Fully Printed 1:28 RC Car Chassis (MINI-Z compatible)

prusaprinters

<h3>For the most up-to-date parts, visit the <a href="https://github.com/alexyu132/zcar">GitHub project page</a>.</h3> <h3>Video: <a href="https://www.youtube.com/watch?v=_t0HLC2bZMU">https://www.youtube.com/watch?v=_t0HLC2bZMU</a></h3> <h3>This is a 1/28 scale RC chassis designed to be compatible with Kyosho MINI-Z body shells. Current version fits 90mm (M) wheelbase shells.</h3> <h3>Update 8/26/20: I've released a 4WD chassis, available <a href="https://www.thingiverse.com/thing:4579896">here</a>. The 4WD version is optimized for drifting, while this one is better for grip racing and is cheaper to build.</h3> <h3>Features:</h3> <ul> <li>Independent front suspension and hinged rear suspension</li> <li>Ackermann steering geometry with 45 degree max steering angle</li> <li>Uses common and cheap parts (625 bearings, M3 hardware)</li> <li>Low part count and variety - only 3 different screw lengths needed; locknuts everywhere</li> </ul> <h3>Parts List</h3> <p>| Part | Quantity | Notes | | --- | --- | --- | | M3x20mm button head screw | 7 | | | M3x14mm button head screw | 2 | | | M3x10mm button head screw | 8 | | | M3 lock nut | 17 | | | 625 bearing | 4 | | | 130 size brushed motor, 2s compatible | 1 | | | SG90 micro servo | 1 | | | Compression spring, ~4mm OD, ~6mm length | 2 | For front suspension. Softer springs are better. Retractable pen springs cut to ~6mm can work, but are a bit stiff. | | Compression spring, ~4mm OD, ~20mm length | 2 | For rear suspension. Uncut retractable pen springs work for this. | | Venom Fly 300mah 2s battery (JST connector) | 1 | Batteries up to 45x23x16mm should fit | | Small brushed ESC, 2S compatible | 1 | | Small radio receiver | 1 | 2 channels or more, smaller than approx 34x22x13mm. Flysky GR3E works if decased. |</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>FuseBox2R</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div> <p><strong>Supports:</strong></p> <p>No</p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.1-0.15mm</p></div> <p><strong>Infill:</strong></p> <p>25-30%</p> <p><br/> <p class="detail-setting notes"><strong>Notes: </strong></p> </p><div><p>Print tray1.stl at 0.15mm and tray2.stl at 0.1mm layer heights. Make sure your printer has good layer adhesion, as some parts have a small bed contact area and can warp or detach easily.</p> Support should not be used for any of the parts. The front wheels have a cylindrical piece of built-in support on the inside of the wheel. To remove, use pliers to grip the support and pull straight out without twisting. <p>For more powerful motors, it may be necessary to print the motor mount and motor pinion in ABS or PETG.</p> </div></p></p> Category: R/C Vehicles