[[searchwing-waterlanding]]

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searchwing-waterlanding [2019/03/30 15:28]
j0ge4622 Merged topic waterproof and -landing
searchwing-waterlanding [2021/04/18 22:17] (current)
beckmanf [Kugellager]
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   * [[https://​www.youtube.com/​watch?​v=dBxiN9bK3UI|Thales Fulmar with waterlanding]] with [[https://​www.thalesgroup.com/​sites/​default/​files/​database/​d7/​asset/​document/​fulmar-ing_final_24-02-2014.pdf|Datasheet]]   * [[https://​www.youtube.com/​watch?​v=dBxiN9bK3UI|Thales Fulmar with waterlanding]] with [[https://​www.thalesgroup.com/​sites/​default/​files/​database/​d7/​asset/​document/​fulmar-ing_final_24-02-2014.pdf|Datasheet]]
  
-===== Construction ​=====+===== Kugellager ​=====
  
-[[:​searchwing-waterproof-glue|]]+=== Tests / Research ===
  
-==== Overview ====+  * {{ ::​technical_note._salt_water_testing.pdf | I. Milenkov, G. Walter, "​Evaluation of the performance of electric motor and the effect of salt water on it.", Technical Note, Nov. 2020}}
  
-{{:​waterproof_overview.jpg?​400}}+=== Austauschlager ===
  
-These are the sections to close on the fuselage.+Der Motor ist außerhalb des Rumpfes und deshalb mit Seewasser in KontaktDie Kugellager können gegen wasser- und rostgeschützte Varianten getauscht werden. Markus hat bei einigen Motoren die Lager getauscht. Am Motor sind zwei Lager verbaut:
  
-==== Bulkhead to separate the motor ====+  * Lager 1 ist ID=5, AD=16, H=5 (mm) 
 +  * Lager 2 ist ID=5, AD=11, H=5 (mm)
  
-{{:waterproof_bulkhead.jpg?400}}+Die Tauschlager sollten möglichst aus VA Stahl und bevorzugt mit einer Dichtung aus NBR (2RS) statt einem Deckel (2Z) ausgestattet sein. Bei SKF gibt es ein [[https://www.skf.com/​de/​products/​rolling-bearings/​ball-bearings/​deep-groove-ball-bearings|Suchformular]]. Folgende Lager könnten als Austauschlage geeignet sein:
  
-{{:waterproof_bulkhead_2.jpg?​400}} +  * Lager 1: [[https://​www.skf.com/de/products/rolling-bearings/​ball-bearings/​deep-groove-ball-bearings/productid-W%20625-2RS1|SKF W 625-2RS1]] oder [[https://​www.hug-technik.com/shop/product_info.php?​info=p35735|ZEN S625-2RS]] oder [[https://​www.ludwigmeister.de/​artikel/​rillenkugellager/38079/ezo-miniaturlager-mit-beidseitiger-abdichtung-niro/248625-2rs-va-1014259|EZO 248-625-2RS-VA]] 
- +  * Lager 2: [[https://​www.skf.com/de/products/​rolling-bearings/​ball-bearings/​deep-groove-ball-bearings/productid-W%20638%2F5-2RS1|SKF W 638/5-2RS1]] oder [[https://www.hug-technik.com/​shop/​product_info.php?info=p35772|ZEN S685-2RS]] oder EZO 685-2RS-VA
-==== Closing holes ==== +
- +
-The so glued model had some holes to fill / close. I used thin plexi-glas. Best way to glue them was hot glue, as it can also fill little holes or irregularities in thickness. +
- +
-{{:​waterproof_camera.jpg?​400}} +
- +
-I used the same technique also on other parts. +
- +
-===== Sealing connections and small holes ===== +
- +
-Using a good tape can close all kind of connections and other small or thin holes. I used "3m Blenderm"​ - a waterproof and flexible tape: +
- +
-{{:​waterproof_tape.jpg?​400}} +
- +
-One other option is hot glue - as in this example: +
- +
-{{:​waterproof_hot_glue_single_holes.jpg?​400}} +
- +
-===== Waterproofing the servos ===== +
- +
-there are 2 interesting articles on Instructables on this topic: +
- +
-[[https://​www.instructables.com/id/Water-proofing-a-Servo/​|https://​www.instructables.com/id/Water-proofing-a-Servo/​]] [[https://​www.instructables.com/id/Waterproof-your-servo-motors/​|https://​www.instructables.com/id/Waterproof-your-servo-motors/]] (if you want to follow this one, dont forget the glitter on your finger nails) +
- +
-1. Make the housing waterproof +
- +
-* I used "​Curil",​ a standard sealing compound. * Open the servo and put the sealant an all touching surfaces * also put sealant to the cable, where it leads through the housing +
- +
-{{:servo_sealant.jpg?400}} +
- +
-2. Insert a O-Ring under the horn +
- +
-* remove the horn * add a 1mm thick o-ring * add some lubricationI used "CRC Multilube"​ - attention - lubrication has to be compatible with the rubber of the sealantDon't use silicon rings with silicon lubricant. * screw the horn back on +
- +
-{{:​servo_oring.jpg?400}} +
- +
-==== Test it... ==== +
- +
-submerge in water while it moves no bubbles should emerge+
  
 ===== Waterproof capsule ===== ===== Waterproof capsule =====
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 {{:​wiki:​img_6a0ab1732ff3-1.jpeg?​nolink&​800|img_6a0ab1732ff3-1.jpeg}} {{:​wiki:​img_6a0ab1732ff3-1.jpeg?​nolink&​800|img_6a0ab1732ff3-1.jpeg}}
 +
 +===== Waterproof Block Diagram =====
 +
 +{{:​wiki:​blockschaltbild.png?​nolink&​}}
  
  
  • searchwing-waterlanding.1553956106.txt.gz
  • Last modified: 2019/03/30 15:28
  • by j0ge4622