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--- sherline_training_sop [2022/10/05 22:16] – furst
+++ sherline_training_sop [2022/10/05 22:18] (current) – furst
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 Last edited: Furst (08/26/20)
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 ====Overview:====
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 ====Applications====
-The Sherline CNC is used exclusively for for drilling holes in glass, ceramic, silicon, or other brittle materials. Milling of brittle materials is not supported. The Sherline uses a high speed spindle in combination with abrasive diamond drill bits to slowly abrade the material away.
+The Sherline CNC is used exclusively for for drilling holes in glass, ceramic, silicon, and other brittle materials. Milling of brittle materials is not supported. The Sherline uses a high speed spindle in combination with abrasive diamond drill bits to slowly abrade the material away.
 Typical applications include adding macro to micro interface connecters to Microfluidics chips.
 ====Software====
-The Sherline CNC uses a retrofitted Sherline mini mill in combination with the FlashCut CNC software. This SOP does not cover dxf2fgc conversion code.
+The Sherline CNC uses a retrofit Sherline mini mill in combination with the FlashCut CNC software. This SOP does not cover dxf2fgc conversion code.
 FlashCut CNC offers a user interface for positioning, zeroing, and running the G-code, however it has no CAM capabilities. This means that G-code must be hand written based on the location of holes.
 ====Sample Prep====
-A backing plate is required for drilling, and should be bonded to the substrate to be drilled to improve backside cut quality. If bonding is not permitted, slowing down cut speed may result in less blowout on the backside of the hole.
+A backing plate is required for drilling, and should be bonded to the substrate to be drilled to improve backside cut quality and prevent drilling into the fixture. If bonding is not permitted, slowing down cut speed may result in less blowout on the backside of the hole and a backing plate should still be used.
   - set CrystalBond hotplate to 121 degrees C
   - place a sheet of tinfoil or wax paper over hotplate to avoid spilling of crystal bond