Flight Control for Black Shark by loubial

First of all, I want to thank my gurus and inspiration in terms of simulation that are Triggerhappy69 and Oakes.

I started the realization of flight controls for Black Shark (collective, cyclic and rudder). The major principle of this project are:

- Mechanical, made by milling and turning (thick aluminum), uses hydraulics and has no springs (no return to the center ring)

- The electronics is based on reuse of PCBs my cougar (stick and trottle), and thus setting the foxy and hall effect sensors (SS495), (except for the rudder that keeps potentiometers).

- The Cougar joystick will be the cyclic stick.

- The rudder resume some elements of my ProPedal in a new geometry.

The design is based on Autodesk Inventor

Manufacturing is done with a milling SIEG X3 (without CNC but with DRO) and a late CQ6l25

The first pictures of the design:

[Private joke ON

Manufacturing is done with a milling SIEG X3 (without CNC but with DRO) and a late CQ6l25

j'comprends mieux maintenant !!! effectivement tu t'es fait plaisir et tu vas pouvoir t'occuper un moment avec ce bel outillage ... ça permet de faire des choses que la majorité des bricoleurs ne peut pas faire !

Maintenant si tu n'y arrives pas avec ça... c'est toi qui paie la bouteille !

OFF]

Tss tss tss, with a file, a hacksaw, a drill and some bits, you can do the same or almost ready to finish

I'm ok to pay the second bottle

love it. Love It. LOVE IT..!

I measure the dc voltage on the pot of the cougar trottle. It is supplied at 3.7 VDC and generates a voltage amplitude of 0.4 to 3.3 VDC on the course.

My sensor (ss495A) is powered with 5 VDC, with the idea to generate the same voltage amplitude to benefit from the automatic calibration software. (I understand that modes using a Hall effect lost this feature and I suspect that these modes have amplitudes of tension outside the range of the auto calibration setting cougar (somebody have a feedback?)

I made a small experiment designed to approximate the parameters of the voltage amplitude (power of magnets / gap)

With a pair of magnet D6mm/L6mm, an air gap and a minimum adjustment range of 180 °, I spend 5.3vcd # 0 vdc that is the nominal voltage of power supply in my old pc.

By decrasing the zise of the magnets and playing on the gap, I approach the goal easy 0.4 => 3.3 VDC ... I wil adjust in the final assembly

To see the pictures

The sensor is inserted into a small aluminum tube fixed to the deck. It is fixed. It is covered by a hollow shaft which supports the bearings. This axis is connected to an aluminum (# 25x25x50) which carries the magnets. All swings around the axis and varies the magnetic field ...

Back in two weeks holidays in the sun ... resumption of the project.

The mechanical part is done (excluding the collective head )

See pictures.

The small tube is designed to receive a weight-cons if the head is too heavy and unbalanced the sensations provided by the hydraulic jack. The hardness setting is done by adjusting the length of the lever arm (the damper is not adjustable).

To give an idea of the size of the part, the damper rod is 21 cm long, the collective arm 40cm, for 30 ° deflection.

The sensations are nice. No parasitic friction, no play (although I have to redo the fixing pin jack on the rear tube. The adjustment control trees / bore (without screw assembly and disassembly without extractor) qq hundredths of mm playpurchased through an experience that I have not hardly! (I had to block the punches rolling with screws rather than start over. (It seems that in the automotive industry, the bearings are mounted the glue ...)

:cry: sorry for the google translation... I can explain again in a other form if it's not undersanting

it remains to implement the hall sensor (connected instead of trottle the cougar) and if my theory is correct ...

Man, that is extremely cool! Awesome work!!!

Thank's !

Excellent workmanship :thumbup:

Will you make blueprints public or...? I'm just curious :)

Public. Just ask..and I mail

Awesome work! I'm in the process of building a CNC and this might make a really nice project once I figure out how to use it! PM inbound, would greatly appreciate the plans on this!

At this time, I have built the collectif as you can see on this post. I use a pocket bike damper wich is not the best solution. For other command, I'm in prototyping phase

You can follow my progrees on this forum http://www.checksix-forums.com/showthread.php?t=159606

When I will be ok, no problem for plans

rep +1

great job!

lost in translation

Although a picture says a thousand words, i still dont get the big picture...

(im talking about the french forum thread)

It'd be nice if you could post an update on this forum aswell in english, swedish, norwegian or german :helpsmilie:

pic's look really nice though

Man I REALLY dig the way you design things..!

So simple in manufacturing, and still strue to the general outlines of the original..

Ps. Are the rotary dampener also for a pocket bike? I want one for my Collective setup.. (yeah, I know.. You'll see why in a couple of days)

I'm not able to write directly in english without helper on-line tranlator . :cry:

I promise to do an effort to do it and translate my recent expiriment to hydarulique flight control, sites address, budget and plans

How do I adjust the output voltage of Hall sensor

The slope of the curve, then the amplitude of voltage produced depends on the strength of the magnetic field surrounding the sensor

Range of Motion

The position of the magnetic field from the Hall sensor (symmetrical or more or less eccentric) and power (controlled by the power of the two magnets and thus their distance) to adjust to the nearest target voltage.

Screw lock magnets

See below (two page in hte show -clic, clic)

The first picture is the centerpiece of the collective (submitted upstream) where we see the housing magnets on both sides of the axis, the (small) screw for locking the magnets in the set position . The sensor (Honeywell SS495) that fits into a hole in the shaft and is positioned in the middle of the gap magnets.

The sensor is fixed, are the magnets that rotate

The following pictures show the progress of setting the air gap:

e = 4.4mm Voltage = 0.2 => 4.78 vdc

e = 9mm Voltage = 0.4 => 3.34 vdc

with an angular deviation of about 30 °

The target is reached! remains more than to validate with calibration of cougar ... and the resultant sensitivity (by moving the animal in hand, I can generate voltage variations of 1/100th of a volt.

The magnets are sell by <A href="http://[font=Times New Roman" target=_blank>http://www.supermagnete.fr/index.php

Final assembly of the collective... and the first test online with tha cougar trottle PCB... and the final attachement on my seat.:clap_2:

check MP

 

Ps. Are the rotary dampener also for a pocket bike? I want one for my Collective setup.. (yeah, I know.. You'll see why in a couple of days)

The manufacturer of rotary dampers that I chose does not come from the motorcycle world but the industry (KINETROL model KAF-DD).

I have validated my choice through a benchmark (published on checksix in french) I'll post here as soon as possible.

I leave the solution minibike steering damper, because the sensitivity of the current movement is not good

I'm very interested in your hall sensor solution - it looks inexpensive and simple enough but but I don't understand how it works from looking at the pics. Do you have a drawing of it or can you explain it to me as if I'm a retard that I probably am? :D

Hall sensor is electronic compound with different input and output voltage (or ampera... I forgot).

If the compound is placed inside a magnetic field, it produce a voltage output modification.

the voltage ouput of the coumpound is a function of the angle between the coumpound and the orientation of magnetic field.

therefore you have the same type of variation as ouput of a potentiometer is a function of angle of the axel of that potentiometer

2 soluces for assembly :

fixed magnets and rotative coumpound or fixed coumpound and rotative magnets

voltage of output is parameter of force of magnetic field, which is function of duty of magnets and distance between magnets and coumpound.

look at french site for photos, Loubial is not very easy with english translation.

It will probably come soon, because he is a perfectionnist, but it will take some time... be patient...

I hope that sum up will help you.

see also google and wiki for Hall sensors...

heh. Sorry I wasn't very clear. I know what a hall sensor is. :D I was wondering if he could draw a simple diagram of how he set up his hall sensor - how they all go together. For example, this is the magnets and they go here and the sensor goes here etc.

I already have a collective built but I lack the knowledge to assemble the electronics or even know where or which sensors or magnet to get.