The parts in this kit are designed to be 3D printed with FDM based machines. STL files are oriented to print "as is". Parts require tight tolerances that might need adjustment of slice settings. Reference the suggested settings below.
DIY 3D Printed Crank for Rotary Encoders
Need a crank for a rotary encoder? Here's a print-in-place model that features a hinged arm and free-rotating handle. The pieces can not be disassembled. It's just one part that prints in about 20 minutes. Press fits over any flat nose rotary encoder, for those times where you need a cranky crank!
Fusion 360 model included with accompanying STEP file. User parameters are setup for tolerances, length, shaft diameter etc. Gap is set to 0.4mm in STL file. Check out the source for your own tweaks!
Parts were sliced using Ultimaker's CURA software and tested with an Ultimaker 3 and Flashforge Inventor II. The kit requires a minimum build volume of 150mm cubed. No support material is necessary for any of the parts. Double check parts are positioned in the center of the build plate before printing.
Use these settings as reference. Values listed were used in Ultimaker's CURA slicing software.
- 0.2mm Layer Height / 0.4mm nozzle
- 0.38mm Line Width (inner & outer widths)
- 40mm/s printing speed
- 20% infill
- Supports: No
The fusion 360 source file is included and features original sketches and feature timeline along with easily editable user parameters. The parts can further be separated into small pieces for fitting on printers with smaller build volumes. Note: STEP file is included for other 3D surface modeling programs such as Onshape, Solidworks and Rhino.
Interested in CAD tutorials? Check out my playlist on YouTube – There's over 100 of them! My personal favorite is the snap fit tutorial for cases and enclosures.