Dụng cụ mài dao phiên bản V3

I really liked CNCKitchen's sharpener design, but I wanted some extra refinements, making the construction a bit simpler, using not so many different types of screws. So here's my remix.

Changes from V2.1:

• redesigned handle for quick switching of stones.
• moved legs forward 2 cm for extra stability
• added hole on bottom for adding a 40mm suction cup
• tighter tolerances for 10mm tube holes.
• tighter tolerance for guide-slot.
• changed screw-mount for vertical tube to press-fit.
• added a cap for vertical tube.
• capped holes on feet.
• added user Badpassword's guide (great print-in-place design)
• optional 10mm handle & guide so you only need 1 size tube.
• Created smaller angle guides, you need these to be able to set the angle on the knife itself, to compensate for knife angle.

Hardware needed:

• 2x 10mm diameter x 180mm aluminum rod/tube for the body
• 6mm (or 10mm) diameter x 280mm aluminum rod/tube for the handle
• 1x M5x30mm hex head bolt + Washer + Thumb Nut for knife guide.
• 1x M5x 30mm hex head bolt + nut for handle
• glue to fix rods in place.
• 10x 10x2mm disc magnets (optional)
• optional 40 mm suction cup for extra stability 

Sharpening Tips:

• get a set of stones for example 1000,3000 and 6000 grit. Start from lowest grit.
• Soak stones before sharpening.
• sharpen one side of blade until you can feel a burr, then change side, then move to higher grit.
• only apply pressure on the push stroke. don't apply pressure on the pull.
• cover about an inch every stroke, work your way along the blade.
• keep the blade edge parallel to the sharpener edge.