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Just a thought, but could you heat treat your entire structure after welding it up? If you keep it in the fixture during heat treat, it would probably be OK.

Thanks. My thoughts were trending that way, but our casting shop was pushing 535. I've been thinking of doing some geometry changes and going all the way to a Magnesium alloy. I'd hope for some vibration reduction in addition to the weight savings. Any thoughts on using Magnesium for a...

We build FIA race cars and are trying to get stronger suspension uprights(knuckles). This is a fatigue-loaded part. We are currently using A356. Our casting foundry has suggested using AlMag 535 because of the superior elongation and slight weight reduction. The weight reduction would be...

The high front RC does contribute to the immediate turn-in. The tires leaning into the corner slightly also helps (camber thrust into the corner vs out of the corner on other setups). A high front RC will typically make the car feel like it's rolling onto it's rear. We've compensated for that...

Our third patent issued a month ago. It applies to the concern GraviMan has about arm length. Note that there are some 'trade secrets' that work in conjunction with the new method of Link-X. We use arms that are similar in length to a traditional SLA, but still exist on the same planes as...

Ahhh the dreaded swing arm! Link-X has a high roll center like a swing arm, but the similarities end there. We have less camber gain, ability to build-in a The most important difference is that the Link-X roll center doesn't migrate. A swing arm's roll center moves up as the wheels droop -...

GraviMan, The lateral motion that you're talking about is not near as large as you're envisioning because the instant center of rotation moves up with the tire. Load-based toe change in the case of my suspension means that upon an impact on the front of the tire, the bushings are designed to...

I presented a SAE 'small engine' paper on our ATV work, but haven't presented anything to the big SAE Congress. I didn't remove the original thread. I guess it just went unused for too long. Mostly the same questions came up, though. About a year ago we looked at Graviman's idea of a...

The Prodrive guys are actually working with a firm that builds Dakar rally-type vehicles. The fact that Link-X makes sway bars obsolete is very appealing for the very reason you mention...most inputs are single-wheel. If I remember correctly, they said the 'cross axis' stiffness is very low...

Good question. The only vehicle that we have applied Link-X to in this way was an ATV. It completely transformed it and actually made it easier to handle, you could just drive it like a car instead of leaning all over the place. It took most of the 'fear of death' factor out of riding an ATV...

Hi, I'm working on engineering an airbrake for a vehicle similar to what is on the new McLauren. I want a simple, lightweight controller for two 12v actuators. The controller will move both actuators [in lock-step with each other] over 100mm once a pressure sensor reads x psi. Once that...

Hi All, I'm the inventor of Link-X. I'm a mechanical engineer and have invented several manufacturing processes. When I invented this suspension for my solo car, I didn't know that much about suspensions in general. If I had, I probably wouldn't have pursued it! You are right about the fact...