Re: [Emc-users] Laser measurement sensor
On Sunday, 20 March 2022 23:59:14 EDT Thaddeus Waldner wrote: > Update on the laser probe. > > Thanks to some input from this group and a discussion with Peter at > Mesa tech, I now have a laser distance measuring device reading to > within 0.001”. The range of my instrument is about 2” and I need only > about 1/2”, so I can get the precision down to 1/4 of that. Not that I > need it. > > As I mentioned earlier, the laser instrument is a Keyence > iA-1000/iA-060. The output from this device is a scalable analog > 0.5-4V signal. > > I built a small board that powers the laser, converts the voltage to a > frequency, and feeds signal into an encoder configured for count mode. > 24v Power enters the board via a pair of screw terminals. This power > is filtered, regulated, then brought out to the laser. The analog > voltage signal is converted to a frequency signal, which then goes > through an isolator and is delivered to the mesa board via the P1 > expansion socket > > I used an Analog Devices AD7741 voltage to frequency converter. This > device needs to be clocked with either a clock input or a crystal. I > used a step generator output for this. > > The isolator I used is a NVE IL-712-2E. This is a 2-channel “digital > isolator” with channels running in opposite directions. This device is > remarkably fast; propagation delay is 15ns and max pulse width > distortion is 3ns. I have never before heard of digital isolators. > Are > they a new thing? Any reason why not to use them over optical > isolators? Not particularly, TI has been making something like that for a couple decades. But at the time I considered using it, it wasn't functional at DC and I needed that more than the speed. If they'll do DC, the only reason not to use them would be cost. But theres a point of no return for that great speed, driving a stepper, which has inductance just like a 3 phase motor being driven by a 255 volt source, the inductance of the motor is limiting the field current to less than an amp at 200 hertz, so the torque vanishes about then unless your vfd is fed from a much higher line voltage. Because the electrolytic caps in the vfd can only take around 450 volts continuously, the line voltage limits are hit at about 380 volts, which still isn't enough to get you all the way to 400hz out of the vfd with any torque left, not to mention the possability of exploding the fan in the motor since a 4 pole, 3 phase motor is turning 12000 rpms at 400 hz. Most are made to run till the rapture at 1750. At my place, the rotor balance if iffy, and 6000 revs is beating the motor bearings pretty hard. > > If I had been smart, I would have just purchased a mesa THCAD card. I > would have accomplished more but learned less. > > Thaddeus Waldner > > > ___ > 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] Laser measurement sensor
Update on the laser probe. Thanks to some input from this group and a discussion with Peter at Mesa tech, I now have a laser distance measuring device reading to within 0.001”. The range of my instrument is about 2” and I need only about 1/2”, so I can get the precision down to 1/4 of that. Not that I need it. As I mentioned earlier, the laser instrument is a Keyence iA-1000/iA-060. The output from this device is a scalable analog 0.5-4V signal. I built a small board that powers the laser, converts the voltage to a frequency, and feeds signal into an encoder configured for count mode. 24v Power enters the board via a pair of screw terminals. This power is filtered, regulated, then brought out to the laser. The analog voltage signal is converted to a frequency signal, which then goes through an isolator and is delivered to the mesa board via the P1 expansion socket I used an Analog Devices AD7741 voltage to frequency converter. This device needs to be clocked with either a clock input or a crystal. I used a step generator output for this. The isolator I used is a NVE IL-712-2E. This is a 2-channel “digital isolator” with channels running in opposite directions. This device is remarkably fast; propagation delay is 15ns and max pulse width distortion is 3ns. I have never before heard of digital isolators. Are they a new thing? Any reason why not to use them over optical isolators? If I had been smart, I would have just purchased a mesa THCAD card. I would have accomplished more but learned less. Thaddeus Waldner ___ 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 Sunday, 20 March 2022 19:32:58 EDT Sam Sokolik wrote: > Groan... ;) > > On Sun, Mar 20, 2022, 6:02 PM Ralph Stirling > > wrote: > > Sam, when you finish the lathe project we'll give you the Nebel > > prize. > > I must be from out of town, and missed that one. > > -- Ralph > > > > On Mar 18, 2022 7:33 AM, Sam Sokolik wrote: > > CAUTION: This email originated from outside the Walla Walla > > University > > email system. > > > > > > Thought about it... :) > > > > On Fri, Mar 18, 2022 at 4:50 AM andy pugh wrote: > > > On Fri, 18 Mar 2022 at 03:11, Sam Sokolik wrote: > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > .youtube.com%2Fwatch%3Fv%3Dmes7pFZ90Fg&data=04%7C01%7Cralph.stirl > > ing%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7Cd958f048e43 > > 142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnknown%7CTWFpbG > > Zsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0 > > %3D%7C3000&sdata=oPrGMdVC%2BNxOQEWA3q8SROJWCwju8%2BTSFUUK3JVYtFY% > > 3D&reserved=0> > > > If you fitted linear scales you could potentially have manual > > > rapids > > > by disengaging the half-nuts. > > > > > > > > > > > > -- > > > 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://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flis > > ts.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7C > > ralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7C > > d958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnkno > > wn%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi > > LCJXVCI6Mn0%3D%7C3000&sdata=%2Brr%2FME0qr5Sbo1LtzJ4Lu%2Fy2TkKGgPd > > llyJeThdp45A%3D&reserved=0 > > > > > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flis > > ts.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7C > > ralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7C > > d958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnkno > > wn%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi > > LCJXVCI6Mn0%3D%7C3000&sdata=%2Brr%2FME0qr5Sbo1LtzJ4Lu%2Fy2TkKGgPd > > llyJeThdp45A%3D&reserved=0 > > > > > > ___ > > 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. -- "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.
Groan... ;) On Sun, Mar 20, 2022, 6:02 PM Ralph Stirling wrote: > Sam, when you finish the lathe project we'll give you the Nebel prize. > > -- Ralph > > On Mar 18, 2022 7:33 AM, Sam Sokolik wrote: > CAUTION: This email originated from outside the Walla Walla University > email system. > > > Thought about it... :) > > On Fri, Mar 18, 2022 at 4:50 AM andy pugh wrote: > > > On Fri, 18 Mar 2022 at 03:11, Sam Sokolik wrote: > > > > > > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dmes7pFZ90Fg&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=oPrGMdVC%2BNxOQEWA3q8SROJWCwju8%2BTSFUUK3JVYtFY%3D&reserved=0 > > > > If you fitted linear scales you could potentially have manual rapids > > by disengaging the half-nuts. > > > > > > > > -- > > 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://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=%2Brr%2FME0qr5Sbo1LtzJ4Lu%2Fy2TkKGgPdllyJeThdp45A%3D&reserved=0 > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=%2Brr%2FME0qr5Sbo1LtzJ4Lu%2Fy2TkKGgPdllyJeThdp45A%3D&reserved=0 > > > ___ > 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.
Sam, when you finish the lathe project we'll give you the Nebel prize. -- Ralph On Mar 18, 2022 7:33 AM, Sam Sokolik wrote: CAUTION: This email originated from outside the Walla Walla University email system. Thought about it... :) On Fri, Mar 18, 2022 at 4:50 AM andy pugh wrote: > On Fri, 18 Mar 2022 at 03:11, Sam Sokolik wrote: > > > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dmes7pFZ90Fg&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=oPrGMdVC%2BNxOQEWA3q8SROJWCwju8%2BTSFUUK3JVYtFY%3D&reserved=0 > > If you fitted linear scales you could potentially have manual rapids > by disengaging the half-nuts. > > > > -- > 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://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=%2Brr%2FME0qr5Sbo1LtzJ4Lu%2Fy2TkKGgPdllyJeThdp45A%3D&reserved=0 > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Cralph.stirling%40wallawalla.edu%7C8d6e90e3bcac4a82508b08da08ec387c%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637832107926025651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=%2Brr%2FME0qr5Sbo1LtzJ4Lu%2Fy2TkKGgPdllyJeThdp45A%3D&reserved=0 ___ 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 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] build problem on buster
Greetings all; My build lcnc on the pi scripts have died. complaint spit out is: Makefile:594: *** You configured run-in-place, but are trying to install. For an installable version, run configure without --enable-run-in-place and rebuild. Stop. make[2]: Leaving directory '/media/pi/workspace/linuxcnc-dev/src' make[1]: *** [debian/rules:71: override_dh_auto_install] Error 2 make[1]: Leaving directory '/media/pi/workspace/linuxcnc-dev' make: *** [debian/rules:39: binary] Error 2 dpkg-buildpackage: error: fakeroot debian/rules binary subprocess returned exit status 2 but there is no run-in-place in the ./configure args, just 'uspace'. And line 39 of debian/rules now reads: dh $@ --parallel while line 71 reads from line 67: override_dh_auto_install: # avoid installing into already existing directory rm -rf $(DESTDIR) # executing regular installation with regular prefix but unterneath the debian folder DESTDIR=$(DESTDIR) $(MAKE) -C src install What can I do to restore the former function buster has had for 2 years? 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.
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. Problem solved which the new blower duct, now not aimed at the hot end, did not completely fix. 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 ___ 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 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
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
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 > From: Sam Sokolik [mailto:samco...@gmail.com] > > Haven't actually machined anything with the rotary axis yet. Got side > tracked again... No issues so far though.. > > > > On Sat, Mar 19, 2022 at 9:18 PM John Dammeyer > wrote: > > > Hey Sam, > > Speaking of finishing things. Do you ever use your 3D printed reduction > > drive? You did all the testing that ensured it was tough and reliable. > > Just wondering if it's now a permanent tool. > > > > John > > > > > > > -Original Message- > > > From: Sam Sokolik [mailto:samco...@gmail.com] > > > Sent: March-17-22 8:07 PM > > > To: Enhanced Machine Controller (EMC) > > > Subject: [Emc-users] Because I can't seem to finish anything... Nebel > > lathe conversion. > > > > > > https://www.youtube.com/watch?v=mes7pFZ90Fg > > > > > > Have the x axis ball screw mostly figured out... > > > > > > https://photos.app.goo.gl/ddodLA6dFu7Cdamv9 > > > > > > https://photos.app.goo.gl/9Wmha6zWBcSewhLv8 > > > > > > The ball nut flange needs a bit removed... > > > > > > sam > > > > > > ___ > > > 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 > > > > ___ > 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.
Haven't actually machined anything with the rotary axis yet. Got side tracked again... No issues so far though.. On Sat, Mar 19, 2022 at 9:18 PM John Dammeyer wrote: > Hey Sam, > Speaking of finishing things. Do you ever use your 3D printed reduction > drive? You did all the testing that ensured it was tough and reliable. > Just wondering if it's now a permanent tool. > > John > > > > -Original Message- > > From: Sam Sokolik [mailto:samco...@gmail.com] > > Sent: March-17-22 8:07 PM > > To: Enhanced Machine Controller (EMC) > > Subject: [Emc-users] Because I can't seem to finish anything... Nebel > lathe conversion. > > > > https://www.youtube.com/watch?v=mes7pFZ90Fg > > > > Have the x axis ball screw mostly figured out... > > > > https://photos.app.goo.gl/ddodLA6dFu7Cdamv9 > > > > https://photos.app.goo.gl/9Wmha6zWBcSewhLv8 > > > > The ball nut flange needs a bit removed... > > > > sam > > > > ___ > > 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 > ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
