Ender-3 print bed clip / strip

thingiverse

My stab at creating a clip/strip to hold down the stock print bed vinyl/plastic sheet and help eliminate any warping that has happened to it is well underway. It should fit the Creality Ender 3 print bed perfectly (235x235 mm). Still a work in progress, I've encountered some issues with the edges being of different depths. My idea is for the deepest edge to go under the print bed, reducing the risk of crashing into this part when using it. Be aware that there may be damage if your printer runs into the strip and something has to give. Obviously, it should be printed in a material that can withstand the heat from the bed when you're printing later on. For example, ABS may work well to print PLA (and maybe even ABS itself?). There are three different lengths here: front along X, back along X, right along Y, and left along Y. My plan is to use them in this way: * Front along X: 225 mm to leave room for the print head to enter at Z = 0 on the left side. * Back along X: 205 mm to leave room for the connection to the print bed on the left side. * Right along Y: 235 mm, full. * Left along Y: 225 mm to leave room for the print head to enter at Z = 0 on the left side. I've attached the OpenSCAD file. It's a bit messy from trial and error mode, but all dimensions should be quite easy to tweak. Attached gcode holders_abs.gcode sets up for ABS printing with the bed at 120C and the nozzle at 245C. It has a five-loop brim (does not touch the model which I wanted) and all four pieces mentioned above. Improvements that might be done: * It's possibly a bit too tight now, but at least it won't fall off. * Make an attack angle on the deepest edge (meant to go under the bed), so it can be snapped on easier by putting the upper part on and then forcing the lower part. You may want to check out @RubeRad's remix here: https://www.thingiverse.com/thing:331710 (labels for raise/lower, refined lip depth and groove depth).