Are there any options for an off brand focal lens. I have one on my M3 Ultra that needs replacement, but the GWEIKE website shows they are out of stock.
hi on m3 size is 20mm any generic double side curve lens for co2 laser will work if id of a tube size match lens used best is GaAs od 20mm lens for laser CO2 if that is the size you need
did not looked at my m3max-ultra for what size is a tube or lens size on co2 laser
i did look and worked on my small m3 and if its same as on big m3 models lens size is 20mm
i did replace a tube temporary to od 24mm later will switch to od 25mm tubes on all gw laser i work on and one lens per tube for fast fd switch from 24mm -190mm if tubes permit and z axis focus options for nozzle to media distance
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