On 18 August 2010 00:30, Tom Smith <[email protected]> wrote: > Is there any way to true single-point thread trap threadforms?
I would expect so. I have cut coarse (4mm pitch) threads using a broadly similar approach and G76. The threading cycle starts from the initial position, so you can gut a thread normally, then move the Z and / or X little, cut another thread and incrementally cut the thread. My 4mm pitch thread was done as a multi-pass cut of 1/4 the depth, then back off 1mm and another threading cycle to half depth, back off another 1mm and thread to 3/4 depth and then back off the final 1mm and a final full cycle to full depth (all with a 30 degree "compound angle". The effect of this was that the cut was never more than about 1mm wide (with a light skim on the other thread flank) (I didn't think of this solution myself, it was a suggestion from Chris Radek) -- atp ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
