I picked up a hot knife from Amazon and made some nice adjustments to my Drone Crates box today. Below the controller, I cut in a spot for my Bubble Level for the Speedy Prop Balancer. The rod for the Speedy is shining at the bottom of the tablet holder on the far left. Then to the right of the P3 is the Multi battery charger. I cut it in using the full depth of the knife and it worked smooth being that this was the first cut and first time using a hot knife for styrofoam. In the lower right I had marked a spot to cut out for the Professional Lenses by Rainbowers but the wooden box was too tall to put in there after I checked the depth. So I moved on to the next part.
You can see the bottom of the Speedy Prop Balancer base setting where the battery would sit if it was installed on the Phantom. What I did was simply cut 2 slots for the uprights to slide into this area to hold it in place. I have no plans on ever leaving the P3 in the crate with a battery in basically because I take out the controller on rainy days and play around some. So I won't take a chance on starting the P3 that I have put in the box... lol. I cut these slots shallow enough so that the uprights don't penetrate to the controller, yet deep enough to keep it held in place by the battery box. I just measured and cut these 2 slits with a small saw.
Everything fits tight and it's really nice having everything that I carry, except for the filters, in the one crate. I just couldn't fit the filters in unless I took them out of the box and it's a nice box to have and fits in my other camera case with my 2 other video camera's.
I bought this knife http://www.amazon.com/gp/product/B0069RVTVW?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00
and I live between Sacramento and Reno. I bought the knife just for this project and now if any of you guys are close enough and see a need to modify your box, you can borrow this Hot Knife or we can meet up and cut your box the way that you want to for the price of the first Beer When I got my case, I did the video review and put it here - "Drone Crates" Phantom 3 Roller Case - Review video | DJI Phantom Forum
Then Drone Crates sent me a message telling me that a few of the cases had the battery openings on the right, cut to close together like with mine and that they are going to send me a new inner. Being that I wanted a place for my charger and everything else to fit in the box anyway, I researched about cutting styrofoam and bought this knife just for this.
So now I have both chargers in there along with the Balancer, my 4 batteries, props, and everything And I'm happy with how easy it was to modify