|
|
Post by mhensen on Nov 3, 2014 13:54:03 GMT
Very cool Stevant,
As I want to build me one too, I wondered if you can feel the gearchanges and the roadtexture .. trying to find out if you can feel subtle things.
You have some great motion!! with that kind of motion I would gladly trade off some off the motion towards more resolution..
I would only use it for racing, flying I do with a praglider, but not on the PC :-)
Also love the way you approached the project being no welder of steel worker.. Gives me hope that I would be able to accomplish something like your rig!!
With kind regards,
Michael
|
|
|
|
Post by stevant on Nov 3, 2014 19:46:15 GMT
Hey Mike, You do feel the gear changes and you feel the braking when you hit them hard, you lunge forward. As for the the sensation of the pavement, thats where the Butt-kicker "kicks" in. If you don't have one I recommend getting it as it's exactly what you need to feel the pavement. When flying, as soon as you lift off the ground you know it and when landing you feel the impact with the Butt-kicker. The sound/vibration along with the motion work hand in hand. Let me know if you have any questions on your build. I'm no expert but have learned a lot. The wood is a great alternative to the steel. These gear boxes work well as they have mounting holes on top so I was able to tie in the tops of the gearboxes together on each side and on the adjacent ones. Good luck.........it's a great accomplishment when your done!! The guys on this forum are all great people, willing to help and share their ideas.  Sincerely, Steve |
|
|
|
Post by tronicgr on Nov 4, 2014 2:24:18 GMT
Hi Vic, I just removed the private setting from the video. Sorry about that. Not sure why is was on. Take a look if you like now. Thanos, Vic brings up a point in regard to the VFD. Do you know if the Hitachi WJ200 has that feature and maybe you can tell me where to find it to disable?? Thanks to all as always!! Steve I don't remember seeing any option Iike this in the manual... ill look again... |
|
|
|
Post by stevant on Nov 4, 2014 3:53:40 GMT
I'm in the process of completing some of the "finishing" on the platform. I attached some photos showing what I've done. Still need to get the mount for the monitors. The seat in the photo is the seat I'll be using. I'm looking forward to hooking up my gaming computer as I'm sure it will provide an even smoother platform due to the faster processor. Thank you Thanos for looking into the Hitachi VFD. Your suggestion on increasing F002 and F003, Accel and Decel??
  
|
|
|
|
Post by stevant on Nov 4, 2014 3:55:03 GMT
|
|
|
|
Post by stevant on Nov 4, 2014 4:00:32 GMT
A few more......
 
|
|
|
|
Post by vicpopo on Nov 4, 2014 6:06:08 GMT
Hi Stevant ,
Very good finishing !! I like your black arm very profesional! Did you have some details from them ?
I suppose how you made them but I'm not sure .Your rods ends are male and they screwed into the arm , wherein before you welded a threaded piece on both sides?
|
|
|
|
Post by stevant on Nov 4, 2014 11:56:06 GMT
Hi Vic, The metal I used for the rods is 1-1/2 I.D. Tubing. It looks heavier in weight than it is. It is very strong of course. I built them like a tie-rod on a car. The female threads you are referring too are called a "bung" which weld into each side of the tubing to accept the male ball joint. One side is a left thread and one is right thread. Adjustment to length is much easier that way. Once you loosen the locking nut on both sides you can simply twist the rod clockwise or counter clockwise depending on what you are looking to do, lengthen or shorten. The opposing threads make it easy to adjust without having to remove the ball joint from the mount. Once your done you lock it in with the locking nut. I also painted them with Rustoleum oil based gloss black paint. I used a small sponge roller, very smooth finish. No brush marks. I used a large ball joint, 1-1/4, to handle a larger bolt to secure to the platform and the gearbox arm. The spacer in each side of the ball joint reducers the diameter to 3/4" but increases the movement from 17 degrees to as much as 30 degrees. I know a smaller one would have worked as I see most have used them but I figured the larger the ball, the smoother the motion, plus added security of strength. I hope I answered your question. Steve |
|
|
|
Post by vicpopo on Nov 4, 2014 17:42:06 GMT
Hi Stevant ,
Thanks for your answer.Yes you did it !
Just one precision about the angle you achieved to increase from 17 ° to 30°.Could you make a picture ?
Regards
|
|
|
|
Post by stevant on Nov 4, 2014 19:50:35 GMT
Hi Stevant , Thanks for your answer.Yes you did it ! Just one precision about the angle you achieved to increase from 17 ° to 30°.Could you make a picture ? Regards If you notice the gold extension on the ball itself, that is the offset. Thats increases the rotation of the ball which of course will increase the angle of the movement.  |
|
|
|
Post by vicpopo on Nov 4, 2014 21:09:30 GMT
Thanks , I remember I already looked at this on x-sim forum.
Who made this , you ? Or you bought them some where ?
Regards
|
|
|
|
Post by stevant on Nov 4, 2014 21:49:56 GMT
I purchased them from a company out west in the U.S. I found them on E-bay.
|
|
|
|
Post by vicpopo on Nov 4, 2014 22:49:19 GMT
May be a link for ebay or the name for research ?
|
|
|
|
Post by stevant on Nov 5, 2014 20:25:48 GMT
I'll try to find who it was Vic. Ill check my E-bay account.
On another note, I decided to bolt my platform to my basement floor via concrete anchors. Fortunately I can and let me say what a difference it made. Reduced almost all if not all vibration. I'll post a pic when I can of the mounts. Reduced some of my movement in the platorm as it seemed a bit much for driving. I'll make a better determination once my monitors are mounted to see what works best for me.
Thanks,
Stevant
|
|
sagrada
New Member
Hello All... I'm in the process of building a 6dof Motin Platform to support my full-scale 737 Sim.
Posts: 43 
|
Post by sagrada on Nov 8, 2014 1:34:48 GMT
Hello Stevant,
I'm new to the forum, and have been encouraged by Thanos to become more involved regarding 6dof motion platform projects.
A short introduction... I am currently building a full-scale B737-800 flight Sim. My Sim project is now completely operational, but not fully packaged as I am currently seriously building a 6dof motion platform that can handle the 1,800 lbs. of mass, which represents the Sim Module. I have been testing the BFF 6dof motion software with Thanos' AMC1280usb Controller, interfaced to a Hatichi WJ-200 VFD. I'm driving a 1.5 HP AC motor bolted to a high-torque double-reduction gearbox (160:1 ratio @ 8,000 in-lbs of torque at the output shaft). I'm testing a 6" lever radius acting on the actuator rods. This testing is currently for only one segment of the 6dof. My Sim uses FSX for the sim system, and I'm using Sim-Avionics for the 737 flight model.
Thus far, I have had the same issues with VFD errors due to too low accelerate/decel settings., eg.. 0.15 sec. I am now using 1.20 sec acceleration, and 1.00 seconds deceleration, which seems to work fine, while still providing good response times. However, I am greatly interested in how I can improve on these VFD settings, eg. The auto tune that you mentioned, etc. Also, I am interested in the best settings to use for the AMC1280 controller, which at this point is still a bit confusing to me.
Anyway... I'm looking forward to coming up to speed with what others are doing with VFDs in a similar application. Fortunately, the 737 flight characteristics do not require extremely fast and abrupt responses from the systems to achieve the motion effect needed.
In this regard, I believe the biggest challenge is fine-tuning the BFF motion cues properly. To sync the movements accurately to the flight model without inducing Sim sickness. This is a fairly significant issue, as the flight deck is totally enclosed by the Nose Section, without outside references, except that of the FSX surround display as seen through the cockpit windows.
Any comments on VFDS settings would be appreciated. Thanks.
Mike
|
|
