R/C Discussion

Discussion in 'General Off-Topic' started by destroyer8769, May 4, 2014.

  1. Blockman

    Blockman
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    That would scare the shit out of me if I saw that


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  2. BlackVenom

    BlackVenom
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    Thanks for the links. I didn't know the non-electric ones weren't regular gas. Gonna have to see what nitro even is...

    And I've played with PiCs.. had a class with them. They're fun and rather easy to program for, however, I'm sure it can get complex.

    EDIT: Ah....
    http://rcvehicles.about.com/od/nitro/f/nitrogasoline.htm

    There aren't any hobby shops (nix the grandma shops) around me except maybe 60mi south or north. Saw a couple rather large (2-3') RCs in a pawn shop here.. may have to investigate.
     
  3. SixSixSevenSeven

    SixSixSevenSeven
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    Picked up a Helion Animus 18SC today, first RC so figured I'd start cheap for now. If I like it I'll look into getting something bigger, if not, well I only paid £65 and I now have a car styled chassis to build a robot on.
     
  4. JAM3SwGAM3S

    JAM3SwGAM3S
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    I purchased a Turnigy Titan Petrol Monster truck from Hobbyking today :D should turn up tomorrow
    Its a 28CC 1/5th scale should be fun
     
  5. Blockman

    Blockman
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    I love the big rc cars, but sometimes the gas ones can be a pain to get started (especially if you use the wrong gas lol)


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  6. SixSixSevenSeven

    SixSixSevenSeven
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    Seen a few people bitching about the HPI savage octane and how its gas engine is crap compared to nitro. They fail to realise that unlike the simple nitro engine using ABC construction, the gas engine has an actual cast iron piston ring which needs heavy break in, nearly 20 tanks to fully break it in and until its broken in the engine doesnt achieve very good compression and is down on performance.

    Had the helion out today, only off of 1 hours charging from the stock trickle charger (need to either make an adapter or swap battery&ESC connections to use my existing charger) so only had a 5 minute or so run time. Christ almighty. I only have experience with toy grade RC cars, I did have a mercedes as a kid which was the fastest RC in the street (a lot of the kids when I still lived in that street would race RC's, always toy grade, there was 1 kid whos older brother supposedly had a "car with a real engine" but I never once saw it come out) but it was still a toy and slow enough that it was possible to drive in the house. This thing is smaller and it seems on grass (which I thought it would struggle with considering its only a 1/18th scale) it is far far more capable, got it out on the tarmac and there were a few traction issues (possibly caused by me being new to driving RC, I may get some street wheels though) but it screams. Considering this thing only does 20-25mph supposedly, I don't want to see what 50mph+ is like on an RC just yet :p

    I've seen a few aluminium hopups etc for my truck, think I'm going to avoid them for now, I don't really see the point of spending a ton of money on metal bits for a £65 truck. I may replace the electronics (right now it has an ESC, flysky compatible receiver and 5 wire 9g servo in one unit), get a 2nd battery and some street wheels. Otherwise its a case of seeing what breaks before getting other parts.
     
  7. SixSixSevenSeven

    SixSixSevenSeven
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    As a laugh I decided to remove the front dogbones from the animus. Considering the animus has no centre differential it does work quite effectively as a rear wheel drive conversion (although really the front differential needs removing too, I just cba to get in there to remove it when I'm just pissing around).

    Gone from yanking trigger and stock motor+gearing just causing the truck to shoot off quite nicely without much fuss from the tyres or gravity to doing burnouts when I launch instead :p No wheelies from a stock 1/18th scale short course truck. Basically acceleration on stock tyres on tarmac becomes a pretty squirrelly affair. Stopping is equally sketchy with it loving to lock the rear (still lacking finesse with operating the trigger in reverse but the ESC does offer braking at least so I'm not just dumping the truck straight from forwards to reverse) while the front casually freewheels. Its a different experience from driving under 4wd anyway, as an RC newbie though I will be switching it back to 4wd rather than sticking it out in rear wheel drive.

    I have ordered a set of 12mm hexes and some street wheels and tyres. The area I will eventually be running the truck in full time is mostly concrete, its just quite broken/bumpy/cracked all over and there is no way I am bashing a road car on it. We'll see how well a short course truck with road tyres fairs, the ones I ordered are 1.9" diameter 26mm with 12mm hubs (why do they throw together different metric and imperial measurements when speccing up RC car tyres, pointless), the stock tyres are 2.5" 26mm with a 7mm hub, but there are a few 12mm hubs from other cars which fit the truck (I ordered a set). I'll lose some top end speed due to the smaller radius but I can probably make up for that with a larger pinion or a brushless conversion in future.
     
  8. aljowen

    aljowen
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    I have 2 rc cars. I have a supa stox and a maverik strada xb evo s

    My supa stox is fully functional but i don't ever use it because i no longer have anywhere to use it.
    [000705].jpg [000706].jpg
    My 1:10 buggy is non functional because a solder joint between the battery and connecter snapped, sparked and blew the esc. Currently planning on getting a hobbywing xerun 2.1 90a.
    [000309].jpg

    The buggy is my favorite, while the supa stox is very controlled and no drama to drive the buggy is absolutely insane, i can also get it to go faster on a carpet track than the supa stox. But in order to do that you have to learn to drift it around the corners because the turning circle is a bit big for supa stox sized track. The other advantage is that if anyone crashes into you (or vice versa) you just go over them :p
     
  9. SixSixSevenSeven

    SixSixSevenSeven
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    1/10th buggy on a 1/12th road circuit, yeah, no :p

    If you cant run the supastox would the motor and ESC combo from it not be suitable for the strada?
     
  10. aljowen

    aljowen
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    Well, possibly. But the ESC was created for rear wheel drive carbon fiber track car. The buggy is easily twice as heavy and is also 4 wheel drive. The motor in the supa stox gets pretty hot during operation on the track, i can only imagine how hot it would get in a 4wd buggy driving over grass etc. The ESC also only supports 2 cell batteries while the buggy takes 6 cell batteries.

    As for the buggy on a 1/12 carpet circuit you would be surprised. While it cant keep pace with any of the top league professional people who went to the club i used to go to it is more than capable of keeping pace with the people who go for fun.
     
  11. SixSixSevenSeven

    SixSixSevenSeven
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    Seriously? Sure its not 2 cell LiPo which puts it equivalent to the 6 cell NiMH of the buggy in RTR form. Even my little 1/18th truck is running on a 6 cell NiMH, runs ok on 7 cell NiMH (8 does give problems though) or 2S LiPo apparently (just doesnt have cutoff for LiPo operation).

    Can get some ESCs cheap on hobbyking anyway but if you're saving for another system entirely on the buggy then you might aswell hold off I guess.



    Not sure if there are any RC clubs in my area. I know there is an indoors track in northampton but I think its inhabited by drifters, otherwise there is an RC airfield near bedford I think.
     
  12. aljowen

    aljowen
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    Yeah, your right, i was looking at lipo specs. Derp.
    We have one nearby that has a carpet circuit, drift circuit and buggy circuit. http://www.trcc.org.uk/

    Problem is that i haven't been in about 8 months and no longer have brca membership. My uncle used to take me but he has lost interest and moved on to quadrocopters. So i have no way of going or no one to talk to if i did go. So i no longer visit.
     
  13. SixSixSevenSeven

    SixSixSevenSeven
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    Turns out the schumacher racing site has a listing of UK clubs
    http://www.racing-cars.com/sitepage/uk_rc_clubs.html

    Perhaps if I one day get a bigger sized car I'll drop into the few I've found in my travel-able area. Not worth it with a 1/18th scale short course truck costing a whopping £65, although I've heard some of the larger clubs are now running 1/18 classes on their 1/10 tracks.
     
  14. aljowen

    aljowen
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    Im not sure if they are all like the one that i went to, but on the weekend they raced and on wednesdays they had a practice night. On the practice nights people just took whatever they own on to the track for fun. Which is why i took my 1:10 buggy onto a 1:12 carpet racer track. Sometimes there are people who are selling their old rc cars too. So its probably worth going along anyway to see if there is anything on sale if you are interested in pre owned, also probably worth taking your truggy round their track. The one i went to let new people turn up free of charge to the first few nights. But if you do want to go you will need a brca license to ensure you are correctly insured etc.
    Either way it is probably best to see if you are interested in any of the clubs before buying a larger car since they aren't very cheap.
     
  15. falllguy

    falllguy
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    This is my currant fleet of rc's
    (imported from here)

    (imported from here)

    (imported from here)
    Thinking of selling the losi 5ive though
     
  16. SixSixSevenSeven

    SixSixSevenSeven
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    Got a standalone receiver on its way which is compatible with the stock helion transmitter (its actually a rebranded flysky system). Don't have a standalone ESC yet (do have servo) so I can't swap out the single combined ESC/receiver/servo combo for separate parts just yet.

    But for now, http://www.beamng.com/threads/9779-BeamNG-Remote-control-All-controllers-all-day
    Hmm. Wonder if I can get an application of my own to transmit data to that :p Think I might get an arduino to read the RC receiver, relay that data back to the PC and then have a PC application relay that to duk3luk3's plugin.
     
  17. aljowen

    aljowen
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    Couldn't you just hook up the receiver to a usb HID usb circuit board with analog inputs?
    eg, http://generichid.sourceforge.net/ has some info
    The teensy 3.1 is the latest teensy board, it has some analog inputs: https://www.pjrc.com/teensy/tutorial4.html

    Then the controller should work with any game and also on many different platforms, for example android will support HID games controllers.
     
  18. SixSixSevenSeven

    SixSixSevenSeven
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    No point buying a teensy when there are several microcontrollers in my collection already some of which do support USB HID but not under "arduino" - or rather Energia which is a fork of the arduino IDE for texas instruments devices. That does remind me though, one of my Energia compatible boards does have ethernet so I could skip the windows application and simply have the "arduino" read the receiver and send it straight over TCP to BeamNG anyway.

    The other thing is that you don't need an analog input. An RC receiver outputs a digital signal. Your ESC relies on a digital signal. A servo uses either an analog or a digital circuit to respond to the digital signal.
     
    #58 SixSixSevenSeven, Aug 24, 2014
    Last edited: Aug 25, 2014
  19. JAM3SwGAM3S

    JAM3SwGAM3S
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    Wow that's quite a collection
     
  20. Blockman

    Blockman
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    Holy shit I want all of that. Definitely gonna buy a rough rider or a grasshopper


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