Step-by-step production process.
primary testing
add GPS antenna
GPS antenna testing
GPS antenna tuning (1592 MHz in air)
remove 2 components from the charger (positions D3 + U13)
remove all components from the top part of the board (above the EMI shield)
add zero-ohm resistor
add EMI shield (temporarily attached in one corner)
add tag extension 21,4 mm + tag (do not solder right-side battery/2,5V pins on the tag extensions)
tape underneath the tag to protect holes for programming from the resin
enlarge holes on the charger (2 mm drill)
battery 5-pack assembly (5x Saft-14250; 3mm x 0.1mm welding strap)
apply hot glue all around the EMI shield (to prevent the resin flowing underneath it)
add foam protection - antenova (12x12x17mm) (note: should be added at the very end, after the application of hot glue)
plastic enclosure production
washing of the enclosure
screw holes indentation on attachment plates
polishing the attachment plates
engraving of serial numbers (laser parameters: power 30%, speed 250 mm/s)
Electrolube PU resin UR5528
cca. 38g/piece
TPU leather flat belt production (BioThane Granite 230 TPU Coated Webbing, colour TN232)
width: 38 mm
length: 1.0 m
logo engraving (cutting: power 100%, speed 10 mm/s, scanning: power 40%, speed 250 mm/s)