Dual-Flow Gearbox Tracked Vehicle Chassis (Proof of Concept)
Print Profile(2)
Description
Introduction
A tracked vehicle chassis featuring a dual-flow gearbox. As this is a first, inexperienced version primarily intended for structural verification, several aspects exhibit rough construction and imperfect design. Please carefully review the description before considering printing.
- Weight: The complete vehicle weighs 4kg. 10kg can initiate movement, but prolonged operation and heavy loads will cause significant motor overheating.
- Modular Design: The dual-flow gearbox and chassis are independently designed for convenient upgrades and modifications.
- Gearbox: Utilizing climbing car motors and ESCs, the dual-flow gearbox includes an integrated gearbox (for both power and steering). The gear ratio is 11.2:1.
- 3D Printed Gears: Made of PETG material with a 0.9 module, currently performing well in testing.
- Adjustable Suspension: Spring tension is fine-tunable for testing purposes.
- Adjustable Tension: Spring tension is fine-tunable for testing purposes.
- Track Adhesion: Tracks utilize adhesive backing for enhanced grip.
Tension Adjustment Hole Suspension Adjustment Hole
Since the 3650 climbing car motor is not designed for tanks, prolonged operation results in overheating.
The power gearbox has an excessively high gear ratio, leading to low speed (approximately walking pace). While this enhances load capacity, the motor remains unsuitable and overheats.
Due to motor incompatibility, the climbing car motor cannot reverse quickly; braking is required before reversing, similarly for left and right turns.
This model serves to verify chassis capabilities. While the model includes provisions for a top cover, no further development or addition of head structures is anticipated (a separate head model will be created for testing purposes).
Additionally, I would like to inquire: What motors and control modules do fellow tank enthusiasts typically use? As a novice tank builder, I am unfamiliar with this aspect.
Printing
The chassis and dual-flow gearbox are provided as separate print files. If you only wish to print and use the dual-flow gearbox, consider my other model.
Slight variations exist between the left and right structures. Pay close attention during printing.
The print files are pre-sorted by plate for ease of installation. Due to the high similarity of parts, please avoid mixing plates.
The track plates need to be replicated independently; 56-58 sections are recommended.
Assembly
Given the model’s large size, I only printed one set. Disassembly and reassembly would be excessively time-consuming, so I have opted not to record a video, providing only key assembly diagrams instead. Please leave a message if you encounter any assembly problems.
Accessories
Name | Model | Quantity | Notes |
Self-Tapping Screw M3 | M3*6 | - | Nut height 1mm, diameter 6mm, flat head, flat tail, countersunk head (Too many to count) |
Self-Tapping Screw M3 | M3*8 | - | Nut height 1mm, diameter 6mm, flat head, flat tail, countersunk head (8mm used where 6mm is insufficient) |
Embedded Nut | M4*5*5 | 12 | For tensioner and idler wheel adjustment holes |
Set Screw | M4*8 | 10 | For idler wheel adjustment |
Screw | M4*16 | 2 | Nut height 1.2mm, diameter 8mm For tensioner wheel adjustment |
Spring | 1.0*16*50 | - | Tensioner wheel spring, trim length as needed. |
Spring | 0.6*8*50 | - | Idler wheel spring, trim length as needed. (0.58 or 0.7 wire diameter may also be considered) |
Bearing | 6*10*3 | 6 | |
Bearing | 10*19*5 | 42 | |
Smooth Shaft | 2*50mm | 120 | |
Rubber Pad | 500*500*3mm | 1 | Track adhesive, purchase a full sheet and cut to size |
Motor | 3650 | - | |
ESC | 60A | - | |
Battery | 2S | - | |
Control System | - | - |
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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