Customizable Flush Mount Quick Change Platen Brackets

thingiverse

Occasionally my nozzle or fan duct crashes into one of the binder clips securing down my platen. These customizable flush mount brackets keep the platen down while staying out of the way. They're much quicker to install and remove than standard mounts; two eccentric retainers just need to be rotated out of the way allowing the platen to lift out easily. While customizing, you may preview each individual part using the "Part" dropdown menu available in all tabs. To see a zoomed-in view of an individual part go to the [Build Plate] tab and set the "Show Build Plate" dropdown to "No". You can also adjust the display of the build plate according to your own printer platform. Set "bed_y_mount_height" equal to the nominal center-to-center distance of the bed mounting holes in the y-axis. The default of 209mm works for the MK2 (http://reprap.org/wiki/PCB_Heatbed). Measure the thickness of your build platen and set "platen_thick" equal to this value. The default value of 2.4mm works for a 3/32" plate. The brackets are naturally larger than your platen so they need to be oriented diagonally when printing to fit. To assemble, place the long edges of the brackets parallel to the Y-axis and arrange the short edges (the stops) kitty-corner each other. Put an eccentric retainer over each mount slot and attach it to the bed as usual. Use button cap screws to minimize Z protrusion. If the plastic eccentrics are too flimsy to secure your platen, try printing them thicker by adjusting the "eccentric_thick" value. Alternatively, reinforcing the eccentrics with fender washers works well. If any corners are still not securely held in place, just add several layers of tape to that corner. The brackets should be snug against the platen on all four sides. The eccentric retainers will keep the platen down. To quickly remove the platen, turn the front two eccentrics to release it then lift up and slide it out. Print Settings Rafts: It doesn't matter Supports: It doesn't matter