Small thumbwheel for bed leveling

prusaprinters

<p>Small 18mm thumbwheels from manually adjusting beds on assorted derivative i3 kit printers. <a href="https://youtu.be/PNEnV7rsIJA">Replaces smaller metal thumbscrew nuts and wing nuts</a> but should not bump into anything.</p> <p>An M3 screw has a 0.5mm thread pitch when means a full turned of a bed leveling nut moved the bed 0.5mm. Two turns would be a full millimeter. The thumbwheel I designed has 10 points on it so every point is 0.05mm height change. Two points would move that corner of the bed up or down 0.1 mm.</p> <p>I created another <a href="https://www.thingiverse.com/thing:915845">thumbwheel design</a> that is too big for some of my newer i3 kits.</p> <p>This thumbwheel works well with Tronxy X3, Zonestar P802M, Anet A8, and a few other i3 kits.</p> <p>If you find this useful, please encourage me with a tip.</p> <p>UPDATE: added a new version with the numbers in reverse per maker's correct logic: small_thumbwheel_rev2.stl &lt;-- use this one from now one.</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>Tronxy X3</p> <p class="detail-setting supports"><strong>Supports: </strong> <div><p>No</p></div> <p><strong>Resolution:</strong></p> <p>0.12mm - 0.16mm</p> <p class="detail-setting infill"><strong>Infill: </strong> <div><p>20%</p></div> <p><strong>Notes:</strong></p> <p>Has a built in support ring that you should be able to push out with a 2.5mm hex wrench. A M3 nut should press fit into it.</p> <p>3 shells.</p> <h3>Post-Printing</h3> <p>Use a 2.5mm hex wrench to pop out the support ring.</p> <p>Press in an M3 nut.</p> <h3>How I Designed This</h3> <p>I used my drug of choice, <a href="http://www.onshape.com">Onshape</a>.</p> <p>Started the design on my iPad, then refined in on my iMac.</p> </p></p> Category: 3D Printer Parts