higgy
New Member
Posts: 21
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Post by higgy on Jan 6, 2017 16:00:09 GMT
Hello everbody , I am Higgy from Germany ... i want to start a Project with motion platform. 2 or 3 questions . I have a rel. fast computer with Win7 / 64, pedals, some Sims (mainly aviation) rudderpedals, and thrustmaster-stick and an Oculus Rift. Now I am at superior what I build, metal construction no problem, WIG welding + stainless steel + alu material etc. is here, electronics also no problem .
Now to the question, which real advantages justify the immense multiple of 2, 3 or even 4..6 DOF for a flight in the Motion platform?
I think this is really enought what i Need, and relative easy to make ?
www.youtube.com/watch?v=VvBojB_RUBA
I Need a platform in this Speed in Video , which can power up about 200 -250 kg Since I'd rather always build something massive with the engines? :
Mmm. Www.hec-motors.com/heart-wheels-Fa--Nord/Steelwheels-Fabrics-Gear-Construction-Nord/Gearwheel-SK072-172-of-the-company-built-built-nord-206-207-208-209-210-211.html
Or are them not good for Motion sim ? Great would be in germany is here ...someone Close by... with a similar setup that I could test, I would offer to fly to him and spend n round trip flight
Mfg Higgy
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johann
Junior Member
Posts: 57
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Post by johann on Jan 6, 2017 17:03:15 GMT
Hi Higgy, welcome inside this forum. I’m a beginner like you and also from Germany (BW). I started to build up a flight simulator as well 3 years ago. I believed it would be easy to do it with my one construction, my one software based on VB6 and a Raspberry Pi to steer the motors. What should I say? At the end it didn’t work becaus the software was to slow. For my mechanics I used, see picture. To use aluminium parts is one of the best decissions I did. It's easy to handle and also flexible. Most of the parts I can use for my new simulator now. For the new one I ordered the Thanos board AMC1280USB and Ian’s BBF software. I’m in a good mood that I’ll have more successes for my new flight simulator project. I decided to build up a 6 DOF simulator to get almost a real reeling of flying a plane. All what I have seen at YouTube about 6 DOF simulators is brilliant. In between I build up also a 1:10 model to get experience with Thanos board and I'm realy satisfied with it, see the other picture. There is also a new beginner like us named David. Please have a look to his posts and all the others poeple. You can find lots of interesting information’s there. Here is the link to David’s thread: motionsim.freeforums.net/thread/241/6dof-flight-build-motor-sizingIn this case good luck … Johann P.S. Higgy are you also from rc-sim.de forum?
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higgy
New Member
Posts: 21
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Post by higgy on Jan 6, 2017 18:23:07 GMT
Hi Higgy, Johann P.S. Higgy are you also from rc-sim.de forum? Hallo Johann, tnx ...
yes, thats right
small world ? ! Kannste mir deine mailadresse senden ?
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higgy
New Member
Posts: 21
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Post by higgy on Jan 6, 2017 18:45:00 GMT
But this links / threads looks like everyone wants a 6dof ? I ask me ...
is this to much for me ? What are the really advantages from a 6dof to a 3dof like this simple platform ?
www.youtube.com/watch?v=VvBojB_RUBA ( simple in building /planing , not money ...but who needs at home 750 kg payload ) )
do you really use (feel) the left right drift motion ? justify this the more work / money / motors / mechanics ?
Best for me is a link to an 230 V motor/engine/system .... 150-300,- each .. and the link to a good controller and also to the software..... for a payload of 220 kg 3dof platform . I dont know what i can buy to reach this. ( idont want to give 8000,- for such a system. ) but i want to give 300 , before a 250,- motor is 90% at/over the limit ..so best will be an motor /system which is only 50 % in use all the time .
Did someone use something ? that was my goal Johan, yours look like a 3 dof ?
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johann
Junior Member
Posts: 57
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Post by johann on Jan 7, 2017 9:41:08 GMT
Hi Higgy,
I've sent a message to your account. Please have a look at it.
Regards Johann
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gokhan
Junior Member
Posts: 89
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Post by gokhan on Jan 7, 2017 12:24:08 GMT
Hi Higgy,
I would like to share my opinion with you.
First of all, I am not an expert in building sim platforms but I am building a 6DOF myself. I am a pilot and electronics engineer though.
So to comment on your question "is it worth going for 6dof instead of 3dof?" depends on what you exactly want to with it.
If you want to fly small, maneuvrable, acrobatic aircraft then you need 6dof. There are certain moves that require sway, surge moves to feel it like side slips, skids, coordinated turns.
If you want to play games, or to experience airlines, fighter jets then no need to go 6dof. For the airliners and the fighters anyhow the models are far from exact so I don't see point of having 6dof complexity. For the games 6dof may make a big difference but does it worth that is a question you need to find out yourself I guess.
best of luck and success
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Post by Trip Rodriguez on Jan 7, 2017 12:48:20 GMT
Higgy, I had an internet friend tell me when I was just starting a 3DOF build that for flight sims anything less than 6DOF is just a novelty. It cost me a lot more money but I am happy I took his advice. If you have the room and can manage the finances for a 6DOF Stewart platform I think it is the way to go! Here is my nearly complete sim in action: www.youtube.com/watch?v=piiN3cZw5xY
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higgy
New Member
Posts: 21
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Post by higgy on Jan 7, 2017 14:40:04 GMT
Thanks to both replys , i understand now some things better
the biggest Problem is my space here ..so had to think about it how to do it
NICE FORUM !
Trip Rodriguez can you give me a link where to buy the Motors and converters , and my platform had be be a Little bigger, do you think it can power up with this components to 200-230 kg complete ?
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higgy
New Member
Posts: 21
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Post by higgy on Jan 7, 2017 14:54:24 GMT
I see your vids ...i think 6dof is the must have
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Post by Trip Rodriguez on Jan 7, 2017 16:02:43 GMT
I can give you some links: First there is the decision of what kind of rig to build. AC will generally give best performance for moderate cost but the one thing nobody told me is that the AC drives make high pitch/frequency noise that drives wives crazy! Doesn't bother me any but wife hates it! Here is where I started, I bought these exact motors, gearboxes, and inverters: motionsim.blogspot.com/2013/05/6dof-platform-photo.htmlUse this thread for the blueprints and help setting up the VFD's motionsim.freeforums.net/thread/176/dof-step-diy-project-blueprintsIf you get to where you have questions post on my build thread and I should see it and reply. I'm considering making a new more concise "how-to" thread. Maybe I'll start working on that as it should help you a lot.
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Post by Trip Rodriguez on Jan 7, 2017 16:13:09 GMT
Higgy just saw your question about capacity. I think I read that with these components expect ~300KG capacity including rider. I can't remember where I saw that so take it with a grain of salt as they say!
I weigh 180 pounds and my platform is probably 160 pounds total and my motors barely even get warm and can move much faster than wanted. Only way you might run into capacity problems is fully enclosed cockpit, an aluminum based fighter sized cockpit should be fine if kept light. Airliner cockpit or using heavier materials probably a no-go.
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johann
Junior Member
Posts: 57
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Post by johann on Jan 7, 2017 16:40:10 GMT
Hi friends,
I've a question to the frequency nois. Will it reduced when the VFD inverter is much bigger as you need for the motor?
Thanks Johann
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higgy
New Member
Posts: 21
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Post by higgy on Jan 7, 2017 16:55:22 GMT
puhh ...so roughly about 3500,- only for the 6 Motors with gearboxes and converters... I think again about a 3dof
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Post by wannabeaflyer on Jan 7, 2017 18:26:15 GMT
Check out my 6DOF motion platforms using DIY 12Vdc linear actuators on the Xsimulator . net forum , my simulator uses Thanos;s AMCusb126 controller and Dimension engineering 2X 32 Sabertooth DC motor controllers , also Check Craig;s 12DC motion platform here on this forum , this approach will not cost as much as the AC motor / Gearbox route but show great promise and no major tech skills required ... look at it asa n option outside the AC option ...our chosen hobby will never be cheap but this option make it viable on smaller scale
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higgy
New Member
Posts: 21
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Post by higgy on Jan 14, 2017 17:17:05 GMT
I have finished now my reflections, will make a 3 DOF with 3 24V-DC 800 Watt 3000 rpm -> 50 rpm wormgear motors. mechanics rough like this : www.youtube.com/watch?v=020LcYembWII buy it in China, now I think about the software and electric. Would do you think is your previous opinion, which hardware and software for controlling / connect to my PC ( Win7 (64) ( with several flight sims ) would you use ?
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