Re: [Emc-users] More cbn headaches

On Wednesday 08 July 2020 21:24:56 Jon Elson wrote: > On 07/08/2020 08:03 PM, Gene Heskett wrote: > > Absolutely Jon. But to do it right requires a machine with little or > > no backlash so it can't pull the work. > > Or else, you always did a climb mill finish pass with a very > shallow cut.

Re: [Emc-users] More cbn headaches

On 07/08/2020 08:03 PM, Gene Heskett wrote: Absolutely Jon. But to do it right requires a machine with little or no backlash so it can't pull the work. Or else, you always did a climb mill finish pass with a very shallow cut. That's what I did on my ancient Bridgeport before I did the CNC

Re: [Emc-users] More cbn headaches

On Wednesday 08 July 2020 19:44:13 Jon Elson wrote: > On 07/08/2020 04:01 PM, Gene Heskett wrote: > > Its the next edge coming round to do another cut, which has to cut > > thru the oxide that forms on the raw alu after the previous edge > > clears the scene. > > And, that's why climb milling

Re: [Emc-users] More cbn headaches

On 07/08/2020 04:01 PM, Gene Heskett wrote: Its the next edge coming round to do another cut, which has to cut thru the oxide that forms on the raw alu after the previous edge clears the scene. And, that's why climb milling works so much better that conventional milling. With conventional,

Re: [Emc-users] Jerky jog in new 2.8 and 2.9 but not old 2.8 (onscreen buttons + mouse OK but not keyboard), also in sim

Using halscope I could see it is also in sim, change in speed is less but guess this is because of maximum acceleration allowed. > On Tue, 7 Jul 2020 at 22:14, N wrote: > > > I do not consider it a big problem and will probably connect other jogging > > method once machine is up and running

Re: [Emc-users] Jerky jog in new 2.8 and 2.9 but not old 2.8 (onscreen buttons + mouse OK but not keyboard)

> On Tue, 7 Jul 2020 at 22:14, N wrote: > > > I do not consider it a big problem and will probably connect other jogging > > method once machine is up and running but as it worked in old version it > > would of course be good to get it perfect again. >

Re: [Emc-users] More cbn headaches

> wrote: > > > No you would not have to do this in an inert atmosphere. The only > > > difficult part would be collecting all the chips. > > > > I would expect that the newly-cut surface is hermetically sealed to > > the cutting edge until it isn't, and then it isn't damaging the edge, > > no

Re: [Emc-users] More cbn headaches

On Wednesday 08 July 2020 16:47:22 andy pugh wrote: > On Wed, 8 Jul 2020 at 19:03, Todd Zuercher wrote: > > No you would not have to do this in an inert atmosphere. The only > > difficult part would be collecting all the chips. > > I would expect that the newly-cut surface is hermetically

Re: [Emc-users] Jerky jog in new 2.8 and 2.9 but not old 2.8 (onscreen buttons + mouse OK but not keyboard)

On Tuesday 07 July 2020 19:45:42 Gene Heskett wrote: > On Tuesday 07 July 2020 19:23:28 Phill Carter wrote: > > This post on the forum seemed to solve a similar issue. > > > > >xc

Re: [Emc-users] SPAM: Re: More cbn headaches

On Wed, 8 Jul 2020 at 19:03, Todd Zuercher wrote: > No you would not have to do this in an inert atmosphere. The only difficult > part would be collecting all the chips. I would expect that the newly-cut surface is hermetically sealed to the cutting edge until it isn't, and then it isn't

Re: [Emc-users] More cbn headaches

This does bring back fond memories of taking Analytical Chemistry course in college.  Todd Zuercher P. Graham Dunn Inc. 630 Henry Street  Dalton, Ohio 44618 Phone:  (330)828-2105ext. 2031 -Original Message- From: Chris Albertson Sent: Wednesday, July 08, 2020 2:10 PM To: Enhanced

Re: [Emc-users] More cbn headaches

Again.It is not hard. We did stuff like this in school at UCLA. I whole room full of 19 and 20 year olds did just fine. It is even easier then I fist wrote. Just three steps. 1) Measure the weight of the bar stock using a scale that works in 0.0001 grams (tenths of mg) 2) Turn the bars

Re: [Emc-users] More cbn headaches

If you had a good scale, All you need to do is weight the stock. Then chuck it is a lathe and make some long ribbon-like swarf until you have what you think is enough.Then weigh the remaining stock. Assume the difference is the amount of aluminum removed.Yes the surface area is reduced

Re: [Emc-users] SPAM: Re: More cbn headaches

No you would not have to do this in an inert atmosphere. The only difficult part would be collecting all the chips. You'd simply weigh the un cut block and cutting tool before cutting. (you need to include the tool because of material sticking to the tool and any tool wear.) Then weigh the

Re: [Emc-users] More cbn headaches

On Wednesday 08 July 2020 12:47:17 N wrote: > On Wed, 8 Jul 2020 12:15:21 -0400 > > Gene Heskett wrote: > > On Monday 06 July 2020 00:43:30 Chris Albertson wrote: > > > On Sun, Jul 5, 2020 at 3:33 AM andy pugh wrote: > > > > You say this a lot, but I have never heard anyone else say it. > > >

Re: [Emc-users] More cbn headaches

On Wed, 8 Jul 2020 12:15:21 -0400 Gene Heskett wrote: > On Monday 06 July 2020 00:43:30 Chris Albertson wrote: > > > On Sun, Jul 5, 2020 at 3:33 AM andy pugh wrote: > > > You say this a lot, but I have never heard anyone else say it. What > > > is your source? > > > > THis might be a

Re: [Emc-users] ghesk...@shentel.net

On Wednesday 08 July 2020 11:21:01 Roland Jollivet wrote: > Hi Gene > > I don't know if you got this on the list, so I'm sending it directly > to you too. > I got it on the list too. Thanks. > Here >

Re: [Emc-users] More cbn headaches

On Monday 06 July 2020 00:43:30 Chris Albertson wrote: > On Sun, Jul 5, 2020 at 3:33 AM andy pugh wrote: > > You say this a lot, but I have never heard anyone else say it. What > > is your source? > > THis might be a "Chemistry 101" question. It should be easy enough to > figure out except that

[Emc-users] ghesk...@shentel.net

Hi Gene I don't know if you got this on the list, so I'm sending it directly to you too. Here

Re: [Emc-users] Jerky jog in new 2.8 and 2.9 but not old 2.8 (onscreen buttons + mouse OK but not keyboard)

"xset -r" and jogging is smooth. Auto repeat must be the problem, false key up. Andy pugh suggested reverting to e09ae64fb0a76355b4f559e28c91a29fb25af8ce and this https://github.com/LinuxCNC/linuxcnc/commit/29f52a6e2be42f7785e965a7002eaecf33f0b7aa#diff-5368256524ea7313310fa9c396bbbcf2 but need