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魔界狂想曲- 第1713章 圓鋸 轉動式刨子-玄幻奇幻-萬花小說
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第1713章 圓鋸 轉動式刨子

  華夏國的弩就是給弓裝一個架子和扳機,用之前把弓弦給拉開,掛到扳機上,不需要一直用手拉著弦。對於很有力的弓,拉著弦是極為耗費力氣的。


  弩這種原理,使得那種力氣特別大的弓用於實戰也不需要耗費太大力氣。拉弦的時候借用腿的力量使勁的蹬就行了。


  但是馬林不知道怎麽製作力氣特別大的弓。


  複合弓是什麽意思?

  他的想法是這樣子,一張弓的力道是五十磅,把兩張弓給綁到一起,想拉開它或許就需要一百磅了。


  那麽,怎麽把兩張弓給綁到一起,才能夠讓它們的力道相加呢?

  直接用一根很粗的木頭做一張弓不好麽?

  不知道。


  也許是因為木頭的彈性都比較有限,變形太大容易劈裂,複合弓更不容易劈裂。


  想不通。


  弓鑽消耗了他很多力氣,它的存在也使得他加工各種簡單木頭機械的時候容易很多倍。


  至於刨木板以及鋸木板時候的難題。


  他準備用比較小的圓鋸來鋸桌椅板凳的木材,用轉動的刨子來刨平木板。


  圓鋸怎麽製作?


  鐵片燒紅,在鐵砧上敲的比較均勻,外形稍微接近圓形。


  繼續燒紅,固定到轉軸上,用繩弓牽引著飛速旋轉,對著砂輪打磨。


  這樣子就比較圓了。


  還是燒紅,用鑿子鑿出鋸齒。


  接著裝到轉軸上打磨較圓。


  反複多次。


  再用磨刀石對鋸齒進行一定的加工。


  圓鋸就製作成功了。


  兩麵都要比較平,整體上要比較圓。


  裝上轉軸,用繩弓牽引就可以鋸木頭了。


  隻要轉的夠快,操作木頭的人不需要使用什麽力氣。而拉繩弓的兩人甚至四人需要使用不少力氣。


  此外充作轉軸的鐵棍需要比較直,也略微有點細。


  當下就開始製作。


  弓和繩都比較好製作。


  直鐵棍不好製作。


  這件事真是令人為難啊。


  但是並非不能製作。


  先製作細鐵棍。


  因為沒有能力把鐵燒成水,隻能鍛打。


  先把燒紅的鐵疙瘩給垂扁,然後對折,再錘扁,它就變長了。


  反複的這麽錘扁,對折,寬度一直沒有增加,長度一直在增加。


  很是消耗力氣。


  就這樣子製作出多根短鐵棍。


  再把它們給錘到一起。


  銜接處多加點鐵。


  這樣子得到了一根並不直,銜接處還很臃腫的鐵棍。


  反複的燒紅,矯正,讓它更直。配合著用砂輪把臃腫的部分給打磨掉。


  這一步要消耗非常久。


  鐵棍長一米,粗四厘米左右。


  把三根粗木棍中間打眼,把轉軸給插進去,這樣子就用三根粗棍子把它給固定住了。


  三根粗棍子自身是一個木架子的一部分。


  這個木架子固定在地上。


  怎麽防止鐵棍橫向移動?


  把鐵棍燒紅,用弓鑽打眼,眼裏插入木條,木條一側安裝墊片。這樣子鐵棍隻能轉動,而上下左右前後的移動都會鎖住了。


  鐵棍的左側呈方形,方便把圓鋸或者轉動式刨子給套上去。


  也可以把砂輪和鑽頭給套上去。


  裝上圓鋸後要配合一個中間有道豎縫的桌子來鋸木頭。


  裝上旋轉刨子的時候需要配合一個中間有道橫縫的桌子使用。


  圓鋸和轉動刨子的動力都來自於一張繩弓,讓兩名或者四名大漢用力來回拉這張繩弓,它們就會飛快的轉動。


  加工木材的這個人就在桌子上推動木材通過鋸子或者刨子,木材就會被加工好了,他什麽力氣都不用使。


  來回拉繩弓的大漢可能會有些累,但是考慮到木材加工的很標準、快速,累點也值得。


  為了推木材的時候推出直線來,可以拿筆直的木條在兩側對手中的木材進行限製。


  製作鋸木頭、刨木頭的桌子又花費了他不少時間。


  木工真的這麽重要麽?

  他不確定。


  他心裏非常重視這件事。


  他決定把打眼、鋸木頭、刨木頭給製作成三個工作台。


  而打眼的這個工作台要能夠實現一個功能。


  那就是能夠打出垂直於一塊木板的眼來。


  隻要打出來,就是垂直的。這應該怎麽辦呢?


  他有一個垂直方向的鑽頭。


  上方有一塊水平方向的木板。


  這塊木板隻可以上下滑動,不可以做別的移動。而它上下滑動的時候都是跟地麵平行的。隻有非常小的誤差。


  想給哪塊木材打眼,就把它給固定到這塊木板上。


  然後推下去。


  打出來的眼就是垂直的。


  那麽這塊木板為什麽能夠在上下滑動的時候始終平行於地麵呢?

  因為它的邊緣有三個眼,每個眼裏插了一根垂直於地麵的棍子。


  這三根豎直的棍子在頂部和底部都用同樣長的橫木給連接了起來。


  這個鑽頭用類似的三根橫木給固定住了,始終是垂直於地麵的。


  因為製作的難度,這個器材製作的比較小,鑽頭也比較的小,隻能打比較小的眼。


  它也是用繩弓驅動的,人反複拉繩弓,使它飛速的轉動。


  馬林這些器材,既浪費人力,又累,但是節省時間,而且製作出來精度比較高。


  他最便不滿意的設備就是打豎直的眼的那個設備。


  它的豎直的幾根棍子都是用木頭做的。他希望它們能夠是用金屬製作的。


  而上麵的那個木板,下麵那個支撐轉軸的結構,他也希望全是金屬製作的。


  這一點不用著急。


  日後他會擁有足夠多的金屬,這個日後不知道是猴年馬月,但是他花了三年還沒找到金屬礦,這一點太不合理了。


  他的圓鋸和轉動刨子都非常難使。


  實際試驗的時候需要四名大漢來回拉動繩弓,來驅動它們,它們才能飛快的鋸開以及刨平木材。


  但是它們有非常顯著的好處,既節省時間,又能夠把木材給加工的比較標準。


  製作一張桌子需要的時間明顯減少了一大截。


  日後他會用牲口來驅動這兩件設備,但是具體怎麽傳動,他心裏沒有數。


  自從擁有了弓鑽,了解了它的工作原理,原先的一些覺得很難的事情如今變得簡單了很多。


  比如說,怎麽把一塊木頭給加工成圓柱形?


  獨輪車的輪子其實可以使用一整塊圓木頭。


  圓木頭的中心打個洞。


  圓木頭的直徑四十厘米左右,厚度七八厘米,就挺結實了。


  關鍵是要圓,而且這個洞要打的比較正。


  在擁有弓鑽之前,這兩件事對他來說都不容易做到。


  厚度七八厘米,用弓鑽在中心處打個較正的洞眼並不是很難。


  然後把它給裝在一個轉軸上。


  轉軸由繩弓驅動,由兩名大漢像是拉鋸一般拉這個繩弓。於是這個圓木就會轉動的非常快,每秒鍾十圈以上。


  拿一把鑿子放在它的邊緣。


  鑿子不用使力氣,就能夠自動的把邊緣的木頭給刮下來,隻是一秒就能夠刮出一個比較好的圓來。

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