Fire truck, two styles: no AMS - 3 colors, monochromatic simplified version (no hardware)

This is a fire truck that requires no hardware, its wheels and axles use 3rd generation optimized printed springs, and it has multiple Articulated parts. The non-AMS 3-color version has more details and Articulated parts, making it relatively more difficult to assemble and weaker in strength. The front doors are universal with the previous two models!! The monochrome streamlined version has no doors or interior, prints faster, and has a slightly different appearance!! (Small size non-extended LxWxH approx: 101.3*45.6*43.3mm)

Precautions:

1. Before printing, please ensure your filament can print 11.4mm overhangs (Large size is 17.1mm, mine has no supports and no significant sagging), otherwise the car doors might not close properly!! Or be prepared to manually correct it yourself..!!

2. The two green circles in the image below are the equipment storage plates, the small size overhangs about 18mm, and the large size overhangs about 27mm and will bend noticeably. Those who mind should print with caution, or add supports yourself, but they are difficult to remove!!

3. The small slot of the equipment compartment door is relatively small (The groove below the green circle in the image above is 8mm wide), requires a fingernail to open~!!

4. Some parts of the small size are relatively fragile and easy to break (the thinnest part is only 4 walls)!! Do not press the pin crooked, otherwise it is highly likely to break, apply some force during installation!!

The GIF below is the assembly diagram for the monochrome streamlined version:

1. The 4 red parts are more difficult to install

2. The connecting pin between arm 1 and arm 2, if the strength is insufficient, a cut piece of 1.75mm filament can be used as a substitute pin. If it breaks, please use a 1.5 hex screwdriver to push it out!! (Bambu Lab toolkit small screwdriver)

3. The 2 water guns are difficult to install due to their small size and difficulty in applying force. My personal method is to press inward with force while screwing it in!!

4. The two supports of the arm should be installed into the hole groove on one side first, then the other side, to avoid breaking!!

5. Tilt the wheel and place it on one side of the axle buckle, then press the red circle with your thumb, and apply force to the side of the wheel with your index finger to press it in (using the principle of leverage). The installation method for the wheel on the other side is the same (see the GIF)!!

The GIF below is the assembly diagram for the non-AMS 3-color version:

1. For some installation methods, refer to the streamlined version's installation description!!

2. The front and rear lights might be more difficult to install, especially if pressed crooked!!

3. The car doors have front and back, and distinguishing sides

4. Do not install the car door pins in the wrong direction. Note: align the holes, install carefully, do not press crooked, otherwise it is highly likely to break!!

The green parts in the image below are the supports to be removed, easy to remove!! The streamlined version's body has no supports!!

Note: 1. Both PLA and PETG can be printed. It's best to understand the characteristics of these two materials before printing to avoid printing failures!! For example, PLA can become brittle if left for a long time or at low temperatures, while PETG has good toughness. Please choose the filament that suits you!!

        2. If it's for younger children, and the parts are small and easy to disassemble, it's better to glue them firmly with 502 or other adhesives to prevent them from being swallowed!!

        3. If there are no special requirements, please do not use your own advanced process settings for printing~ to avoid printing failures!!

If your printd part has local spaghetti, or the filament doesn't stick to the build plate, please recall if you touched that area (hands secrete sweat and oil, touching it has a very high chance of causing spaghetti)  or if the build plate is dirty. The solution is to search online for how to clean a 3D print plate!! If other problems occur, please describe it in the comments section and add pictures, so it's easier for us to solve it~  Otherwise, I can't imagine the situation = =!!