Nut & Bolt LCD Knob (for 6mm dial), incl. Fusion360 & STEP files

Remodeled @layer.works's Nut and Bolt LCD Control Knob w/ changes:

• Smaller 
• Improved fit
• Added dimple to top of bolt to improve feel of selection action
• Sharing Fusion360 (.f3d) and STEP files

Smaller

While I'm a big fan of the idea and aesthetic, the original felt a bit to large proportionally and covered more of the emergency stop button below the knob. Fusion360 parametric file included, allowing further size customizations.

Improved Fit

I wasn't happy with the distance my original print sat off of the surface. I set the diameter of the dial cavity to 6.25mm. This maintains secure fit and required clearance for selection actuation while allowing the knob to seat better (in my opinion, of course). This is provided as a variable in the Fusion360 file, allowing quick and easy customization for dials of varying diameter or printers/materials needing different tolerances.

Added dimple

The original design always felt like my finger was slipping during single finger selection action. I added a dimple to the top of the ‘bolt’ with a depth of 0.8mm which improved this experience considerably. There's a bit of sanding/cleanup to do on the knob as pictured, but I feel this is worth the improved feel.

Fusion360 & STEP files

I often run into great ideas that need a tiny bit of tweaking for my preferences or circumstances, so I believe strongly in sharing the source files to allow easier modifications and customizations. Please consider including your source files (very least solid body) when uploading your next project, as I have done here.

Printed in PETG with 0.4mm Nozzle, 0.05mm Layer Height, 100% Infill*, and 3 perimeters.

*Not necessary - I was getting strange curvature on the back wall of the nut/hexagon and solid infill minimized this. This also occurred on original model and is apparently something I need to resolve with my printer; 20% infill should be more than sufficient.

‘MK3S_LCDknob’ printed in 2hrs 36m (on MK3S)