Re: [Emc-users] Mill Head Travel.

I use a process similar to Jon Elson's. I use a lathe face plate and 3 adjustable supports. With an indicator in the spindle I drive X and Y to dial the surface of the face plate parallel to the XY plane. I then go to the center of the face plate and sweep the face plate adjusting A and B as

Re: [Emc-users] Mill Head Travel.

On 9 May 2018 at 00:57, John Dammeyer wrote: > I had a brake disk surface ground so it can be laid on the mill table Given that consistent thickness is absolutely requirement number one for a brake disc I just got a brand-new one. They are, after all, astonishingly cheap:

Re: [Emc-users] Mill Head Travel.

On Wednesday 09 May 2018 03:08:16 Gene Heskett wrote: > On Wednesday 09 May 2018 00:34:47 Jon Elson wrote: > > On 05/08/2018 10:04 PM, Gene Heskett wrote: > > > On Tuesday 08 May 2018 22:19:25 Jon Elson wrote: > > >> On 05/08/2018 06:57 PM, John Dammeyer wrote: > > >>> I had a brake disk surface

Re: [Emc-users] Mill Head Travel.

On Wednesday 09 May 2018 00:34:47 Jon Elson wrote: > On 05/08/2018 10:04 PM, Gene Heskett wrote: > > On Tuesday 08 May 2018 22:19:25 Jon Elson wrote: > >> On 05/08/2018 06:57 PM, John Dammeyer wrote: > >>> I had a brake disk surface ground so it can be laid on the mill > >>> table and a dial

Re: [Emc-users] Mill Head Travel.

I'd expect most to get it trammed, tighten the bolts extra, and leave it alone. Some companies doing Bridgeport or clone CNC builds made rigid rams without any ability for the head to tilt or nod. A few went so far as to make even the head custom, without any capability of having manual

Re: [Emc-users] Mill Head Travel.

On 05/08/2018 10:04 PM, Gene Heskett wrote: On Tuesday 08 May 2018 22:19:25 Jon Elson wrote: On 05/08/2018 06:57 PM, John Dammeyer wrote: I had a brake disk surface ground so it can be laid on the mill table and a dial indicator swept around without jamming into the T-Slots. For the work

Re: [Emc-users] Mill Head Travel.

> > > I have a program that generates a full circular arc, and > then goes to the center of the arc. > So, I can mill a path around the circle, then swap the end > mill for a dial test indicator, and sweep the > circle. So, I can tram the head to the actual X-Y plane of > motion, not just the

Re: [Emc-users] Mill Head Travel.

On Tuesday 08 May 2018 22:19:25 Jon Elson wrote: > On 05/08/2018 06:57 PM, John Dammeyer wrote: > > I had a brake disk surface ground so it can be laid on the mill > > table and a dial indicator swept around without jamming into the > > T-Slots. For the work I've done to date it's been adequate.

Re: [Emc-users] Mill Head Travel.

On 05/08/2018 06:20 PM, John Dammeyer wrote: Most of the Knee type mills have heads that can pivot up to 45 degrees left and right. Bridgeports can also pitch forward and back. For those who have done a CNC conversion on these machines, are those features every used anymore? Or is the head

Re: [Emc-users] Mill Head Travel.

On 05/08/2018 06:57 PM, John Dammeyer wrote: I had a brake disk surface ground so it can be laid on the mill table and a dial indicator swept around without jamming into the T-Slots. For the work I've done to date it's been adequate. It fits on my surface plate so I could scrape it even

Re: [Emc-users] Mill head travel

On Tuesday 08 May 2018 19:57:15 John Dammeyer wrote: > I had a brake disk surface ground so it can be laid on the mill table > and a dial indicator swept around without jamming into the T-Slots. > For the work I've done to date it's been adequate.  It fits on my > surface plate so I

Re: [Emc-users] Mill Head Travel.

> > I had a brake disk surface ground so it can be laid on the mill table > > and a dial indicator swept around without jamming into the T-Slots. > I did the same thing six years ago. Really want to make it easy get a coaxial indicator and it takes about a minute. > >

Re: [Emc-users] Mill Head Travel.

. Now to find a disk and flatten it... > > > -Original Message- > > From: Gene Heskett [mailto:ghesk...@shentel.net] > > Sent: May-08-18 4:44 PM > > To: emc-users@lists.sourceforge.net > > Subject: Re: [Emc-users] Mill Head Travel. > > > &g

Re: [Emc-users] Mill Head Travel.

#42. John > -Original Message- > From: Gene Heskett [mailto:ghesk...@shentel.net] > Sent: May-08-18 4:44 PM > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] Mill Head Travel. > > On Tuesday 08 May 2018 19:20:48 John Dammeyer wrote: > > > Mo

Re: [Emc-users] Mill Head Travel.

Thanks. I guess I won't mount any screens or stuff that would prevent it from tilting. John > -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: May-08-18 4:47 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Mill Head Travel

Re: [Emc-users] Mill Head Travel.

On Tuesday 08 May 2018 19:20:48 John Dammeyer wrote: > Most of the Knee type mills have heads that can pivot up to 45 degrees > left and right. Bridgeports can also pitch forward and back. For > those who have done a CNC conversion on these machines, are those > features every used anymore? Or

Re: [Emc-users] Mill Head Travel.

On Tue, May 8, 2018, 18:21 John Dammeyer wrote: Or is the head trammed in as close as possible and then left there forever? I recommend tramming to as close as possible with spindle down, then drilling and reaming for a shoulder bolt or other removable pin as a pinched

[Emc-users] Mill Head Travel.

Most of the Knee type mills have heads that can pivot up to 45 degrees left and right. Bridgeports can also pitch forward and back. For those who have done a CNC conversion on these machines, are those features every used anymore? Or is the head trammed in as close as possible and then left