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RPM Based Variable Timing Offset

uploaded by Roycehellion 9 months ago


This is something a lot of people have talked about making. This uses a helical gear and RPMs to move a sliding "gear" ( you can also run an actual gear for this if you want, but the rollers work well for the first draft) along the helical gear to achieve an offset.

It can be compressed for those who want to use it for their engines and there are a few ways to make it. I modeled this off the MIVEC valve train running in the 6G72 engine in my car.

1,2,3 to change speeds, they each toggle so you press them in order.

The spring causes it to bounce some, but with a load it wont do that as much. The sharper you make the helical gear, the less it will try to function as a worm drive.

Enjoy!
posted by Dzytizz 9 months ago
Nice idea making that "system" using small wheels and helical gear ^^
posted by Roycehellion 9 months ago
thanks Dzy! :)
posted by oziboy 9 months ago
Cool system, I can't believe I haven't thought about using cogs for worm drive yet

Automatizing this with the same system of a centrifugal tacho would make a dynamic VTEC! hahaha
posted by Roycehellion 9 months ago
i tried as a worm, even with braes they slip under load. :/
im still playing with that. this does work well on cannon drive, but its still a probelm of timing the flame long enough at high rpm to ignite the cannon. Since they are particles, not a real flame. I have a fix for that. High RPM variable valve timing engine is on its way.
posted by oziboy 9 months ago
Oh boy oh boy, VVT-I on it's way hahaha

I'm going to mess with worm drive and rack/pinion a bit too, they're kinda useful but I kind of want to fit one in a car base with full suspension and stuff

You know, as preparation for when I or someone else makes an engine that suits it best (by size/power of course)

Then a CVT of some sorts

I don't know about you guys but I have to use an angle for my cannons, they like to shoot through the armor plates and gets stuck, which really messes up the firing and sometimes even manages to get the piston out of sync