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searchwing-minitalon-aufbau [2019/04/06 19:44]
bjoernh1 [Rumpf zusammenkleben]
searchwing-minitalon-aufbau [2019/09/21 13:06] (current)
beckmanf [Connectors, Cables and Switches] jst-gh housings
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 ===== KnowHow ===== ===== KnowHow =====
 +
  
 ==== PX4 Parameter auslesen ==== ==== PX4 Parameter auslesen ====
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   * Flugzeug auf Stangen so auflegen, dass die Flügelvorderkante an den Anschlägen ist   * Flugzeug auf Stangen so auflegen, dass die Flügelvorderkante an den Anschlägen ist
   * Gleichgewicht überprüfen,​ ansonsten Flugzeug anpassen um 70mm zu erreichen   * Gleichgewicht überprüfen,​ ansonsten Flugzeug anpassen um 70mm zu erreichen
 +
 +==== Connectors, Cables and Switches ====
 +
 +=== Servo Cable ===
 +
 +We use the [[https://​emaxmodel.com/​es08md.html|Emax ES08MD servo]]. Servo cables come in two different coloring schemes.
 +
 +  * Futaba: black = ground, red = plus, white = signal
 +  * JR/​Graupner:​ brown = ground, red = plus, orange = signal
 +
 +The minimum cable diameter is 0.08 mm2 (AWG30) and the maximum cable diameter is 0.5 mm2 (AWG18), which is limited by the servo standard connector. There are two different isolation materials around
 +
 +  * PVC: The default material and is used by cheaper cables
 +  * Silicone: Higher flexibility but does not connect to glue like hot melt. They are often twisted.
 +
 +The cable comes in different qualities regarding the flexibility which translates to a different number of copper wires
 +in the cable.
 +
 +  * Flexible, e.g. [[https://​products.lappgroup.com/​fileadmin/​documents/​technische_doku/​datenblaetter/​sonstige/​DB4125000EN.pdf|0.14mm2 LiY Cable]] comes with 18 x 0.1mm wires
 +  * Highly flexible, e.g. [[https://​www.buerklin.com/​en/​Products/​Cables-%26-Wires/​Stranded-Wires%2C-Single-Cores/​Insulated-Hook-up-Wires/​HELUKABEL-PVC-stranded-wire%2C-highly-flexible%2C-LifY-0-14-mm²%2C-black/​p/​93F1282|0.14mm2 LiFY]] comes with 72 x 0.05 wires for the same diameter. ​
 +
 +For our application the highly flexible versions should be used because they are designed for vibration environments.
 +
 +Basic servo cable could be: [[https://​kabel-me.eu/​details/​54000|Muldental 3 x 0.14mm2 (AWG26), 72x0.05mm, PVC cable, JR color]], 5m for 6.10€.
 +
 +=== Servo standard connector ===
 +
 +The standard servo connectors are based on [[https://​www.digikey.com/​catalog/​en/​partgroup/​mini-pv-basics/​7725|FCI Amphenol Mini PV Basics+]]. ​ There are different connectors for the AWG18-20, AWG22-26 and the AWG28-30 range. See the [[https://​www.amphenol-icc.com/​basics-mini-pv-47439001lf.html|product description]]. [[http://​tech.mattmillman.com/​info/​crimpconnectors/​|Crimping seems prone to errors]], so precrimped cables might be the way to go.
 +
 +  * [[https://​kabel-me.eu/​details/​68200|Connector cable 0.14mm2, 30cm]] for 2.80€ ​
 +  * [[https://​kabel-me.eu/​kategorie/​1013|Muldental Elektronik Premium Extension Cables (better connector)]]
 +  * [[https://​kabel-me.eu/​kategorie/​1023|Muldental Elektronik Basic   ​Extension Cables]]
 +  * Muldental Premium extensions: 0.25mm2 ([[https://​kabel-me.eu/​details/​68250|10cm,​ 4.40€]], [[https://​kabel-me.eu/​details/​68251|25cm]])
 +
 +I think in the lab we have a [[https://​www.harwin.com/​filter/?​level=3&​code=C20C&​tlcode=C|clone product from Harwin]]. The housings and connectors of [[https://​forum.pololu.com/​t/​pre-crimped-0-1-pitch-wires-and-amp-fci-mini-pv-connector-housings/​10430|different manufacturers seem not to fit]].
 +
 +=== Servo cable watersealed connector M5 ===
 +
 +The wings must be removable and the fuselage must be watersealed. Therefore the servos in the wings are connected with a
 +
 +  * [[https://​www.norcomp.net/​series/​m5-series-circular-connector|NorComp M5 3-pin connector]],​ IP67, Cable AWG26 - AWG28
 +  * [[https://​www.digikey.de/​products/​de?​keywords=850-003-103RLU4|850-003-103RLU4]] - 3 position, male connector, gold plated, 5.70€ each
 +  * [[https://​www.digikey.de/​products/​de?​keywords=850-003-203RLU4|850-003-203RLU4]] - 3 position, female connector, gold plated, 6.00€
 +
 +=== Accu cable ===
 +
 +Also for the accu a highly flexible cable should be used.
 +
 +  * [[https://​kabel-me.eu/​details/​55043|Muldental 2.5mm2, 651x0.07mm, Silicon cable]] - 6.90€ for 4m (1.70€/m)
 +  * [[https://​kabel-me.eu/​details/​58368D|XT60 with 30cm 2.5mm2 cable - prefconfigured]] - 4.20€
 +
 +=== Power cable for Telemetry and Pi ===
 +
 +The RFD868 telemetry modem and the Raspberry Pi are powered from an extra power supply. Both have the 2.54 mm standard connectors. Therefore this can be connected with the servo cable connectors. Suitable might be:
 +
 +  * [[https://​kabel-me.eu/​details/​59183| Muldental Premium 0.5mm2 20cm power connector]] 1.80€
 +  * [[https://​kabel-me.eu/​details/​59145|Muldental premium 0.5mm2 30cm servo connector]] 3.10€
 +
 +=== JST-GH Connector and Cable for PixRacer ===
 +
 +The Pixracer, the mRobotics power module and the mRobotics GPS have JST-GH connectors. The crimping again requires special tooling. But there are precrimped cables.
 +
 +  * [[https://​www.digikey.de/​product-detail/​de/​jst-sales-america-inc/​AGHGH28K305/​455-3074-ND/​6009450|AWG28 (0.08mm2) 30cm JST-GH cable]] at 0.40€ per cable.
 +  * [[https://​www.digikey.de/​product-detail/​de/​jst-sales-america-inc/​GHR-06V-S/​455-1596-ND/​807818|JST-GH 6pin connector]] for UART and power
 +  * [[https://​www.digikey.de/​product-detail/​de/​jst-sales-america-inc/​GHR-05V-S/​455-1595-ND/​807817|JST-GH 5pin connector]] for RC in (PPM/SBUS)
 +  * [[https://​www.digikey.de/​product-detail/​de/​jst-sales-america-inc/​GHR-04V-S/​455-1594-ND/​807816|JST-GH 4pin connector]] for FrySky port
 +
  
 ===== Montage Rumpf und Halterungen ===== ===== Montage Rumpf und Halterungen =====
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  • searchwing-minitalon-aufbau.1554572668.txt.gz
  • Last modified: 2019/04/06 19:44
  • by bjoernh1