Tevo Y-Carriage (I-Beam Style)

thingiverse

Description ========== This is another Y-Carriage for the Tevo Tarantula, designed to replace both acrylic parts of the Y-Carriage. The part works well with either stock roller hardware or a MGN12H Linear Rail for the y-Axis. This Y Carriage is part of my Heat Bed Assembly: - Precision Thumb Wheel: https://www.thingiverse.com/thing:2782455 - Flexible Corner Clips for Glass Plate: https://www.thingiverse.com/thing:2842383 Functional Design ========== The carriage removes stress points found in other designs, which often occur at the point of attachment (corners of the mounting plate). It uses an I-beam concept to provide maximum stiffness along each arm while reducing overall weight close to the original acrylic part. This design achieved greater stiffness than a 4mm Aluminum Plate and reduced weight as much as convenient. Printed Parts ------------------ 1x Lower Plate 2x Top Plate (or) Top Plate_NoSupp Non-Printed Parts ------------------------ 8x M3x15 Bolts 8x M3 Nuts All original Y hardware for rollers/linear rail Optional - 8x M3 Washers Supports/No Supports ------------------------------- The original design included fillets that created drastic overhangs resulting in significant stringing. However, it was not unusable, as shown in the pictures is the original design. To reduce potential problems or post-processing requirements, I have switched to chamfers with an angle less than 45deg for all models. The top plate has been redesigned without embedded holes for screws/bolt, removing required support material and making it cleaner. There's ample room for screw heads to show above. However, a design issue remains unresolved. To maintain the original print profile without increasing the height of the print surface, a small section at the tips of the top plate must be printed with supports. I've included both files: one with supports and another without, which requires a 5mm increase in build plate height.