Wingnut Knob + Customizer

thingiverse

2017-06-15 Version 6 [added Advanced Options] This precision-machined knob press fits seamlessly onto an M3 wing nut, providing a secure and customizable fit. I use it on the wingnuts of my 3D printer build plate to achieve precise leveling adjustments with ease. The larger diameter of this knob enhances fine-tuning capabilities and offers a more comfortable experience compared to using a wing nut alone. After installing these custom-designed knobs, I can quickly adjust the build plate without needing to set a z offset in software. Movement from one digit position to the next moves the build surface 0.05 mm. For ISO screws, the axial distance traveled by moving the knob from one handle cut position to the next is screw pitch / numberOfCuts. M3 coarse pitch is 0.5 mm and the knob has 10 carefully crafted cut-outs. https://en.wikipedia.org/wiki/ISO_metric_screw_thread Version 6 includes advanced parameters to set a wingnut a little deeper into the knob for optimal performance. Adding a M3 lock nut to the recess on the other side ensures that the knob remains securely in place, preventing loosening over time. If the wingnut opening is slightly too loose or too tight, I recommend rescaling the STL 0.5 % at a time to achieve a precise fit. The Customizer can create knobs for various bolt sizes, although I have only tested it with M3 bolts. Further testing is necessary to determine its effectiveness with other bolt sizes. I've included a Simplify3D v4.1 Factory File as a guide. Please note that this file should not be used without modifications. This design is a remix of Sopak's Metric Screw Knob in OpenSCAD . The text_on_OpenSCAD script by brodykenrick is utilized to create the digits on the knob. Other wingnut covers and replacements are also available: http://www.thingiverse.com/thing:1340078 http://www.thingiverse.com/thing:1031185 http://www.thingiverse.com/thing:353353 http://www.thingiverse.com/thing:1470962 http://www.thingiverse.com/thing:1291324 http://www.thingiverse.com/thing:1564959 http://www.thingiverse.com/thing:1032666 Print Settings Printer: Flashforge Creator Pro Rafts: No Supports: Yes Resolution: 0.4 Infill: 50% Notes: Used PETG filament, which printed in approximately 20 minutes with a base speed of 30 mm/s.