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>> Home > Tags > wiring

Slightly confused newbie by J. Barry Chief Petty Officer   Posted: 3 hours ago
Whilst I am not new to boat modelling, I am new to r/c and I’m confused about an issue I have. You can see the setup in the images. Everything works fine, and testing the boat on the pond; I was very pleased how she ran. The issue is this: if I set the trim switch (bottom right on transmitter image) to reverse, the rudder works normally. If I set it to Normal, it is reversed. If I set the throttle trim switch to normal, the throttle is reversed, and if I switch it reverse, the motor runs a full throttle, with the joystick in the neutral position! All the other trim controls are in the neutral position, as in the image. I have double checked all the wiring, and would really appreciate some help on what I am doing wrong.

Painting by MouldBuilder Admiral   Posted: 20 hours ago
I must admit that the painting process is not my favourite. It takes so long and time is always at a premium due to work commitments. I rush it a bit so that the build can continue. I fitted all of the windows into the deck structure and covered them with the low tack film. I then primed, two coats, painted, two coats followed by two coats of lacquer. I am quite pleased with the results even though it is not perfect. I decided not to fit the deck until all of the electronics, including the ESC, battery and receiver had been installed. This is because one of the big problems with this model is the lack of room to work in once the deck is in place. Another problem I encountered was the fitting of the tiller cranks onto the rudders. If the instructions are followed, it is almost impossible the adjust or remove them once the deck has been fitted. I solved the problem by reversing the cranks and bending the connecting wire to miss a bulkhead support. The screws can now be reached from the deck opening. I have now completed the majority of the painting and have started to assemble the remaining parts. Currently I am doing the wiring of the lighting and making a couple of circuit boards. There are a lot of wires involved so to reduce the amount I have decided to us e a common negative. (Cannot remember what this is called right now). There are still a lot of wires and they are mostly coming out from the cabin structure. I have decided to introduce some nine pin connectors to make cabin removal a lot easier. This is quite a big job and will take a little while. I really enjoy this bit. The results add that little bit of extra satisfaction when it all works as it should.🤓 The top search light assembly came as a bit of a surprise. It is manufactured from nickel silver plate and requires soldering together. Even though I am a precision engineer, I have not soldered a box since I was at school. Once I stopped burning my fingers with the heat, I quite enjoyed the assembly even though it would have been useful to have an extra hand and took the best part of today to complete.😤 I can honestly say that I have enjoyed most of this build and even though earlier on I was thinking to avoid Aero-naut models in the future, I have changed my mind. They are very cleverly designed. I expect to complete this model some time in March. That would be the first for me to complete in recent times even though I have two others on the go and one new one in its box ready for a Summer start.😊

Mtronics W-tail marine mixer connections. by RNinMunich Fleet Admiral!   Posted: 6 days ago
Evenin' Colin, Understand. But; Not sooooo expensive when you consider that you are effectively getting 2 ESCs in one compact board, plus the rudder mixer. With the Mtronics gizmo you still need the separate ESCs, which also makes the wiring messier!🤔 Taycol and converter board are packed up and will be on it's way to you per DHL this week. Ought to be with you before April!!😉 Look forward to the pics of the Commander renovation. The paddler looks neat as well👍 Cheers, Doug 😎 PS there are also outputs for controlling Smokers or Sound Modules on the AC board.

Mtronics W-tail marine mixer connections. by TOWN3810 Sub-Lieutenant   Posted: 6 days ago
Hi Mtronix provide excellent after sales service on their products 01943 461482 They will provide a wiring diagram But why not control each esc from 2 separate channels on your transmitter and forget complex mixers Just a thought or it might be the wine talking again Cheers Ian

Help with vintage rc. by JOHN Lieutenant   Posted: 7 days ago
hi there I am in agreement with DodgyGeezer about the reliability of vintage radio gear. I believe the Digi4 servos were Linear movement, rather than rotary as in modern day servos and yes some of the old versions were 4 wire; with male plugs at the end. One of the main downfalls of these old sets was thing called 'black wire' its where the negative side wire in the electrical wiring system actually turns black and corrodes. The only way to repair it is to actually renew the wiring and once you have it in one part of your radio system, it inevitably works its way through the whole of your radio system. The transmitters do turn up on that popular auction site. I have often fancied purchasing one just to play around with it - but I wouldn't trust one operating a precious model on the lake, because I can remember the 27 mghz radio gear being very prone to interference from the slightest thing.👍 john

Aeronaut Pilot Boat by MouldBuilder Admiral   Posted: 18 days ago
Hi Ron. I have a reasonable knowledge of electronics and wiring but my difficulty lies in the circuit board designs, especially when IC`s are involved. Fortunately this site has some very good people willing to help. I have been helped a lot by Doug, (RNinMunich) who is always happy to advise. Due to only requiring a small quantity of electronic items such as LED`s at a time, I buy most of them through ebay. I would recommend bright_components for LEDs and resistors. They sell most things needed for the boat builder where electronics are concerned. 😊

Aeronaut Pilot Boat by RonW Petty Officer   Posted: 18 days ago
Hi Peter, Thanks for idea for making easier access to Rudder Connections. I have modified mine to similar to yours and all seems well so far. I have not continued with "above" Deck Building but that will be next on the plan. How "Electrical Minded" are you regarding LED wiring etc.? I am looking for a good Website, both for getting advice on Wiring along with suitable supplies for UK source. Any ideas? Thanks again. Ron

Cabin detail part 6 panel light by mturpin013 Fleet Admiral!   Posted: 23 days ago
Cabin detail part 6 panel light The panel light presented a difficult challenge in that I assume the real one has a tubular light fitting in it, difficult in 1/12 scale. However, creating the tube assembly was not difficult using some annealed 1/8” brass tube and making a bending jig, (simply a 1/8 grove milled using a ball ended slot drill into a piece of hardwood I formed the tube into the required shape. I used the back of the jig to hold the piece while I filled the tube half way through along it top inside edge @ 45 degrees this is where the LED tube will fit. The LED tube is from one of the new type LED garden light bulb that use a small solar panel to illuminate it during the during dark hours. Smashing the bulb leaves 4 filaments which can be used independently, these are very delicate and need the wires attaching very carefully finally feeding it into the brass tube and then after all this fiddling, if it still lights, epoxy it in place. The next job is to make some brackets to fix it to the instrument panel. The bracket was made from 1/8” bore tube and some 0.010” brass shim I drilled some holes in the sheet prior to cutting to size, this was done using only a 1/8” dia centre drill and then enlarged with a clock makers reamer until the tube fitted snugly through this was then soft soldered in place. The whole unit was then epoxied in place on the instrument panel. All the wiring for the panel LEDs can now be completed ready for connection to the random flashing circuit board. (this came as a kit for just £3:90) The circuit board is fastened to the panel with a sub-board made from a scrap piece of ply with PCB supporting pillars in the corners, when this is completed I will post a video of it working. The LEDs on the circuit board are only for testing and will be replaced with the panel LEDs.

Sketches finally.... by Joe727 Fleet Admiral!   Posted: 25 days ago
The horizontal tin can design worked well, so I decided to do another and describe the build. First photo shows the original smoker, it uses a vertical mount squirrel cage type CPU fan. The majority of CPU fans are horizontal so I will build a new smoker with the more common horizontal fan. See sketches attached which are a cut section thru the tin can to show the interior. This explains my design with a stopper that holds the wires and wick. Shows the heating element so that it is above the fluid level. The stopper design makes it easy to remove and allow for any maintenance necessary. Fill fluid can be through the stack tube or through the stopper opening. I have been using the stack tube on my first smoker so as to disturb the wick and element wiring less. Please review the drawing and let me know what questions you have. Next I will take photos as I punch opening in the cans and solder the brass tubes. Cheers Joe

Fairmile D 1/24 Scale Build by DodgyGeezer Commander   Posted: 27 days ago
"........Regards, Doug 😎 BTW: still waiting for the pics / videos of your 'Hooben' (?) and the Perkasa...." That reminds me - how are you coming along with the Taycol Board tests? And the modified circuit? I remain interested to see what you have done. Have I missed the post? ".........Do those boards follow the circuit diagrams on the Taycol web site? I seem to remember that you said you had 'refined them slightly'? Hi Dodgy, The board for Colin's Supermarine yes. After I modified my original version when I discovered excessive heating effects during initial trials. The 'little ones' I made for my Taycol Target no, not quite! Will publish details, with wiring diagrams and test results, in the relevant blogs shortly. Cheers, Doug 😎..........."

Smoke generator by jbkiwi Commander   Posted: 1 month ago
Have just made a prototype of a fan forced smoker which seems to be working well (despite breaking the heater coil by moving it while hot, - had it apart, broke wire, screw and washer repair, not quite as hot) I bought a couple of Heng Long smokers (for R/C tanks or cars) to play with, for $10 NZ each(or 5.3 Euros to you Northerners give or take a yen) from Bangood and just bought another from Ebay. There seem to be 2 different models, as one has a long coil with a lamp wick draped over it, which is sitting in the oil reservoir, the other has a small coil inside a piece of heat resistant woven tubing (as you might find insulating toaster/heater wiring etc) which acts as a wick and that also sits in cotton wool in the reservoir, (this seems to be the better of the two) Tip - don't fill the tank right up, only enough to soak the cotton, element should be just out of the oil. The wick loads the element. The better model seems to have a black top to the tank (also maybe either brown or black tank) and the other has a brown top and dirty brown tank. As with most of this stuff you won't know till you get it what it's going to be. What I did was remove the tank and cut off the pump tube just in front of the screw lugs (see black line in photo) then fitted the tank, and a 40x40x10 5v ESC fan (voltage controlled by a UBEC set to 5v on the jumpers) into a plastic electronics utility box from Jaycar (our local electronics and hobby store). I made up a double JST lead for the 2s 1800Mah Lipo and fired it up (using baby oil). It's pretty much silent and smokes well once it gets warmed up, ( starts smoking in about 5 seconds) You could control it (on/off volume) by either a remote on/off switch or perhaps a small cheap 10A brushed ESC. I would leave the fan running and control the element to avoid burning the element. The original pump tank inlet hole seems ok as is (approx 1.5mm) but you could enlarge it very slightly to get a better flow if you could find a better oil. At the electronics store they have proper smoke machine oil for $20 NZ per litre so I may have a look at that. The reason I went for the fan idea was that I found in std pump form, if I immersed a tube from the tank in water, it sucked water back into the tank. I was hoping it would pump smoke out of my HSL exhausts at water level alongside the cooling water but it would need a very light non return valve to do this. The fan seems to pump the smoke through 2mm ID silicone tube ok, so tubing of similar ID to the OD of the tank outlets should work well. These pumps in original form work pretty well for the price, and are cheap enough to keep a few for spare elements, the only thing is they are a bit noisy but in an 'engine sounding' way, (might add to the effect on a tug or work-boat though) What you have left after this mod is a very handy little geared motor with an eccentric output wheel which could be used for winches, radar and whirly bits of any description (see pic of motor leftover and original) To avoid burnout, these should be run on no more than a 2s (around 7.5v-(suggest 8v max with fan running) The other tank is going to work a lot better than this one but I'm not making a tug, just want a bit of exhaust smoke on start-up etc to go with the 2 sound units. Very cheap to make (around $25 NZ with pump, box, fan and UBEC all through Ebay, Aliexpress and Bangood (and local electronics store) If you wanted to run an ESC to control the smoke and you have no channels left to control it proportionally, you can always try using a second receiver bound to your TX, (if your TX will allow it,) power it and a brushed ESC (wired to the element) as normal and use the throttle channel to plug in your smoke control. This should work if you want more smoke as you accelerate or if you are using only 1 stick on a 2 stick TX you could use your 'elevator' stick pushed up (or a toggle switch if available) to start/stop the smoke (through the brushed ESC setup) . This setup weighs 100g (10g more than std) The quest for lots of smoke continues Will try to upload vid later and update progress.

Electronics,wiring by Joe727 Fleet Admiral!   Posted: 1 month ago
Ed, Very true, it's actually very orderly as I am meticulous when it comes to electronics, it does look like spaghetti now! I really enjoy it and this is a piece of cake compared to the vacuum tube / valve amplifiers that I design and build to challenge myself. Thanks for the comment. Joe

Electronics,wiring by figtree7nts Fleet Admiral!   Posted: 1 month ago
Spaghetti, Isn't it interesting how one knows where all the wires go. Except someone else looking in!😉 Regards, Ed

Decks & hatches. by robbob Fleet Admiral!   Posted: 2 months ago
Because I need access to the wiring at both ends of the boat I formed the framework of an opening at the bow to make the dummy hatch into a real hatch. In a similar way a hatch was formed in the rear deck which will give me access to the wiring, rudder servo and the ESC cooling. It’s going to be quite tight to get all that into the cavity under the rear deck but I’ve done a test fit and it will all go in but will involve some ‘keyhole surgery’ through the rear hatch opening when I get to the stage of installing all of the running gear…🤓. Both of these decks were glued and pinned in place and some packing tape used to pull the decks firmly onto the frames. The side decks were also trimmed for best fit and secured in the same way and when all was dry and set a small hand plane was used to trim them flush to the hull sides. The next stage will be to fit the balsawood blocks at the bow and shape them to the hull…’s the tricky bit I’ve not been looking forward to…😟

Electronics,wiring by Joe727 Fleet Admiral!   Posted: 2 months ago
My batteries arrived, could not find locally so ordered through Walmart online. Two - 6volt 4.5AH, wired in parallel to give me 6v @ 9AH. Used inline fuse, prior to switch, then on to the esc, a Dynamite Tazar 15 T marine type. On/off switch will operate from outside so hatch will not have to be removed. Had some real nightmares trying to program this esc! Setup lights would not come on, went through all procedures, slept on it tried ecpvery website, tried again today, nothing. I was about to look into a new purchase, THEN LIKE MAGIC.... I mistakenly switched it to my zBrooklyn Tug mod on th TX which uses the same esc, and it startled me with the motor running and rudder moving. Everything worked great. So I just copied all of the settings into this build on the TX. HAPPY NOW Photo shows the mass of wires that allows me to shift the batteries for final ballasting, they will be tucked away neatly as build is finalized. Regards, Joe