite early in its construction . Can't wait to see the videos when he completes this frame with the motors / ESCs installation .

As mensioned in the first construction blog , this project was based upon the Rotorbits construction system using parts that I designed in OpenScad and printed on the 3D printer in the shop . As the model sits in the pix , its weight is a shade over 570 grams . If it performs as well as the other variants of the V3 quadcopter , it will show 'punch outs' which will be ballistic in nature . This one should be a good performer as the other variants are .

So the Armadillo is on a long range flight at the moment . An endurance one to Australia ! Lots of batteries for this flight . LOL Dennis will be completing this one soon and possibly renaming her . The videos ought to be good ones to see . Best of luck with this prototype Denny ! Seeing how well this project turned out , I will have to print one off for myself methinks .

Check out the pix and post any comments or suggestions as you wish . Regards to my mates , readers and everyone who tends to push the construction envelope . RickC_RCAV8R
Posted by RickC_RCAV8R | Jul 28, 2017 @ 06:24 PM | 3,245 Views
Gentlemen :

Too hot to be working on the shop expansion this afternoon so I spent a couple of hours working on a design variant of the V3 quadcopter frame which I have been flying . The V3 frame has proven to be very agile due to its ample power combination and light weight . Although I have not flown it in the ACRO flight mode yet , I am sure that it will have the power as standard 'punch outs' are insane . Ballistic !

The 3D printer has been going full bore making parts for this frame design . I am becoming more proficient with OpenSCAD as the part designs are coming to fruition is short order .

The Armadillo (tentative name) is a variant of the V3 frame with the added twist of a pair of 50mm ducted fan units . The strut mount shown in the pictures was the first attempt at this vital part and is now modified with longer length struts . The question of using this part in the design has to do with its configuration . Up or down . The lower configurated fans would present a look like the standard 'Century Series' fighter jets while the upper configuration presents an A10 Warthog look . If I use the lower configuration , a mounting slot in the DF units could be used as forward LG mounts and greatly simplify the design and overall weight by a considerable amount . I see no airflow problems with the 4 quadcopter motors in either configuration as the DF units are centrally placed .

The 4S battery clamps are fully adjustable for correct CG placement . Having these mounted opposing the DF unit mounts makes the CG offset by these parts negligable . Also , the clamps can adjust for a wide range of battery capacity sizes .

The early construction pix shown of the Armadillo show the early , first attempt , shorter DF struts . Any suggestions for this design would be appreciated as it is easy to modify and reprint parts should they be required .

As usual , regards to my mates and readers . Special regard to those who love to push the theory envelope on occasion . Cheers RickC_RCAV8R
Posted by RickC_RCAV8R | Jul 24, 2017 @ 03:54 PM | 3,579 Views
Gentlemen :

Last weekend saw a day trip with my mate Frank (Mountainrider) to a local hydro transmission corridor east of Castlegar . I hadn't visited this area in quite a few years and was anxious to go . This trip , I decided to take along the Chaotic quadcopter which I had rigged with a DVR camcorder .

Most of the morning was spent looking for an old trail I hadn't travelled since 1974 when I was in high school . Although , we did find some segments of this original trail , Frank's idea of visiting an alpine lake appealed more . The trip into the mountain side to get to this lake only saw one minor obstacle of a fallen tree which we had to winch ourselves over . The Polaris RAZOR has ample power for performing these types of operations , blazing new trails or going thru mud bogs which we found later on .

The alpine lake has very impressive scenery in my opinion . After a quick lunch at this small camp spot , I grabbed the Chaotic and stuffed in a fresh battery . I noted that I had a chipped prop from the trip but decided to fly anyway , IF I would take it easy using the throttle . It was a nice uneventful flight over the lake . My thoughts were to weigh the risks of flying over this frigid water temp glacial lake without any floatation installed on the quad and any possibility of having to go swimming for any wreckage .

Frank shot these pix shown here . The flight video did not turn out at all as the memory card in the DVR was toast ! A major...Continue Reading
Posted by RickC_RCAV8R | Jul 21, 2017 @ 12:04 AM | 3,985 Views
Gentlemen :

I found some time to spend with OpenSCAD in the past few days to work on the previous 3D print of a Rotorbits Vtail adapter . The files presented here are all printable .STL files . All of the examples here are still under improvement but may work as testing parts . Included with the Vtail adapter construct that fits the standard 10mm square CF tubing , is an ESC mounting plate .

Files included are for : 10mm square tubing main spar connection to the 10mm square Vtail construct ,
12mm OD round tubing main spar connection to the 10mm square Vtail construct , and
14mm OD round tubing main spar connection to the 10mm square Vtail construct .

Comments and suggestions for these types of parts would be greatly appreciated . Current idea for printing include a 50mm DF fan unit mount to fit the 10mm Rotorbits square tubing , LED lighting fittings , control surface mounting tabs , etc.

Please feel free to let me know how these printed parts worked for you . Any pix of their application would help my future motivations for these sorts of parts . Thanx for your interest in them .

Regards to all of my mates and readers . RickC_RCAV8R
Posted by RickC_RCAV8R | Jul 16, 2017 @ 06:59 PM | 3,722 Views
Gentlemen :

As there are not any level areas around my work shop where I tend to do most of my multi-rotor flying , I gradually became distressed with that fact . Looking in the scrap pile of freezer panel cutoffs from the shop expansion project , I spied a panel that could be used as the basis for an RC Helipad .

This simple project only took about an hour to complete and consists mostly of the 2 X 6 inch spruce frame and 2 X 4 inch tapered legs . Having these stake like legs aids in the levelling of the platform over nearly any ground . I drove the legs into the turf with a sledge hammer and scrap block (as to not damage the finish) until the platform was totally level .

With this helipad installed , I will no longer have to endure the previously unlevelled calibrations which led to tilted hovering in flight and subsequent drift . Another benefit of having this stable and level pad to land on is that it aids my concentration while trying to negotiate a 4 foot square pad .

Regards to all of my mates and readers . RickC_RCAV8R
Posted by RickC_RCAV8R | Jul 15, 2017 @ 06:48 PM | 3,732 Views
Gentlemen :

Since I have the 3D printer upgraded with printed parts and tweaked out , it was time to try my hand at OpenScad for designing my own parts . This Work In Progress is my first attempt at this exercise and will have to be improved upon . A basic Rotorbits Vtail connector is shown here .

The specs decided upon for this part was to include it as a 'parametric' module so that any parameter of its size may be altered . Having this capabilty allows for the anhedral sweep angle , tubing sizes , fitting allowances , arm lengths and mounting screw holes to be changed at will . As of this printing , I have to figure out the Hull and Polyhedron commands to be able to fill in the vacant spaces between the 3 arms . I believe that the hull commend will be the key to solving this infill problem . As this part sits now , it uses about 16M of PLA filament and weighs about 48 grams . With its 5mm wall thicknesses , it proved to be very strong when tested with a pair of pliers . Only some minor sanding with 220 grit sandpaper and some inside filing of the square tubes was all that was necessary to make this part fit the Rotorbits 10mm tubing . I set the fitting allowance to be .3mm (point 3mm) in both directions . It worx well .

If there is sufficient interest in this sort of thing of 3D printing of Rotorbits parts , I will post further as I go . In the mean-time , I have included the current early version of the printable STL file .

Regards to all of my readers and mates . Cheers . RickC_RCAV8R
Posted by RickC_RCAV8R | Jun 30, 2017 @ 04:59 PM | 5,033 Views
Gentlemen :

Some of my readers and friends have wondered why I have been silent in the last couple of months . Well , it is quite simple really ; the shop expansion project .

This expansion project uses a lot of salvaged materials like the beer cooler / freezer I salvaged along with my mate Frank (Mountainrider) when a local business went south . The original cooler was some 30 feet by 16 feet in size with a large freezer type door and a pair of triple glazed reach-in door sets . Other goodies with this unit was the heavier grade of electrical wiring , boxes and vapor proof fittings . Special product display wiring for lighting is also a part of the display door frames . The plan for this expansion is to provide storage for the tools and motorcycle restorations of my old shop that has to be torn down , and a proper greenhouse in the front , south facing side of the building . Construction of this building is pretty straight forward with its 'beam on post' type / 'post on peir' techniques . An above ground deck , for lack of better terminology . My part of the cooler will make a building which is 20 feet by 16 feet in size . Frank's hunting game storage building will be much smaller .

To date , the materials to construct the deck itself has totalled just under $1000 . Not bad for the size of it really . The main central post and beam structure is nearly complete to accept the roof panel mounting by gravity . I included a number of earthquake type strapping on each...Continue Reading
Posted by RickC_RCAV8R | May 15, 2017 @ 04:09 PM | 5,882 Views
Gentlemen :

A whole new world opened for me in the RC hobby . This recent purchase is by far the most prolific one that I have made in RC modelling in 45 years . An Anet A8 3D Printer . I found this Prusa i3 knock off on a flash sale by Gearbest.com for $161 US . With the exchange and shipping by DHL , the final price landed at my door worked out to be just over $250 CDN . The A8 , in this form of a KIT , enables the lower price . This very quiet desktop printer is capable of printing the most common PLA and ABS plastic filaments with ease .

The kit required nearly 2 days of work to assemble properly and to set up for printing . Building a piece of equipment in this manner enables the user to have the necessary knowledge of dis-assembly and modifications of the printer , its proper setup and any troubleshooting to come . While the printer was in transit , I availed myself to extensive Inet research on the 3D printing subject . I downloaded several tutorial , tech tip , modification and general knowledge videos ; enough to fill some 4 DVDs for the shop reference library . I also downloaded some extra free software like OpenScad , Meshlab and CURA to have the necessary ones to perform complete designs to the printing stages . Popular 3D search engine websites like Thingiverse.com and Yeggi.com provide hundreds of thousands of FREE print files for nearly anything that can be imagined . Simply searching for subjects like Walkera or DJI yields a plethora of printable...Continue Reading
Posted by RickC_RCAV8R | Apr 13, 2017 @ 03:30 PM | 7,154 Views
Gentlemen :

Since the original V3 Vtail tricopter is such a blast to fly , I decided to use up some of the ROTORBITS parts in my inventory to build up a second frame . This frame is yet un-named and I invite suggestions .

My love of the science fiction TV series prompted me to build this frame with a 'spacey' type of body over a simple CF frame . Extensive use of red and black colored PolyEthylene 1.5mm sheeting was used . An 18 inch sheet metal bar folder helped in bending some of the form pieces seen in the pictures was instrumental . I feel that I achieved a simply formed frame of these laminated sheets to form an acceptable body design . Note that these armor plate styled parts are bolted in place at strategic locations with the Rotorbits 2mm bolts and NYLOCK nuts . The addition of the latest installed plastix are glued in place and sealed with clear silicone .

The latest addition to this frame is with regard to the motor nacelle cutouts . When carefully cut out , they simply slip over the Rotorbits motor mounts as a friction fit and work well . A dummy motor helps with the design and installation of these nacelles .

The frame is completed as far as I can go at this point as I await the RacerStar BR2205 motors and 30 Amp ESCs in the mailbox . It will be an anxious 3 week wait to finish this one off . Including the installed KK mini FC , a 6 channel Walkera RX , Gen Ace 3S @ 2200mA battery and the power supply wiring bus , this frame's AUW at this point is...Continue Reading
Posted by RickC_RCAV8R | Mar 22, 2017 @ 04:42 PM | 6,725 Views
Gentlemen :

It is with great pleasure that I can finally offer a video of the Yoni tricopter that was constructed last year . As I was finally able to scrounge up the remaining parts from a crash victim , this 'leftover' was realized . My rcgroups mates Sam (CO2X) , and Dennis (cynr100) were instrumental in their encouragement and advice with this project . Thanx mates ! Without their help . I doubt that this would have ever left the work bench .

YONI Tricopter Mar 2017 (2nd ever flight of my 1st tricopter) (4 min 32 sec)

As noted in an earlier blog posting of this model , its main frame construction is of Lite Ply , StyroFoam and some salvaged aluminum square tubing from an old handrail . The features of the Yoni include a KK2.1.5 flight controller running RC911 firmware , generic 30 Amp ESCs on Gen Ace 3S @ 2200mA power , Emax CF2822 motors twisting Gemfan 10 X 4.5s and my usual wiring hardware trix . This AUW of 950 grams in this configuration yields flight times of approximately 5 1/2 minutes on factory default settings .

The video included is of the Yoni's 2nd ever flight and is the raw footage of that . It is dedicated to my mates Dennis and Sam , of course as it would have never been possible without their input . The stock / default settings of the firmware yielded a flight that displayed exceptional yaw rates and decent lateral and fwd / back transitions . The 'punch outs' are a little weak but may be possibly solved with a different motor /...Continue Reading
Posted by RickC_RCAV8R | Mar 05, 2017 @ 05:23 PM | 7,236 Views
Gentlemen :

A quick salvage project of a crash victim in this ZMR450 . I had a lot of fun with this one over the past couple of years but the 'battle damage' was becoming apparent . A quick , single afternoon salvage and clean up of the frame was involved here . I made a decision to upgrade the motors on this one to 3236s which are now ordered and to complete the wiring cleanup before rehanging it on the shop wall in wait . Besides , the wood stove is lit , the coffee is percolating and there is a snow flurry storm happening right now . Too windy to fly !

One of the features I like to include with most of my models is the installation of a 'buck / boost' power supply module for LED lighting . This type of PSU is capable of providing a 'set point' adjusted voltage that is derived from a wide voltage range input battery source . It is possible to wire in LED / lighting arrays to operate at a different voltage than the battery input quite easily . A highly recommended addition to ANY model .

Other features of this MR is the KK Mini flight controller which will be running RC911 firmware . Also note the use of printed circuit type terminal blocks for the motor connections on each of the arms . These allow for a very quick change of polarity and motor replacement without having to unsolder anything .

Regards to my riends and readers . Sympathies to two of my mates dealing with family losses at this time . RickC_RCAV8R