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Found 6 results

  1. Hello, I want to share with you my first creation after 20 years in dark ages without lego Inspired by official lego model 42005 Monster Truckgreat color designoptimized for playabilityenhanced functions:* better steering radius (only front axle steering) new functions:* reel with hook* tilting trunk* openable gull-wing dooras any other tracked vehicle on hard floors it lacks, better play with it on carpetor as an alternative use big wheels (41896 43.2 x 26 Technic Racing wheel + 45982 Tyre 81.6 x 38 R Balloon) Side by side comparission with 42005 (with wheels and tyres)130 pages of generated instructions for intermediate level builder (A4 landscape orientation) full gallery HERE moc details + instructions on https://rebrickable.com/mocs/MOC-19398/klimax/monster-truck
  2. Hello everybody and let me present my version of a modified 42005 Monster Truck. It was my second set after my "dark age", that I've bought many years ago, after 42029 as supplementary set with a lot of useful pieces and planned to use for a live axle suspension and some other features for 42029 model. However, I liked the set as a simple and functional model and re-assembled it several times. Here is the model and later I'll provide the all details: A month ago, when I tired of infinite attempts to turn 41999 into a Muscle Car (the chassis isn't rigid enough, but I already did a great progress and hopefully will share it once) I returned to this model and set the task to motorize it adding 4WD, but keeping 4 wheels steering and current suspension (keep the original construction as possible as I can). First, I've analyzed the all existing attempts that I could find over EB, Rebrickable and YouTube and it happens that there were several MODs by different authors: First of all, it's @Splat’s MOD with all steered and driven axles (see topic here). I see no reason to duplicate its description, so let me just note that he saved the necessary features with adding Servo + L-Motor mounted under the hood and trunk. The chassis configuration is 4x4/4 or 4WD-4WS. It’s the best motorized model, I think, because of amazing simplicity and performance, but unfortunately it has a kind of “articulated” steering that isn't real, so was trying to made a "real" 4WD-4WS version, using this model as reference. Another one is Jan Dvorak’s (is he on EB?) MOD with all original features supplemented by on-axle L-Motor that drives the rear wheels and Servo for the 4WS. He added an additional 5X7 frame with differential that provided a necessary rigidness. The chassis configuration is 4x2/4 or RWD-4WS. Personally I don't like such a long axle sub-frame. However I've found a good idea of vertical gears inside the central shaft. The third one is @codefox421's MOD, inspired by Splat’s version, with the original front axle and non-steered custom rear axle with on-axle L-Motor. His custom rear axle, based on two portal hubs, is a quite compact and simple, but has no steering. The chassis configuration is 4x2/2 or RWD-FWS. It looks trial-ready with the portal hubs, but it's nearly impossible to add the steering here, so I got nothing from this model. An unusual @Tommy Styrvoky's MOD with an interesting feature: he modified the front axle, not the rear one, by adding a solid drivetrain with worm gear and on-axle M-Motor, so result is a front-wheels driven Monster Truck with oversized fake engine. The chassis configuration is 4x2/4 or FWD-4WS. Very aggressive! WRRRRR Daniel Wirasantosa’s (is he on EB?) MOD that differs from the previous ones by using of chassis-mounted L-Motor that drives the rear axle (that has a bit low ground clearance due to the 5x7 frame) and, moreover, he used a custom steering shaft that comes directly to the steering rack. The chassis configuration is 4x2/2 or RWD-FWS. Starting this version, I got a more or less defined plan: 4WD with off-axle (chassis-mounted) L-Motor that drives the both axles through the existing “drivetrain” (former steering shaft) and the off-axle Servo that steers the both axles through the custom steering shaft above the driveshaft. There were two more versions: Michael M’s stretched one and LEGOTechnic360’s solid-chassis version with no suspension, but they didn't help me with any new ideas. Nothing personal, guys, if you're reading it, I just had a full and consistent vision of my further MOD: Hull - the original with no changes. Axles geometry - original. I tried to save the all things like the wheels location, suspension mounting points, ground clearance, steering angles (that are even bigger a bit now)… And I still can't believe that made it, after a thousand tries! Suspension - original, with no changes. However I put the hard shock absorbers in the rear end, as the default ones were too weak to keep the BuWizz battery. Wheels - original. I decided to keep the original wheels and tires with no giant crawler ones or even Claas, that are too big even for a Monster Truck. Frame - mostly original, but possibly modified since it will have an L-Motor and Servo mounted above the axles (right under the cargo platform and hood). Drivetrain - it must be the ex-steering shaft that comes through the cardans inside the "big" ball joints to the both axles, connected to the L-Motor via the set of normal and clutch gears. Steering - for the all wheels, like in the original model, but the steering shaft comes above the drive shaft, in parallel with it and can slide a bit while the suspension moves. Enough the words...The most interesting part starts here. Following my plan, the bigger challenge was to modify the original axles - I tried several options, even trial-like with solid axles, but 4WS provides an amazing maneuverability due to big steering angles, so axle diffs are likely vital for such model (solid axles were making a permanent clicking noise in the transmission even with motor stalling sometimes) and I decided to make a fast Monster truck, not a slow crawler with a high torque. The drive train. There you can see how I did it: L-Motor rotates a set of 8T and 16T normal and clutch (required for the steering shaft) gears and then the main horizontal shaft, that were used for steering in the original model. After that the shaft rotates the 12T double bevel gears (ex-pinon gears from the original model), than 20T gears below, single-bevel 20T and the differentials. As result, the gearing ratio is 1:1.667 X 1:1.4 = 1.2334, and provides about ~100 RPM with 15.12 N.cm torque. The wheels connected by a wheel hubs, since I wasn't able to use the universal and CV joints with affordable steering angles, wheels position (I kept exactly the same position as in 42005) and rigidness. The steering. Here you can see the servo (mounted upside down in order to provide more space for the battery block above, steering shaft that goes above the driveshaft, 12T gears (pinions) and 13L racks joined to the wheel hubs. In order to allow the suspension travel, the gears has 1/2L offset from the racks and slides together with the shafts along the mounting points when the suspension compresses. It's a fully legal, but still allowed in LDD and works like a charm! The only mistake that the hubs must be from Claas, but they aren't presented in LDD unfortunately: Just to explain why I used the clutch gears (but with no gearbox actually, ha-ha ), the drive and steering systems intersects so hard, so followed TLG way and used the same solution that they did in the official models (42029, for example) - passed the one through the other. Green is a drive subsystem, blue - steering. The Axles. Here you can see how the steering shaft slides by 0.5L (notice the gap between the 12T black gear and LBG liftarm) - it provides about 1L suspension travel for the both axles. Other images, the story of a modified hull (by Phil), LDD file and instruction in PDF are coming soon...
  3. On August 8, 2016, I said I've had the set on display for a couple months, but I finally made a C-Model. And it's actually a monster truck. The body is completely my own design. And it uses something I saw in a rock crawler, by the builder "Max Lego." When one turntable turns one way, the other one turns the opposite way. There have to be obstacles of the same size for each axle, or the body tilts. Please tell me what you think, and have a great day.
  4. I would like to present my motorized and remote controlled (IR) version of this year's Monster Truck set (42005). My first goal was to keep the overall look and dimensions the same as the official model: The wheels, chassis and body are in the same positions, Only the axles, inner workings, and battery box have changed. My second goal was to somehow get the vehicle to have both steering and 4WD: As you can see above, I achieved the steering by making the entire front and rear axles turn via the use of gear racks and 6L links, while the drive goes through the ball joints, differentials, and portal hubs. Steering is handled by a PF Servo Motor, while drive is handled by a PF L motor. It is powered by a PF Rechargeable Battery, and a PF IR Receiver V2. My third goal was to increase the vehicles clearance as much as possible: And my last goal was to maintain a good amount of articulation: I had to modify the suspension attachment to allow an extra degree of movement to allow the suspension to operate smoothly. It runs quite well over small obstacles, however it is very top-heavy, so it does roll over quite easily. This isn't helped by the fact that as it turns, it leans outwards (opposite to how a skateboard works). Here are the parts (guts) that I had to remove from the original model: All pictures can be clicked on for larger versions at Brickshelf (once moderated). Here are some more pics: And last but not least, here is a link to the LDraw file: 42005_motorized_monster_truck.mpd Overall I am pleased that I was able to get this motorized given that there was only a small space to work with, and the model is very sturdy. I hope you like my motorized and RC 42005 Monster Truck. Any and all feedback/constructive criticism welcome. Edit: I have submitted this MOC to Rebrickable. Edit: I have created a quick video: Sorry about the audio quality - it was a very windy day!
  5. Hello all! I think 42005 is a good kit to convert into RC crawler. After a few weeks of work, here is the RC Monster Truck. As I don't like the IR control idea, so I take some RC electronic: 1. RC 2.4g receiver 2. ESC (Electronic Speed Controller) 3. 9g servo with custom servo mount With some soldering and drilling with custom parts, This baby now controlled by 2.4g RC transmitter. The car can use both Lego power function battery box or 2S Lipo. Powered by a 2S 900mah lipo, the running time is over half an hour with the L-motor. Currently, the car is rear wheel drive, I have tried some simple steering design but as the front part is not horizontal, the front wheel is forced outward. Anyone have ideas on converting this car to 4wd?
  6. Hello! As I have recently moved to Vancouver, most of my Lego has been, and still is, packed in boxes. On my move, I purchased set 42005 Monster Truck (admittedly for the tires, ball joints and frames!). I have really enjoyed this small set, but the more I play with/look at 42005 I feel like TLG didn't do a very good job on the bodywork. I have tried to remedy this! Have a look... Mod: 42005 Mod Oringinal: 42005