Flash Grids for Bolt VC-310 / Neewer NW320 / Meike MK320

thingiverse

The Neewer NW320 or Meike MK320 from B&H is known as the Bolt VC-310 Speedlight or "Flash." This small, versatile flash is ideal for compact mirror-less cameras, but accessories like grids are extremely hard to find. A grid light modifier that clips onto the flash securely, just like the factory included diffuser, is what this thing is. The grid consists of hexagons at 5mm pitch with 0.8mm walls. Thinner walls could not be properly sliced in Cura. If you want more information about grids and so on check out [this webpage](http://strobist.blogspot.com/2007/11/lighting-102-41-restricting-light.html). The STL files are available for 7.5, 10, 20, 30 and 40mm grid depths to choose the spot size you want. The 40mm grid may be a little too much. Most people will want the 10 and 20mm sizes (see attached images taken with 10, 20 and 40mm grids using 34mm equivalent focal length @ 8ft). A 5mm depth grid was tried but had an ugly ring of light around it. More sizes may be experimented with. <b>UPDATE Jan-4 2018:</b> I previously left 2mm of space between the grid and the flash face. I've now added a gel holder design that can be placed in there (see photos). A bunch were printed, and glue stick was used to attach the gel films, then trim around it with good scissors. One could probably just tuck one in and use this gel holder to retain it.