This is the STL file for the Fatbox that I've been working on for a while. It's supposed to be a battery module that straps on a Fatshark goggle strap and powers the goggles. Here are the list of pros & cons (biased ofc).
- Easy way to power goggles
- Easy setup of goggles
- Switch to turn goggles on/off
- Voltage readout to determine batt charge (on a switch so it's not constantly on)
- Cooling fans to help components last longer
- Fits inside the goggle case
- Coiled cable that adjusts to head size
- Balances front & back weight as it's on the back of your head
- Type C charging
- Adjustable output voltage to suit needs (Apparently Fatsharks work best at 9v)
- BMS for battery safety
- Strap holes to strap to goggles
- Somewhat clean look
- More weight on head
- Due to the design of the case the dc plug can't be connected while in the case
- Not the easiest/cleanest build
- Costs more than average xt60-dc cable and using existing batts
- Design isn't perfect so there might be areas that don't fit perfectly
- Due to the size of the pack, it won't be the easiest to fit with the case
- Switches used are rather sensitive. Can cause unexpected power losses if pressed lightly
- Because it has switches, it can be accidentally turned off while leaning on something
- Hot glue kinda looks ugly
- Fit isn't perfect due to the desired compactness
- Charging takes at least 1.5h due to the regulators being only 2a
- Regulators gets pretty hot especially while charging despite the heatsink & cooling fan
On my youtube channel I will be uploading a build guide.
As mentioned before, the build isn't the cleanest and easiest to do, so it might not be for newbies. Also, make sure to have files around in case a component doesn't fit.
Most of the components were mounted using hot glue.
List of parts -
- Baesus USB Type C female to Type A male (any Type c female converter will work)
- 1208YD Self-locking switch DC30v 1A (2)
- DC 0-100v mini voltmeter 0.36"
- 3007 Raspberry pi cooling fan (30x30x7mm) (2)
- MT3608 DC-DC step up converter (I got the one with microusb due to prev. versions)
- Sony VTC6 18650 cells (2)
- Generic heatsinks
- DC 5525 plug
- Generic coiled charging cable. I got mine off of a old car phone charger
- Li-ion 2s 8.4v 20A BMS (Just get generic 2s BMS)
- M2x10mm screws (4)
- Antenna used is the ORT Dual Shield antenna
I'm not sure why the thing is oriented that way. Just turn it 90˚ so that it lays flat and print. In terms of printing, supports aren't necessary but they do help with the holes & such.
Just use your normal PLA print settings
Optional sanding to make it have a smooth finish and help remove some of the lines 'n such. A file is definitely necessary in case something doesn't fit. I used a flat file and a round one.