QIDI X-one Glass Bed

thingiverse

These hold downs slide into place at will, allowing for easy movement around the machine. The extruder and fan duct remain clear throughout the Homing Cycle, Level Cycle, and Start Cycle. With just 1/16th of an inch clearance, the plastic fan duct requires a bit of extra attention - consider filing or sanding just the tip of the Swing Arm Top to add more room for maneuvering. If you opt for a custom duct, be sure to test for clearance beforehand. Revisions have been made to the Slide Brace part to provide more room to work with. As the PLA Slide Brace "breaks-in" and bends or warps, it still functions perfectly fine but does require a slight adjustment. I'd love to hear from you if you've printed this design - which material worked best for you? PLA works well but ABS may be an even better choice. Possible issues arise when using the heatbed with PLA, causing the Slide Brace Part to become soft and bend too much. To combat this, I use a 0.19 inch thick cork sheet on the bottom of my bed for insulation - it blocks the heat perfectly. However, ABS filament may be a more suitable choice for the Slide Brace Part. I was too lazy to remove the cork just to test it out, but I'd love to hear your results. It's essential to note that these Hold Downs require a binding action to work correctly. The CAD drawings show all parts in perfect vertical alignment, but the reality is that the Slide Base bolt hole is designed to be oversized, allowing the Swing Arm to tilt back and create the necessary binding action. See the photo for further clarification. To set the clamp, simply push up from the bottom and swing the arm into position. Press down on the tip of the Swing Arm onto the glass and tighten the top adjustment wheel to a light pressure position - then lock it in place by tightening the bottom wheel. Be careful not to over-tighten, as this can cause the Slide Brace to bend. A period of break-in is required because the PLA Slide Base part will initially bend at the 90-degree point but eventually stabilize. I don't use a shim to compensate for the extra height of my .125" glass thickness, but another user suggested simply tightening the bed all the way down and then doing a new Level sequence - it worked perfectly for me. To release the clamp, simply turn the Swing Arm off to the side. As the PLA settles, it will become bent under the bed, requiring readjustment of the clamps. I've included both STEP and STL files for your convenience. If you decide to purchase glass, I recommend checking out go3dprint on eBay - they offer high-quality products with excellent service after the sale.