Uploaded August 2020 | Updated September 2026, 2 weeks ago
In this video I demonstrate a technique for making replacement arc and linear scales for a Bridgeport Milling Machine. To achieve the necessary contrast I use anodised aluminium and a simple spring loaded drag engraving tool to scribe the digits and tick marks on the scale. Drag engraving tools don't need to rotate to mark the metal and they can be used in a CNC milling machine or a CNC router. My drag engraving tool came from a company called Boring Research boringresearch.com/store/drag-engraver
In this video I demonstrate a technique for making replacement arc and linear scales for a Bridgeport Milling Machine. To achieve the necessary contrast I use anodised aluminium and a simple spring loaded drag engraving tool to scribe the digits and tick marks on the scale. Drag engraving tools don't need to rotate to mark the metal and they can be used in a CNC milling machine or a CNC router. My drag engraving tool came from a company called Boring Research boringresearch.com/store/drag-engraver
