Anet A6 Motor Bracket and Frame Stabilizer

thingiverse

I'm printing and designing several parts to improve the stability of my ANET A6 frame by increasing its stiffness. Recently, I noticed that the main frame was bending at the motor mount corners, causing a small deviation in the X axis. This bending is directly related to the tension of the X belt (necessary for good prints), which is transmitted through the linear guide and finally to the frame. When the Z position is far away from zero, this bending is mainly absorbed by the linear rod as it slightly bends itself, but when the Z is near to zero or maximum position, the linear guide cannot bend due to its short distance, and therefore, it bends the frame at its weakest points, which are the corners of the central frame. These brackets secure both motor mounts and main frame to a platform, eliminating bending and improving printing quality at lower layers (where bending was more noticeable). Additionally, they serve as dust covers for motors and look great (at least to me). These parts have been designed to slide from the side of the printer because in my case, it requires considerable work to disassemble the other brackets I have. You only need to remove three motor screws, the linear guide, and the rear screw that fixes the motor mount to the main frame. After that, you can slide this part and attach everything again (nut positions have been hollowed out to prevent any misalignment). Obviously, you'll need to secure the bracket to a platform using M4 countersunk screws for it to make sense. The screws I used to fix everything are: * Motor screws: M3x15 mm * Rear frame screw: M3x25mm * Motor mount screw (which secures the upper plate of the motor and the foot): M3x20 mm I've included a center cutout to allow access to the coupler's screws. I highly recommend anchoring the printer in several parts, as it produces better prints. Moreover, you can print two handles that will enable easy transport or movement for maintenance or upgrades. I printed this support along with the following parts to achieve a more rigid configuration: * https://www.thingiverse.com/thing:1896013 * https://www.thingiverse.com/thing:2501888 I printed it using the following parameters, consuming 52 grams: * Layer height: 0.25mm * No supports if printing as seen in images. * Infill: Cubic subdivision and 30% * 3 walls * PLA (PETG would be better) * Horizontal expansion: -0.1 mm (this is for my printer, which has a measured deviation; adjust according to calibration) Feel free to comment with any doubts or suggestions you might have. I hope you enjoy this!