request to proof read diagram

Opinions of this Diagram for PNCconf.

Does it help? is it correct?
Is the A axis direction indicator right? (it indicates table direction)

According to the right hand rule, if you sight along an axis from the positive toward the origin then positive rotation is CCW. Your diagram shows CW rotation on the A axis.

HOWEVER (and it wasn't obvious at first):

Since the part is rotating and not the tool head, the vectors are inverted, just as X and Y are inverted. Think of the X axis moving to the left, generating a positive displacement of the tool with respect to the part - same concept. So it appears your rotation is correct.

I suppose this rule applies whether the rotary head is facing left or right.

Doug

Yes Doug the A axis caught me too i had the diagram show the tool rotation first then realized i was wrong.

I'm not sure if the direction arrows on the top right are clear that they indicate TOOL movement not TABLE movement but I can add that to the text not shown.
Yes John I think I will add the A indicator to the top right too but of course again it will show TOOL movement.

I will make changes and post again. Thanks guys

Latest Version:

did this end up in the wiki? or other docs it is very useful information and i think should be included in the getting started part of the manual thanx guys

Its available in the PNCconf help page as well as a lathe diagram.
I'll leave it to John to decide if he would like it in the docs.
John drew the diagram for me.

I could add it to the Wiki if you think it is helpful.