Größe: 3600
Kommentar:
|
Größe: 4700
Kommentar:
|
Gelöschter Text ist auf diese Art markiert. | Hinzugefügter Text ist auf diese Art markiert. |
Zeile 4: | Zeile 4: |
= MK3638 & MK3538 = | |
Zeile 7: | Zeile 8: |
[[http://gallery.mikrokopter.de/main.php/v/tech/MK3638_001.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=80891}}]] | |
Zeile 8: | Zeile 10: |
[[http://gallery.mikrokopter.de/main.php/v/tech/MK3538a.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=67382}}]] |
[[http://gallery.mikrokopter.de/main.php/v/tech/MK3538d.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=67393}}]] |
Zeile 12: | Zeile 13: |
[[http://gallery.mikrokopter.de/main.php/v/tech/MK3538d.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=67393}}]] | = where to buy = The Motor is custom made for MikroKopter only. You can buy it [[https://www.mikrocontroller.com/index.php?main_page=product_info&cPath=73&products_id=535|here]] |
Zeile 19: | Zeile 21: |
= technical data = | = Technical data = |
Zeile 25: | Zeile 27: |
||Efficency: || max. ?? % || | ||Efficiency: || must still be measured || |
Zeile 31: | Zeile 33: |
||shaft diameter: ||4 mm || | ||Shaft diameter: ||4 mm || = Mounting plan = [[http://gallery.mikrokopter.de/main.php/v/tech/MK3538.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=69565}}]] |
Zeile 35: | Zeile 41: |
== different Props == | == Different props == |
Zeile 48: | Zeile 54: |
=== EPP-CF (chopped fiber) === [[http://gallery.mikrokopter.de/main.php/v/tech/MK3538_characteristic_curve_EPP_CF.gif.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=75006}}]] |
|
Zeile 54: | Zeile 63: |
== Example: == | == Example == |
Zeile 56: | Zeile 65: |
The total weight of a MikroKopter (4 Rotors) is 1400g -> so each motor needs a thrust of 350g for hoovering (1400g / 4 = 350g) | The total weight of a MikroKopter (4 Rotors) is 1400g -> so each motor needs a thrust of 350g for hovering (1400g / 4 = 350g) |
Zeile 84: | Zeile 93: |
See alos: FlugZeit | See also: FlugZeit |
Zeile 86: | Zeile 95: |
= rotation direction = == clockwise (seen from above) == |
= Rotation direction = == Clockwise (seen from above) == |
Zeile 93: | Zeile 102: |
== counter-clockwise (seen from above) == | == Counter-clockwise (seen from above) == |
Zeile 99: | Zeile 108: |
== difference MK3538 vs. MK3638 == [[http://gallery.mikrokopter.de/main.php/v/tech/MK3538a.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=67381}}]] [[http://gallery.mikrokopter.de/main.php/v/tech/MK3638.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=80886}}]] Compared to the MK3538 the MK3638 has laser engravings and bigger ball bearings. The bigger bearings make the motor more silent. |
|
Zeile 100: | Zeile 115: |
Zeile 103: | Zeile 117: |
---- KategorieMotoren |
see also: ROXXY2827-35, ROXXY2827-34, ROXXY2815, ROXXY2824-34, AntriebsTheorie
MK3638 & MK3538
Inhaltsverzeichnis
Photo
where to buy
The Motor is custom made for MikroKopter only. You can buy it here
Features
This motor has long wires (52cm), a short shaft and a small clipring. So it can be mounted directly on the aluminium arm.
Technical data
Voltage Lithium: |
3-6 |
Current: |
max 20A |
Current max. (60 Sek.): |
25 A |
RPM/V: |
770 Rpm/V |
Propellers: |
10" - 14" |
Efficiency: |
must still be measured |
Electrical power: |
max 350 W |
Thrust max.: |
max 2200 g |
Weight (only motor) |
100g |
Weight incl. cable and adapter |
125g |
Dimensions: |
h=38 d=35 mm |
Shaft diameter: |
4 mm |
Mounting plan
Thrust over current
Different props
Same curve in higher resolution:
APC Propellers
13x6,5 APC
EPP-CF (chopped fiber)
How to read the curves
With this curves it is easy to estimate the needed current and even estimate the flight-time.
You can read the needed current for each needed thrust
Example
The total weight of a MikroKopter (4 Rotors) is 1400g -> so each motor needs a thrust of 350g for hovering (1400g / 4 = 350g)
Current needed for 350g with the 13x6,5 APC - Propeller? -> 1,8A
Current needed for 350g with the 12x8 APC - Propeller? -> 2,4A
The total current for all four motors would be 7,2A (4 * 1,8A) or 9,6A (4 * 2,4A)
Flight time
You can estimate the flight time with this formular:
Time = 54 * Lipo / Current
(54 because we estimate 10% losses -> 60 * 0,9)
In case we would have a 3300 Lipo (3,3Ah), the Flight time for the 13x6,5 would be:
Time = 54 * 3,3 / 7,2 = 24,7 min
The same for the 12x8 Prop:
Time = 54 * 3,3 / 9,6 = 18,5 min
That is a different of 33% in flight time!
See also: FlugZeit
Rotation direction
Clockwise (seen from above)
Connection:
- A = gray
- B = blue
- C = black
Counter-clockwise (seen from above)
Connection:
- A = blue
- B = gray
- C = black
difference MK3538 vs. MK3638
Compared to the MK3538 the MK3638 has laser engravings and bigger ball bearings. The bigger bearings make the motor more silent.