This is my design of a fully functional, print-in-place hinge – especially created for the FFF process using PETG or ASA material. It is a low-strength design with the series number 150, suitable for lightweight doors, chest lids, and decorative purposes.
Dimensions and Tolerances
The part number for all hinges has the following format:
LR2204-150-T<tolerance>-<length>.3mf
Tolerances
Tolerance is a number between T10 and T90, indicating adjustments from the “ideal” tolerances of the model. The number T50 is always the midpoint, representing zero adjustments. Higher numbers indicate a looser fit, while lower numbers indicate tighter fits. Each step adjusts the tolerances by 0.01mm. Different tolerances will also change the center distance!
Recommended Screw Sizes
The hinge is designed for 3mm or 3.5mm wood screws with flat or round heads. A flat head with a diameter of 5-7mm is required to fasten the hinge correctly.
Hinge Length
The hinge length in the part number is the desired length of the hinge. The actual hinge is always equal to or shorter than this value. For example, if you have space for an 80mm hinge, the LR2204-150-T50-080 model will fit, but it may be up to 3mm shorter than this length.
Center Distance / Closed Height
This hinge works well for furniture doors and lids. The rotation axis center is in the exact middle of the hinge at the specified “center distance.” In its closed shape, the hinge has exactly twice the height of the center distance.
To attach the hinge: Create a cavity, about 0.5-1mm less deep than the center distance and about 20-21mm width, as long as the length of the hinge. Mirror the same cavity on the door. Alternatively, make the cavity less deep than the whole height of the hinge and add a matching radius to the side of the furniture.
