![]() The prints pop off the glass plate very easily-perhaps too easily. Here are the clips in place, holding down the glass plate after reprinting Make‘s dimensional test. The harder parts were getting the pin diameter and distance from the glass plate right, leaving room on the bottom for the alignment pin, and making the clip under the plate thin enough not to interfere with the button movement for the automatic bed leveling. Some parts of the design were simple, like getting the 120mm diameter circular arc and the 2mm wide lip to hold down the glass plate. At 2¢/g, the clips cost under 20¢ for materials, even with the 6 failed designs, but I spent a lot of time on the design and a fair amount on the printing (each print run takes about 15–20 minutes, so there were about 3–4 hours of printing involved). The V7 clip supposedly uses 70cm of filament, which at 1.24 g/cm 3 or 3g/m for 1.75mm diameter PLA is about 2.1g of PLA per clip. I designed the clips with OpenSCAD and sliced them with Cura, using 0.1mm/layer, 3 layers for the walls, and 4 layers top and bottom (I think-Cura does not save any of this metadata in the gcode file except the layer height). I power-cycled the 3d printer and confirmed that the settings had been saved with “m503 ”. To make the change, I gave the “m503 ” command to get the current settings, then “m92 x116 y116 z116 ” to rescale the steps, and finally “m500 ” to save the settings in non-volatile storage. The test object was printing a little smaller than it should, so I scaled the steps/mm calibration from the 113 steps/mm to 116 steps/mm. To make the design easier, I recalibrated my printer based on the Make magazine dimensional accuracy test object. Because I’m not very good at measuring (nor very observant about all the dimensions I needed to measure), it took me seven tries to get a design that would work. Several of the dimensions of the clip are critical, and getting them even half a millimeter off made the clip non-functional. The existing pin for holding down the aluminum plate rotates into place in the semicircular hole left for it. IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,įITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.Here is another view, with the clip the right way up, viewed from the pin side, rather than the glass side. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR ![]() In all copies or substantial portions of the Software. The above copyright notice and this permission notice shall be included ![]() Software is furnished to do so, subject to the following conditions: ![]() The rights to use, copy, modify, merge, publish, distribute, sublicense,Īnd/or sell copies of the Software, and to permit persons to whom the To deal in the Software without restriction, including without limitation Permission is hereby granted, free of charge, to any person obtaining aĬopy of this software and associated documentation files (the "Software"), There are other options out there, but this one is MIT licensed – so use it to your heart’s content! This basically is a cylinder that you can pick how many degrees of the circle to draw. Unfortunately, OpenScad does not have a wedge.
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