TREX 500 少改

tangray

如用82mg servo,前面的 servo波頭改用大暴龍的長頸波頭後,可使連桿垂直

[ 本帖最後由 tangray 於 2008-1-4 13:51 編輯 ]

mugen511

wangzsin

OSOS

FANCER

沒錯!盡量消除水平分力,提高servo垂直分力及槓桿 theory.:deem79

Jonylien

公大說有得有道理, 因 3D MP 也是就這個理論, 有向 Henseilet 求證過喔!

、但公大大, 600N 的離合器飛到 20 次就裂了, 是正常? 還是?
附照片, 己經清洗過了

OSOS

香姬士

phpxx

飛行公仔

直昇機嘛!免不了依飛友個人喜好設定有所不同!
至於十字盤與伺服器臂連桿"X向"(目視機頭前端)垂直度如何!這有關飛友所選用伺服機"大小""高度"之不同!會有所角度差(內8外8)!飛友可選用適合球頭長度調整!如tangray大建議!
至於500的十字盤與伺服器臂動作連桿"Y向"內斜是特別設計(如上圖3.4)!它有增強當十字盤於大推力角助力!這是JK經測試飛行後驗證特殊正常設計!請飛友放心依說明書設定使用!

bobbyshow

盡量保持垂直才可以讓正負PITCH行程相等~~如果不保持垂直多多少少會有差異的!~

three0403

國外另一種觀點,有關十字盤於0度位置時連桿應否成垂直之討論,這與樓主diy少改內容不相關
個人觀點,依結構力學來說,下圖設計擺臂於最大施力點連桿與十字盤盡可能成90度應該較合理,有道理


Regardless of whether or not a linkage is "vertical", the output of a servo arm will only be linear when measured angularly. The school of thought behind the longer servo arms makes perfect sense, although, a thorough explanation would be pretty drawn out. If you look at a Sceadu EVO 50, you'll see that it employs the same idea on it's aileron linkage.

Study my illustration below and you should be able to visualize the advantages.



Naturally, a servo's output on a particular axis decreases exponentially near the extreme ends of its travel due to the fact that servo arms move in an arc. When you setup a machine so that at neutral, the servo arms form 90 degree angles with the linkages to the swash(IE Fig. 1&2), you'll see that the swash will be more active/sensitive around neutral and less so at the extremes. Now, when you setup a machine so that at neutral, the servo arms form angles LESS than 90 degrees with the linkages to the swash(IE Fig. 3&4), you'll find that overall, the swash movement will be more linear throughout it's range. The only issues with having longer arms is that your servos will be working harder and you'll loose resolution since you will need less travel.

In a DX7, the exp(exponential) function under the swash mix menu has a similar effect.

Always remember you're unique, just like everyone else.

[ 本帖最後由 three0403 於 2008-1-5 03:08 編輯 ]

1024

XBOY

monster_kkk

呵呵  歪一點點不重要  操機的手才是良藥