jenrick
April 11, 2025, 10:31pm
1731
I built the 737 DIYSim cyclic (https://www.737diysim.com/product-page/heli-cyclic-stl-cad-files ) , specifically to address this problem.
It works very well for what it is, but I do wish there was a hair less free play in the gears. Ironically it’s using the high precision rotary HES that allows for the little bit of play to be detected and used as stick movement.
Here is a video of things working as designed. It starts with the force trim disconnect switch pressed which allows the axises to move freely. Then the switch is released so now the springs are constraining moving it from the trimmed position. Then we use the beep trim to trim back to release pressure, then we move stick left, and trim left to release pressure. Finally, just trimming it around a bit, followed by pressing the force trim deactivation switch again to move it freely.
July 5, 2024
I have the beep trim set extremely slow (about 20-30 seconds end to end) to give me time to either hit the force trim disconnect or the power switch if something untoward happened. It’s an easy adjustment to change, though I have zero clue what an accurate speed is. Also, with the extension length on it currently, the range of motion is way too large for most aircraft as I have about ~2’/~60cmof movement in each direction reach now.
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