One of the families is a fiercer who creates a sharp knife with a food wrap

Person who beat aluminum foil and heated to make knifeHowever, I am publishing amazing movies that make knives using "food wrap" which seems to be one in any home.

Suspicious people working on making knives for the world's best food wrap - YouTube


Speaking of rapSaran wrap·Krapp·Hitachi Rap·DialapAlthough there are various types such as various, as a result of various experiments, the movie creator concludes that Dialup is optimal for knife making because it is less bubbles, less soluble in heat, hardens when hardened, and so on. That is why we use that diaper.


Use one of 30 cm × 100 m.


Raw material is polyethylene and nylon, heat resistant temperature is 160 degrees.


First of all, from a roll of a rather thick lap ... ....


Remove unnecessary parts.


In the movie, I made knives from one third of the lap.


Hot air gun that can send hot air of 50 degrees to 550 degrees is prepared.


Measuring the temperature of hot air.


With a hot air of 162.8 degrees slightly exceeding the heat resistant temperature of the lap ... ...


Heat the lap.


The one which heated on the left side with hot air.


It seems that the heated place is discolored slightly whitish, but when it is a movie, I do not know the color change or change in appearance.


Heat the whole of the lap in the same way ......


Fixed in vice.


Cut the roll vertically with a cutter.


It seems that the tip which had been carefully heated first was not able to cut easily. If you hit the tip of the lap already at this point you will hear a "concon" and you can see that the heat is solidifying the lap.



Then fix the wrap that has rounded columnarly with a metal plate and screws and heat it with a hot air gun.


Then, the lap which had rounded like this was transformed into a plate shape.


I do this extension work throughout the lap ... ...


A plate of resin material made by heating food wrap is completed.


Put this in two cutting boards and press it with vise.


I succeeded in turning into a cleaner plate shape.


Looking through the light, it looks like this.


Place a kitchen knife on the board and take it out ... ...


I will fix it to vise and cut it to the standard form.


Cut the file in the section after cutting.


Successfully cut to a knife type.


Next, use a diamond grinding wheel (grinding stone) with grain size # 150 and sharpen the roughly scraped cross section.



A file appeared again. Sharpen knives with this.



In addition, I continue to sharpen the kitchen knife with sandpaper with different particle sizes of # 220, # 1000, # 3000.




After that, it shifted to sharpening using a grindstone. Whetstones are used in the order # 6000, # 12000, # 30000.




After polishing the kitchen knife with the # 30000 grinding stone ......


To finishLeather grindingUse.



When sharpening the blade, prepare food wrap.


Once wrapped around the handle part of the kitchen knife made with lap straps ......


100% Food wrapping knife is completed.


Cut the cucumber actually. I was able to cut without incompatibility ... ...


The section of the cut cucumber is also this street.


Even tomatoes are easy to break.


That's why this is the finished food wrapping kitchen knife.


The tip is like this and the warp is well reproduced.