im in

I made mine but the mass and motors are wrong I'm kind of confused and need a calculator but one question about the weight 1-1.7tons, do you mean that in mass or density?

Too many technical cheats fits with riles. You need to specify more details.
For example:
Collision groups and rules to prevent "hidden" mass
Motors count.
No initial speed
No other boosters
etc

so is a rocket propelled car allowed ?

What about alternate engines?  I could build a really easy negative-damping engine and tear across the desert with unheard-of speed, or I could build a collision-changing engine with tons of power.  Will you allow them to encourage innovation, or would constructing an uber-engine to blow over the course not be in the spirit of the competition?

I'm going to just assume that you won't let us use that one motor to make a flight-capable density propeller...

EDIT: also, are you aware of how tough your motor settings are?  Have you built a car to those specifications?  It's pretty wimpy.  I can probably do it, but making it simply get over a hill is a challenge on its own.

EDIT 2:  Found a work-around involving hinge strength calculations.  Now I can get over the hill within specs and finish in nine seconds, will continue modifying and improving.

Last edited by Frank (2009-08-27 18:05:27)

frank you could make something that flys he never says you cant

RA2lover wrote:

gearing ftw?

No, gearing FTL.  Gears have serious limitations on how much power they can transfer and how fast they can go.  I don't use them and probably never will until Phun's collisions get better  That would need either some very complicated math or much higher hertz in the simulation, neither of which appears to be close on its way.

Oh yeah, and I'm down to eight under seven seconds on my prototype, but now it has external non-colliding parts.  Are they allowed?

And are these motor settings per wheel, or do we only get one motor?

Last edited by Frank (2009-08-27 18:45:04)

Frank wrote:

RA2lover wrote:

gearing ftw?

No, gearing FTL.  Gears have serious limitations on how much power they can transfer and how fast they can go.  I don't use them and probably never will until Phun's collisions get better  That would need either some very complicated math or much higher hertz in the simulation, neither of which appears to be close on its way.

Oh yeah, and I'm down to eight under seven seconds on my prototype, but now it has external non-colliding parts.  Are they allowed?

And are these motor settings per wheel, or do we only get one motor?

circled gears FTW?

RA2lover wrote:

circled gears FTW?

When I can't get around using gears, high-friction circles are the way I go.  They sometimes try to explode due to the new hinge solver in version 5, but otherwise work very nicely at any speed.

thewonkits wrote:

"Wheel and object that is attached to it with hinge must have a combined mass of 50 (+2 kg)  (for realism)"

Does that include the entire wheel apparatus (suspension included), or just the wheel and the immediate object it's attached to?

For that matter, does it include any objects those objects might be fixated to?  Motor strength is determined by the whole fixated groups, not individual pieces.

Author: Torpedo
Title: phun rally contest entry
File Size: 35.55 kB
Rating:


Adjustable front end geometry too, adjust the spring length under it.

wanted to make something a bit different!

EDIT : I've updated my entry now to have just the two motors instead of the three it had before - i admit it was a sneaky loophole (made before the post above it lol) but i couldnt figure out how to get it to go up any other way, now I've got it sorted.

Last edited by Torpedo (2009-08-28 20:02:21)

entry is now updated to two hinges. does sub 13 seconds now.

Not amazing but very hard with these motor specs lol