Burko-uk

Eurobricks Vassals
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  1. [MOC] Avtoros Shaman 8x8

    Apologies for digging up an old thread, but Madocca, are you selling kits for this on EBay? I'm guessing not, so you may want to protect your IP on that platform! I won't post a link, as I don't want to advertise it any more than I already have. (Oh, and they're pushing your Tatra Trial Truck and Wing Body truck)
  2. Odd doors, possibly borrowed from the Range Stormer Concept (what became the Range Rover Sport)
  3. Nice to see a different subject being built. Looks great.
  4. I'd say 9394 jet too. It's discontinued now, but in the UK on "Online auction sites" they are dirt cheap 2nd hand.
  5. The sting is at a bit of an angle between wheel, so tries to twist the centerline of the wheel from the centerline of the axle, so it binds on the axle. Using a pulley (with the cross drilled out) reduces this issue as the angle of the string is much smaller as there is less offset between the string paths, and the pulley can cope with larger angles of twist before it binds on the axle because it's narrower, so a double win.
  6. For such a high CoG that's amazingly stable! Love it.
  7. Alternative turntables

    As above, put wheels between two flat plates to achieve load bearing, and a normal large turntable (or ring gear from the bucket wheel excavator) for drive. There are plenty of examples in big crane models if you image search
  8. [TC 11] Razor II

    Ha - Good plan. And easier than rebuilding it with XL's :)
  9. [TC 11] Razor II

    Except it won't get torn apart as it's built like a tank... which admittedly is part of the reason it is as fast as a tank.
  10. [TC 11] Razor II

    Yeah, it ended up weighing more than I anticipated. There is a gearchange mechanism in there too using a servo motor to give a slower speed at the push of a button, however this clearly became redundant so is dead mass now. But that just makes it even tougher to flip or push about by the opponent. Also agree with the XLs being a better option now, but I don't get much spare time, and decided to go with what I had rather than miss the deadline. The arm isn't meant to be fast moving. The primary purpose is to grab a victim, rather than hit it like a hammer. The front wheels are hubs from the "Studded Era" Test Car wheels. I picked those as they are smooth plastic, low friction, so the skid steer wouldn't be impacted. I get the point about the driven wheel location, but all the motors and the battery box, and most of the structure for the arm are all at the back. Clearly CoG will move when another bot has been grabbed, but once grabbed, speed is less of an issue.
  11. 5. Razor II Cat B - PF IR Signature Move - Grabber/Crusher This was going to be Razor from UK Robot Wars, however I ran out of space in the 45 stud cube, so although similar to Razor, I figured it was different enough to be named Razor II. This robot grabs other bots. Weaker machines are simply crushed, tougher machines are dumped in "The Pit". The body work is almost touching the floor to defend against flipper bots, and the bodywork is solid liftarm construction to be spinner proof. The bot weighs in at 1.8kg. It's driven by 2 L motors. The Claw is powered by twin M-motors and the cobra wings (just to look threatening) are driven by an M-motor. All IR controlled. Main_Topic
  12. This is my entry to TC11 - RAZOR MKII This was going to be Razor from UK Robot Wars, however I ran out of space in the 45 stud cube, so although similar to Razor, I figured it was different enough to be named Razor II. This robot grabs other bots. Weaker machines are simply crushed, tougher machines are dumped in "The Pit". The body work is almost touching the floor to defend against flipper bots, and the bodywork is solid liftarm construction to be spinner proof. The bot weighs in at 1.8kg. It's driven by 2 L motors. The Claw is powered by twin M-motors and the cobra wings (just to look threatening) are driven by an M-motor. All IR controlled. [media] [/media] More pics to follow
  13. Lovely machine. I'd avoid WD40 though - anything that WD40 touches will rust, as it lifts off any protective layer of grease and then evaporates, leaving the metal to corrode. Try 3in1, as this is a light oil like WD40, but not quite as light, and doesn't evaporate, meaning no rust.
  14. A planetary set up kind of has three "Axles" in one reduction stage. The Sun (single central gear) the Planets (Typically three gears inbetween the Sun and Ring) and the ring. The biggest gear reduction is between the sun and ring, so you fix the planet gears (Making them effectively idlers, with no effect on the overall ratio), drive the sun, and your output is the ring, going very slow with very high torque, hence, popular for winches. Alternatively you can fix the ring and use the carrier for the planet gears as the output, keeping the sun as the input. Electric low line winches tend to use a two or three stage planetary 'box like this, with the ring teeth cut out of the casing.