Tarmo4 20A Steering Center Link for metal steering rods

thingiverse

Want an improved turn radius and improved control? Your printed steering rod balljoints have too much free travel therefore both wasting servo movement and allowing wheels travel freely independent from each other (instability). Watch how it works: https://www.youtube.com/watch?v=NUm1OtEFY_E Metal balljoints can be helpful here. You could add them to your existing center link but that will require something to space them out (well, changing the height using spacers is one way to adjust bumpsteer, but in the current geometry even the lowest position isn't low enough, so why bother at all). I've decided to redesign the center link for metal links as an exercise for future experiments with ackerman and increase of steering angle. So there you go - a version of center link that uses: • 2 x 12mm M3 bolts • 2 x M3 nuts • 2 x 65mm long M3 rods • 4 x metal balljoints for M3 (both rod & bolt). If you're building a tarmo V4, you need 3mm steel rod anyways. And you're using at least a couple balljoints to connect the servo to your steering link. If you're like me, you order several times more small stuff than you need - just in case you'll need to replace it or figure out a way to use them somewhere else. So, in theory, you should already have everything you need.