hi everyone
i have been try to run the dragon g code file i downlosded from share your g codes .
first hint is i dont know what i am doing .
file was to big for my table so i scaled it down with Graham help.
  1 run scale 0.9000 x axis drifted to - side
  2  run same as above
  3 run scale 0.3000  successful
  4 run at scale 0.6000 unsuccessful same as run 1 and 2
   ran another file scale up to 1.5000 successful
  i down loaded mm to inches .
  any thoughts guys besides i dont know what i am doing
 thank you mikee

First OFF you do not know how big the part actually IS based on the Gcode file(;-) so you are just guessing as to the proper scale to cut what you want size wise.

When you cut it at .3 scale how big was the piece after you were done? That will give you the first clue as to how big the original file was.

You can also load the original file into mach set scale  at 1.000  then go to the toolpath page and look at the extents of the part it will tell you what the max height  and width will be.

(;-)TP

hi br549
   This topic was in share your gcodes but when i stated to run into trouble, my problems  was over running the dragon topic . i didnt want other people to think this code has problems so i started this topic here. very unfare of me not to post all the info but i was screwing up dragon topic .
original file was 619 mm y axis, my y axis max is 597mm  about 23.5 in this is what started all of this. 
 Graham and Rich Advised me to scale from 1.0000 to 0.9000  and i had never scaled anything before or even knew how to scale.  the 0.3000 is about 200mm or 7.380 inches  across. im just trying to learn and im not as smart as you guys are.
 this dragon file is a tool to help me learn because im not understanding everything i though hands on exp would help teach me. i have learned but i dont know if this file is going to be productive in teaching me any more past this point.
 once again Please forgive me for my poor info.
  and the tool path extents is why i ask for help to start of with.  but thats cool because if i didnt know before i do now. thank you
mikee
   

To be conservative a bit for the dimension, will take 500mm for the Y axis.

If you take 500 divided by 619 give a scale of .807 and rounded, this gives you a scale of .8

You enter .8 as the scaling factor in the X, Y and Z axis and the Dragon should be 500 wide in the Y axis


I'm not sure if is that's you're looking for.

Jeff

  Thank you i will try
  mikee