August 25, 2018
Description
1/16th RC Russian T-35A
L:607mm W:200mm H:214mm
Imgur Gallery:
UPDATE 01/21/19:
Thanks to Krasi50 for his custom transmission files, I will add them as a download here for anyone who wants to 3d print the drivetrain as well.
Check out his model in the makes section!
UPDATE 09/05/18:
Added missing Transmission Cover files and other file fixes, please re download!
This tank represents my first serious attempt at a 3d printed project. In my opinion the T-35 is unique enough to deserve to be scratch built. Consisting mostly of rectangles and cylinders I figured it would be a good starting point, I was incorrect, but nevertheless it is completed!
The base meshes I used are from War Thunder, which I blame for giving me an eye for this tank. The Meshes had adequate detail to give me a good idea about what even some of the smaller details looked like. The remaining features were the result of browsing what pictures and other builds I could find online.
The model has the following features:
• Fully working suspension
• 1 turret with RC 360 rotation, elevation and barrel recoil
• 2 turrets with RC rotation and manual elevation
• 2 turrets with manual rotation
• Working headlights and tail markers
• Working cooling fan
• Smoke machine for exhaust
• Realistic sounds
• Accurate (mostly) scale details and tools
The functions are achieved using the OpenPanzer TCB which I would highly recommend for its versatility and customization options, I struggle to think of another way I could control 3 turrets as easily as I did.
Motion is provided by a set of modified Heng Long KV gearboxes, Standard ones are too low torque and will stall when attempting to turn due to the ludicrous track contact length. I would recommend using a good low ratio gear set for this. Provided are motor mount sleds for the HL boxes.
Other electronics include 2 standard servos for the secondary turrets, one more modified for continuous rotation and 2 micro servos for elevation and recoil.
I control the model using an 8ch transmitter.
Notice to potential Makers:
This model, as mentioned, is a first attempt! It is possible to build but needs lots of sanding and fitting to get everything running smoothly. Do not expect this to fly together quickly. If anyone is actually crazy enough to attempt this I will be happy to provide guidance as they go, but the steps and BOM were not documented so I am unable to provide them.
Printing:
All parts of the tank were printed using ABS, on medium to high settings at 20-40% infill (based on the structural demands of each part) using a MakerGear M2. As a result some of the largest parts will not fit on smaller printers.
Hardware
The model is assembled using 3mm steel rod, 4mm brass tube for wheel bearing surfaces, flat spring steel for suspension, dressmakers pins for track pins, various M3 socket head screws, M3 nuts, M3x10mm brass threaded inserts, quantities unknown (sorry) and lots of acetone for bonding parts together. The clothesline antenna and its support bars are formed from 1.75mm filament. Side skirts are secured using pieces of spring steel as hooks, hull lids are secured using screws and rare earth magnets.
In Closing
I enjoyed stumbling my way through modeling and building every aspect of this and have learned much along the way. I’m posting this in hopes that someone else looking to make one has at least some material to work with.
License:
Creative Commons - Attribution
Dean_Rauch
