Relative to    While Ismoving ()  and Wend        there is a rather long thread / discussion  about it.
Can find my notes on that thread or the thread itself. No I don't remember all the specifics.

BR549, ring any bells???

RICH

Now another thing Sleep() is NOT just about waiting it also frees up teh CPU during a wait state and can allow OTHER processes to run while the wait is going on OTHERWISE teh wait can HOG all teh CPU resources and nothing else can happen.

(;-) TP

Your summarizing nicely Terry........

RICH

hIYA RICH. There were MANY discussions on it in past years.  BUT seeing how it will never ever be worked on again I don't see any point in cranking the discussion back up again. (;-)

(;-) TP

Understand, don't want a discussion on it, but said differently, If one scripts  the ....following....things will work as intended......well for later versions of Mach anyway.

Carry On,

RICH

OKAY OKAY So I was wrong my bad. I guess I have alot of reading up to do on this.

So BR549, Are you saying a Sleep() function is better to use than While IsMoving() Wend, because it will allow the Previous lines to finish executing?

Also, Do I need to recall G91 after I call a G0? Or is calling G91 once at the start okay?

Hows this

Message "Finding Circle Center"
CurrentFeed = GetOemDRO(818)
 If GetOemLed (825) <> 0 Then     
      Message "Z-Plate is grounded, check connection and try again"
   Else
Code "G91"
Code "G31 X-7 F8"   
While IsMoving()
Wend                                         
X1 = GetVar(2000)
While IsMoving()
Wend                                   
Code "G0 X" & .98*X1               
Code "G31 X7 F8"
While IsMoving()
Wend
X2 = GetVar(2000)
While IsMoving()
Wend   
Xc = (X1 + X2)/2
Code "G0 X" & XC       'as well is calling a variable in a code line acceptable? Need help with these lines
Code "G31 Y-3 F8"
While IsMoving()
Wend
Y1 = GetVar(2001)
While IsMoving()
Wend
Code "G0 Y" & .98*Y1
Code "G91 G31 Y3 F8"
While IsMoving()
Wend
Y2 = GetVar(2001)
While IsMoving()
Wend   
Yc = (Y1 + Y2)/2
Code "G0 Y" & Yc   
Code "G31 X-7 F30"
While IsMoving()
If X<.95*X1 Then SetFeedRate(F2) 
Wend
X1 = GetVar(2000)
While IsMoving()
Wend
Code "G0 X" & .98*X1   
Code "G31 X7 F30"
While IsMoving()
If X>.95*XMax Then SetFeedRate(F2)
Wend
X2 = GetVar(2000)
While IsMoving()
Wend   
Xc = (X1 + X2)/2
Code "G0 X" & Xc     
ode "G31 Y-3 F30"
While IsMoving()
If Y<.95*YMin Then SetFeedRate(F2)      '<--- Do I need the () of While IsMoving to be around my If Then? Or is just before the Wend okay?
Wend
Y1 = GetVar(2001)
While IsMoving()
Wend
Code "G0 Y" & .98*Y1
Code "G31 Y3 F30"
While IsMoving()
If X>.95*YMax Then SetFeedRate(F2)
Wend
Y2 = GetVar(2001)
While IsMoving()
Wend     
Yc = (Y1 + Y2)/2
Code "G0 Y" & Yc 
SetDro(XaxisDRO,0)
SetDro(YaxisDRO,0)
Code "G0 G53 Z-4" 
Message "Circle Center Found"


Another thing to keep in mind IS Mach3's scripting language is Cypress Basic . It is NOT Visual Basic(VB) 

(;-) TP

Nissan......,
Not saying your wrong / whatever.
Rather,
Trying to get some of the knowledge available to you for the script.
You'll be even more dangerous than me in no time at all, 

RICH
 

LOL Rich no offence taken at all bud! Just saying I know my place here... I got alot to learn C++ is way different

Okay this doesnt work I'm in test phase as we speak.... touches and stops great but the last line doesnt work it just keeps going + forever

Message "Finding Circle Center"
CurrentFeed = GetOemDRO(818)
 If GetOemLed (825) <> 0 Then     
      Message "Z-Plate is grounded, check connection and try again"
   Else
Code "G91"
Code "G31 X-7 F8"   
While IsMoving()
Wend                                         
X1 = GetVar(2000)
While IsMoving()
Wend                                   
Code "G0 X" & X1*.98

Do I need a X3?

X3 = X1 * .98
then
Code "G0 X" & X3





okay this worked

Message "Finding Circle Center"
CurrentFeed = GetOemDRO(818)
 If GetOemLed (825) <> 0 Then     
      Message "Z-Plate is grounded, check connection and try again"
   Else
Code "G91"
Code "G31 X-7 F8"   
While IsMoving()
Wend                                         
X1 = GetVar(2000)
While IsMoving()
Wend
X3 = X1*.90                                   
Code "G0 X"&X3         
End If

easier way?