Thanks, 

After reading the documentation again, I can see how it says that.



-----Original Message-----
From: Jeff Epler [mailto:[email protected]] 
Sent: Wednesday, 21 August 2013 10:02 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Partial helix

A 3 1/2 revolution helix can be done like so:

g0 x0 y0 z0
g17 g3 y2 z-4 p4 j1 f100

I think another way to state what is required is that the P-number is the
ceiling (rounded up) of the possibly-fractional number of turns.
In gcode this could be expressed as P[FUP[4.553186]], or you could round up
in your post.

Hopefully someone can come up with a clear wording for the documentation.

Jeff

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