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| Base machine: Kitchen Knife Sharpener: Shiko Seisakusyo STD-180E (Japanese domestic version?) | A 3D printer |
 Photo From Amazon |
  Photos from Monotaro |
| Diamond disks: grit #180, #320, D180mm 1mm thickness 20USD each https://www.amazon.co.jp/gp/product/B07GBVW57X/ref=ppx_yo_dt_b_asin_title_o03_s00 ダイヤモンド研削盤 #180, #320, 外径180mmx1mm厚 \2000 |
Glass plate x2 30x20cm 8-10mm thickness about 10-20 USD each Abrasive: Carborundum #800 500g Alundum #1500 250g about 15-30 USD each https://www.monotaro.com/g/04473003/ https://www.monotaro.com/g/04473005/ ガラス板（普通ガラス厚板29x19cmx8mm厚，コダマガラスで入手，１枚１０００円見当） 研磨剤カーボランダム(#800 500g），アランダム(#1500 少量) モノタロウなどで入手 \3000 \1650 |
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| Autodesk Fusion360: making 3D model(STL file) |
Slicing by Cura |
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| Left: An arbor made by using a lathe machine Right: made by a 3D printer |
Tapping a reverse 5/8W screw hole by a tap. |
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| Assembling the arbor on the motor rod. The left side is by a lathe machine made. |
A grinding machine is completed! |
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| Grit 180 surface by my NikonS Polarized microscope, 2.2mm width | Grit 320 surface by my NikonS Polarized microscope, 2.2mm width, Some big diamond particles are found. These are the cause of scratch scars. |