How do you script something so that when its touching, var=1, and when it stops touching, var=0?
I've done it before, but when I tried it again, it didn't work. Even reverse engineering the one that did work, didn't work. I'm very confused at this point and scripting has stumped me again.
This is what worked:
in OnTouch;
setVar("left_easy",1)
in OnTick;
setVar("left_easy",0)
and what didn't work:
in OnTouch;
setVar("thrust",1)
in OnTick;
setVar("thrust",0)
In versions 2+3, the "default" shape is a box. If you want to make gears, you have to make each tooth a convex hull and group them together.
Thank you, have another.
I figured out the scripted joints (big for me) to the point where I used universal joints for the bogies and you can copy more cars to the train, but the problem is I had to daisychain the joints under the cars so much the sag makes the cars lean in turns. Just beware of derails, they seem to be quite frequent...
If anyone can figure out a way around this, that would be great.
My suggestions are:
-don't let each axle turn independently, if a wheel catches it torques around really bad. And its less realistic.
-don't have the ends of the rails beveled, it gives the wheels something to catch on (counter intuitive I know).
-use a simpler model to get everything right. You can use the same dimensions without eating up RAM and your video card.
Also why is the engine articulated behind the cab?
Sorry I don't have much to add, but there are a few things. I'm no programmer, I'm on the mechanical team.
You guys are blowing my mind. Wacov, when I opened your cloth file my jaw dropped for so long I almost drooled on my cat.
@unknownuser said:
Can we upload with this version if we don't use the new features?
That particular script sends the servo into a progressive death spin, however the @myPos should prove very useful.
My computer & game design teacher and robotics coach (all the same guy) convinced me (signed me up) to teach a sketchyphysics class/ workshop and I wanted some input about what I should teach, since SP has become more of a community than a program anymore.
Stuff about SketchUp in general, too, like the 3D Warehouse. Unfortunately, as of right now it looks like SP3 is not a guarantee on the 'student' computers.
//anyone else find it odd that on the sketchup forum, the word 'sketchup' still gets caught by spell check?
How do you code a keyboard key or joy button to toggle?
Thanks in advance
//Maybe have a potentiometer or motor encoder joint in SPIV?
Is there a way to take a servo's value in order to increase the servo on a key press?
Can you grab a variable from a joint like using a potentiometer?
I've never been good at code, maybe someone knows how to do this.
In my Remotec F6A models, I used motors with really high damp values for the joints, but they still sag after a while. I am hoping there is a way to use servos for the joints by using a variable that increases in increments when you hit a button on a keyboard or joypad.
I've driven something like this in a robotics competition, but I wasn't the one who coded it. (we were complemented on how "dexterous" the robot was)
http://sketchup.google.com/3dwarehouse/details?mid=52f2433d6a08367d86da15ae820fe0ef
That's not really working though- if you lift it up and set it to static, just the wheel with the motor turns, everything else just kind of chills.
That's a good idea, and after trying it a few times, still no luck.
@cphillips said:
Post the model and I'll take a look.
http://sketchup.google.com/3dwarehouse/details?mid=b779c6f6925171b2a5dcea3d38e1e185
I'm having trouble with a rear differential, it seems that you can't have gears connected to each other when their hinges are in the same group. When I run the simulation, the gears don't mesh, and when I go to end the sim, it creates a bug splat. Is something wrong or am I doing it wrong?
