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wannabeaflyer
06-04-2007, 05:46 PM
Just a update and massive thank you to two great guys who have helped me to get this far and put a huge grin across my face .. a lot of work still to n#be done but theirs nothing like the guys from the A team used to Say .. Dontcha just love it when a plan comes together" big up thanks to Jim who's shown thw for the common man to build his own motion platform and Craig he's still out there warne.. between these two guys i have been able to construct a hybrid motion platorm as my way of saying thanks to both of em and to show how flexible there ideas were so here it is so far guys posted on youtube as the files were a lot bigger than expected YouTube - Drean take flight seriously happy bloke here in the UK to all of you out there follow the plan ask the questions and Voila Motion platform

Jim NZ
06-05-2007, 06:09 AM
Hi Calvin,
Great stuff,,, it goes !!!! Yes I remember the feeling.
I found your videos on youtube and it looks fantastic Calvin ... The old story,, do a bit at a time and it all comes together.

Your setup looks like a winner and I can be sure that what I seen is the start of a real fun machine.

Once you get it hooked up to FS2004 and it runs by itself then you will really be grinning. (I presume you were switching it to make it move) To actually have it moving, you must be very close to total victory on the mission.

Thanks for the compliments, but in reality, you are the one that need complimenting as you are the one that put that all together. Marvelous stuff !!!

Keep at it Calvin, I will hear the YaaaHooo from here when its complete.

See ya ... Jim NZ

TronicGr
06-05-2007, 07:32 AM
Good going Calvin,

Works great! Its not that hard to make a motion platform after all!

What is its rotation speed? It seemed to me a bit slow. But if it can hold a complete simpit then speed isn't matter much!

Keep it going! Motion stuff is cool!

Cheers, Thanos

wannabeaflyer
06-05-2007, 08:11 AM
Hi Thanos the system right now is just at concept proving stage so i can try out different things to see which will work , im hoping to make a system based on both jim and Craigs platorms to shift around 220Kg ( im a big big boned ) so i know there is a lot of work to do .. speed wise i think the motors are turning at about 60-75 RPM. have not matched the axis speeds up so still learning .. the control electrics are very much chcomm . Vellman Parallel port relay card ( 8 Relay) gwbasic, fs2004 , as i said earlier verymuch a hybrid to jims excellent method and a lot of Craigs concept ( two Really helpful Guys ) pretty much stuck to what they did and am impressed as **** that i got this far .. Been looking at rolands site because he uses DAC conversion so future plans after i learn to walk with this version will be very possible lessons learnt from this version using the mechanics and something like yours and rolands for the control f..funnily enough just been to your forum and Though i cant read greek (LOL ) Babelfish will be working overtime so i can get some info from you about the HB-25 , Portdriver ,And the basic stamp ..

wannabeaflyer
06-05-2007, 08:26 AM
Hi Jim .. Know u have not heard from me in a while but like most things grand plans then work and bills get in the way ... after all this time and i still look at your website every day ( alway eager to see your next step ) i stopped , had to make a Hanger then collected more bits , then finally got my arse into gear . and that monster is the end result .. dont know if you can see it from the video but during my collecting i aquired one steering box setup and one power steering rack and because you and craig had the best options out there i made a hybrid just to push things along... said it before a long time ago but will say it again major major thanks for all your ideas and help this pipe dream along ... you know now i have gotten this far im gonna be bugging you again LOL:-) but in the nicest possible way ... so like they say no Bull Sh...T big thank you keep up the good work you guys have followers out there... PS was also looking at IOCards for controling the platform and then saw the info that thanos posted ref HB-25 now that look like it will give me the ability to use My IOcard PCB's and Drive a Decent Motor through The HB-25 so maybe again Hybrid Control system but thats down the road .. just want to get this baby more robust .... Oh By the way the Platform was being driven through FS2004 and CHCOMM not by activating the controls manually .. spelling gremlins and lunch time rush sorry about that Cheers Jim

wannabeaflyer
06-11-2007, 07:49 AM
Hi Jim looking for some tech advice regarding the 3072 controller Cards ...system all wired up and all seems to be working ok But But But and there's was always a but LOL:-) found out two things .. firstly my wiper motors ( all Three of em seem to work faster in one direction than the other ?? is this normal ) this happens when i directly connect the motors to a 12V car battery so it;s nothing to do with the Control wiring .. secondly there seems to be a power drop when driving the motors through the Controller cards. By This i mean when platform is driven by 12V battery direct to motors it seem a lot quicker and more powerful than when driven through the Controller card .. There is a high pitched whine coming from the K7032 control card s when activated and that seems to be from the MOSSFETs switching but i cnat explain the loss of Power ? also because the motors rotate at different speeds clockwise vs anti clockwise i cant seem to fine tune the return to center example when set somooth and ok for say roll right (Clockwise ) then it will be toooooooo slow or not move in the other direction ..if set higher then i end up with a rapid return to center which i figure aint right ... Tested the boards as per Kit instructions and seem to be fine . even built another kit from scratch to see if i had blown something but this exhibits the same Issues Any pointers ..as i remember you saying something about motor isolation ...

TronicGr
06-11-2007, 08:55 AM
Hi Calvin,

I know about the different rotation speed on the wiper motors, I already solved it by software limiting the higher speed so both are equal (but slower).

You should hear my setup whinning when it performs slow moves... :-)

Now about the loss of power... Have you checked the wiring? Does it gets hot? Since many amps needed to move the wiper motors maybe the power cables aren't sized to handle them. I had my power calbles changed three times cause I burnt them from overloading!!! :-D

I measured more than 12 amps of current on my setup while on quick manuevers. Even the new 20 amp rated power cable that I installed later gets hot!

But then perhaps the Controller cards you use, can't handle well the amps needed to move it.

Regards, Thanos

wannabeaflyer
06-11-2007, 06:36 PM
Hi Thanos glad to hear im not going mad LOL:-) i thiought i must be the only guy that could buy 3 motors from 3 seperate places and get 3 Duff ones ... many thanks for the Code it was imeadiatly seen on my system by the basic stamp emulator program so tommorow will get a print out and try to work out how you did it ... My syem at the moment may need re-working to take into account the different Speeds so some head scratching coming up .. Hoping Jim & Craig may have answers Becuase my Project is built around the information and ideas that they kindly let me use , so fingers crossed .Still trying to send you those pictures but e-mail keeps hanging up while sending ( maybe files too large ) still working on it for you Though. Will try and post some here and hopefully have better luck.. Cheers Again always nice when we get some info exchanged hope somon to be repaying the favour to you guys

wannabeaflyer
06-11-2007, 06:43 PM
D'oh forgot to the wire im using at the moment is 13amp household mains cable until i can get something better , i have not checked if this is getting hot but nose say's not burning LOL:-) no Blue Smoke and No Plastic Barbeque smells LOL:-) but next time she gets booted up will check closer and have a feel .. the Controller is rated at 20Amps so should be ok , i may have mentioned the only thing is the audible high pitched sound when the motors are loaded but have been told thats just the MOSSFETS doing their stuff ..

wannabeaflyer
06-11-2007, 06:49 PM
Hi Jim just a Plug for some info seem to be loosing power through the K7032 Controller card will be looking at the cableing next timeround but nither one is longer than 3 feet and shold be up to handling at least 10-13 amps Boards seem to test out ok sooo am a bit stumped as to what i've done wrong .. am using what i guess are standard wiper motors not sure of final output speed but looked quick enough in my FS2004 / Chcomm3a / Controll layout Testing but now want to beef things up to go to next stage ( My Lard Arse on the Platform ( Seems to chuck the 2 Volunter kids around ok so down to fine tuning :-)

wannabeaflyer
06-11-2007, 07:21 PM
Hi Thanos Picture [posted in screen shot gallery have a look see , Now that i know how to upload pic i'll do so with the rest

Jim NZ
06-12-2007, 04:04 AM
Hi Calvin, Great stuff,, you are now in the interesting stage ,,, believe me this stage (experimenting) never finish's and its great fun.

To answer your question about voltage and voltage drop etc....
Thanos is correct and wiring and terminals must be up to and preferably exceed the "starting under heavy load" condition,, anyway you are getting that under control.

1/ ... Make sure you have the wires that go to the motor coming directly off the mosfets as in diagram Fig. 9 on page 5 of your instruction sheet. If you have wired them as in Fig 10 you will have, basically a resistor in the circuit and a real weak point that will blow up one day.

2/... You mentioned about the voltage drop across the K3072 ,,, that is right and there is nothing you can do about it ,,, The mosfet when driven flat out will only be "on" 90% of the time and it will depend on what it is driving and how you are measuring it, you will get slightly different results... This 90% is mentioned in page 4 ,, bottom right hand corner.

3/... The different speeds from clockwise to anticlockwise ,, yes reasonably common in wiper motors but can be over come by balance/weight shuffling or electrically by having another relay to change the speed output of the K3072 (Craig done this to get his 2 speeds .. have a gander at his circuit diagrams to spot it.) another way is to just put springs on it to help the weak side or dampen the quick side... another trick is to use (thru a relay) the slow winding on the wiper motor to try to balance the different speeds,,, be careful here though>>> positively identify the common on the wiper motor.
If you get the wrong 2, then it draws a LOT of current and wont last long.

4/... Now the root of your problem !!! The voltage/speed of your setup .... Bring your voltage up to 18 DC and restrict the speed with the K3072's,, you will have far more power and you will be able to set the speed at what you want. A single wiper motor is "at its limit" with the weight it has to push around and of course you have the "voltage drop" across the K3072,, so all in all,, more "heebie geebies" are required and then control its speed.

Writing a book here !!! Hope this help Calvin ,,, get back if you need more.
Keep fiddling ... cheers .... Jim

wannabeaflyer
06-12-2007, 07:45 AM
Once again credit where credit is due thanks guys will have a look see later this week ... Gotta Keep the little lady happy or my arse is grass sim or no sim if you get my drift LOL:-) been pushing my luck here with the latest build blitz so its Chocolates and flowers time .... but as soon as pacified will be back in the hanger ;-) you guys made my day with your quick responses Brilliant stuff and food for thought

kjg71
06-12-2007, 12:49 PM
Hey Calvin,

Ha...I'm totally with you on the "little lady happy" thing.

...pretty easy to get consumed in the sim stuff.

Yep....you always have to remember to also add those few items to your bill of materials part list every now and then. Might as well make it #3 and 4 on list. :)

- 12V 32 amp power supply
- Fastening bolts
- boquet of Flowers
- box of chocolate covered cherrys
- 12V DC gear motor and chain/cable assembly
- bearing assembly
- Tension springs etc.

regards, Kyle

wannabeaflyer
06-13-2007, 07:36 AM
Cheers Kyle gonna show her this post so she knows im normal LOL :-) these things happen ..Dam forgot the cheeries D'oh :-)

CWFlightsim
08-10-2007, 05:09 PM
Hey Calvin, I am still alive and kicking, great work on the motion thing, your perseverance has paid off, now just enjoy your efforts!
PS My website has been updated
http://homepages.woosh.co.nz/cwarner/flightsim.htm

wannabeaflyer
08-11-2007, 04:38 AM
Hi Craig been a while good buddy . still messing about with our babies she is getting there bit by bit . been working at making an enclosure to improve the immersion effect so picture due soon as always . Been checking out Jims new ideas and Thanos as well somewhere in all of this there is teh next generation of drive and controllers so a lot of background research and redesigning going on ( in My Head at Least ) Damm boy do ever do things in Half measures LOL:-0 great updates on your website Niccccccce . Xe motion software downloaded agaes ago but not moved any further cos was not sure of what interface card you used to link the actuators to the software . i hjave enough computers and bit around to run most of my wexperiments on different rigs but space is a Bugger and i dare not try to move back into the big house LOL:-) ..Had alread Bought a Velleman K8055 USB kit and as luck would have it Jim is also doing some work based on that card so once again was in a good position to use another interfacing idea looking at the XE stuff this may well be the situation again so fingers crossed . Actuators still seem to be the main bug bear of my system but Roland has succesfully used Bungeies to Counteract balance and motor speed Problems so that may well be the way to Go . Glad your still at it Craig will e-mail ya soon Cheers