On Friday 23 September 2016 04:18:10 Erik Christiansen wrote: > This post's gone the long way. > > ----- Forwarded message from Sarah Armstrong > <[email protected]> ----- > > Date: Fri, 23 Sep 2016 09:01:07 +0100 > From: Sarah Armstrong <[email protected]> > To: Erik Christiansen <[email protected]> > Subject: Re: [Emc-users] Anybody have an idea how... > In-Reply-To: <20160923074751.GB3393@ratatosk> > References: <[email protected]> > <20160923074751.GB3393@ratatosk> > > Gene, > Can you flood it with paraffin or wd40? > 200 rpm to me is to slow, you,ll be probably better at 600 - 800
I hadn't even thought of that, I've been too long swinging an off-center mounted block of cast iron, off-center about 2 lbs worth. TLM doing the sailors hornpipe dance at 125 revs. :) What sort of a feed rate should I be using with a g83 peck cycle to do the finish work? > Perhaps bolt the part to a face plate, if it keeps being thrown. That was only a problem once, and a piece of cherry and a hammer re-centered it in the chuck according to a .0001" dial. Its a 4 jaw, and well tightened. The last operation will be to shave a couple thou off where the pulley will be pressed on, to make sure its all concentric. Measure that, and then bore the pulley for a hot/cold press fit. But I am concerned with boring the 8mm thru hole for the x shaft to grab from about 75 mm's from the toolpost. I wish I had a set of reamers to finish the hole, but I don't. I'll probably drill a smaller hole from this clamp-up, and I've faced the end of it already so it will sit plumb on the face of the chuck, so I should be able to turn it around and dial in the drilled hole. Then put a fresh SC 1/4" mill in the boring bar holder with an adapter sleeve I made, turn the tool post about 5 degrees CCW so just one corner of the mill touches, and finish boring to 8 mm's. I've bored a bunch of holes that way. Thanks Erik. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
