building a “mobile homelab” consisting of a US$280 10-watt 6-core Ryzen 5 Beelink SER5 handheld “mini desktop computer” with 16GiB of RAM running Proxmox (seems to have HDMI out), a GL-Inet AP running OpenWRT USB-tethered to his 100-megabit-per-second 5G cellphone with Tailscale, a 5-port gigabit Ethernet switch, and a US$500 Anker 533 512-watt-hour (?) (1.8MJ) portable power station, all mounted on a 750-watt e-bike with a 48V 14Ah battery (2.4MJ), which is what this #video is shilling for. He’s reverse-proxying stuff on the homelab subnet with nginx over Tailscale. Total cost US$900, not counting the e-bike, which they donated to him for shilling it.
#3D-printing pioneer "Sanjay Mortimer" died at 32 of “either an accidental overdose or #suicide”.
#Marco-Reps #video of laser engraving with a 60-watt Q-switched ComMarker B4 fiber laser, with working settings for different materials, including color on stainless and titanium. Lots of iridescent colors. He also uses it to remove rust from a steel piston, to cut a stainless WLCSP-16 solder-paste stencil for reballing an ICE40, to weld plastic, to spot-weld stainless sheet, to weld nickel strip onto a lithium-ion battery, to weld a copper ring onto a low-carbon steel hermetic feedthrough (intermetallic laser welding), and most astonishingly, cutting 2mm steel sheet.
#Marco-Reps #video on #precision #metrology for evaluating his open-source ADR1000 voltage standards. He ends up #3D-printing #flexures out of ASA for its low creep to preload copper-on-copper rotary-switch contacts to try to keep oxidation down. His stator contacts are bare copper on an aluminum PCB. #electronics #hardware
#Marco-Reps #video #toread on #precision #metrology power supplies #electronics #hardware
#video on scratching off the surface of copper-clad FR4 PCB with a scriber in order to make a quick prototype board for surface-mount #electronics #hardware #manufacturing
#video #toread on many different #electronics #hardware #manufacturing prototyping techniques
#video saying in January #Argentina eliminates a 7.5% import tariff (on I guess everything). #Milei #politics