JG Aurora A3 x belt tensioner
thingiverse
X Axis Belt Tensioner for JG Aurora A3 Printer. Mounts on right-hand side of printer as depicted in picture. Fits flawlessly, performs equally well. Allows you to tighten X-axis belt, potentially over-tighten. To install correctly, attach parts with thicker side facing right; otherwise, misalignment will be apparent. Requires your own M3 screws and nuts; 2*20mm should suffice. The most challenging aspect when using JG Aurora A3 is that existing parts, such as bearings, cannot be accessed without disassembling entire X-axis due to minimal clearance. Edit: Modified design now includes an aligner preventing idler movement towards one side and causing belt abrasion against X-axis.
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