Tracked vehicle

Eight wheel
https://www.youtube.com/watch?v=NmrPJjBmSDU Eight wheel setup. Two wheel pairs pivots about an axis. ASI robots

https://www.youtube.com/watch?v=YgHf9UsfCbQ Two pairs of wheels pivot about an axis(four), driven by four dc motors with planetary gear headset. Best method for rock climbing. Each wheel pair angle is measured as it climbs over obstacles, providing proper traction control. A mobile robotic platform with autonomy. The chassis concept of the platform born while playing with Lego blocks but the practical implementation experienced 3 generations or versions before outdoor tests. While the last version is still a model it provided information and scientific data about its dynamics resulting in several Latvian patents and published scientific papers. We still have a plan to create a fully functional autonomous robotic platform and part of the RobotNest team is working on the next version of the robot attracting young researchers from Riga Technical University. Project is still non-commercial. http://www.robot-nest.com/#our-projects

Don DIY
US army tank tracks are available here: http://youshouldbuildit.blogspot.com/p/blueprints.html and DIY tracks Blueprints video. This is a slide show of my homemade mattracks made for my trike to haul firewood and timber out of the forest during the winter. Video shows a standard 25mm, 3mm pipe milled down to 2mm for fitting a bearing. First video of four in the homemade ATV tracks build series. This time I'm welding together the sprockets and turning bearing brackets and rear axle wideners in the lathe. See DIY sawmill. On ebay "personal tracked vehicle" plans. https://www.youtube.com/watch?v=HYLazxjcFLk   http://youshouldbuildit.blogspot.com/p/blueprints.html
 * https://www.youtube.com/watch?v=YJXprgSDJ6Y blueprints, free google drive download of track plans

3d printed
https://www.youtube.com/watch?v=jE9xyDmjvcw I've completed 2/3 of my track system and give it a test run. I've very, very happy with the results of the test. I also spend a lot of time in the video explaining the design and engineering of most of the parts including gears, drive shaft, axels, wheels, trucks and floating idler system with automatic track tensioner.

'''HOW to mount a bearing on 3d printed driveshaft with two fiber tubes. 36min ''' Uploader provides detailed information. At 47min 3mm steel pin as pivot shaft between to plastic pieces, shaft is clamped tight with center grub screw. Tyres printed with flexable Ninjaflex filament.

Variable speed drive shaft
https://www.youtube.com/watch?v=zoaHeamUqBE Robotics engineers at SRI International in Silicon Valley have developed the first new rotary transmission design since the invention of the Harmonic Drive gear. https://spectrum.ieee.org/automaton/robotics/robotics-hardware/sri-demonstrates-abacus-rotary-transmission abacus drive, replaces harmonic drive, which has the lowest backlash. Harmonic gears are great, but they’re also superduper expensive, because they require all kinds of precision machining. Alexander Kernbaum, a senior research engineer at SRI International, has come up with an entirely new rotary transmission called the Abacus drive, and it’s a beautiful piece of clever engineering that offers all kinds of substantial advantages. See Gears robot.

Traxxas
the tracked design of traxxas are hacked and scaled for UGV robot
 * https://www.youtube.com/watch?v=IzzWYvWjA3A copyright issues on Nero and Traxxas We have read online that there is an open lawsuit going on between Traxxas vs Hobbico. The Lawsuit is about patent infringement on the Suspension design of the ARRMA Nero, from Traxxas. Visually, to us at least, the cantilever setup has been long used - but by Traxxas, when in the RC world. To us, it looks like a close use of the Traxxas Patented Suspension (Our opinion only).

https://www.youtube.com/watch?v=viSu63xaGIg snow road conversion  uses http://www.integy.com/st_prod.html?p_prodid=10854 Snowmobile & Sandmobile Conversion for 1/10 Revo, E-Revo & Summit, require T4123 T4122SILVER  With our Snowmobile & Sandmobile Conversion for 1/10 Revo, E-Revo, and Summit you can take your monster truck over the snow, across the sand, and practically wherever you want to roll! The conversion features anodized aluminum construction, heavy-duty all-terrain treads, and turnbuckles for easy maintenance. Available in anodized blue, green, orange, red, purple, silver or gunmetal. Each kit also includes a pair of adjustable shocks for use with our T4123 hubs. Sold in pairs (two treads per package.)

www.integy.com/st_prod.html?p_prodid=15510&p_catid=268&ratesortby=New Traxxas

http://www.integy.com/st_prod.html?p_prodid=19221&p_catid=73&ratesortby=New T2 Snowmobile & Sandmobile Kit for 1/10 Revo, E-Revo & Summit, require T4123 C25305SILVER

https://www.youtube.com/watch?v=1BEZhAqv0FQ idea for UGV suspension system. Shock absorber mounted high and parallel with chassis. RC cars https://www.gearbest.com/r-c-cars-c_11304/?lkid=10105291. unboxing video of ARRMA NERO 6s BLX. Length: 22.1 in (560 mm) Width (front): 18.1 in (460 mm) Width (rear): 18.1 in (460 mm) Height: 8.5 in (217 mm) Wheelbase: 14.9 in (378 mm) Weight: 13.4 lb (6 kg)

RC model plans(tanks)
https://www.rctankwarfare.co.uk/forums/viewtopic.php?f=150&t=13714 from RcHobby
 * http://www.scaledtanks.com/news.php linked from Tankman101 youtube videos.
 * https://www.youtube.com/watch?v=OX4m9BL-0hI Tamiya truck trailer rear end. vertical suspension that can be raised or lowered.
 * https://www.youtube.com/watch?v=-41yxvyRXFk Custom R/C Ripsaw Tank Build Ep.1 https://www.facebook.com/epicbuildnz. standard 428 o ring mx bike chain and sprockets with 15mm x 5mm sections of bar welded to the chains. I would recommend using non o-ring chains if you were going to replicate this as the rubber o-rings didn't really like the heat of the welding!﻿ aming I think what John was asking, how is the drive going to be split, if it is only a single engine with no transmission then its the same as having a locked diff in a car and won't turn. He could possibly mount another two small centrifugal clutches on the rear sprocket with mountain bike disk brakes attached to each.  That would give him some slip in the final drive line and independent brake control of each track.  Good work EpicBuild.
 * https://www.youtube.com/watch?v=l_S1TlKuiz0 rc tracked robot, http://www.crashman.estranky.cz/clanky/modely_-roboti/pasovy-model.html build log

Heng long
https://www.youtube.com/watch?v=SA1vb0Ua6vg video of first run on my latest project, a Heng Long 1/16 M41A3 Walker Bulldog RC Tank with Dual Mabuchi RS540 Motors. Modular 3D printed tank mounts and worm gear drive housings I designed on TurboCAD. RC ball bearings on worm drive. 3D printed beaing insert on drive axle with 16x8x5 ball bearing for output. Fabricated aluminum motor rail. Run with Sabertooth 2X12, single7.2V battery. Final drive ratio 23.64 to 1. Drop in 3D printed mounts use same stock mounting holes as oringinal gear housing. Had to custom make the spur gear hubs from a shaft coupler and a universal hub on lathe. The drive axles are fabricated from 5/16 grade 5 bolt shank and RC truck axle. Lid fit on the tank, motors are right under the air vents! This turned out so nice, wanted to share this with you. These mounts should fit in any Heng Long tank with any motor. What is really nice is to be able to change gear raitos you can't do with stock gear boxes. Will see how they hold up. Very tight fit but it works, mission accomplised.

Snowplow

 * https://www.open-electronics.org/here-comes-the-open-source-snow-plow-robot/, snowplow youtube open source snow plow. The result is a miniature version of a true snowplow, caterpillar tracks, with blade and light projector mounted on top to light the way in the dark; everything is controlled by a remote control from the PlayStation 2. Let us see how our caterpillar robot is assembled, starting from the mechanics and then describing the electronics and firmware that is necessary.

Snowplow rubbertrack

 * https://www.youtube.com/watch?v=npNRbQCCKgo Snow plow robot RC tracked vehicle ripsaw tank . Robot rubber tracks from robotshop.com tank tracks
 * https://www.youtube.com/watch?v=q3u9fvZ07YE, vid12 RC dozer build. This is a few still shots of the RC dozer that I built. I hope to give you an ideal with your build. All made from simple hand tools.
 * JRP RC - Stainless/Bruder Dozer Build Part 2
 * https://www.youtube.com/watch?v=Yew66nOjJeQ rc Ripsaw final test phase 5

ducks Garage
https://www.youtube.com/watch?v=J9at2aWAwZs making idlers and sprockets. Cuts a precision circle out of 2cm steel over six hours with setup. Sprocket used for tank tracks.
 * https://www.youtube.com/watch?v=rw0BYaksd4U Making dozer tracks, Ford lgt165 conversion.

stratbot
https://www.youtube.com/watch?v=uzfh65MBtvA suspension 58secs.

https://www.youtube.com/watch?v=wUsyMDvPW6U DARPA chassis

Alexander Drozdov
https://www.youtube.com/watch?v=2IOg9Vpp8UM Alexander Drozdov design album pictures of sprockets
 * https://www.youtube.com/watch?v=ut6lqTg7nb4
 * https://www.youtube.com/watch?v=vLMC3F5Dwxs

https://www.youtube.com/watch?v=71JG1kKgrdc

www. Actobotics.com
https://www.youtube.com/watch?v=8rA4IhUnFsQ

www.inspectorbots.com
https://www.youtube.com/watch?v=sGGrLQy3cIA

Artemis rover
https://www.youtube.com/watch?v=H8cxc8wCuWI Eight wheel setup. Four sets of two wheels that pivots, allows climbing over rocks. Driven by four outside electric motors, each driving two wheels.

= steel tracks = https://www.youtube.com/watch?v=4JfcQxwWHJY  How to build steel tracks

https://www.youtube.com/watch?v=xICesaqfiIo 2/5 tiger tank tracks (25mm square tube)

Tankman101
https://www.youtube.com/watch?v=U_2gYZAa10g badger mk1 tracks, make steel wheels with flat bar 150mm hose clamp tack weld by tankman101. Combine this idea with Thai ground robot. Drill 10mm spaced holes around flat bar that has been wrapped over 5mm steel disk. Wrap solid cut piece of scrap tire around this flat bar and countersink holes for M6 bolts.

evatech
http://www.evatech.net/PRODUCTS.php?SELECTION=TREX TREX stands for Terrestrial Robotic Explorer. It uses Evatech's patented and proprietary propulsion technology. TREX is strong, fast, and reliable. Simplicity, combined with strength and intelligence are the key genes for a prevailing species and TREX has inherited them. It did not happen overnight; TREX is the result of 8 years of intellectual evolution and countless hours of experimentation.

http://evatech.net/PATENTS.php Defendant John Wesley Wright and his officers, employees, agents, attorneys and all persons in active concert or participation with them who receive actual notice of the judgment in this case by personal service or otherwise, are PERMANENTLY ENJOINED AND RESTRAINED, during the remaining enforceable life of U.S Patents Numbers 7,318493 and 7,677,344 owned by Plaintiff Evatech, Inc. from practicing without a license (and from causing, hereafter, any other entity to practice without a license) the method of using Plaintiff Evatech, Inc.'s system or any colorable variation thereof that infringes on the above patents. The court retains jurisdiction to enforce the terms of the Judgment and this injunction. In South Africa we use HackPatents. (hopefully enough litigants reads this so they won't bother trying to enforce patents in SA)

Wheelchair mobility
http://www.medibog.hu/hernyotalp/her/her2.htm, https://www.youtube.com/watch?v=EMeVu4EO6YU
 * https://www.youtube.com/watch?v=Qnrcr-rOcuw offroad tracked wheelchair.

Robotnic.eu
http://www.robotshop.com/en/guardian-all-terrain-high-mobility-surveillance-platform.html Four wheel mobility with tank like 360degree pivoting. https://www.youtube.com/watch?v=McJ-59hICbY from http://www.robotnik.eu/

Hexhog
https://www.youtube.com/watch?v=MX7qbOdgHzA, http://www.hexhog.com/ Six wheeled vehicle, prevents dangerous tipping with four wheel vehicles. The HexHog is the ultimate off-road wheelchair offering unprecedented access to extreme terrain. This unique battery powered machine means you have the freedom to go places you wouldn’t have dreamed possible - at the push of a joystick! Five years of testing and development in the harshest of mountain terrains and extreme environments has given rise to this unique off-road wheelchair. The HexHog has been designed to bring together the functional attributes of a powered wheelchair and ATV in one aesthetic package. Wheelchair users or those with limited dexterity can safely access the countryside and back country wilderness with total independence.
 * patented flexible suspension. pivots about centre.

A seat transfer system, which advances and lowers the driving seat to a position for independent transfer from a wheelchair.

Inspectorbots.com
http://inspectorbots.com/_Home.html https://www.youtube.com/watch?v=sGGrLQy3cIA This is a Very Rugged, Tactical Robotic Platform. It is a 4WD unmanned electric vehicle with a Steel Plated Shell and a Teleoperated Pan/Tilt Turret with a 20 Round per Second Non-Lethal Weapon System. The Modified Paintball Gun has a 100 round capacity Interchangeable Magazine. It can fire Pepperballs, Paintballs or Hardened Rubber Rounds. It is perfect for Covert Surveillance, Security, SWAT, Tactical Response, and Law Enforcement

swatbot
Robot arm rotates on platform or lazy Susan bearing, rotated by a chain, sproket and vertical DC motor. http://www.howeandhowe.com/rs1-rbs1-robotic-ballistic-shield.html SWAT-Bot is the world's first mid sized robot designed solely for SWAT/SERT applications. It serves as a robotic ballistic shield, door breacher and vehicle/debris remover when the environment is deemed unsafe. The Robotic Ballistic Shield (RBS1) or “Swat Bot” concept was created in coordination with the Massachusetts State Police. It utilizes the RS1 base platform, a collapsible ballistics shield, and a hardened AR400 steel nose shield to protect those in the line of fire. Standard procedures for approaching a hostile environment means utilizing a shield barely larger than the human torso for protection. The “SWAT Bot” offers the operator and team adequate cover from hailing gunfire and explosive scenarios. http://hdwall.us/wild-animal/cars-drift-ken-block-wrc-monster-energy-subaru-impreza-wrx-car-desktop-hd-wallpaper-331753/ http://www.howeandhowe.com/rs1-g2-guardian.html

mindsi
http://mindsirobotics.com/products-and-accessories patents: US 7,517,270; US 7,410,225; US 7,736,211; US 7,841,923;
 * https://www.google.com/patents/US7517270 See Ss couplings

track n go
http://trucktracks.com/en/ Who would have thought that one day we could install 4 tracks on a vehicle in 15 minutes, while keeping the tires on and without any modifications of this vehicle. Well, after several years of research and development we are proud to present you the Track N Go system: "The first ever wheel driven track system", an innovation that will make it much easier to use tracks on your vehicles. Hack a scaled down version, allowing a 4x4 wheeled robot mobility in wet muddy conditions. patent to hack 8776931 B1 with south african fronting company.

Cayote ugv
https://www.youtube.com/watch?v=C8U-U_zC7sw Six wheeled, no hydraulic suspension, innovative usage of center wheel set.

ripsaw
https://www.youtube.com/watch?v=LNUoQsQb4aw New 1:8 RC Ripsaw tank full metal chassis with HG p601 crawler axles transmission.
 * aliexpress metal tracks used for tank


 * improved version Mato Metal upgraded Tracks, sprockets, idler wheels(with bearings) parts set for Heng Long 3878-1 1/16 1:16 RC Russian KV-1 Tank
 * https://www.thingiverse.com/thing:2266880 files

banggood chassis
https://www.youtube.com/watch?v=-9WLhvXwGhw Tank model out of aluminium parts around $100. Scale design to any size using Solid Edge. banggood.com tank chassis and tracks($100)
 * tank caterpillar chassis. See Thingiverse slew bearing design for turret.

youtube

 * https://www.youtube.com/watch?v=Rh1VXLMoUtk all metal scale model 1/8 German tank
 * https://www.youtube.com/watch?v=8Uh6zCp_pGw rc tracked tank. Front spring pushes back for tension. PLACE PIC

https://www.youtube.com/watch?v=bQl7T6niEzI traxxass shocks on tank chassis 4min irobot

https://www.youtube.com/watch?v=GjVLO3Iy7VE  , https://www.thingiverse.com/thing:991405

NXT robotics
https://www.youtube.com/watch?v=kYdcYU3-obM Six wheel robot. Front and center wheels pivot around common axis at the front. http://www.nxtrobotics.com/

THE mule
https://www.youtube.com/watch?v=HnapbzZDDRI six wheel setup, electric motor in each hub. Lifts front set of wheels up to climb over large obstacle, with center wheels providing pushover thrust. https://www.youtube.com/watch?v=NJeUPuZH2xg four wheel tracked mini robot each set of tracks mounted on a hub motor, allows for climbing over rocks.

Links

 * http://www.robotnik.eu/mobile-robots/summit-xl-steel/

https://www.youtube.com/watch?v=S_mi5cxh2cs double bogie wheels

http://www.offroadfabnet.com/forums/showthread.php?t=11315

http://www.spidercarts.com/downloads/scorpion-three-wheeled-go-kart-plans/


 * RoboLawnMower, Racing suspension
 * RoboTics tracked robot using GPU
 * https://www.youtube.com/watch?v=NJeUPuZH2xg from http://www.asirobots.com
 * https://www.youtube.com/watch?v=tfErX-aYqOo homemade tank update 15 videos.
 * https://www.youtube.com/watch?v=pabPG6dFpVg DIY RC DOZER LOADER TRACKS, MOTORS AND SPROCKETS MODEL
 * http://www.mitosal.com/
 * http://www.dtvtank.com/product/dtv-shredder/ ptv (personal tracked vehicle)
 * https://grabcad.com/library/my-chain-1
 * https://grabcad.com/library/crawler-track-system-02
 * ebay RC shock absorbers