kb:proj:ftg:racing_simulator:start
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| + | ====== Racing Simulator ====== | ||
| + | ===== About ===== | ||
| + | |||
| + | This was my senior design project in college. I worked with a team with two other engineering students. We designed the platform together and then Heather wrote the reports, Garon did the fabrication, | ||
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| + | This is an ongoing project that we have continued to work on after college for fun. The V1 platform was completed for senior design. We helped a second group work on the V2 platform for their senior design. The V3 platform is currently under development. | ||
| + | |||
| + | ===== People ===== | ||
| + | |||
| + | * [[about: | ||
| + | * [[about: | ||
| + | * [[about: | ||
| + | |||
| + | ===== Design History ===== | ||
| + | |||
| + | |||
| + | ==== V1 ==== | ||
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| + | We did this project over two semesters. The first semester we designed the Stewart platform. The second semester was a mad dash to fabricate and integrate the electronics into the platform. We finished with just enough time left over to powder coat the machine and give it a professional finish. | ||
| + | |||
| + | === Links === | ||
| + | |||
| + | * [[https:// | ||
| + | * [[https:// | ||
| + | |||
| + | ==== V2 ==== | ||
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| + | This revision of the platform increased the diameter of the cockpit to allow for more range of motion. We allowed a second group of seniors from Montana Tech to use our platform as the basis of their senior deign project. During some testing we had a serious machine crash that did a lot of mechanical and electrical damage leaving the simulator dead. We bent several heim joints, creased some spacers, damaged at least one of the gearboxes, and burnt out the hand wired control board. It is hard to estimate the total value of the damage done, but it was a several thousand dollar setback in time and hardware. | ||
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| + | ==== V3 ==== | ||
| + | |||
| + | In the aftermath of the crash, we replaced the burnt out control board with an off the shelf controller that had been released in the meantime. We also added movement compensation by adding a reference frame to the platform itself. This subtracts the motion of the platform from the motion of the VR headset so that the motions of the platform do not interfere with the view in the cockpit. The implementation of this is still pretty janky and is not well integrated so it only worked intermittently. The final change we made was moving the electronics from the base enclosure to an external enclosure so that it was easier/ | ||
| + | |||
| + | ==== V4 ==== | ||
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| + | This is a complete redesign of the platform. We are changing the geometry completely to allow for more optimal range of motion. We are redesigning the cockpit so that it can be detached and used off of the simulator without having to dismount all of the control hardware. I am redoing all of the electronics to be more up to industry standards for safety. | ||
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| + | Due to our time crunch on the first design, we spent most of our time just learning how the mechanics of a Stewart platform worked and did not have much time for optimization. Other than a few 3D printed test models, we had little understanding of the system constrains. This caused some sub-optimal design decisions that limited the platform' | ||
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| + | We also wanted to make several quality of life improvements. Previously we have been switching between two cockpits, one mounted on the floor and one on the platform. This allows testing the platform without having to withstand being shaken by poorly tuned profiles. This was a tedious process of moving hardware between the two cockpits. The new version will have a single cockpit that can be easily removed while keeping the platform it running condition. | ||
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| + | The final change we wanted to make was increasing the size of the electronics enclosure to allow for better ventilation and room to add components in the future. The current enclosure is very tight and has poor ventilation. | ||
| + | |||
| + | ===== Theory ===== | ||
| + | |||
| + | * [[kb: | ||
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