cnc-mill-roland-srm-20.md

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 Milling PCBs is **ONLY POSSIBLE** with FR1 material. The lab has ample supply of PCB blanks - just ask for some. If you bring your own stuff - you **MUST** check it with a member of staff for compatibility with the milling process.
 
 **FR4 materials, which are Glass-Fiber reinforced produce very fine glass dust which is a serious health hazard.**