Rotary Encoder Mount for MAME Control Panel
Description
Originally posted on the Build Your Own Arcade Controls (BYOAC) forums. http://forum.arcadecontrols.com/index.php/topic,165028.msg1740098.html#msg1740098 Here are two parametric rotary encoder mounts designed for use on a 3/4" (or thinner) control panel. - One has a chamfered edge. - One has a roundover edge. The .STL files have been reoriented so they are ready-to-print. - You'll need to print the desired mount and nut. The OpenSCAD files generate both a mount and a nut. - Flip the mount face down before printing it. - Separate the .STL into two separate objects so they can sit flat on the print surface. ------------------------------ Tools: - 2" or 50mm hole saw - Screwdriver Hardware: - M3-0.5 x 8mm screws (3 ea.) OpenSCAD Software: (optional) http://www.openscad.org/ ------------------------------ Printing instructions: Print the mount face down. No supports needed. ------------------------------ Installation instructions: Install the mount and nut, then the encoder and screws, then the knob. 1. Drill a 2"/50mm hole in your 3/4" thick (or less) control panel. 2. Fasten the mount to the panel using the nut. - Keep in mind that it is very easy to cross-thread. - Use the "turn the nut backward until you hear a click then turn it forward" trick to avoid cross-threading. 3. After that, insert the encoder into the mount, align with the correct (outermost) set of screw holes, and fasten the encoder to the mount using M3-0.5 x 8mm screws. 3. install the knob. 4. Play some Tempest or Arkanoid . . . just to be sure everything is working OK. :) ------------ Customizing the mount in OpenSCAD: 1. Open the .scad file in OpenSCAD. 2. Make any desired changes to the variable values on lines 52-67. - If the threaded part is too tall and hits the cable, adjust "ThreadedRodHeight". - If you want countersunk screw holes, change "ScrewHoleTop". - There must be a ";" after the variable. -- Think of it like the game "Simon Says". No ";" = not saying "Simon says" = don't do it. - "//" indicates a comment or disabled code. 3. Preview (toolbar icon or F5) - If there is a syntax error like a missing ";", preview will crash and flag the next line of code 4. Render (toolbar icon or F6) - Prepares the object for export. 5. Export as STL (toolbar icon or File -- Export -- Export as STL . . .)
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