Video can be found here: https://youtu.be/6qJWLcehhgU
STL and Editable Fusion 360 source files can be found here: https://bbprojects.technology/collections/stl-fusion-360-source-files/products/rc-fpv-tank-rover-files
One of things that differs this tank from others are the treads wich snap together and don't need any additional shafts to keep them together
The small section in the body, right behind the eye was prone to breaking in the V1 version of the body, This should be fixed in the V2 version of the body.
I designed the tank in a way that it can be almost completely 3D-printed. It's of course inevitable to truely completely 3D print the tank so there are small additional parts needed like bearings, shafts, screws, bolts and nuts. The tracks however are completely 3D-printed and don't need little shafts between every link. They are designed to snap together and stay together. It's very hard to take them apart after they snapped together, which is of course the intention.
I initially used 2 12V 1000 RPM motors but they turned out to be to weak so I ordered some new motors which were the same size but instead of 1000 RPM they are now 100 RPM. If I wanted to put bigger motors in it, I had to completely redesign the tank which would take up to much time as I already 3D-printed all the parts.
The 2 motors are currently being driven by one L298N motor driver which is controlled by an arduino nano V3. The arduino reads the data from 2 channels on the spektrum receiver. I might replace the arduino and motor driver by 2 car esc's but it's also possible I keep the arduino so I can connect some sensors to it so I can make the tank perform tasks autonomously.
In front of the tank is a camera which is placed inside an "eye" so the driver can look up and down. The up and down movement of the "eye" is obtained by a standard 9g servo. The video feed gets transmitted through a 600mW 5.8gHz transmitter and gets send to some FPV goggles.
The hatch on top of the tank gets hold on by 2 neodymium magnets (1 in the body, 1 in the hatch).
Video can be found here: https://youtu.be/6qJWLcehhgU
More info can be found here: https://hackaday.io/project/164896-rc-fpv-tank-rover
Components used:
1 × Arduino nano
link: https://www.banggood.com/Geekcreit-ATmega328P-Nano-V3-Module-Improved-Version-With-USB-Cable-Development-Board-For-Arduino-p-933647.html?p=E01411629100201406T1&custlinkid=255135
1 × L298N motor driver
link: https://www.banggood.com/Wholesale-Dual-H-Bridge-DC-Stepper-Motor-Drive-Controller-Board-Module-Arduino-L298N-p-42826.html?p=E01411629100201406T1&custlinkid=255131
1 × RC receiver
link: https://www.banggood.com/2_4G-6CH-S603-Receiver-Supported-JR-Spektrun-DSM-X-DSM2-Transmitter-p-961733.html?rmmds=search&cur_warehouse=CN
1 × 9g servo motor
link: https://www.banggood.com/TowerPro-SG90-Mini-Gear-Micro-Servo-9g-For-RC-Airplane-Helicopter-p-1009914.html?p=E01411629100201406T1&custlinkid=359550
1 × FPV camera
link: https://www.banggood.com/JJA-CM1200-13-CMOS-1200TVL-Mini-FPV-Camera-2_1mm-Lens-169-PALNTSC-BlackRed-For-RC-Drone-p-1259982.html?p=E01411629100201406T1&custlinkid=669118
1 × Heat shrinks
link: https://www.banggood.com/328pcs-Heat-Shrink-Tubing-Insulation-Electrical-Shrinkable-Tube-Sleeve-Cable-21-p-1362019.html?p=E01411629100201406T1&custlinkid=669227
2 × Neodymium magnets
link: https://www.banggood.com/8pcs-N52-20x10x5mm-Neodymium-Block-Magnets-Rare-Earth-Magnets-p-977519.html?rmmds=search&cur_warehouse=CN
4 × 5mm bearings
link: https://www.banggood.com/10pcs-685ZZ-5x11x5mm-Ball-Bearings-Miniature-Bearings-p-1148729.html?rmmds=myorder&cur_warehouse=CN
2 × 12V 100RPM geared motors
link: https://www.banggood.com/DC12V-100RPM-Mini-Metal-Gear-Motor-Electric-Gear-Box-Motor-p-1010697.html?rmmds=search&cur_warehouse=CN
6 × M5 nuts
2 × M5 treaded rod about 50mm long
42 × 4.5 X 40 mm wood screws
I used about 42 4.5X40 mm screws and cut them to lenght when necessary.
Recommended Tools:
3D-printer: https://www.banggood.com/Creality-3D-Ender-3-Pro-V-slot-Prusa-I3-DIY-3D-Printer-Kit-p-1346320.html?p=E01411629100201406T1&custlinkid=677427
Paypal: https://paypal.me/BrockenBrian
Feel free to take a look at my other designs:
3D printable antweight battlebot: Bulldog: https://www.thingiverse.com/thing:4623536
SpaceX inspired edf rocket: https://www.thingiverse.com/thing:4606751
3D printed high torque servo/gearbox version 2: https://www.thingiverse.com/thing:4547703
UMC - Universal motion controller: https://www.thingiverse.com/thing:4245315
3D-printable Davinci catapult gift card: https://www.thingiverse.com/thing:4067668
Arduino controlled photogrammetry 3D-scanner: https://www.thingiverse.com/thing:3958326
Fully 3D-printable turntable: https://www.thingiverse.com/thing:3723618
RC FPV tank rover: https://www.thingiverse.com/thing:3587738
Fully 3D-printable wind-up car gift card: https://www.thingiverse.com/thing:3308710
3D-printable High torque servo/gear reduction: https://www.thingiverse.com/thing:3292860
'BOOM box' high voltage capacitor bank case: https://www.thingiverse.com/thing:2980012
Subby the interactive youtube subscriber robot: https://www.thingiverse.com/thing:2928254
robot hand || bionic hand prosthesis prototype: https://www.thingiverse.com/thing:2838239
3D-printable linear actuator: https://www.thingiverse.com/thing:2783959
Mini 3D-printable crossbow: https://www.thingiverse.com/thing:2710472
8 legged spider robot: https://www.thingiverse.com/thing:2470882
best 3D-printable bearing: https://www.thingiverse.com/thing:2349065
Have a nice day!
License:
Creative Commons - Attribution - Non-Commercial - No Derivatives