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Microfluidics Support Plate Milling with High Speed CNC Machine

Microfluidics support plates are used for the distribution of minimal amounts of liquids (Microfluidics) in medical technology. The challenge in milling is the precise and burr-free reproduction of the geometries, in particular the micro-channels located in the cylindrical portion of the plate, which have a width of 0.5 mm and a depth of 0.3 mm.

The support plate above is made of highly transparent acrylic glass (PMMA) is produced in two clamping operations, both of them done on a DATRON vacuum table. The orientation of the coordinate system for the second clamping operation is guaranteed by the reference drilling holes. For this purpose, the positions of the drilling hole scan be measured with DATRON’s precision probe, determining the angular displacement and automatically correcting it. 

High Speed Spindles (up to 60,000 RPM) – The high spindle speed reduces the chip load which reduces the forces between the tool and the material. High-speed/low-force machining yields less heat, reduces tool deflection, and allows machining of thinner walled work pieces. This all results in cooler machining, superior surface quality and better accuracy.



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