Microphone Flag

by flummer, published

Microphone Flag by flummer May 26, 2012

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This is a microphone flag to be used with regular handheld interview microphones.
I have tested it with my Shure Beta 58A microphones, but it should easily fit many other vocal/interview mics.
The OpenSCAD file is made so that it is easy to change the size an shape to fit more or less any logo or name that you would want to put on it.
I have also attached a few different STL files, for those that don't want to bother with OpenSCAD and just want a standard flag.


I have been printing these as they appear in the STL files (only moved up to sit on the platform). There is a large overhang section when doing it this way, but the bottom part of the overhang (where it won't be perfect on machines without support material) is inside the flag and will be covered with foam.
If you have trouble printing these flags as described above, you could move the top plate with the cutout for the microphone up to be flush with the top of the walls, and print it upside down (simple edit of the SCAD file).
After you have printed the flag, cut out a piece of foam (I prefer dark grey foam, but it doesn't really matter) to fit snugly inside the flag.
Lastly, cut a hole middle of the foam that fit's your microphone, but make sure it's not too big, it needs to be tight enough to hold the flag on the microphone.
If you want a different size, simply open the SCAD file and change the values in the function call in the bottom of the file.
The measurements are mm and specifies the size of a single side of the flag. This way it's easy to customize the flags to fit existing stickers with your logo.

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On the three sided flag it prints into three pieces that can be glued together, correct? Also for the sizes, sense the mic you have in the picture is same as mine what dimensions did you use? Last one, it just slides up the mic? I don't want it to be something permeant that requires me gluing it to the microphone.

All the flags are supposed to print in one piece. No gluing should be needed, only a little cleanup because of overhang and then a piece of foam inside.

If you make the hole too big/sides too small, the design can end up in multiple pieces, that's an error, and won't work out.

I used 40 mm for the hole diameter for the Shure Beta58A. That works well, and probably will with most hand-held microphones. If you need to put it on a microphone holder (eg. for radio broadcast studio) you might need to adjust the diameter to fit your holder.

For a triangular flag with a hole diameter of 40, the sides needs to be at least 70mm I think, if you use the customizer.

Hope it helps.


thank you so much for the Scad File, after spending days with 3D modeling programs to no success, i was able to open your file in Openscad and adjust the parameters to get exactly the right size of Mic flag we needed. is there an easy way to adjust the hole size ? and how about one with a bottom to ? we are putting them onto Mic Boom Arms (yellowtec Mika) and a bottom would be nice

OK, I just uploaded a new SCAD file, that also supports changing the hole size and selecting bottom or no bottom.

To make it all easier to use, it now also supports Customizer, so that you can change it all here on Thingiverse (it's a bit slow, but it works).

I look forward to a picture of your setup when you are done printing ;-)


Flummer the bottom isnt working properly, it is not on the bottom , when you make it 75 tall or higher you can see the bottom only offset from the top slightly, so its making two tops and no bottom.
also i have been printing them top up and they come out fine, just a few loose threads on the underside


The SCAD file has been changed to put the bottom flush with the build plate and bottom part of the flag sides.


The bottom still isnt rendering properly, think it is still flush with the top, when i make a 45,45,4,35, it makes it tiered

Hmm... I'm not sure exactly what you are saying, but it might be a slight error in the examples, there need to be quotes around the "true" part for the bottom to work, I forgot that, but the file is updated now, so the module call should be: flag(45, 45, 4, 35, "true");

Does that fix the problem?


For some reason it wont render properly in Openscad, the bottom gets created but it made the top Tiered
i WAS able to edit in Customizer , i made a 50,50 (2" sticker fits ) with a 33mm hole, it was installed upside down, (Flat side on top)
they are designed to go on a Yellowtec Mic arm (with on air Light) with a Neumann BCM Mic. it fits tight to the LED
See Pcture

Hi Jeff,

Glad you like it!

I can probably find a way to add in a bottom too (I guess it's just a matter of copying the top and moving it down a bit), but it will be a bit tricky with printing it nicely if it's on a printer without support material, but what the heck.

Stay tuned!


Very cool! This is definitely a gadget which needed to be open-sourced.

Thanks, I have been working on a few different things in relation to ENG and shooting video with DSLR which will come up as they gets finished.