Recent content by Tiago Carita

Once again Thank you. It has been a wonderfull help TC

Sorry to bother you Dr, Courtney, I was just wanting a help/advice on the last calculations I've made. If they are OK to the probable circumstances I’ve enunciated. Thank you Tiago Carita

From what I’ve learn on this thread let's see if i got it. The assumptions can be subjective and the worst case possible is total rigidity of the rider and the fall on one wheel and that the compression/dampening would be fully used on that wheel before any other wheel touches down Total mass...

True its more probable to hit with the front wheels and not at the same time. I thought dimensioning the parts would be simpler... I have a knee injury because I’ve not bent my knees on an accident, o I should know better. To be closer to reality I should assume then the rigidity of the rider...

Gathering some of the information I reached to this average peak force if no bottoming out occurs. I’ve assumed that the wheels rubber and springs compress 3cms and that since I have 3 contact points, I could divide the peek force by 3 and apply individually in each. Then I will use this force...

unfortunately the scooter will have an hard body shell but that idea crossed my mind i just did not heve enought knoledge to even try it, springs i think i can dimension.

That way i can place the shock at the bottom of the frame and get a litle bit of space on top for things...

True, and i have lots of doubts in many things, someone mentioned the geometry of a three wheeled vehicle as a really complicated design, specialy if somebody decided just because... I think the Corona gives us time to thing about it i will gather as much ammo i can to push this in the right...

Maybe the drawing is not clear ... (1) represents the axis that are fixed. This suspention is the smalest i could find on market and work a bit diferent, not sure the name but insted of compressing you expand the connection nd the end rod compresses the spring

Hi Bekerman. The project is full of maniac constrains, let me give you some insights, I'm not sure what i can show... The scooter must stand on its own because it could be remote controlled or assisted. It should have 3 wheels because there are many people are afraid of 2 wheels (i proposed 4...

So if after getting the average force*2 or *3 would be a good starting point to dimension parts before road testing?

Well once again a very sound advice, one that I actually talked about with project owners, not with all this detail. It's indeed a bit discouraging, since the requirements added to much constrains and a lot of moving parts things not easy to design specially for strength.Thank you

That is a valueble and scary information :-/ Where could I learn more about the Geometry refered? It would be diferent if it had 4 wheels? Its very small scooter, from the requirements, we have to use booth feets side by side and in the prototypes there are inbalances and one needs to learn not...

It is not a requirement, it was me just trying to protect the scooter from minir acidents...

Hi Guys, first things first I’m Tiago -= Introduction to my Many questions =- I work as Inventor in several projects of small scale, doing mechanisms, 3d printing, or building them cutting, welding, using my Lathe or sending to laser cut, bending or (when lucky) sending to a local CNC, I design...