Nitroholic

Just bought a complete set of glow-in-the-dark parts for an mCX micro heli. Have plenty of spare parts to put together a flyer on this from my parts heap. I now need to do a quick assess of the fleet to check how well each is flying and attend to all the little issues. I think the white shell will go best with the glowy bits 🙂 Also bought and have now received a small vac forming kit. Plan to make some new shells for the little flyers. I can model and then 3D print the moulds and use that to vac form. It;s just an A4 size unit, as I never intended to be doing larger stuff. The PLA prints run at 220C, so the hot plastic shouldn;t be a problem. If it is...then I switch to 3D printing moulds to put plaster into.

I used to run around 1:33, and I always used a good premix oil. Sounds like you are going in the right direction in terms of tuning. The motor is revving out like it should, which is a good sign.

Postman brought me a small vac former. A4 sized base, which will be perfect for my plans to make shells for my micro RC helicopters, plus a number of other small projects I have planned. First, though, I need to 3D print the formers for what I want. Then I can make the shells.

not really now. A basic PLA filament printer can be had for around £200, which isn;t too bad. I have made a load of parts for hte RCs with mine, making battery boxes, servo mounts, etc. If I can model it in 3D software..then I can make it in plastic!

it crashed in a straight line... motor was a 4285 can, 1700Kv. Smooth can too, not finned. It was utterly unsuitable.

mine charges in around 15-20 minutes, but I usually only have a couple of batteries on charge at once. Try them one at a time, see how long. I am usually chargiong off mains too, not from a battery pack. If it's not a pack you know, then it's probably life expired.

Least I can confirm you ordered the right size when they finally arrive 🙂

Picked up an S300 mCX off EBay. It was only £29 and I mainly bought if for the good shell, tail and skid set on it. These are very hard to find for the S300 model, and I wanted a spare. Listing as usual tell you nothing about overall condition, but this one had a broken swash plate, a linkage that had been melted on after they snapped a ball joint off, and a servo that was stuck. Replaced the swash from my pile of parts ( I have a box full of assorted chassis, shells, blades etc. so everything I needed was there) cleaned up the servo and replaced the linkage. Gave it all a clean while it was apart to get rid of any fluff etc. plus I put a drop of oil on the bearings. While I was at it...I have started to adapt a damaged S300 canopy I had to fit on the mSR. It does go...sort of...but the rear mounts don't come close. I will be 3d printing some small pieces to hook it up. I have laso bought a small vac-former. The plan is to 3D print some moulds to vac form canopies. Shouldn;t be much effort to adapt the S300 shell and vac form some that will work better. As well as making some replacements for the stock part. Could have some fun.

I just had to buy some, as I wanted to rig up some 1S packs for my Tandem Twin. This uses a larger version of the batteryand are prety much unobtanium. I needed to find connectors: https://www.ebay.co.uk/itm/301942513575 JST 1.25 2 pin. I bought them so I could graft the right connector on a short tail. I have 3D printed a replica plastic cover that fits in the holder, so I can hot glue the pack in to the cover and plug in the wire.

what indeed .... I melted a diff housing once. But that was a result of putting way too big a motor in and ramping up the volts. I lost drive and found diff oil oozing out where it shouldn't! The bearings had got so hot they had literally melted the ends off the diff and warped the mounts too. That truck was very fast for a short period of time. As long as you don't mind replacing broken bits, sometimes you only find where the limit is by going beyond it.

So....you reckon taking all of the power and putting it through a single diff, rather than splkitting it between front and rear isn't going to put stress on that rear diff....

If you have a spark, and you have compression, it's probably a fuel issue. Take the plug out and leave it overnight so the crankcase dries out fully. Plug back in, prime and try to start. After a dozen or so pulls, plug out and check both plug condition and whether the combustion chamber smells of fuel. If it isn;t....then you got a carb issue. Do you know what carb your engine has? Also..what oil ratio are you using and what sort of 2-stroke oil are you mixing? What is your start routine? For a Baja, I always used the following: Choke on. Prime until the priming bulb is full and you feel resistance. Pull 3 times, the motor should 'cough' but not start. Choke off. Pull...and away she would go.

I used an old Turnigy bag for a while, but I think they have long since stopped making those. More recently, I used a Mil-Tec backpack. It;s a proper rucksack with loads of extra pockets and sections for stuff...but it;s main trick is it zips up, and the zip covers the top and down BOTH sides, so it opens completely. Very durable ( I have been using one on the biker to commute to work for over 10 years, and it's still solid. Not as waterproof as it used to be, but the straps are sound. It also is a Molle pack, so you have attachment points for carabiners, bungees etc. so if it won;t go in, ity can go on the outside instead! They do small packs, but the 36L one is probably right at 55cm x 29cm x 28cm. https://www.amazon.co.uk/Mil-Tec-Assault-Backpack-womens-unisex/dp/B01MCYZ7T7/ref=sr_1_16?dib=eyJ2IjoiMSJ9.GAU2fk4PAi4Oh9KM3FSGauoWtPV-K9GbwdQI7gZUYZhOksTuT9uhpPkh2Jv7S-FFPVBYk5C7S3-QQuzmTHTxu5-pYWLj_VbDzmJsYwj3a1DlqNY6Utwpn4T4V_mEOuIq3c1NTcX1TYMM4c-3uAIoa4pASA-39lvPNLtUjI50g6idX7chyAs2uw1AIIGJseGTa6rLsfokesGbizmgflNX7J_utFKgov6B7Y3JCRoL8I1gtZPQULd6ZI-cTyci8fNSJ7QTqS1zCQoZmpWSznWYW_NSNTSxtNCT9Huuor7izV0.cUZWPEn4TiZhaT16zeVRkqfm4EixcfEi2G0HiK1Svvw&dib_tag=se&qid=1711965775&refinements=p_4%3AMil-Tec&s=apparel&sr=1-16 come in various colours

Imgur for me too. works just fine

Those look similar to the motors on Heng Long tanks. I got some in the garage somewhere I can measure up if that helps