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

Last crawled date: 3 years ago

The Bolt VC-310 Speedlight or "Flash" from B&H (aka Neewer NW320 or Meike MK320 from others) is a small versatile flash that is great for more compact mirror-less cameras, but accessories such as "grids" for it are impossible to find.
This "thing" is a grid light modifier that easily and securely clips onto the flash the same way the factory included diffuser does. The grid is made of hexagons at 5mm pitch with 0.8mm walls. Thinner walls were impossible to properly slice in Cura. If you want to learn more about grids etc check out this webpage.
The STL files are available in 7.5, 10, 20, 30 and 40mm grid depths for choice of spot size. The 40mm grid may be a little excessive. Most people will want the 10 and 20mm size (see attached images taken with 10, 20 and 40mm grids using 34mm equivalent focal length @ 8ft). I tried a 5mm depth grid but it had a ugly ring of light around it. I may try to experiment with more sizes.
UPDATE Jan-4 2018:
I had 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). I printed a bunch and used a glue stick to attach the gel films, and then trim around it with a good pair of scissors. You could could probably just tuck one in and use this gel holder to retain it.