Hey!
I don't think it works just with a motor and piston conected to a wheel.
But if you group a motorjoint together with a box, and then connect the piston to the motor-box-group, then it will work.
Here is a skp-file with a simple example:

wheel and piston.skp

P.S. if you don't want to se the box just right-click and hide it...

hope this is to some help.

/hpnisse

Cut apart the big box in smaller ones, like :
box in hole.skp

Then you can move the big box corectly:)

In menu,
Help/About Sketchup Physics:

@unknownuser said:

SketchyPhysics3.
hh´ttp://code.google.com/p/sketchyphysics2
Copyright 2009 C Philips.

In the simulation window:

@unknownuser said:

SketchyPhysics3x Jun 27

so I guess it is SP3x

I didn´t get the script idea to pickup an object to work, it will always freeze.

and if I use a controlled magnet: the SP.Simulation wont start, and when I press "resetPhysicsSim button" this box come up:

@unknownuser said:

error resetting the simulation: : undefined method ´/´ for nil:NilClass
C:/Program Files/Google/Google Sketchup
7/Plugins/SketchyPhysics3/sketchyphysicstool.rb:1270:in
´resetSimulation

wierd??
(and there can not be the Physics Installation that did´t work cause when I start a new Sketchup and start it will work just fine)

Anyone that can fix the problem with either the script system or the magnets?
thanks:D
/hpnisse

Thanks for that, but it will freeze when the "hook" touch the box. Why??
Se if you, or someone else can get it to work.

PICK MASKIN.skp

(all stuff is controlled by sliders)
thans again.

Hello!
Is there any way to pick up somethinge with a script?
I have one script:

ontouch{|toucher,s,p|
   if getVar("var1")==1 
     case toucher.name 
         when "NAME"
            connect(toucher,"fixed")
      end
   else
      ontouch{} #turn off ontouch event.
   end

But this script do not work, cause when it hit an object will the Sketchup and Physics freeze.

So, is there a script that can be turned on with a "getVar("Var")==1", and when the "var" is 0 it will release the object, just like pneumatic vakum.

Thanks for any help!
/hpnisse

Okay,
I'm not a Sketchup API friend so it would be hard for me to do.
But thanks for answer.

by the way, I have the SketchyPhysics3x Jun 27 version.
And it works perfect.

/hpnisse

Hello.
Can I change color of a group with script in SP3?
Example: Change color of a Light from red to green or something else. (the light is a group)

Thanks for any help, hope you understand.

Thats OK...

if I understand you right you want the slider("strength") to show up direct when the simulation starts:

put this code in "onthick" in some object(wherever you want:D)

if frame==0
slider('pitching strength')
end

hope this was the stuff you search for.

Have you try reinstall the SP3?

Okay!
Thanks!

Is there any way to get a "speedmeter" in sketchyphysics?

see my model to understand what I mean.

this is what I want to do:
'The servo should raise when the speed on the hinge is raised, is that possible?'
If not, there would be a good part in SPIV

thanks for help.
/Hpnisse

speedmeder.skp

Okey...

change the first line

if key("A")==1

to

if frame==0

all script

if frame==0
 setVar("start",1)
 setVar("stop",0)
end

if getVar("start")==1
 setVar("time",getVar("time")+1)
end

if getVar("stop")==1
 setVar("start",0)
end

This is exact that you searching for! (I hope)

I used this code in the 'ontick'

To start the "timer" press "A" (the SP Controll Panel must be visible and ontouched)

if key("A")==1
 setVar("start",1)
 setVar("stop",0)
end

if getVar("start")==1
 setVar("time",getVar("time")+1)
end

if getVar("stop")==1
 setVar("start",0)
end

The timer stops when the box is touched by the ball
and the timer also start again when you press "A" again.

if you want to reset the timer every time you press "A" (or another key)
put this line into the 'ontick' at the third line before the first 'end'.

 setVar("time",0)

Hope this helps!:D

this is the changed version

THANKS CPhillips!!

this code was the thing I searched for

if(frame==10)
UI.start_timer(10){setVar("timer1",1)}
end

But I start/reset it with a "getVar" command... and it works perfect!

if getVar('start')==1
UI.start_timer(5){setVar("timer1",1)}
end
if getVar('stop')==1
 setVar('timer1',0)
end

Why should I don't use it to many timers at the same project? Would Sketchup crash??

Thanks again!
I'm look forward to see SPIV, can it be better than it is now?:D

Thanks!

But that is not the thing I searching for...
cause:

@unknownuser said:

if key("space")==1 then setVar("time",10);end;

only set a standard variable to 10 with the name "time".

I search for something that count to ten (or something else), and when it reach the number it would set the variable to 1 (one).

and with another script it would reset the timer/counter.

your script is good, nothing wrong, but not the thing i searched for.

but thanks for the help, I appreciate that

I have an idea to the SPIV
It is possible to create some kind of Timer (clock) in future version of SP?

I had an idea how to get it look, really simple idea.

To start the timer: (when the time is reached it would set the variable to 1, one)

setTime('timer_name',time in seconds)

example:

setTime('timer1',10)

a timer at ten seconds

and to reset it: (set the variable to 0, zero)
rstTime('timer_name')

example:

rstTime('timer1')

Or is it possible already in SP3x or something?
Thanks for answer and hope that this is possible, it would be a really helpfull stuff in SPIV.
(sorry for bad English )

Okay!
Now I understand better what [1,2,3,4] part is...
thanks a lot.
So you think that I should do a program for every joint, as it was berfore I edited it.
I would try that and se if I can get it.
But if you came up with something new and "easier" way so share it, thanks for the help.
I love SketchyPhysics3 and wait so much for the SPIV version...

Thanks for the codes...
But I can't get it work, I don't know if I do right?
How would you do with the program in the skp-file that I had edited?

it is the "[1,2,3,4,5,6]" part that I don't understand.

this is an version that I used, but the only thing that happen is that all values in the robot is set to 1 ('one').

if getVar('XXX')==1;
[
if((frame%400)>20and(frame%400)<200)
 setVar('snurr',0)
else
 setVar('snurr',1)
end,

if((frame%400)>130and(frame%400)<200)
 setVar('XLLed',0.5)
else
 setVar('XLLed',0.2)
end,

if((frame%400)>130and(frame%400)<200)
 setVar('SLed',0.9)
elsif((frame%400)>200and(frame%400)<200)
 setVar('SLed',1.05)
else
 setVar('SLed',0.8)
end,

if((frame%400)>160and(frame%400)<300)
 setVar('klo',-1.0)
else
 setVar('klo',0.5)
end,

setVar("XXX",0)
]
[(frame/50)%5]; else; 0; end

I even don't know if I'm on the right way.

Thank's for the help!