Summary I hated how my Tronxy X3S functioned. The parts were sub-standard in the kit and nothing fit quite right. After trying multiple different mods to fix the gantry and the x-axis, I began working on my own setup based on multiple different machines I've looked at. This is a work in progress and more parts will be added as I get this thing worked out. Here is what I have started with. -Hardware- 4 - http://www.makerfarm.com/index.php/hardware/eccentric-spacer.html 4 - http://www.makerfarm.com/index.php/hardware/1-4-inch-aluminum-spacers.html 8 - M5 x 30mm - https://www.amazon.com/uxcell-M5x30mm-Alloy-Button-Socket/dp/B01AXUQSV6/ref=sr_1_4?ie=UTF8&qid=1514919069&sr=8-4&keywords=m5+x+30mm 8 - M5 Nylock Nut - https://www.amazon.com/M5x0-8mm-Plated-Nylock-Insert-100pcs/dp/B017NBZSCS/ref=sr_1_4?s=hi&ie=UTF8&qid=1514919141&sr=1-4&keywords=m5+lock+nuts 4 - M5 Washer - https://www.amazon.com/uxcell-100Pcs-Stainless-Metric-Washer/dp/B015A39UDY/ref=sr_1_4?s=hi&ie=UTF8&qid=1514919172&sr=1-4&keywords=m5+washer 6 - M5 x 10mm - https://www.amazon.com/uxcell-Alloy-Socket-Button-Screws/dp/B019ETJP8A/ref=sr_1_5?s=hi&ie=UTF8&qid=1514919305&sr=1-5&keywords=m5+x+10mm