1:16 Truck/Crawler 4x4 RC Chassis

This model is heavily inspired from the WPL c14/c24 and the MN78 1:12 and 1:16 models. All parts were designed from the ground up with 3d printing in mind.

Features:

• 190mm wheelbase
• full time 4x4
• no printed gears
• multiple motor options
• infinite suspension heights / dampening rates
• compatibility with some WPL parts and some MN accessories

Compatible RC Bodies

• 1:16 80's Dodge RAM
• 1:16 Toyota Tacoma

Required Hardware

• 47x M2.3x6mm coarse-thread washer-head screws.
• 20x M2x5mm countersunk screws or ideally flat-head screws.
• 16x M2x16mm screws.
• 4x ~26mm long, 4mm OD, 0.4mm comp springs. (0.5mm is too stiff. 0.3mm is very soft). I buy these longer than needed and cut them to length.
• 4x M3x30mm shoulder screw, 4~8mm of thread recommended.

Required RC products

• WPL 180 motor or MN 260 motor (MN 260 needs a plug swap for JST. There are other motors but I've only tested these two).
• WPL metal axle (both front+rear kits).
• 17g digital servo (17g or 21g servos in size).
• ESC
• RC Receiver (or any other receiver compatible with your transmitter).
• 2s battery (JST plug).
• WPL tires + 3D printed wheels or MN/WPL wheels & tires.

Optional/Alternative Compatible RC products

Note: These products are not required, but are compatible with this model.

• WPL metal beams
• WPL metal axles + housing

Print Settings

The easiest way to print this project is by using the provided plates / .3mf files. They have the proper print settings applied to each individual objects. You might need to change your printer, if so make sure to transfer the settings over when you do so. Optionally split the larger plates into smaller ones.

General Print Settings for all the .stl files

• 0.15mm layer height
• 4 perimeters, 30% infill
• PLA or PETG (tested both but axle-truss_x2.stl may be too fragile in PLA)
• All files should be printed in the orientation they come with

Note:

• Make sure you have excellent bed adhesion and that your printer is tuned correctly.
• If you're having trouble with female driveshafts, try printing them one at a time.

What to print?

1. Print all the parts in plate_frame.3mf and plate_parts.3mf OR print all the parts in the base_stl folder. At the end of the filename is the amount of that part that needs to be printed.
2. Print either plate_wpl180_drivetrain.3mf/wpl180_drivetrain_stl or plate_mn260_drivetrain.3mf/mn260_drivetrain_stl depending on the motor you have.
3. Optionally print plate_opt.3mf or the content of optional_stl if you don't have a body yet.

Assembly

This video covers assembling the chassis.