Ultimate MSXR, Ultimate Machine 4DOF/5DOF

potentiometer support new development.
adjusting the tension of the belt

I hope I will soon replace the engines with more powerful engines.
My first test shows a lack of power.
inertia and high speed requires more power.
the first tests were done with 30 rpm motor 0.55 kw.
I will go to 1.1 kw motor 30 rpm, to a linear velocity of 480 mm / s
I have this time a reserve capacity!
I will soon weld the final elements, and the parts of the changes I made.

some testing and adjustment with AMC 128USB
the best result at the moment is at the end of the video.
I still work on the settings.
this is not the final engine, this one is 30 rpm 0.55 kw.
( the new will be 1.1kw. 30rpm)

there will be more torque

Je viens de passer la dernière heure à regarder et à lire votre fil. Absolument génial mon ami. Dans la perspective du résultat final.

I just spent the last hour watching and reading your thread. Absolutely brilliant my friend. In view of the final result.

Merci bien !
j'espère terminer ce projet et le rendre parfaitement fonctionnel!
je rencontre quelque soucis, mais ça devrait bien ce finir, j'espère !!

tu est Français?

thank you!

I hope to complete this project and make it fully functional!

I meet some problems, but it should finish what I hope !!




you are French?

just to see how it works!

semble bon - non, je ne suis pas français ... je suis un Anglais vivant aux Etats-Unis.
looks good - no, I'm not French... I'm an Englishman living in the USA.

Merry Christmas from France !

hi,
some new project.
I advanced a little, I soldered my columns
for fixing the poles, it will allow me to move forward on finalizing the installation.
Subsequently, it is already well advanced:
verif measurements and manufacturing of X holding the poles,
mounting tabs ...
as originally planned but awaiting verif, making a 2 nd cross mountings 3 poles,
they will be sandwiched.
less cool:
I'll change what I do and turn the engine mount flat front welded to the tube.
if I did not galley too much and it's clean as I like, I turn the other to return to single tube.
then cut new engine mounting plate
I welded on the tube itself

the aim is to put the rods parallel to the tube so that the displacement is linear in the axis of "actuators"

At the same time, I soldered my other 2 wheel bracket, the first being sold to our friends from the forum.

I'll then passed to the finalization of the study of the hub will make the rotation of the assembly.
fixing on the cross will certainly adjustable to allow for advanced
the point of rotation, to increase the distance of the center of rotation.

Modified:
I started to cut flat front or pass the cam.
it's a bit of a chore, but that did ...
make and unmake it is working!

the purpose of this mod is twofold:
- Move the engine toward the center to position, the cylinder axis to the half of the cam, that to the symmetry of the displacement.
- Move the engine back to the connecting rod is parallel to the displacement of the actuator.

I will definitely delete all the flat, my manic side.

it will be much better that way, I'm sorry I was a little fast on this point ...
especially since I had hesitated to weld immediately engine mounts without having tested true position with engines ....
That'll teach me.

then the new base engine will be a mounting plate 10 mm thick to be able to screw threaded engines.

@riton
very neat job,congrats
I see the blade on the back of the motor has a little motion
may i ask if you have a bit noise in your configuration ?
cause I had the same problem with the new AC motors project
cheers
Hooshang

Thank you.
English is not my language ...
you talk about the propeller behind the engine?
no I have no noise.
Electronic noise, parasites?
not from electronic noise.

I get a better result now see the latest video.
you need to adjust some parameter in the drive
for example, the analog filter, it becomes more responsive.
ramp at 0.0 or lower as possible.
if the drive is U / F, set the base frequency to 1 or 2 or 3 Hz to see trials.

must choose correctly motors and drives, enough power.
I would have other advice again.
must maintain the charge.
more there latency more load there loosely.

the analog filter improves the analog input response time
it is best to increase the base frequency, the motor is magnetized and it starts to some Hz torque is better.


it must be To analyze the problem, it is not necessarily the electronic noise.

well on the cable must be shielded.


what's your problem?

@riton
I had some problem because of poor wiring cables and grounding
but its solved now. when I was watching your video I mentioned the same un wanted propeller movements
in your setup so I thought it may cause of the noises in your system specially electronics or wirring.
anyway very tidy setup and waiting to see your sim in action.
thank you for reply freind

Why did you go with suck heavy steel? For the frame thats fine but I would say that you could have used much lighter materials on the mobile chasis.

steel is the best price / weight / ease of fabrication.
there are steel everywhere.
it's easy to weld MIG.
that is stiff and strong.

the simulator must be very strong to cash this I ask in speed and responsiveness.

I chose a very sleek chassis to make it easy to manufacture.
there are not a lot of elements.

if you watch a Force Dynamics is much more complicated.
it's like for the Czech sim.

the weight remains in the standard.
180kg cockpit and the pilot.

the difference would not be significant if you consider the extra cost, the materials needed ....
I could earn how much? 50 kg?
this does not change much over 3 engines

it takes big engine to accelerate 2G. 460/480mm/s
longer fight against inertia.

Im not sure what gauge steel youre using but Im willing to bet that 14 gauge 1 inch square tubing would have done you fine and would have weighed much less...where 5x5 square will run around 20$ an lb I thin 1x1 would run you 1/4 of that.

....you could have used the extra cash to get rid of that 8800gt that you have listed in your signature

I just saw a mistake, I increased the engine power.
engines will 1.5kw 30 rpm.

the real question is how much the weight down?

to make it interesting it would really important way to reduce weight.
the bulk of the weight is the poilote and accessories.
can not be the réduires.
I weighed each elements.

it is truly ilmpossible reduce significantly the weight except with Carbon.
as for aluminum price factor is too large.

increase engine power is not as expensive as that.




Octagon: 19.5kg
X3 trees (small): 2.7kg
Sliding supports x3: 5.8kg
Spherical x6: 2.2kg
Cockpit: 16kg
_________________
46.2kg

Driver: 90kg

seat: 8kg
(wheel Engine: 11.4kg)
wheel Engine + wheel: 12.6
Steering wheel support: 5kg
Crank: 2.5kg
Handbrake: 1.2kg
Shifter: 1.5kg

167 kg for all

I could reduce as the octogonne and cockpit is 19.5k and 16kg

35.5 kg reduction, how to win? 50% 17kg? over 3 engines is insignificant.

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