Test tube peg rack (customizable)

prusaprinters

<h4>What is a test tube peg rack?</h4><p>The test tube peg rack can serve a number of purpose like, normal test tube rack, tube drying rack and glass plate rack (SDS-PAGE?). It is compact comparing to usual test tube rack design. Essential for people who often need to wash a air-dry boatloads of test tubes.</p><h4>Why print it yourself?</h4><ul><li>Tailor-made for your <strong>tube sizes</strong> and <strong>capacity per rack</strong></li><li>Optional feature: text label</li><li>Optional feature: bottom ribs, to elevate/tilt inverted test tubes, for water vapor to escape</li><li>Save from the rip-off price offered by science vendors</li><li>Minimum order restriction, bureaucracy, etc.</li></ul><h4>Included files</h4><ul><li><strong>Test tube rack peg 4x6.stl</strong>: for 24x tubes of 15~17mm diameter (rim doesn't matter). Most people should use this.</li><li><strong>Test tube rack peg 10x26.stl</strong>: for 260x tubes of 15~17mm diameter (rim doesn't matter)</li><li><strong>Test tube rack peg.scad</strong>: OpenSCAD file for you to customize your rack</li></ul><h4>How to customize?</h4><ol><li>Download and install OpenSCAD</li><li>Use OpenSCAD to open the SCAD file</li><li>on the right hand side, there should be a “customizer panel”, expand the tabs and tweak settings</li><li>Press F5 to preview</li><li>If looks okay, press F6 to render… wait for finish</li><li>Press F7 to export as STL</li></ol><h4>Parameter details</h4><ul><li><strong>Tube diameter</strong>: set this to your largest tube's diameter PLUS one</li><li><strong>Capacity tube row</strong>: number of slots across a row. Max 26 slots (labelled as A~Z)</li><li><strong>Capacity tube column</strong>: number of slots down a column. Max 10 slots (labelled as 0~9)</li><li>Pillar diameter: Leave default if using rimless tubes. For rimmed tubes, this value should be larger than (rim diameter-tube diameter. A maximum of 10mm should be sufficient for any test tube/boiling tube</li><li>Pillar height: measurement counting from the bottom of the base. Usually 5~6cm for commercial products.</li><li>Edge margin: enlarge the base to add stability. This is a fixed amount, not percentage</li><li>Base height: Height of base plate. Default is 5mm. For even better stability, turn it up to 10mm should be sufficient</li><li>Has rib: add elevated strip along the bottom of pillars. This is used to tilt the inverted tubes slightly so that water vapor can escape.</li><li>Rib thickness: 1~2mm should be sufficient</li><li>Draw label: Add column and row headings to indicate the location of slots. (A~Z, 0~9)</li><li>Font size: label size</li></ul><h4>Recommended print settings:</h4><ul><li>Material: PETG</li><li>Layer height: 0.2mm</li><li>Speed: Fast</li><li>Infill: 20~50%</li></ul><p>&nbsp;</p><p>&nbsp;</p>