Microphone Isolation Shield

I needed a microphone isolation shield to help control reverb and external noise when recording voice overs. None of the available solutions were large or flexible enough for my application. I also wanted a system that I could reconfigure (add or subtract) should the need arise in the future.

I designed these to fit a 1/2 panel of 12" x 12" x 2" foam that you can typically buy on Amazon or FB Marketplace. You might also need to trim the height just a tad. I prefer the foam panel without the self adhesive because the aggressiveness and durability of the adhesive can vary from manufacturer to manufacturer. I used 3M's All Purpose Spray Adhesive. You can spray just one side in case you may want to replace the panels in the future, or both sides for a more permanent bond.  I also designed these for a table top placement.

Since thess are on the larger side, it definitely needs a printer with at least 300mm in one of the dimensions. There is a left panel, a right panel, and  an inside panel. The left and right are for the ends and print as many inside panels that you might need for your application (I needed a total of 6 panels). I've also included 3 different base heights to choose from. (I needed the tall one.) Print the panels and the bases separately and glue them together when done.

The way that I assembled them: 1) Print the panel and bases 2) Glue the panel and bases together 3) Attach  the foam to the panels, trimmed to fit 4) Pin the panels together - don't glue.

Tips: 1) I added modifiers to the hinges with 100% infill for reenforcement. 2) Print the connector pins also @ 100% infill. If your printer prints the pins a little too large, sand them gently to fit, but it should be a snug fit. 3) To help with assembling the panels together, I aligned the hinges 90º to each other for easier access and to get the pins to slide in easier. If there were any pins that needed a little '"persuasion", I used a punch and GENTLY tapped them into place with a tack hammer. Just make sure the hinges are in line with each other before tapping them in.

My settings:

• Typical PLA filament settings

• .2 height

• 2 walls, 25% infill-perimeter overlap

• 15% gyroid infill global setting

• Pins were printed upside-down w/ 5mm brim

• Panels don't need supports or brim (when printed on back), hinges printed @ 100% infill w/ modifiers

• Bases - Organic (manual) supports

I hope you find these useful and effective for your application, and happy printing and recording!