GLOBAL METEOR NETWORK 4 CAMERA HOUSING

thingiverse

This is a 4-camera housing for the Global Meteor Network https://globalmeteornetwork.org. UPDATE 7/4/23: I updated the body to include just one 30mm fan instead of 2 20mm fans. The 20mm fans were not high quality and I couldn't find any decent ones. New fans are linked in the parts below. I will provide some basic information on how this works, it is offered as is with no further support. There is a lot more information on setup and configuration at the link above. This will require technical skills such as networking, soldering, and wiring up a 12v temperature controller. I run all 4 cameras from a PoE switch mounted outside under a patio cover and these are fed to a server running a ubuntu VM and the configuration for multiple GMN cameras. The instructions for setting up multiple cameras on the same machine can be found at the link above. I operate in southern AZ, so a cooling system was a must. Thereis a place to mount a 30mm 12v exhaust fan to keep the interior cool during the hot days and nights. Temperatures here get over 110f (43c) during the summer. The Vicat Softening temperature for the filament is 85c. There are two intake vents where you will want to place a filter media that lets adequate air through to keep the interior well under the softening temp. I use some carbon filter material that I cut thin enough to catch dust but also allow good air flow. The design avoids an acrylic dome in order to prevent sky distortion from the dome and to keep the cameras shaded during the day. You will have to purchase 4 30mm AR glass panes below and carefully install them with high temp silicone. I also painted the enclosure with some UV protecting outdoor spray paint. The 12v temp controller comes with instructions on how to wire it up. It's a bit complicated so verify it's working correctly before deployment. This is placed inside of the enclosure with the cameras. The fan is powered over PoE like the cameras are, as each camera has a spare set of 12v wires that are unused. I used a single set from one camera and this works fine to keep the enclosure cool. I use 4, 4mm lenses with the IMX291 cameras and this covers most of the sky with a small hole over zenith.You'll want to cover the led and screen on the 12v temp switch as they are bright. You'll need to print 3 of the top screws to fasten the top to the base, and 8 of the cam screws to fasten the camera holders to the base. Do not try to print this with anything other than a high temp filament like PETG or ABS or TPU. Print all parts at 0.2mm resolution. Print the cap upside down. The only supports it should need are for the 4 windows. Print the main body upside down as well. This will save on unnecessary supports. PARTS: 12v Fans: https://www.amazon.com/gp/product/B07DB4TDMV/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 12v digital temp controller: https://www.amazon.com/HiLetgo-Temperature-Controller-Thermostat-One-Channel/dp/B07VDRGK9F/ref=sr_1_5?crid=1W03Q9TT4QDJ&keywords=12V+Digital+Temperature+Controller&qid=1688019983&sprefix=%2Caps%2C146&sr=8-5 30mm AR glass: https://www.aliexpress.us/item/3256802241434575.html?spm=a2g0o.order_list.order_list_main.5.21ef1802TaUsqh&gatewayAdapt=glo2usa Cameras (4mm lens) https://www.aliexpress.us/item/2251832722341269.html?spm=a2g0o.order_list.order_list_main.21.21ef1802TaUsqh&gatewayAdapt=glo2usa4itemAdapt Cable glands: https://www.amazon.com/Waterproof-Adjustable-Connectors-Plastic-Protectors/dp/B085NVDC3K/ref=sr_1_3?crid=IF49DTG6FQBT&keywords=waterproof+cable+pass&qid=1688023528&sprefix=waterproof+cable+pass%2Caps%2C144&sr=8-3 PoE Splitters: https://www.amazon.com/gp/product/B085PP73HR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1