FlashForge/PowerSpec glass-bed z-axis shim

thingiverse

The Flashforge Creator X, along with its re-badged version PowerSpec 3D X, arrives on your doorstep equipped with an aluminum bed, a detail that sets some users' hearts aflame for the option of replacing it with a removable glass bed - easier to clean and set up by far. Those who have both the 1/8" and 1/4" thickness options under their belts already know the benefits. You're in for a bit of a problem, though: Using a glass bed alters the limit switch engagement threshold such that you can easily watch as it attempts to "punch through" anything from a quarter inch to more - simply because the extruder hasn't learned when it's reached its own height. You're going to need some sort of shim here. Manufacturers have taken notice and produced all sorts of devices: little blocks designed to slot neatly into openings in the bed supports or moving parts that slide alongside to reposition them a safe distance - no fuss at all. A simple shim designed for precise positioning seemed more appealing than these cumbersome alternatives, something easily popped into place, easy to install and effortless to take out once it's done its job. In reality, I wasn't sure what the hell I was doing here since this thing's actually in openScad. No doubt I must improve over time; so here is how I approached making the necessary components. My logic suggested using something similar to a bracket, designed with flexibility so you could mount it without any problems during dismounting. All the pressure goes on to holding onto those 3mm thick glass layers from FlashForge that fit so well in your prints, providing the little room that might otherwise cause stress. As said before though I just happened upon .scad. My printer requires pretty specific leveling conditions and for the most part I'd find a certain amount of play wasn't even noticeable, thanks to zero force pressing onto it due entirely by reason to having installed an extension cross-bar that stretches straight down into one end where this limit switch sits at the very back - you could use the term "extension bar".