Re: [Emc-users] ini.fiiles
> http://www.quickfilepost.com/download.do?get=647fa4e602ea153fa1399379c64108ba > http://www.quickfilepost.com/download.do?get=d576ac74852a64a2873d1f43bdd26279 ini files for servo setups also have acceleration settings in the [TRAJ] section, something like this: DEFAULT_ACCELERATION = 80.0 MAX_ACCELERATION = 100.0 are these not needed for stepper systems? or is stepconf leaving them out for some other reason? Anders - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] ini.fiiles
At 06:45 AM 5/28/2008, you wrote: >I know I,m missing something very simple here but: > >If I set max speed to equal feed speed the motors freeze on rapid moves. >With max speed about 15 they just about start turning. If I set max speed >to 20mm/s the motors do rapids move but do not go to the right position. > >There is also a reluctance for all motors to move in positive direction at >lower max speeds > >All this also seems to happen in Mach3 > >Unless anyone can figire this out I am going to rewire the drivers and >power supply with shielded cable and fix them to an aluminium base. > >Aaron May have been mentioned before but that (low speed reluctance) sounds like classic stepper motor resonance problems to me. Do your drives have any adjustments for tuning that out? I have seen a half step unipolar drive where on phase was weak and when accelerating up to speed the motor would sometimes switch directions and end up running (very rough) in the wrong direction. __ Andre' B. Clear Lake, Wi. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] ini.fiiles
I know I,m missing something very simple here but: If I set max speed to equal feed speed the motors freeze on rapid moves. With max speed about 15 they just about start turning. If I set max speed to 20mm/s the motors do rapids move but do not go to the right position. There is also a reluctance for all motors to move in positive direction at lower max speeds All this also seems to happen in Mach3 Unless anyone can figire this out I am going to rewire the drivers and power supply with shielded cable and fix them to an aluminium base. Aaron > - Original Message - > From: "Dave Engvall" <[EMAIL PROTECTED]> > To: "Enhanced Machine Controller (EMC)" > Subject: Re: [Emc-users] ini.fiiles > Date: Tue, 27 May 2008 15:37:38 -0700 > > > Notice that he is stalling on rapids so his max velocity is too high: > but the procedure below should tell him where > to set it. :-) > > Dave > On May 27, 2008, at 3:05 PM, Alex Joni wrote: > > > Aaron, > > > > another way to try this: > > start with the old config (speed at 10 mm/second). > > Do a series of tests with increasing F-words (G1 X100 F100, G1X0 F150, > > etc..) > > Notice when it starts to fall apart, and let us know the speed. > > The ini should hold about 80% of the value divided by 60. > > > > Regards, > > Alex > > > > - Original Message - > > From: "aaron Moore" <[EMAIL PROTECTED]> > > To: "Enhanced Machine Controller (EMC)" > > Sent: Tuesday, May 27, 2008 11:00 PM > > Subject: Re: [Emc-users] ini.fiiles > > > > > >> Rayh > >> > >> I just set the velocity to 4 and acceleration to 4. Feed moves are okay, > >> but the motors just freeze on rapid moves, and I'm tearing my hair out, > >> and > >> the wife is about to divorce me. > >> > >> Thanks > >> Aaron > >> > >> > >> > >> > >>> - Original Message - > >>> From: "Ray Henry" <[EMAIL PROTECTED]> > >>> To: "Enhanced Machine Controller (EMC)" > >>> Subject: Re: [Emc-users] ini.fiiles > >>> Date: Tue, 27 May 2008 09:58:16 -0500 > >>> > >>> > >>> > >>> Hi Aaron > >>> > >>> As I see it the problem is that your config runs the rapids much to fast > >>> for the ability of your hardware. > >>> > >>> MAX_VELOCITY = 10.0 > >>> > >>> Means 10mm per second or 600 mm per minute. If you lower that to > >>> > >>> MAX_VELOCITY = 4.0 > >>> > >>> your rapids will run about 240 mm a minute. Since that is not much > >>> faster than your feedrate you should be okay. But I would not be afraid > >>> to play with the numbers until you discover a combination that moves the > >>> machine about 80% of the speed at which you begin loosing steps. > >>> > >>> HTH > >>> > >>> Rayh > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> On Tue, 2008-05-27 at 14:27 +, aaron Moore wrote: > >>>> Between 100mm and 200mm a minute > >>>> Aaron > >>>>> - Original Message - > >>>>> From: "Kenneth Lerman" <[EMAIL PROTECTED]> > >>>>> To: "Enhanced Machine Controller (EMC)" > >> > >>>>> Subject: Re: [Emc-users] ini.fiiles > >>>>> Date: Tue, 27 May 2008 08:52:04 -0400 > >>>>>>> Alex, as usual, identified a key question. > >>>>>> Just to expand a little, it is important because rapids (G0) use > >> the > >>>>> maximum velocity; but cutting (G1, G2, G3) use the last specified > >> Fword > >>>>> as the velocity. Generally, that will be much slower than the > >> maximum. > >>>>>> So, to repeat Alex's question, what feed rate are you using? > >>>>>> Ken > >>>>>>>> Alex Joni wrote: > >>>>>> What feedrate do you use for cutting? > >>>>>> > >>>>>> Regards, > >>>>>> Alex > >>>>>> > >>>>>> - Original Message - From: "aaron Moore" > >>>> <[EMAIL PROTECTED]> > >>>>>> To: "EMC userslist" > >>>>>> Se
Re: [Emc-users] ini.fiiles
Notice that he is stalling on rapids so his max velocity is too high: but the procedure below should tell him where to set it. :-) Dave On May 27, 2008, at 3:05 PM, Alex Joni wrote: > Aaron, > > another way to try this: > start with the old config (speed at 10 mm/second). > Do a series of tests with increasing F-words (G1 X100 F100, G1X0 F150, > etc..) > Notice when it starts to fall apart, and let us know the speed. > The ini should hold about 80% of the value divided by 60. > > Regards, > Alex > > - Original Message - > From: "aaron Moore" <[EMAIL PROTECTED]> > To: "Enhanced Machine Controller (EMC)" [EMAIL PROTECTED]> > Sent: Tuesday, May 27, 2008 11:00 PM > Subject: Re: [Emc-users] ini.fiiles > > >> Rayh >> >> I just set the velocity to 4 and acceleration to 4. Feed moves >> are okay, >> but the motors just freeze on rapid moves, and I'm tearing my hair >> out, >> and >> the wife is about to divorce me. >> >> Thanks >> Aaron >> >> >> >> >>> - Original Message - >>> From: "Ray Henry" <[EMAIL PROTECTED]> >>> To: "Enhanced Machine Controller (EMC)" >> [EMAIL PROTECTED]> >>> Subject: Re: [Emc-users] ini.fiiles >>> Date: Tue, 27 May 2008 09:58:16 -0500 >>> >>> >>> >>> Hi Aaron >>> >>> As I see it the problem is that your config runs the rapids much >>> to fast >>> for the ability of your hardware. >>> >>> MAX_VELOCITY = 10.0 >>> >>> Means 10mm per second or 600 mm per minute. If you lower that to >>> >>> MAX_VELOCITY = 4.0 >>> >>> your rapids will run about 240 mm a minute. Since that is not much >>> faster than your feedrate you should be okay. But I would not be >>> afraid >>> to play with the numbers until you discover a combination that >>> moves the >>> machine about 80% of the speed at which you begin loosing steps. >>> >>> HTH >>> >>> Rayh >>> >>> >>> >>> >>> >>> >>> >>> On Tue, 2008-05-27 at 14:27 +, aaron Moore wrote: >>>> Between 100mm and 200mm a minute >>>> Aaron >>>>> - Original Message - >>>>> From: "Kenneth Lerman" <[EMAIL PROTECTED]> >>>>> To: "Enhanced Machine Controller (EMC)" >> >>>>> Subject: Re: [Emc-users] ini.fiiles >>>>> Date: Tue, 27 May 2008 08:52:04 -0400 >>>>>>> Alex, as usual, identified a key question. >>>>>> Just to expand a little, it is important because rapids (G0) use >> the >>>>> maximum velocity; but cutting (G1, G2, G3) use the last specified >> Fword >>>>> as the velocity. Generally, that will be much slower than the >> maximum. >>>>>> So, to repeat Alex's question, what feed rate are you using? >>>>>> Ken >>>>>>>> Alex Joni wrote: >>>>>> What feedrate do you use for cutting? >>>>>> >>>>>> Regards, >>>>>> Alex >>>>>> >>>>>> - Original Message - From: "aaron Moore" >>>> <[EMAIL PROTECTED]> >>>>>> To: "EMC userslist" >>>>>> Sent: Tuesday, May 27, 2008 10:24 AM >>>>>> Subject: [Emc-users] ini.fiiles >>>>>> >>>>>> >>>>>>> Hi >>>>>>> Could someone have a look at my ini. files to see if I am >>>> missing something. >>>>>>> >>>>>>> Still have the same problem with my stepper router system. >>>>>>> Cutting moves seem to go okay, but rapid moves screw the >>>> plot up >>>>>>> completely even when max vel and max acc are the same as >>>> cutting > >> speed. I am going to rewire drivers and powersupply >>>> with > >> shielded >>>>>>> cable and fix them to an aluminium backing board, but in the >>>>>>> mean time do these files look okay? >>>>>>> >>>>>>> Also steppconfig wizard still will not test my axis although >>>> it > >> will change config files. >>>>>>> >>>>>>> >>>> >> http://www.quickfilepost.com/download.do?
Re: [Emc-users] ini.fiiles
Aaron, another way to try this: start with the old config (speed at 10 mm/second). Do a series of tests with increasing F-words (G1 X100 F100, G1X0 F150, etc..) Notice when it starts to fall apart, and let us know the speed. The ini should hold about 80% of the value divided by 60. Regards, Alex - Original Message - From: "aaron Moore" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" Sent: Tuesday, May 27, 2008 11:00 PM Subject: Re: [Emc-users] ini.fiiles > Rayh > > I just set the velocity to 4 and acceleration to 4. Feed moves are okay, > but the motors just freeze on rapid moves, and I'm tearing my hair out, > and > the wife is about to divorce me. > > Thanks > Aaron > > > > >> - Original Message - >> From: "Ray Henry" <[EMAIL PROTECTED]> >> To: "Enhanced Machine Controller (EMC)" >> Subject: Re: [Emc-users] ini.fiiles >> Date: Tue, 27 May 2008 09:58:16 -0500 >> >> >> >> Hi Aaron >> >> As I see it the problem is that your config runs the rapids much to fast >> for the ability of your hardware. >> >> MAX_VELOCITY = 10.0 >> >> Means 10mm per second or 600 mm per minute. If you lower that to >> >> MAX_VELOCITY = 4.0 >> >> your rapids will run about 240 mm a minute. Since that is not much >> faster than your feedrate you should be okay. But I would not be afraid >> to play with the numbers until you discover a combination that moves the >> machine about 80% of the speed at which you begin loosing steps. >> >> HTH >> >> Rayh >> >> >> >> >> >> >> >> On Tue, 2008-05-27 at 14:27 +, aaron Moore wrote: >> > Between 100mm and 200mm a minute >> > Aaron >> > > - Original Message - >> > > From: "Kenneth Lerman" <[EMAIL PROTECTED]> >> > > To: "Enhanced Machine Controller (EMC)" > >> > > Subject: Re: [Emc-users] ini.fiiles >> > > Date: Tue, 27 May 2008 08:52:04 -0400 >> > > > > Alex, as usual, identified a key question. >> > > > Just to expand a little, it is important because rapids (G0) use > the >> > > maximum velocity; but cutting (G1, G2, G3) use the last specified > Fword >> > > as the velocity. Generally, that will be much slower than the > maximum. >> > > > So, to repeat Alex's question, what feed rate are you using? >> > > > Ken >> > > > > > Alex Joni wrote: >> > > > What feedrate do you use for cutting? >> > > > >> > > > Regards, >> > > > Alex >> > > > >> > > > - Original Message - From: "aaron Moore" >> > <[EMAIL PROTECTED]> >> > > > To: "EMC userslist" >> > > > Sent: Tuesday, May 27, 2008 10:24 AM >> > > > Subject: [Emc-users] ini.fiiles >> > > > >> > > > >> > > >> Hi >> > > >> Could someone have a look at my ini. files to see if I am >> > missing something. >> > > >> >> > > >> Still have the same problem with my stepper router system. >> > > >> Cutting moves seem to go okay, but rapid moves screw the >> > plot up >> > > >> completely even when max vel and max acc are the same as >> > cutting > >> speed. I am going to rewire drivers and powersupply >> > with > >> shielded >> > > >> cable and fix them to an aluminium backing board, but in the >> > > >> mean time do these files look okay? >> > > >> >> > > >> Also steppconfig wizard still will not test my axis although >> > it > >> will change config files. >> > > >> >> > > >> >> > > http://www.quickfilepost.com/download.do?get=647fa4e602ea153fa1399379c64108ba >> > > >> >> > > http://www.quickfilepost.com/download.do?get=d576ac74852a64a2873d1f43bdd26279 >> > > >> >> > > >> Thanks to all >> > > >> >> > > >> Aaron >> > > >> >> > > > >> > > > >> > > >> - >> > > > This SF.net email is sponsored by: Microsoft >> > > > Defy all challenges. Microsoft(R) Visual Studio 2008. >> > > > http://clk.atdmt.com/MRT/go/
Re: [Emc-users] ini.fiiles
Try running it at 80% feed override and see if it works okay. Rayh On Tue, 2008-05-27 at 20:00 +, aaron Moore wrote: > Rayh > > I just set the velocity to 4 and acceleration to 4. Feed moves are okay, > but the motors just freeze on rapid moves, and I'm tearing my hair out, and > the wife is about to divorce me. > > Thanks > Aaron > > > > > > - Original Message - > > From: "Ray Henry" <[EMAIL PROTECTED]> > > To: "Enhanced Machine Controller (EMC)" > > Subject: Re: [Emc-users] ini.fiiles > > Date: Tue, 27 May 2008 09:58:16 -0500 > > > > > > > > Hi Aaron > > > > As I see it the problem is that your config runs the rapids much to fast > > for the ability of your hardware. > > > > MAX_VELOCITY = 10.0 > > > > Means 10mm per second or 600 mm per minute. If you lower that to > > > > MAX_VELOCITY = 4.0 > > > > your rapids will run about 240 mm a minute. Since that is not much > > faster than your feedrate you should be okay. But I would not be afraid > > to play with the numbers until you discover a combination that moves the > > machine about 80% of the speed at which you begin loosing steps. > > > > HTH > > > > Rayh > > > > > > > > > > > > > > > > On Tue, 2008-05-27 at 14:27 +, aaron Moore wrote: > > > Between 100mm and 200mm a minute > > > Aaron > > > > - Original Message - > > > > From: "Kenneth Lerman" <[EMAIL PROTECTED]> > > > > To: "Enhanced Machine Controller (EMC)" > > > > > Subject: Re: [Emc-users] ini.fiiles > > > > Date: Tue, 27 May 2008 08:52:04 -0400 > > > > > > Alex, as usual, identified a key question. > > > > > Just to expand a little, it is important because rapids (G0) use > the > > > > maximum velocity; but cutting (G1, G2, G3) use the last specified > Fword > > > > as the velocity. Generally, that will be much slower than the > maximum. > > > > > So, to repeat Alex's question, what feed rate are you using? > > > > > Ken > > > > > > > Alex Joni wrote: > > > > > What feedrate do you use for cutting? > > > > > > > > > > Regards, > > > > > Alex > > > > > > > > > > - Original Message - From: "aaron Moore" > > > <[EMAIL PROTECTED]> > > > > > To: "EMC userslist" > > > > > Sent: Tuesday, May 27, 2008 10:24 AM > > > > > Subject: [Emc-users] ini.fiiles > > > > > > > > > > > > > > >> Hi > > > > >> Could someone have a look at my ini. files to see if I am > > > missing something. > > > > >> > > > > >> Still have the same problem with my stepper router system. > > > > >> Cutting moves seem to go okay, but rapid moves screw the > > > plot up > > > > >> completely even when max vel and max acc are the same as > > > cutting > >> speed. I am going to rewire drivers and powersupply > > > with > >> shielded > > > > >> cable and fix them to an aluminium backing board, but in the > > > > >> mean time do these files look okay? > > > > >> > > > > >> Also steppconfig wizard still will not test my axis although > > > it > >> will change config files. > > > > >> > > > > >> > > > > http://www.quickfilepost.com/download.do?get=647fa4e602ea153fa1399379c64108ba > > > > >> > > > > http://www.quickfilepost.com/download.do?get=d576ac74852a64a2873d1f43bdd26279 > > > > >> > > > > >> Thanks to all > > > > >> > > > > >> Aaron > > > > >> > > > > > > > > > > > > > > > > - > > > > > This SF.net email is sponsored by: Microsoft > > > > > Defy all challenges. Microsoft(R) Visual Studio 2008. > > > > > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > > > > > ___ > > > > > Emc-users mailing list > > > > > Emc-users@lists.sourceforge.net > > > > > https://lists.sourcef
Re: [Emc-users] ini.fiiles
Rayh I just set the velocity to 4 and acceleration to 4. Feed moves are okay, but the motors just freeze on rapid moves, and I'm tearing my hair out, and the wife is about to divorce me. Thanks Aaron > - Original Message - > From: "Ray Henry" <[EMAIL PROTECTED]> > To: "Enhanced Machine Controller (EMC)" > Subject: Re: [Emc-users] ini.fiiles > Date: Tue, 27 May 2008 09:58:16 -0500 > > > > Hi Aaron > > As I see it the problem is that your config runs the rapids much to fast > for the ability of your hardware. > > MAX_VELOCITY = 10.0 > > Means 10mm per second or 600 mm per minute. If you lower that to > > MAX_VELOCITY = 4.0 > > your rapids will run about 240 mm a minute. Since that is not much > faster than your feedrate you should be okay. But I would not be afraid > to play with the numbers until you discover a combination that moves the > machine about 80% of the speed at which you begin loosing steps. > > HTH > > Rayh > > > > > > > > On Tue, 2008-05-27 at 14:27 +, aaron Moore wrote: > > Between 100mm and 200mm a minute > > Aaron > > > - Original Message - > > > From: "Kenneth Lerman" <[EMAIL PROTECTED]> > > > To: "Enhanced Machine Controller (EMC)" > > > Subject: Re: [Emc-users] ini.fiiles > > > Date: Tue, 27 May 2008 08:52:04 -0400 > > > > > Alex, as usual, identified a key question. > > > > Just to expand a little, it is important because rapids (G0) use the > > > maximum velocity; but cutting (G1, G2, G3) use the last specified Fword > > > as the velocity. Generally, that will be much slower than the maximum. > > > > So, to repeat Alex's question, what feed rate are you using? > > > > Ken > > > > > > Alex Joni wrote: > > > > What feedrate do you use for cutting? > > > > > > > > Regards, > > > > Alex > > > > > > > > - Original Message - From: "aaron Moore" > > <[EMAIL PROTECTED]> > > > > To: "EMC userslist" > > > > Sent: Tuesday, May 27, 2008 10:24 AM > > > > Subject: [Emc-users] ini.fiiles > > > > > > > > > > > >> Hi > > > >> Could someone have a look at my ini. files to see if I am > > missing something. > > > >> > > > >> Still have the same problem with my stepper router system. > > > >> Cutting moves seem to go okay, but rapid moves screw the > > plot up > > > >> completely even when max vel and max acc are the same as > > cutting > >> speed. I am going to rewire drivers and powersupply > > with > >> shielded > > > >> cable and fix them to an aluminium backing board, but in the > > > >> mean time do these files look okay? > > > >> > > > >> Also steppconfig wizard still will not test my axis although > > it > >> will change config files. > > > >> > > > >> > > http://www.quickfilepost.com/download.do?get=647fa4e602ea153fa1399379c64108ba > > > >> > > http://www.quickfilepost.com/download.do?get=d576ac74852a64a2873d1f43bdd26279 > > > >> > > > >> Thanks to all > > > >> > > > >> Aaron > > > >> > > > > > > > > > > > > - > > > > This SF.net email is sponsored by: Microsoft > > > > Defy all challenges. Microsoft(R) Visual Studio 2008. > > > > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > > > > ___ > > > > Emc-users mailing list > > > > Emc-users@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > -- > > > Kenneth Lerman > > > Mark Kenny Products Company, LLC > > > 55 Main Street > > > Newtown, CT 06470 > > > 888-ISO-SEVO > > > 203-426-7166 > > > > - > > > This SF.net email is sponsored by: Microsoft > > > Defy all challenges. Microsoft(R) Visual Studio 2008. > > > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > > > ___ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > > > > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Powered by Outblaze - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
