Hi RICH.. First i am thankful to you for showing us a nice tool you made..
As i have shown you the 45 degree square and the Circle..I have perfect all the things..but today when i tested on Aluminum i found some trouble as you can see in picture..
It is the picture of a simple 5-vane open impeller just to check the machine behaviour on the Aluminum... As you have seen in the picture, the simulation perfectly shows the same resultss of my Gcode.. I am annoyed only because i am going out of my centre.. As you have seen the picture one of the Vane just at the edge of the stock... All the dimensions are perfect..and this is very strange for me..if the motor looses steps then the Vane thickness and curvature must be different but in this case it is the same thickness.. I stopped the machine when the cutter strike the clamp.. If the part was completed then may be i had some clue why this happen?
The part dmension is 110mm, the stock used was Aluminum 121mm dia.. The pocket was done in 4-passess upto 8mm depth with 7 IPM and 800 RPM using new 8mm 2-flute HSS endMill..
Any thought?
PS:
SHOULD I SAY, THAT THE TOOL IS GOING OUT OF CENTRE? ... A little confusing to me... Seems that stock is offset to the Geometry in the CAM software.. But when i saw in the CAM the geometry is centred in the STOCK...... i am confused because thee impeller machining and dimension is right after removal of the part.. It seems that i have some offset of the complete part in the stock.. Help me i am in a very perplexing situation... Anything in MACH3 that can cause this???