Re: [Emc-users] buildbot apt-key?
On Monday, 21 March 2022 21:04:22 EDT andy pugh wrote: > On Mon, 21 Mar 2022 at 19:27, gene heskett wrote: > > How do I get and install the buildbot's apt-key EF1B07FEE0EE663E ? > > Do the instructions on the buildbot page not work? > http://buildbot.linuxcnc.org > > Worked just fine, once I found the page. Thanks Andy. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users 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, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] buildbot apt-key?
On Mon, 21 Mar 2022 at 19:27, gene heskett wrote: > How do I get and install the buildbot's apt-key EF1B07FEE0EE663E ? Do the instructions on the buildbot page not work? http://buildbot.linuxcnc.org -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] buildbot apt-key?
Greetings all; How do I get and install the buildbot's apt-key EF1B07FEE0EE663E ? With wget I'd imagine, but don't recall the keyserver. :( Thanks all. 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, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
> > I have machined a number of ballscrews. Typically I peel of the outer > hardened layer with CBN-tipped tools, but mainly because I have some. > It can be done with normal carbide, though you might need more than > one. > Very high surface speed and very light cuts is the way to go. > > https://youtu.be/SmuZXXP_hMY Nice Andy! I have some sumitomo CBN inserts I purchased from ebay a while back because they were really cheap but never used it because I'm always lacking the tool holder... El lun, 21 mar 2022 a las 12:54, andy pugh () escribió: > On Mon, 21 Mar 2022 at 13:53, Leonardo Marsaglia > wrote: > > > > Sam, have you had to soften the final portion of the ballscrew to machine > > that thread? I've never done it and the ones I'm mounting in the router > are > > fixed (rotating nut). > > I have machined a number of ballscrews. Typically I peel of the outer > hardened layer with CBN-tipped tools, but mainly because I have some. > It can be done with normal carbide, though you might need more than > one. > Very high surface speed and very light cuts is the way to go. > > https://youtu.be/SmuZXXP_hMY > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
we wrapped the ball screw and nut with plastic - dad went outside and ground it with an angle grinder. Then finished it up on the belt sander. He took a couple breaks mainly so it didn't get too hot. (it barely got hot to the touch.) We had thought about milling out the slot - but didn't want to risk having it change the shape of the saddle. sam On Mon, Mar 21, 2022 at 11:03 AM andy pugh wrote: > On Mon, 21 Mar 2022 at 12:23, Sam Sokolik wrote: > > > > Dad ground the ball screw nut. > > Inventive :-) > > I have used the RSH style a couple of times now. > > http://www.gtenballscrew.com.tw/Page/Product/ProductDetail.aspx?ProductCategoryNo=123=15 > Odd that the 16mm is smaller than the 12mm, but that might be > explained by the 16mm having an external ball-return tube that isn't > shown in the diagram. > > There is a pic of it here: > https://bodgesoc.blogspot.com/2016/08/holbrook08.html > > > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
On Mon, 21 Mar 2022 at 16:03, dave engvall wrote: > In line with the nebel prize: the machine should be a very light grey > and your hand should pass thru it easily. ;-) Nebel = fog. Indeed. The Germans don't call it "mist" :-) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
On Mon, 21 Mar 2022 at 12:23, Sam Sokolik wrote: > > Dad ground the ball screw nut. Inventive :-) I have used the RSH style a couple of times now. http://www.gtenballscrew.com.tw/Page/Product/ProductDetail.aspx?ProductCategoryNo=123=15 Odd that the 16mm is smaller than the 12mm, but that might be explained by the 16mm having an external ball-return tube that isn't shown in the diagram. There is a pic of it here: https://bodgesoc.blogspot.com/2016/08/holbrook08.html -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
It is my understanding that ball screws are case hardened so grind to get under the case and then things get easy. Interesting and good job on the ball nut. !! In line with the nebel prize: the machine should be a very light grey and your hand should pass thru it easily. ;-) Nebel = fog. Dave On 3/21/22 7:46 AM, gene heskett wrote: On Monday, 21 March 2022 08:19:14 EDT Sam Sokolik wrote: Dad ground the ball screw nut.. everything fits nicely under the cross slide it seems.. Found a bit of aluminium to make a simple bearing block for 2 angular contact bearings.. https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 Unforch Sam, no access On Sun, Mar 20, 2022 at 5:56 PM gene heskett wrote: On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote: Gene, The replacement ball bearing fan isn't on the bed fan duct but cools the top part of the hot end where the filament enters the PTFE lined feed pipe. Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle temps, the stuff eventually goes away or leaks badly. Feed it PETG at 240C, goes away in 2 days. All metal hot ends are better, titainium heat breaks even better. Better yet I suspect is the copperhead copper/ titainium combo but like the PCD nozzle, bring real money. Problem solved which the new blower duct, now not aimed at the hot end, did not completely fix. should be aimed at or just below the nozzle tip. Wrapped hot end block in insulating paper and Krylon tape. Now nice flat curves and no drop in temperature even with 98% bed fan speed. John -Original Message- From: gene heskett [mailto:ghesk...@shentel.net] Sent: March-20-22 2:50 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.> On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote: Story of my life. Fan failed on 3D printer. Repaired feed tube and replaced with ball bearing fan I had from power supply manufacturing inventory. Almost 1 week later still not working quite the way it was and the way I want. John ball bearing fans start easier, leads to over cooling the early layers. Change the min speed so its stopped for the 1st layer like it used to be at 25% power. Sleeve bearing fans often don't start at all till the mid 30% range. Try zero for the first layer or even as high as the third layer before the fan actually starts. I have a ball bearing fan on my BIQU BX and it runs plenty fast enough at 30% of max in cura for PETG which needs far less cooling than PLA. I don't mess with PLA at all, too brittle. I've also put a diamonback .4mm PCD nozzle in mine so I can use the carbon fiber filled PETG but haven't yet seen the need for its improved strength. I'm running the nozzle at 252C and the bed at 90C and my printed air manifold is air tight. Bed adhesion is only a problem getting stuff loose. Its almost too good. If the nozzle is slobbering, check how tight it is, then reduce the flow 2% at a time to stop the overflow, this PCD nozzle conducts heat into the filament better than brass, melting it better which can increase the flow. At 245C the part will not be airtight if you need that. At 252C the part gets noticably glossier because its more liquid and bonds well to the next layer down before it cools and solidify's. Take care and stay well John. And my teeny version to be used as the B axis driver on my 6040 mill, the one that costs around a tenner to make, seems to be pretty solid, got several hundred hours on it now but it probably going to get another 200 running a hard maple stick for a woodworkers leg vise screw. I've got to make an idler yet to tighten the belt as that is the only backlash it it. 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, 1940) If we desire respect for the law, we must first make the law respectable.> - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users 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, 1940) If we desire respect for the law, we must first make the law respectable.> - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users . Cheers, Gene Heskett. ___ Emc-users mailing list Emc-users@lists.sourceforge.net
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
On Mon, 21 Mar 2022 at 13:53, Leonardo Marsaglia wrote: > > Sam, have you had to soften the final portion of the ballscrew to machine > that thread? I've never done it and the ones I'm mounting in the router are > fixed (rotating nut). I have machined a number of ballscrews. Typically I peel of the outer hardened layer with CBN-tipped tools, but mainly because I have some. It can be done with normal carbide, though you might need more than one. Very high surface speed and very light cuts is the way to go. https://youtu.be/SmuZXXP_hMY -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
On Monday, 21 March 2022 08:19:14 EDT Sam Sokolik wrote: > Dad ground the ball screw nut.. everything fits nicely under the > cross slide it seems.. Found a bit of aluminium to make a simple > bearing block for 2 angular contact bearings.. > > https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > Unforch Sam, no access > On Sun, Mar 20, 2022 at 5:56 PM gene heskett wrote: > > On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote: > > > Gene, > > > The replacement ball bearing fan isn't on the bed fan duct but > > > cools > > > the top part of the hot end where the filament enters the PTFE > > > lined > > > feed pipe. > > > > Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle > > temps, the stuff eventually goes away or leaks badly. Feed it PETG at > > 240C, goes away in 2 days. All metal hot ends are better, titainium > > heat breaks even better. Better yet I suspect is the copperhead > > copper/ titainium combo but like the PCD nozzle, bring real money. > > > > > Problem solved which the new blower duct, now not aimed at the hot > > > end, did not completely fix. > > > > should be aimed at or just below the nozzle tip. > > > > > Wrapped hot end block in insulating paper and Krylon tape. Now > > > nice > > > flat curves and no drop in temperature even with 98% bed fan speed. > > > > > > John > > > > > > > -Original Message- > > > > From: gene heskett [mailto:ghesk...@shentel.net] > > > > Sent: March-20-22 2:50 PM > > > > To: Enhanced Machine Controller (EMC) > > > > Subject: Re: [Emc-users] Because I can't seem to finish > > > > anything... > > > > Nebel lathe conversion.> > > > > > > > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote: > > > > > Story of my life. Fan failed on 3D printer. Repaired feed > > > > > tube > > > > > and > > > > > replaced with ball bearing fan I had from power supply > > > > > manufacturing > > > > > inventory. Almost 1 week later still not working quite the > > > > > way it > > > > > was and the way I want. John > > > > > > > > ball bearing fans start easier, leads to over cooling the early > > > > layers. Change the min speed so its stopped for the 1st layer > > > > like > > > > it used to be at 25% power. Sleeve bearing fans often don't start > > > > at > > > > all till the mid 30% range. > > > > > > > > Try zero for the first layer or even as high as the third layer > > > > before > > > > the fan actually starts. I have a ball bearing fan on my BIQU BX > > > > and > > > > it runs plenty fast enough at 30% of max in cura for PETG which > > > > needs far less cooling than PLA. I don't mess with PLA at all, > > > > too > > > > brittle. > > > > > > > > I've also put a diamonback .4mm PCD nozzle in mine so I can use > > > > the > > > > carbon fiber filled PETG but haven't yet seen the need for its > > > > improved strength. I'm running the nozzle at 252C and the bed at > > > > 90C > > > > and my printed air manifold is air tight. Bed adhesion is only a > > > > problem getting stuff loose. Its almost too good. If the nozzle > > > > is > > > > slobbering, check how tight it is, then reduce the flow 2% at a > > > > time > > > > to stop the overflow, this PCD nozzle conducts heat into the > > > > filament better than brass, melting it better which can increase > > > > the > > > > flow. At 245C the part will not be airtight if you need that. At > > > > 252C the part gets noticably glossier because its more liquid and > > > > bonds well to the next layer down before it cools and solidify's. > > > > > > > > Take care and stay well John. And my teeny version to be used as > > > > the > > > > B > > > > axis driver on my 6040 mill, the one that costs around a tenner > > > > to > > > > make, seems to be pretty solid, got several hundred hours on it > > > > now > > > > but it probably going to get another 200 running a hard maple > > > > stick > > > > for a woodworkers leg vise screw. I've got to make an idler yet > > > > to > > > > tighten the belt as that is the only backlash it it. > > > > > > > > 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, 1940) > > > > If we desire respect for the law, we must first make the law > > > > respectable.> > > > > > > > > - Louis D. Brandeis > > > > > > > > ___ > > > > Emc-users mailing list > > > > Emc-users@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > 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, 1940) > > If we desire respect for the law, we must first make the law > > respectable.> > > - Louis D.
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
The nut, though felt, pretty hard. On Mon, Mar 21, 2022 at 9:22 AM Sam Sokolik wrote: > That was a generic ball screw from ebay with the ends machine. My > understanding is the shaft is only surface hardened and is pretty soft > underneath. (have not tried filing various areas of the ball screw though) > > On Mon, Mar 21, 2022 at 8:53 AM Leonardo Marsaglia > wrote: > >> Sam, have you had to soften the final portion of the ballscrew to machine >> that thread? I've never done it and the ones I'm mounting in the router >> are >> fixed (rotating nut). >> >> El lun, 21 mar 2022 a las 10:15, Sam Sokolik () >> escribió: >> >> > Sorry - meant to post >> > https://photos.app.goo.gl/yBNmiD9rRkPCoNgJ8 >> > >> > On Mon, Mar 21, 2022 at 7:19 AM Sam Sokolik wrote: >> > >> > > Dad ground the ball screw nut.. everything fits nicely under the >> cross >> > > slide it seems.. Found a bit of aluminium to make a simple bearing >> block >> > > for 2 angular contact bearings.. >> > > >> > > https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA >> > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 >> > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 >> > > >> > > On Sun, Mar 20, 2022 at 5:56 PM gene heskett >> > wrote: >> > > >> > >> On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote: >> > >> > Gene, >> > >> > The replacement ball bearing fan isn't on the bed fan duct but >> cools >> > >> > the top part of the hot end where the filament enters the PTFE >> lined >> > >> > feed pipe. >> > >> > >> > >> Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle >> > >> temps, the stuff eventually goes away or leaks badly. Feed it PETG at >> > >> 240C, goes away in 2 days. All metal hot ends are better, titainium >> heat >> > >> breaks even better. Better yet I suspect is the copperhead copper/ >> > >> titainium combo but like the PCD nozzle, bring real money. >> > >> >> > >> > Problem solved which the new blower duct, now not aimed at the hot >> > end, >> > >> > did not completely fix. >> > >> >> > >> should be aimed at or just below the nozzle tip. >> > >> > >> > >> > Wrapped hot end block in insulating paper and Krylon tape. Now >> nice >> > >> > flat curves and no drop in temperature even with 98% bed fan speed. >> > >> > >> > >> > John >> > >> > >> > >> > > -Original Message- >> > >> > > From: gene heskett [mailto:ghesk...@shentel.net] >> > >> > > Sent: March-20-22 2:50 PM >> > >> > > To: Enhanced Machine Controller (EMC) >> > >> > > Subject: Re: [Emc-users] Because I can't seem to finish >> anything... >> > >> > > Nebel lathe conversion.> >> > >> > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote: >> > >> > > > Story of my life. Fan failed on 3D printer. Repaired feed >> tube >> > >> > > > and >> > >> > > > replaced with ball bearing fan I had from power supply >> > >> > > > manufacturing >> > >> > > > inventory. Almost 1 week later still not working quite the >> way >> > it >> > >> > > > was and the way I want. John >> > >> > > >> > >> > > ball bearing fans start easier, leads to over cooling the early >> > >> > > layers. Change the min speed so its stopped for the 1st layer >> like >> > >> > > it used to be at 25% power. Sleeve bearing fans often don't >> start at >> > >> > > all till the mid 30% range. >> > >> > > >> > >> > > Try zero for the first layer or even as high as the third layer >> > >> > > before >> > >> > > the fan actually starts. I have a ball bearing fan on my BIQU BX >> and >> > >> > > it runs plenty fast enough at 30% of max in cura for PETG which >> > >> > > needs far less cooling than PLA. I don't mess with PLA at all, >> too >> > >> > > brittle. >> > >> > > >> > >> > > I've also put a diamonback .4mm PCD nozzle in mine so I can use >> the >> > >> > > carbon fiber filled PETG but haven't yet seen the need for its >> > >> > > improved strength. I'm running the nozzle at 252C and the bed at >> 90C >> > >> > > and my printed air manifold is air tight. Bed adhesion is only a >> > >> > > problem getting stuff loose. Its almost too good. If the nozzle >> is >> > >> > > slobbering, check how tight it is, then reduce the flow 2% at a >> time >> > >> > > to stop the overflow, this PCD nozzle conducts heat into the >> > >> > > filament better than brass, melting it better which can increase >> the >> > >> > > flow. At 245C the part will not be airtight if you need that. At >> > >> > > 252C the part gets noticably glossier because its more liquid and >> > >> > > bonds well to the next layer down before it cools and solidify's. >> > >> > > >> > >> > > Take care and stay well John. And my teeny version to be used as >> the >> > >> > > B >> > >> > > axis driver on my 6040 mill, the one that costs around a tenner >> to >> > >> > > make, seems to be pretty solid, got several hundred hours on it >> now >> > >> > > but it probably going to get another 200 running a hard maple >> stick >> > >> > > for a woodworkers leg vise screw. I've got to make an idler yet >> to >> > >> > >
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
That was a generic ball screw from ebay with the ends machine. My understanding is the shaft is only surface hardened and is pretty soft underneath. (have not tried filing various areas of the ball screw though) On Mon, Mar 21, 2022 at 8:53 AM Leonardo Marsaglia wrote: > Sam, have you had to soften the final portion of the ballscrew to machine > that thread? I've never done it and the ones I'm mounting in the router are > fixed (rotating nut). > > El lun, 21 mar 2022 a las 10:15, Sam Sokolik () > escribió: > > > Sorry - meant to post > > https://photos.app.goo.gl/yBNmiD9rRkPCoNgJ8 > > > > On Mon, Mar 21, 2022 at 7:19 AM Sam Sokolik wrote: > > > > > Dad ground the ball screw nut.. everything fits nicely under the > cross > > > slide it seems.. Found a bit of aluminium to make a simple bearing > block > > > for 2 angular contact bearings.. > > > > > > https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA > > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > > > > > > On Sun, Mar 20, 2022 at 5:56 PM gene heskett > > wrote: > > > > > >> On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote: > > >> > Gene, > > >> > The replacement ball bearing fan isn't on the bed fan duct but cools > > >> > the top part of the hot end where the filament enters the PTFE lined > > >> > feed pipe. > > >> > > > >> Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle > > >> temps, the stuff eventually goes away or leaks badly. Feed it PETG at > > >> 240C, goes away in 2 days. All metal hot ends are better, titainium > heat > > >> breaks even better. Better yet I suspect is the copperhead copper/ > > >> titainium combo but like the PCD nozzle, bring real money. > > >> > > >> > Problem solved which the new blower duct, now not aimed at the hot > > end, > > >> > did not completely fix. > > >> > > >> should be aimed at or just below the nozzle tip. > > >> > > > >> > Wrapped hot end block in insulating paper and Krylon tape. Now > nice > > >> > flat curves and no drop in temperature even with 98% bed fan speed. > > >> > > > >> > John > > >> > > > >> > > -Original Message- > > >> > > From: gene heskett [mailto:ghesk...@shentel.net] > > >> > > Sent: March-20-22 2:50 PM > > >> > > To: Enhanced Machine Controller (EMC) > > >> > > Subject: Re: [Emc-users] Because I can't seem to finish > anything... > > >> > > Nebel lathe conversion.> > > >> > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote: > > >> > > > Story of my life. Fan failed on 3D printer. Repaired feed tube > > >> > > > and > > >> > > > replaced with ball bearing fan I had from power supply > > >> > > > manufacturing > > >> > > > inventory. Almost 1 week later still not working quite the way > > it > > >> > > > was and the way I want. John > > >> > > > > >> > > ball bearing fans start easier, leads to over cooling the early > > >> > > layers. Change the min speed so its stopped for the 1st layer like > > >> > > it used to be at 25% power. Sleeve bearing fans often don't start > at > > >> > > all till the mid 30% range. > > >> > > > > >> > > Try zero for the first layer or even as high as the third layer > > >> > > before > > >> > > the fan actually starts. I have a ball bearing fan on my BIQU BX > and > > >> > > it runs plenty fast enough at 30% of max in cura for PETG which > > >> > > needs far less cooling than PLA. I don't mess with PLA at all, too > > >> > > brittle. > > >> > > > > >> > > I've also put a diamonback .4mm PCD nozzle in mine so I can use > the > > >> > > carbon fiber filled PETG but haven't yet seen the need for its > > >> > > improved strength. I'm running the nozzle at 252C and the bed at > 90C > > >> > > and my printed air manifold is air tight. Bed adhesion is only a > > >> > > problem getting stuff loose. Its almost too good. If the nozzle is > > >> > > slobbering, check how tight it is, then reduce the flow 2% at a > time > > >> > > to stop the overflow, this PCD nozzle conducts heat into the > > >> > > filament better than brass, melting it better which can increase > the > > >> > > flow. At 245C the part will not be airtight if you need that. At > > >> > > 252C the part gets noticably glossier because its more liquid and > > >> > > bonds well to the next layer down before it cools and solidify's. > > >> > > > > >> > > Take care and stay well John. And my teeny version to be used as > the > > >> > > B > > >> > > axis driver on my 6040 mill, the one that costs around a tenner to > > >> > > make, seems to be pretty solid, got several hundred hours on it > now > > >> > > but it probably going to get another 200 running a hard maple > stick > > >> > > for a woodworkers leg vise screw. I've got to make an idler yet to > > >> > > tighten the belt as that is the only backlash it it. > > >> > > > > >> > > Cheers, Gene Heskett. > > >> > > -- > > >> > > > > >> > > "There are four boxes to be used in defense of liberty: > > >> > > soap, ballot, jury, and ammo. Please use
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
Sam, have you had to soften the final portion of the ballscrew to machine that thread? I've never done it and the ones I'm mounting in the router are fixed (rotating nut). El lun, 21 mar 2022 a las 10:15, Sam Sokolik () escribió: > Sorry - meant to post > https://photos.app.goo.gl/yBNmiD9rRkPCoNgJ8 > > On Mon, Mar 21, 2022 at 7:19 AM Sam Sokolik wrote: > > > Dad ground the ball screw nut.. everything fits nicely under the cross > > slide it seems.. Found a bit of aluminium to make a simple bearing block > > for 2 angular contact bearings.. > > > > https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > > > > On Sun, Mar 20, 2022 at 5:56 PM gene heskett > wrote: > > > >> On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote: > >> > Gene, > >> > The replacement ball bearing fan isn't on the bed fan duct but cools > >> > the top part of the hot end where the filament enters the PTFE lined > >> > feed pipe. > >> > > >> Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle > >> temps, the stuff eventually goes away or leaks badly. Feed it PETG at > >> 240C, goes away in 2 days. All metal hot ends are better, titainium heat > >> breaks even better. Better yet I suspect is the copperhead copper/ > >> titainium combo but like the PCD nozzle, bring real money. > >> > >> > Problem solved which the new blower duct, now not aimed at the hot > end, > >> > did not completely fix. > >> > >> should be aimed at or just below the nozzle tip. > >> > > >> > Wrapped hot end block in insulating paper and Krylon tape. Now nice > >> > flat curves and no drop in temperature even with 98% bed fan speed. > >> > > >> > John > >> > > >> > > -Original Message- > >> > > From: gene heskett [mailto:ghesk...@shentel.net] > >> > > Sent: March-20-22 2:50 PM > >> > > To: Enhanced Machine Controller (EMC) > >> > > Subject: Re: [Emc-users] Because I can't seem to finish anything... > >> > > Nebel lathe conversion.> > >> > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote: > >> > > > Story of my life. Fan failed on 3D printer. Repaired feed tube > >> > > > and > >> > > > replaced with ball bearing fan I had from power supply > >> > > > manufacturing > >> > > > inventory. Almost 1 week later still not working quite the way > it > >> > > > was and the way I want. John > >> > > > >> > > ball bearing fans start easier, leads to over cooling the early > >> > > layers. Change the min speed so its stopped for the 1st layer like > >> > > it used to be at 25% power. Sleeve bearing fans often don't start at > >> > > all till the mid 30% range. > >> > > > >> > > Try zero for the first layer or even as high as the third layer > >> > > before > >> > > the fan actually starts. I have a ball bearing fan on my BIQU BX and > >> > > it runs plenty fast enough at 30% of max in cura for PETG which > >> > > needs far less cooling than PLA. I don't mess with PLA at all, too > >> > > brittle. > >> > > > >> > > I've also put a diamonback .4mm PCD nozzle in mine so I can use the > >> > > carbon fiber filled PETG but haven't yet seen the need for its > >> > > improved strength. I'm running the nozzle at 252C and the bed at 90C > >> > > and my printed air manifold is air tight. Bed adhesion is only a > >> > > problem getting stuff loose. Its almost too good. If the nozzle is > >> > > slobbering, check how tight it is, then reduce the flow 2% at a time > >> > > to stop the overflow, this PCD nozzle conducts heat into the > >> > > filament better than brass, melting it better which can increase the > >> > > flow. At 245C the part will not be airtight if you need that. At > >> > > 252C the part gets noticably glossier because its more liquid and > >> > > bonds well to the next layer down before it cools and solidify's. > >> > > > >> > > Take care and stay well John. And my teeny version to be used as the > >> > > B > >> > > axis driver on my 6040 mill, the one that costs around a tenner to > >> > > make, seems to be pretty solid, got several hundred hours on it now > >> > > but it probably going to get another 200 running a hard maple stick > >> > > for a woodworkers leg vise screw. I've got to make an idler yet to > >> > > tighten the belt as that is the only backlash it it. > >> > > > >> > > 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, 1940) > >> > > If we desire respect for the law, we must first make the law > >> > > respectable.> > >> > > - Louis D. Brandeis > >> > > > >> > > ___ > >> > > Emc-users mailing list > >> > > Emc-users@lists.sourceforge.net > >> > > https://lists.sourceforge.net/lists/listinfo/emc-users > >> > >> > >> Cheers, Gene Heskett. > >> -- > >> "There are four boxes to be used in defense of liberty: >
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
Sorry - meant to post https://photos.app.goo.gl/yBNmiD9rRkPCoNgJ8 On Mon, Mar 21, 2022 at 7:19 AM Sam Sokolik wrote: > Dad ground the ball screw nut.. everything fits nicely under the cross > slide it seems.. Found a bit of aluminium to make a simple bearing block > for 2 angular contact bearings.. > > https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 > > On Sun, Mar 20, 2022 at 5:56 PM gene heskett wrote: > >> On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote: >> > Gene, >> > The replacement ball bearing fan isn't on the bed fan duct but cools >> > the top part of the hot end where the filament enters the PTFE lined >> > feed pipe. >> > >> Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle >> temps, the stuff eventually goes away or leaks badly. Feed it PETG at >> 240C, goes away in 2 days. All metal hot ends are better, titainium heat >> breaks even better. Better yet I suspect is the copperhead copper/ >> titainium combo but like the PCD nozzle, bring real money. >> >> > Problem solved which the new blower duct, now not aimed at the hot end, >> > did not completely fix. >> >> should be aimed at or just below the nozzle tip. >> > >> > Wrapped hot end block in insulating paper and Krylon tape. Now nice >> > flat curves and no drop in temperature even with 98% bed fan speed. >> > >> > John >> > >> > > -Original Message- >> > > From: gene heskett [mailto:ghesk...@shentel.net] >> > > Sent: March-20-22 2:50 PM >> > > To: Enhanced Machine Controller (EMC) >> > > Subject: Re: [Emc-users] Because I can't seem to finish anything... >> > > Nebel lathe conversion.> >> > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote: >> > > > Story of my life. Fan failed on 3D printer. Repaired feed tube >> > > > and >> > > > replaced with ball bearing fan I had from power supply >> > > > manufacturing >> > > > inventory. Almost 1 week later still not working quite the way it >> > > > was and the way I want. John >> > > >> > > ball bearing fans start easier, leads to over cooling the early >> > > layers. Change the min speed so its stopped for the 1st layer like >> > > it used to be at 25% power. Sleeve bearing fans often don't start at >> > > all till the mid 30% range. >> > > >> > > Try zero for the first layer or even as high as the third layer >> > > before >> > > the fan actually starts. I have a ball bearing fan on my BIQU BX and >> > > it runs plenty fast enough at 30% of max in cura for PETG which >> > > needs far less cooling than PLA. I don't mess with PLA at all, too >> > > brittle. >> > > >> > > I've also put a diamonback .4mm PCD nozzle in mine so I can use the >> > > carbon fiber filled PETG but haven't yet seen the need for its >> > > improved strength. I'm running the nozzle at 252C and the bed at 90C >> > > and my printed air manifold is air tight. Bed adhesion is only a >> > > problem getting stuff loose. Its almost too good. If the nozzle is >> > > slobbering, check how tight it is, then reduce the flow 2% at a time >> > > to stop the overflow, this PCD nozzle conducts heat into the >> > > filament better than brass, melting it better which can increase the >> > > flow. At 245C the part will not be airtight if you need that. At >> > > 252C the part gets noticably glossier because its more liquid and >> > > bonds well to the next layer down before it cools and solidify's. >> > > >> > > Take care and stay well John. And my teeny version to be used as the >> > > B >> > > axis driver on my 6040 mill, the one that costs around a tenner to >> > > make, seems to be pretty solid, got several hundred hours on it now >> > > but it probably going to get another 200 running a hard maple stick >> > > for a woodworkers leg vise screw. I've got to make an idler yet to >> > > tighten the belt as that is the only backlash it it. >> > > >> > > 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, 1940) >> > > If we desire respect for the law, we must first make the law >> > > respectable.> >> > > - Louis D. Brandeis >> > > >> > > ___ >> > > Emc-users mailing list >> > > Emc-users@lists.sourceforge.net >> > > https://lists.sourceforge.net/lists/listinfo/emc-users >> >> >> 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, 1940) >> If we desire respect for the law, we must first make the law respectable. >> - Louis D. Brandeis >> >> >> >> >> >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ___ Emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
Dad ground the ball screw nut.. everything fits nicely under the cross slide it seems.. Found a bit of aluminium to make a simple bearing block for 2 angular contact bearings.. https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7 On Sun, Mar 20, 2022 at 5:56 PM gene heskett wrote: > On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote: > > Gene, > > The replacement ball bearing fan isn't on the bed fan duct but cools > > the top part of the hot end where the filament enters the PTFE lined > > feed pipe. > > > Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle > temps, the stuff eventually goes away or leaks badly. Feed it PETG at > 240C, goes away in 2 days. All metal hot ends are better, titainium heat > breaks even better. Better yet I suspect is the copperhead copper/ > titainium combo but like the PCD nozzle, bring real money. > > > Problem solved which the new blower duct, now not aimed at the hot end, > > did not completely fix. > > should be aimed at or just below the nozzle tip. > > > > Wrapped hot end block in insulating paper and Krylon tape. Now nice > > flat curves and no drop in temperature even with 98% bed fan speed. > > > > John > > > > > -Original Message- > > > From: gene heskett [mailto:ghesk...@shentel.net] > > > Sent: March-20-22 2:50 PM > > > To: Enhanced Machine Controller (EMC) > > > Subject: Re: [Emc-users] Because I can't seem to finish anything... > > > Nebel lathe conversion.> > > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote: > > > > Story of my life. Fan failed on 3D printer. Repaired feed tube > > > > and > > > > replaced with ball bearing fan I had from power supply > > > > manufacturing > > > > inventory. Almost 1 week later still not working quite the way it > > > > was and the way I want. John > > > > > > ball bearing fans start easier, leads to over cooling the early > > > layers. Change the min speed so its stopped for the 1st layer like > > > it used to be at 25% power. Sleeve bearing fans often don't start at > > > all till the mid 30% range. > > > > > > Try zero for the first layer or even as high as the third layer > > > before > > > the fan actually starts. I have a ball bearing fan on my BIQU BX and > > > it runs plenty fast enough at 30% of max in cura for PETG which > > > needs far less cooling than PLA. I don't mess with PLA at all, too > > > brittle. > > > > > > I've also put a diamonback .4mm PCD nozzle in mine so I can use the > > > carbon fiber filled PETG but haven't yet seen the need for its > > > improved strength. I'm running the nozzle at 252C and the bed at 90C > > > and my printed air manifold is air tight. Bed adhesion is only a > > > problem getting stuff loose. Its almost too good. If the nozzle is > > > slobbering, check how tight it is, then reduce the flow 2% at a time > > > to stop the overflow, this PCD nozzle conducts heat into the > > > filament better than brass, melting it better which can increase the > > > flow. At 245C the part will not be airtight if you need that. At > > > 252C the part gets noticably glossier because its more liquid and > > > bonds well to the next layer down before it cools and solidify's. > > > > > > Take care and stay well John. And my teeny version to be used as the > > > B > > > axis driver on my 6040 mill, the one that costs around a tenner to > > > make, seems to be pretty solid, got several hundred hours on it now > > > but it probably going to get another 200 running a hard maple stick > > > for a woodworkers leg vise screw. I've got to make an idler yet to > > > tighten the belt as that is the only backlash it it. > > > > > > 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, 1940) > > > If we desire respect for the law, we must first make the law > > > respectable.> > > > - Louis D. Brandeis > > > > > > ___ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > 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, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > > > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
