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Post by capacitor on Sept 27, 2015 4:52:26 GMT
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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
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Post by sagrada on Sept 27, 2015 11:30:59 GMT
Hello Zhu,
Congratulations on the start of your 6dof Motion Platform Project! I can guarantee to you that this will be one of the most exciting and rewarding projects you could undertake. From my experience thus far with my own 6dof motion platform project, your choice of the BFF 6dof motion software and Thanos's AMC1280usb controller will yield great results.
From your CAD model, it looks as though your are planning to test the concept using a scale model servo setup. If that is the case, it is a good start, as you can easily test both the BFF and Thanos systems. When I first began 6dof testing, I made my model at 1/8" scale, which was a good size for the small Hi-Tech servos (50 oz.in. torque). That model yielded a lot of useful information and allowed me to easily experiment with the various motion cues generated from the BFF motion software, as well as getting familiar with the AMC1280usb controller settings.
Best wishes with your project. This is a good place to share ideas.
Regards, Mike
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Post by clyevo on Sept 27, 2015 12:28:19 GMT
The arm must be 90 degree with the motor shaft and platform shaft and it is recommended to have gearbox facing inside instead of outside for stability
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Post by paulg100 on Sept 27, 2015 18:17:14 GMT
great start, as im in the early stages of starting my own i look forward to updates
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Post by tronicgr on Sept 27, 2015 19:49:15 GMT
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Post by capacitor on Sept 28, 2015 23:03:02 GMT
The arm must be 90 degree with the motor shaft and platform shaft and it is recommended to have gearbox facing inside instead of outside for stability Do you mean the surface which build by the arm should be 90 degree with the up and down surface, like the GREEN surface in the pic? Is there any benefit of that? The configration of the RED one is a dead way?
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Post by capacitor on Sept 28, 2015 23:33:39 GMT
Hello Zhu, Congratulations on the start of your 6dof Motion Platform Project! I can guarantee to you that this will be one of the most exciting and rewarding projects you could undertake. From my experience thus far with my own 6dof motion platform project, your choice of the BFF 6dof motion software and Thanos's AMC1280usb controller will yield great results. From your CAD model, it looks as though your are planning to test the concept using a scale model servo setup. If that is the case, it is a good start, as you can easily test both the BFF and Thanos systems. When I first began 6dof testing, I made my model at 1/8" scale, which was a good size for the small Hi-Tech servos (50 oz.in. torque). That model yielded a lot of useful information and allowed me to easily experiment with the various motion cues generated from the BFF motion software, as well as getting familiar with the AMC1280usb controller settings. Best wishes with your project. This is a good place to share ideas. Regards, Mike Thanks for your guide. Yes I am going to build a scale model to yield information. There are so many parameters need to be learn. One of things I don't understand is the BFF give a model 3 points on the upper platform, but no 6 points model. The output of 3 points model can be used on 6 points platform directly? Regards Zhu
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Post by clyevo on Sept 29, 2015 6:42:58 GMT
The arm must be 90 degree with the motor shaft and platform shaft and it is recommended to have gearbox facing inside instead of outside for stability Do you mean the surface which build by the arm should be 90 degree with the up and down surface, like the GREEN surface in the pic? Is there any benefit of that? The configration of the RED one is a dead way? The green one is correct
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Post by capacitor on Oct 4, 2015 1:26:36 GMT
Update
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Post by capacitor on Oct 4, 2015 2:04:48 GMT
bffsimulation.com/Manual-6DOF/Settings.phpI am learning the configuration of BFF driver, but I am confuse about the parameters. Waht I comprehend is: 1. Rad_b==R_red //R_red refference in following pic 2. Rad_u==R_green //R_green refference in following pic 3. Ang_Sub==Alpha_01//Alpha_01 refference in following pic Is that correct?
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Post by clyevo on Oct 5, 2015 2:32:23 GMT
In your design the the two adjacent joint (1 and 2, 3 and 4, 5 and 6) should be as close as possible about 50-80cm. The simulator see this two joint as one, so if too far the movement with be a bit off.
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Post by capacitor on Oct 5, 2015 9:39:07 GMT
In your design the the two adjacent joint (1 and 2, 3 and 4, 5 and 6) should be as close as possible about 50-80cm. The simulator see this two joint as one, so if too far the movement with be a bit off. Wow~~ It is really important information to me, thanks a lot! I had always thought adjacent joint are 2 points, and confusing why the BFF only confige 3 points instead of 6 points.
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Post by clyevo on Oct 6, 2015 1:59:42 GMT
In your design the the two adjacent joint (1 and 2, 3 and 4, 5 and 6) should be as close as possible about 50-80cm. The simulator see this two joint as one, so if too far the movement with be a bit off. sorry i meant 50mm-80mm not 50cm-80cm
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Post by Mitch on Oct 6, 2015 3:39:33 GMT
Make sure arms are in mid stroke, rad_b is your blue circle, rad_u is your green circle. I clarified rad_b with Ian when I was setting mine up. I believe ang_sub is similar to what you have, but instead of intersecting gearbox use the rod ends on the blue circle.
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Post by capacitor on Oct 6, 2015 10:49:36 GMT
update
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