I am working on my first SatNOGS station (the 3D Printer is pulling an all day and nighter to print the parts for me), but I was working on some of the other parts while I wait. I plan to user a Raspberry Pi with Gpredict to work satellite stations. I know the BOM called out for a USB to RS485 and the Meanwell power supply for the 48v, but does anyone have any thoughts on a Raspberry Pi RS485 hat (https://widgetlords.com/products/pi-spi-rs485-raspberry-pi-rs485-interface)?
I am concerned with the power as it appears to only support up to 24v power supply, but the RJ45 connectors have dual V+. It would be nice to run the one Cat5e or Cat6 cable for data and power.
For the most part, I followed what they wanted in the instructions (https://wiki.satnogs.org/SatNOGS_Rotator_v3#Parts), but I didn’t use ABS (I haven’t printed with it yet and I am still working on the enclosure to help with the printing of ABS). Instead I used PETG (which is kind of a middle ground between PLA and ABS; easier to print with then ABS, no bad fumes, and I don’t need an enclosure, but it isn’t as strong as ABS or as heat resistance). I also did a 0.15 mm layer height instead of the 0.4 mm (my printer only has profiles up to 0.2 mm, I think 0.4 mm is a little big on the height) and I think I ran 3 perimeters. Longevity will be a test and maybe I will print ABS versions as well. I used more filament with the 0.15 layer height, but I think it will help the overall strength. So far the prints have come out good with a couple issues on spanning items (like the key hole in the gear for the end stop numb, which is hard since it is spanning over a curve).