Re: [Emc-users] Macro Language
On Wed, 15 Aug 2007, Sven Mueller wrote: sssnap! Also, as I mentioned in my previous mail, it's not clear how you need to wire the probe in hal: which input triggers the G38.2 to stop and print the position? I couldn't find that mentioned in the docs. motion.probe-input see http://www.linuxcnc.org/docs/html/config/emc2hal/index.html Finally: I'm not necessarily talking about scripting in the place where currently Gcode is executed. Me either! I don't think gcode would play well with a more free-form language because of its weird syntax requirements. I think of g-code as more of a data format than a programming language. Whether it's human readable or not is irrelevant to the computer, and that's partly why we ended up with such an unreadable mess. Mostly my call for a macro language was because I couldn't read any g-code programs with lots of numeric variables. Well documented script (perl, lua, ruby, python) language bindings to the movement and IO parts of emc2 would work just as well for me. Definitely - the less wheel-reinventing the better. Getting a real full-featured programming language is a nice side effect! I started thinking about how best to write a Python API for EMC. Didn't get very far, but I think the general idea is sound. In short, I'd rather have the script actually running the machine than just spitting out g-code to feed the g-code parser. Please take a look here and add your comments: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?PythonBindings Actually, what I would like to see is some relatively optimized version of surface scanning implemented with a GUI (perhaps in tkEMC or one of the other GUIs?). Since the existing GUIs already allow manual movements, I would think that all I would like to see (enter a position directly or by doing a manual movement, multiple scan passes with differently sized probe tips,...) should be possible using the same techniques currently used in the GUIs. Though I'm relatively good at C programming as well as Perl programming, I don't know how to build an interface between the two or how to use tcl. i hacked together a probing gui for weyland a while ago based on gridprobe.ngc available here: http://fenn.dyndns.org/pub/emc/probebuddy.tgz it's certainly not the most robust code ever.. my first attempt at tcl. i wonder if i should check it into cvs. -fenn - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Proglem with EMC script - understanding error message
Hi, While I have been playing around with EMC since its invention, I have only recently started to use it seriously as I've only recently finished (as though it will ever be 'finished') a little cnc milling machine for making parts for the antique watches I restore and other miniature parts. I have been trying to work out a 'universal' script to allow me to mill tiny pinions but I've hit a problem in that it is giving me an error message I don't understand - I do wish that the developers of EMC would address the understandability of the various error messages to we simple users The machine is set up to use axes XYZA in metric with the 'A' axis set parallel to the 'Y' axis in this case so that the end of the work is clearly visible. The finished pinion OD is 1.40mm and it has 5 leaves of cycloidal profile - radial flanks with semicircular tips. The intention of the script is to use a miniature slitting saw 0.09mm thick to cut first one flank of each leaf, then the other flank and then to round over each side of the tips by taking cuts at 10 degree increments. I would ideally have liked to work out a way to make the tips continuously rounded but I don't seem to be able to find a way to do this over the length of the pinion - i.e. I could do it by sending the X, Z and A axes to a finishing point simultaneously and produce a rounded surface at one point on the length of the pinion but this would then have to be repeated many times to get a continuous edge. Anyway, here is the script... the error message I am getting is near line 2 unknown word where unary operation could be - does this refer to line 2 of the script i.e. a problem amongst the variables, or is it a problem with line 0200 of the part of the script that runs and why does it say that a 'unary operation 'could' be there'? Any help would be very much appreciated Ian #D = 1.4( o.d ) #R = 0.38(root dia) #C = [[[#D] - [#R]] / 2](cut depth) #N = 5(number of teeth) #L = 4(lenght of cut) #A = [360/[#N#]](angular increment) #V = 0.09(cutter thickness) #Q = 1(counter) #T = 1(tooth counter) #S = 10(step angle for rounding) #r = [[#D]/2](radius of work) #I = 10(increment for rounding steps) #F = 90(final arc angle) o100 sub(cuts one slot in blank) G1 X[[#C]/2] F4 Y[#L] Y-[#L] X[#C] Y[#L] Y-[#L] endsub o200 sub(rounds half top of pinion leaf in several steps) do Z[[sin[#S]/[#r]] X[[cos[#S]/[#r]] G1 Y[#L] F4 G0 Y-[L] A[#I] #S = [[#S]+[#I]] while [#S] LT [#F] endsub o300 sub(rounds other half top of pinion leaf in several steps) do Z-[[sin[#S]/[#r]] X[[cos[#S]/[#r]] G1 Y[#L] F4 G0 Y-[L] A-[#I] #S = [[#S]+[#I]] while [#S] LT [#F] endsub N0100 G92 X0 Y0 Z0(set axes to zero) N0200 G21 G91(metric units, incremental moves) N0300 do(first cut of pinion leaves) N0400 o100 call N0500 #Q = [#Q] + 1(increment counter) N0600 A[360/[#N]](rotate work one tooth distance) N0700 while #Q LT 5 (should this be 6?) N0800 #Q = 1(set counter back to 1) N0900 A-[[#A]/3](rotate by thickness of pinion leaf and) N1000 Z[#V](move cutter - saw - to other side of leaf) N1100 do(cut other side of pinion leaves) N1200 o100 call N1300 #Q = [#Q] + 1 N1400 A-[360/[#N]] N1500 while #Q LT 5 N1600 #Q = 1(set counter back to 1) N1700 A[[#A]/6](move cutter to centre of leaf) N1800 Z-[[#V]/2]( ) N1900 do(round over half the leaf and repeat for all leaves) N2000 o200 call N2100 #Q = [#Q] + 1 N2200 A[360/[#N]] N2300 while #Q LT 5 N2400 #Q = 1(set counter back to 1) N2500 Z0 A-90(set cutter and pinion leaf back to centre) N2600 Z[[#V#/2] N2700 do(round over other half the leaf and repeat for all leaves) N2800 o300 call N2900 #Q = [#Q] + 1 N3000 A-[360/[#N]] N3100 while #Q LT 5 N3200 #Q = 1(clean up) N3300 X-20 Z40 Y50(retract tool) N3200 G40 - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
When emc shows an error message with a line number, it refers to the physical line number in the file, not an O- or N-number. In emc 2.1, parameters are numbers, not letters. So, for instance, you can't write #D=1.4 you must write #7=1.4 and remember that later on, #7 refers to the o.d. of the part you're making. I spotted another error further down: Y-[#L] Unfortunately emc2 gcode omits the negation operator. You could write this as Y[-1*#8] or Y[0-#8] but what you wrote will not be accepted. Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
On Thursday 16 August 2007, [EMAIL PROTECTED] wrote: Hi, While I have been playing around with EMC since its invention, I have only recently started to use it seriously as I've only recently finished (as though it will ever be 'finished') a little cnc milling machine for making parts for the antique watches I restore and other miniature parts. I have been trying to work out a 'universal' script to allow me to mill tiny pinions but I've hit a problem in that it is giving me an error message I don't understand - I do wish that the developers of EMC would address the understandability of the various error messages to we simple users The machine is set up to use axes XYZA in metric with the 'A' axis set parallel to the 'Y' axis in this case so that the end of the work is clearly visible. The finished pinion OD is 1.40mm and it has 5 leaves of cycloidal profile - radial flanks with semicircular tips. The intention of the script is to use a miniature slitting saw 0.09mm thick to cut first one flank of each leaf, then the other flank and then to round over each side of the tips by taking cuts at 10 degree increments. I would ideally have liked to work out a way to make the tips continuously rounded but I don't seem to be able to find a way to do this over the length of the pinion - i.e. I could do it by sending the X, Z and A axes to a finishing point simultaneously and produce a rounded surface at one point on the length of the pinion but this would then have to be repeated many times to get a continuous edge. Anyway, here is the script... the error message I am getting is near line 2 unknown word where unary operation could be - does this refer to line 2 of the script i.e. a problem amongst the variables, or is it a problem with line 0200 of the part of the script that runs and why does it say that a 'unary operation 'could' be there'? Any help would be very much appreciated Ian #D = 1.4( o.d ) #R = 0.38(root dia) #C = [[[#D] - [#R]] / 2](cut depth) #N = 5(number of teeth) #L = 4(lenght of cut) #A = [360/[#N#]](angular increment) #V = 0.09(cutter thickness) #Q = 1(counter) #T = 1(tooth counter) #S = 10(step angle for rounding) #r = [[#D]/2](radius of work) #I = 10(increment for rounding steps) #F = 90(final arc angle) o100 sub(cuts one slot in blank) G1 X[[#C]/2] F4 Y[#L] Y-[#L] X[#C] Y[#L] Y-[#L] endsub o200 sub(rounds half top of pinion leaf in several steps) do Z[[sin[#S]/[#r]] X[[cos[#S]/[#r]] G1 Y[#L] F4 G0 Y-[L] A[#I] #S = [[#S]+[#I]] while [#S] LT [#F] endsub o300 sub(rounds other half top of pinion leaf in several steps) do Z-[[sin[#S]/[#r]] X[[cos[#S]/[#r]] G1 Y[#L] F4 G0 Y-[L] A-[#I] #S = [[#S]+[#I]] while [#S] LT [#F] endsub N0100 G92 X0 Y0 Z0(set axes to zero) N0200 G21 G91(metric units, incremental moves) N0300 do(first cut of pinion leaves) N0400 o100 call N0500 #Q = [#Q] + 1(increment counter) N0600 A[360/[#N]](rotate work one tooth distance) N0700 while #Q LT 5 (should this be 6?) N0800 #Q = 1(set counter back to 1) N0900 A-[[#A]/3](rotate by thickness of pinion leaf and) N1000 Z[#V](move cutter - saw - to other side of leaf) N1100 do(cut other side of pinion leaves) N1200 o100 call N1300 #Q = [#Q] + 1 N1400 A-[360/[#N]] N1500 while #Q LT 5 N1600 #Q = 1(set counter back to 1) N1700 A[[#A]/6](move cutter to centre of leaf) N1800 Z-[[#V]/2]( ) N1900 do(round over half the leaf and repeat for all leaves) N2000 o200 call N2100 #Q = [#Q] + 1 N2200 A[360/[#N]] N2300 while #Q LT 5 N2400 #Q = 1(set counter back to 1) N2500 Z0 A-90(set cutter and pinion leaf back to centre) N2600 Z[[#V#/2] N2700 do(round over other half the leaf and repeat for all leaves) N2800 o300 call N2900 #Q = [#Q] + 1 N3000 A-[360/[#N]] N3100 while #Q LT 5 N3200 #Q = 1(clean up) N3300 X-20 Z40 Y50(retract tool) N3200 G40 I'm also a relative newbie at this, but all the examples, and all the code I've written (that worked, such as a hole in a stack of rubber sheets yesterday which I need to do 2 more runs of today) have used numerical values for the storage locations of variables where you have used alphabetical characters. Try this: #1 = 1.4( o.d Was #D) #2 = 0.38 (root dia was #R) #3 = [[[#1] - [#2]] / 2](cut depth was #C) #4 = 5 (number of teeth was #N) #5 = 4 (length of cut was #L) #6 = [360/[#4]] (angular increment was #A, also removed extra #) #7 = 0.09 (cutter thickness was #V) #8 = 1 (counter was #Q) #9 = 1 (tooth counter was #T) #10 = 10(step angle for rounding was #S) #11 = [[#1]/2] (radius of work was #r) #12 = 10
Re: [Emc-users] Proglem with EMC script - understanding error message
Gene Heskett wrote: [big snip] Then, down in the call statements, the syntax I've found that works involves passing the vars to the subroutine like this example: N0400 o100 call [#1][#2][#3][#4][#5][#6][#7][#8][#9][#10][#11][#12][#13] The brackets are required to protect the variables from interpretation within the call statement itself. You want to pass the variable, not its value, to the subroutine. This seems to be required because of the isolation between the subroutines idea of variables and the main loops idea. Also, anything a subroutine does to a variable is thrown away at the endsub, and that the call, sub, and endsub statements all need to have matching o word numbers. Ditto for the start and end of 'conditional' statements. I think the variables #1 through #30 (maybe #0 through #30 - I'm not sure if they start at 0 or 1) are locals, so any changes made to them in a subroutine are not visible to the calling program. If you want to use a subroutine to modify a global variable, use #31 and higher. You also don't need to pass in anything #31 or higher since they're global, so you can use higher var numbers for any constants and simplify the calls. Using [#10] passes the value of var 10, just as #10 (without the brackets) does, AFAIK. The difference is that after variable substitution is done, there is no way for the interpreter to decide that you really wanted one long number (made by concatenating the digits of all the vars you passed) - remember, the interp removes all spaces from the input line. I'm not sure what order the variable replacement vs. numerical interpretation is done, but I'm pretty sure this is the reason that things work with brackets and may not without. [medium snip] - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understandin g error message
On Thursday 16 August 2007, Stephen Wille Padnos wrote: Gene Heskett wrote: [big snip] Then, down in the call statements, the syntax I've found that works involves passing the vars to the subroutine like this example: N0400 o100 call [#1][#2][#3][#4][#5][#6][#7][#8][#9][#10][#11][#12][#13] The brackets are required to protect the variables from interpretation within the call statement itself. You want to pass the variable, not its value, to the subroutine. This seems to be required because of the isolation between the subroutines idea of variables and the main loops idea. Also, anything a subroutine does to a variable is thrown away at the endsub, and that the call, sub, and endsub statements all need to have matching o word numbers. Ditto for the start and end of 'conditional' statements. I think the variables #1 through #30 (maybe #0 through #30 - I'm not sure if they start at 0 or 1) are locals, so any changes made to them in a subroutine are not visible to the calling program. If you want to use a subroutine to modify a global variable, use #31 and higher. You also don't need to pass in anything #31 or higher since they're global, so you can use higher var numbers for any constants and simplify the calls. I was going to point that out too, but the verbosity meter was already pegged. However, I make active use of this isolation in most of my code, as I see that as an advantage. Using [#10] passes the value of var 10, just as #10 (without the brackets) does, AFAIK. The difference is that after variable substitution is done, there is no way for the interpreter to decide that you really wanted one long number (made by concatenating the digits of all the vars you passed) - remember, the interp removes all spaces from the input line. I'm not sure what order the variable replacement vs. numerical interpretation is done, but I'm pretty sure this is the reason that things work with brackets and may not without. The bottom line is that it doesn't work without them for what I've written, so I use them. Your explanation is the correct one I suspect, since I've not even looked over the fence, let alone walked around in that code. :) Thanks Stephen. -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The good life was so elusive It really got me down I had to regain some confidence So I got into camouflage - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Just a Thought
Hi Ray On Tuesday 14 August 2007 15:45, Ray Henry wrote: There was a heated discussion at that long ago FEST meeting in Ann Arbor when we created the EMC board. It was related to it's (us) becoming a legal entity. Outside of the USA, any entity would have little, if any power or status. It was my opinion, still is, that we need such an entity so that we can accept and use contributions to the central benefit of the project -- contributions of code, cash, or whatever. If you remember, part of the boards mandate was to act as an intermediatory to put interested parties in touch. e.g. Party A would offer hardware in exchange for suitable driver code. As for code contributions - Who decides what is good or bad ? I certainly respect the opinions of the others there that disagreed. In fact as a condition of the creation of a board we voted that it would not become a legal entity and it would not accept nor distribute funds. Setting up a legal entity would end up being a cash cow with little benefit for the majority - Who would audit the accounts, fund legal representation, or a whole other bunch of stuff... What those at the meeting did not know was that I had a couple thousand dollars in my pocket at that moment, Likewise, there is still quite a considerable sum of dollars from the proceeds of BDI disks available - Some has already been used to purchase IO cards from the likes of Adlink, the remainder could be used for similar purposes. I wonder if it isn't time to rethink the legal entity. If certain board members overstep their mandate, or fall back on a FU/O attitude to sidestep any issues/arguments, I doubt a legal entity would have any more credibility outside a gin house. Regards, Paul. - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
Hi again, Thanks to everyone who responded to my earlier mailing. As a result and after a considerable rewrite and correction I have now managed to get the script to load - however, it does nothing!! When I hit 'R' or press the play button, the screen flashes briefly and returns to the stop state - the machine doesn't even twitch... Do I have a problem in trying to run nested 'do - while' loops, its the only thing I can think of that might do nothing. there are no error messages displayed. Here is the rewritten script - any advice would be very welcome. Thanks.. Ian % #10 = 1.4( o.d ) #11 = 0.38(root dia) #12 = [[#10 - #11] / 2](cut depth) #13 = 5(number of teeth) #14 = 4(length of cut) #15 = [360/[#13]](angular increment) #16 = 0.09(cutter thickness) #17 = 1(counter) #18 = 1(tooth counter) #19 = 10(step angle for rounding) #20 = [[#10]/2](radius of work) #21 = 10(increment for rounding steps) #22 = 90(final arc angle) o100 sub(cuts one slot in blank) G1 X[[#12]/2] F4 G1 Y[#14] F4 G0 Y[0-[#14]] G1 X[#12] F4 G1 Y[#14] F4 G0 Y[0-[14]] endsub o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub o300 sub(rounds other half top of pinion leaf in several steps) do G0 Z[0-[[sin[#10]/[#20]] X[[cos[#10]/[#20]]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[0-[#21]] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub N0100 G92 X0 Y0 Z0(set axes to zero) N0200 G21 G91(metric units, incremental moves) N0300 do(first cut of pinion leaves) N0400 o100 call [#12][#14] N0500 [#17] = [#17] + 1(increment counter) N0600 G0 A[360/[#13]](rotate work one tooth distance) N0700 while [#17] LT 5 N0800 [#17] = 1(set counter back to 1) N0900 G0 A[0-[[#15]/3]](rotate by thickness of pinion leaf and) N1000 G0 Z[#16](move cutter - saw - to other side of leaf) N1100 do(cut other side of pinion leaves) N1200 o100 call [#12][#14] N1300 [#17] = [#17] + 1 N1400 G0 A[0-[360/[#13]]] N1500 while [#17] LT 5 N1600 [#17] = 1(set counter back to 1) N1700 G0 A[[#15]/6](move cutter to centre of leaf) N1800 G0 Z[0-[[#16]/2]( ) N1900 do(round over half the leaf and repeat for all leaves) N2000 o200 call [#10][#14][#20][#21][#22] N2100 #17 = [#17] + 1 N2200 G0 A[360/[#13]] N2300 while #17 LT 5 N2400 #17 = 1(set counter back to 1) N2500 G0 Z0 A-90(set cutter and pinion leaf back to centre) N2600 G0 Z[[#16]/2] N2700 do(round over other half the leaf and repeat for all leaves) N2800 o300 call [#10][#14][#20][#21][#22] N2900 #17 = [#17] + 1 N3000 G0 A[0-[360/[#13]]] N3100 while #17 LT 5 N3200 #17 = 1(clean up) N3300 G0 X-20 Z40 Y50(retract tool) N3200 G30 % -- Best wishes, Ian Ian W. Wright Sheffield UK The difference between theory and practice is much smaller in theory than in practice... -- Best wishes, Ian Ian W. Wright Sheffield UK The difference between theory and practice is much smaller in theory than in practice... - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
Ian, I would not recommend using #1 - #30 as global variables. Try something like this. It works for me. #510 = 1.4 ( o.d ) #511 = 0.38 (root dia) #512 = [[#510 - #511] / 2](cut depth) #513 = 5(number of teeth) #514 = 4(length of cut) #515 = [360/[#513]] (angular increment) #516 = 0.09 (cutter thickness) #517 = 1(counter) #518 = 1(tooth counter) #519 = 10 (step angle for rounding) #520 = [[#510]/2] (radius of work) #521 = 10 (increment for rounding steps) #522 = 90 (final arc angle) (cuts one slot in blank) o100 sub [1] [2]( declare the formal parameters -- I don't know if this is necessary but it helps keep things straight ) G1 X[[#1]/2] F4 G1 Y[#2] F4 G0 Y[0-[#2]] G1 X[#1] F4 G1 Y[#2] F4 G0 Y[0-[#2]] endsub O100 CALL [#512] [#514] (pass the variables or values that you want to use as local parameters) Good luck, Alan --- Alan Condit 1085 Tierra Ct. Woodburn, OR 97071 Email -- [EMAIL PROTECTED] Home-Office (503) 982-0906 On Aug 16, 2007, at Aug 16, 2007--3:23 PM, emc-users- [EMAIL PROTECTED] wrote: Message: 7 Date: Thu, 16 Aug 2007 23:24:07 +0100 From: [EMAIL PROTECTED] [EMAIL PROTECTED] Subject: Re: [Emc-users] Proglem with EMC script - understanding error message To: emc-users@lists.sourceforge.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi again, Thanks to everyone who responded to my earlier mailing. As a result and after a considerable rewrite and correction I have now managed to get the script to load - however, it does nothing!! When I hit 'R' or press the play button, the screen flashes briefly and returns to the stop state - the machine doesn't even twitch... Do I have a problem in trying to run nested 'do - while' loops, its the only thing I can think of that might do nothing. there are no error messages displayed. Here is the rewritten script - any advice would be very welcome. Thanks.. Ian % #10 = 1.4( o.d ) #11 = 0.38(root dia) #12 = [[#10 - #11] / 2](cut depth) #13 = 5(number of teeth) #14 = 4(length of cut) #15 = [360/[#13]](angular increment) #16 = 0.09(cutter thickness) #17 = 1(counter) #18 = 1(tooth counter) #19 = 10(step angle for rounding) #20 = [[#10]/2](radius of work) #21 = 10(increment for rounding steps) #22 = 90(final arc angle) o100 sub(cuts one slot in blank) G1 X[[#12]/2] F4 G1 Y[#14] F4 G0 Y[0-[#14]] G1 X[#12] F4 G1 Y[#14] F4 G0 Y[0-[14]] endsub o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub o300 sub(rounds other half top of pinion leaf in several steps) do G0 Z[0-[[sin[#10]/[#20]] X[[cos[#10]/[#20]]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[0-[#21]] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub N0100 G92 X0 Y0 Z0(set axes to zero) N0200 G21 G91(metric units, incremental moves) N0300 do(first cut of pinion leaves) N0400 o100 call [#12][#14] N0500 [#17] = [#17] + 1(increment counter) N0600 G0 A[360/[#13]](rotate work one tooth distance) N0700 while [#17] LT 5 N0800 [#17] = 1(set counter back to 1) N0900 G0 A[0-[[#15]/3]](rotate by thickness of pinion leaf and) N1000 G0 Z[#16](move cutter - saw - to other side of leaf) N1100 do(cut other side of pinion leaves) N1200 o100 call [#12][#14] N1300 [#17] = [#17] + 1 N1400 G0 A[0-[360/[#13]]] N1500 while [#17] LT 5 N1600 [#17] = 1(set counter back to 1) N1700 G0 A[[#15]/6](move cutter to centre of leaf) N1800 G0 Z[0-[[#16]/2]( ) N1900 do(round over half the leaf and repeat for all leaves) N2000 o200 call [#10][#14][#20][#21][#22] N2100 #17 = [#17] + 1 N2200 G0 A[360/[#13]] N2300 while #17 LT 5 N2400 #17 = 1(set counter back to 1) N2500 G0 Z0 A-90(set cutter and pinion leaf back to centre) N2600 G0 Z[[#16]/2] N2700 do(round over other half the leaf and repeat for all leaves) N2800 o300 call [#10][#14][#20][#21][#22] N2900 #17 = [#17] + 1 N3000 G0 A[0-[360/[#13]]] N3100 while #17 LT 5 N3200 #17 = 1(clean up) N3300 G0 X-20 Z40 Y50(retract tool) N3200 G30 % -- Best wishes, Ian Ian W. Wright Sheffield UK The difference between theory and practice is much smaller in theory than in practice... -- Best wishes, Ian Ian W. Wright Sheffield UK The difference between theory and practice is much smaller in theory than in practice... - This SF.net email is sponsored
Re: [Emc-users] Proglem with EMC script - understandin g error message
On Thursday 16 August 2007, [EMAIL PROTECTED] wrote: Hi again, Thanks to everyone who responded to my earlier mailing. As a result and after a considerable rewrite and correction I have now managed to get the script to load - however, it does nothing!! When I hit 'R' or press the play button, the screen flashes briefly and returns to the stop state - the machine doesn't even twitch... Do I have a problem in trying to run nested 'do - while' loops, its the only thing I can think of that might do nothing. there are no error messages displayed. Here is the rewritten script - any advice would be very welcome. Thanks.. Ian % #10 = 1.4( o.d ) #11 = 0.38(root dia) #12 = [[#10 - #11] / 2](cut depth) #13 = 5(number of teeth) #14 = 4(length of cut) #15 = [360/[#13]](angular increment) #16 = 0.09(cutter thickness) #17 = 1(counter) #18 = 1(tooth counter) #19 = 10(step angle for rounding) #20 = [[#10]/2](radius of work) #21 = 10(increment for rounding steps) #22 = 90(final arc angle) o100 sub(cuts one slot in blank) G1 X[[#12]/2] F4 G1 Y[#14] F4 G0 Y[0-[#14]] G1 X[#12] F4 G1 Y[#14] F4 G0 Y[0-[14]] endsub o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub o300 sub(rounds other half top of pinion leaf in several steps) do G0 Z[0-[[sin[#10]/[#20]] X[[cos[#10]/[#20]]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[0-[#21]] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub There is the M101 command, which can be used to print out the values as they exist here and there, which can also be educational. N0100 G92 X0 Y0 Z0(set axes to zero) And one could start with Z preset several inches high, giving you time to hit the pause button and then single step it while its running down to the zero point. N0200 G21 G91(metric units, incremental moves) N0300 do(first cut of pinion leaves) N0400 o100 call [#12][#14] N0500 [#17] = [#17] + 1(increment counter) N0600 G0 A[360/[#13]](rotate work one tooth distance) N0700 while [#17] LT 5 Ahh, I think your do while need to be matching o words. N0800 [#17] = 1(set counter back to 1) N0900 G0 A[0-[[#15]/3]](rotate by thickness of pinion leaf and) N1000 G0 Z[#16](move cutter - saw - to other side of leaf) N1100 do(cut other side of pinion leaves) N1200 o100 call [#12][#14] N1300 [#17] = [#17] + 1 N1400 G0 A[0-[360/[#13]]] N1500 while [#17] LT 5 N1600 [#17] = 1(set counter back to 1) N1700 G0 A[[#15]/6](move cutter to centre of leaf) N1800 G0 Z[0-[[#16]/2]( ) N1900 do(round over half the leaf and repeat for all leaves) N2000 o200 call [#10][#14][#20][#21][#22] N2100 #17 = [#17] + 1 N2200 G0 A[360/[#13]] N2300 while #17 LT 5 N2400 #17 = 1(set counter back to 1) N2500 G0 Z0 A-90(set cutter and pinion leaf back to centre) N2600 G0 Z[[#16]/2] N2700 do(round over other half the leaf and repeat for all leaves) N2800 o300 call [#10][#14][#20][#21][#22] N2900 #17 = [#17] + 1 N3000 G0 A[0-[360/[#13]]] N3100 while #17 LT 5 N3200 #17 = 1(clean up) N3300 G0 X-20 Z40 Y50(retract tool) N3200 G30 % -- Best wishes, Ian Ian W. Wright Sheffield UK The difference between theory and practice is much smaller in theory than in practice... Now that's a true statement if there ever was one... -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) I've got a bad feeling about this. - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] This is a test
This is a test - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understanding error message
I spotted several more errors in your program. #10 = 1.4( o.d ) ... #22 = 90(final arc angle) Parameters up to 30 are used for subroutine arguments. Use parameters above 30 for global variables: #40 = 1.4( o.d ) ... #52 = 90(final arc angle) o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub Numbers are required for the beginning and end of a subroutine, loop, or conditional. So your code should look more like: O200 sub ... O201 do ... O201 while ... O200 endsub It's the missing O100 for the first endsub that makes emc run off the end of the program without doing anything -- it's looking for O100 endsub and nothing else will do. while [#10] LT [#22] the correct syntax is O201 while [#10 LT #22] G1 Y[#14] F4 Brackets are not necessary here, but not harmful either N0500 [#17] = [#17] + 1(increment counter) The correct bracketing is: #17=[#17+1] In addition to the original, these are both incorrect: [#17]=[#17+1] #17=[#17]+1 G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] The correct bracketing is: G0 Z[sin[#10]/#20] if you want to compute what would be written sin(x)/y in many other languages, or G0 Z[sin[#10/#20]] if you want to compute what would be written sin(x/y) in many other languages. N2000 o200 call [#10][#14][#20][#21][#22] Inside O200 sub, you refer to #10, #14, #21, #21, and #22 which are the numbers of the variables you intended to be global. You could either omit these parameters from O200 call and use the global variable numbers once you renumber them to be above 30. Or, inside O200 sub you could refer to them as #1 through #5. On Thu, Aug 16, 2007 at 11:24:07PM +0100, [EMAIL PROTECTED] wrote: Hi again, Thanks to everyone who responded to my earlier mailing. As a result and after a considerable rewrite and correction I have now managed to get the script to load - however, it does nothing!! When I hit 'R' or press the play button, the screen flashes briefly and returns to the stop state - the machine doesn't even twitch... Do I have a problem in trying to run nested 'do - while' loops, its the only thing I can think of that might do nothing. there are no error messages displayed. Here is the rewritten script - any advice would be very welcome. Thanks.. Ian % #10 = 1.4( o.d ) #11 = 0.38(root dia) #12 = [[#10 - #11] / 2](cut depth) #13 = 5(number of teeth) #14 = 4(length of cut) #15 = [360/[#13]](angular increment) #16 = 0.09(cutter thickness) #17 = 1(counter) #18 = 1(tooth counter) #19 = 10(step angle for rounding) #20 = [[#10]/2](radius of work) #21 = 10(increment for rounding steps) #22 = 90(final arc angle) o100 sub(cuts one slot in blank) G1 X[[#12]/2] F4 G1 Y[#14] F4 G0 Y[0-[#14]] G1 X[#12] F4 G1 Y[#14] F4 G0 Y[0-[14]] endsub o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub o300 sub(rounds other half top of pinion leaf in several steps) do G0 Z[0-[[sin[#10]/[#20]] X[[cos[#10]/[#20]]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[0-[#21]] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub N0100 G92 X0 Y0 Z0(set axes to zero) N0200 G21 G91(metric units, incremental moves) N0300 do(first cut of pinion leaves) N0400 o100 call [#12][#14] N0500 [#17] = [#17] + 1(increment counter) N0600 G0 A[360/[#13]](rotate work one tooth distance) N0700 while [#17] LT 5 N0800 [#17] = 1(set counter back to 1) N0900 G0 A[0-[[#15]/3]](rotate by thickness of pinion leaf and) N1000 G0 Z[#16](move cutter - saw - to other side of leaf) N1100 do(cut other side of pinion leaves) N1200 o100 call [#12][#14] N1300 [#17] = [#17] + 1 N1400 G0 A[0-[360/[#13]]] N1500 while [#17] LT 5 N1600 [#17] = 1(set counter back to 1) N1700 G0 A[[#15]/6](move cutter to centre of leaf) N1800 G0 Z[0-[[#16]/2]( ) N1900 do(round over half the leaf and repeat for all leaves) N2000 o200 call [#10][#14][#20][#21][#22] N2100 #17 = [#17] + 1 N2200 G0 A[360/[#13]] N2300 while #17 LT 5 N2400 #17 = 1(set counter back to 1) N2500 G0 Z0 A-90(set cutter and pinion leaf back to centre) N2600 G0 Z[[#16]/2] N2700 do(round over other half the leaf and repeat for all leaves) N2800 o300 call [#10][#14][#20][#21][#22] N2900 #17 = [#17] + 1 N3000 G0 A[0-[360/[#13]]] N3100 while #17 LT 5 N3200 #17 = 1(clean up) N3300 G0 X-20 Z40 Y50(retract tool) N3200 G30 % -- Best wishes, Ian Ian W.
[Emc-users] Floating Z (solenoid on PCB Mill) Hal configuration
In case anyone else has one of these PCB mills with the solenoid driven floating Z, I thought I would share my configuration changes. The premise I worked with was that if I could take the commanded Z position and convert it to a bit output to my solenoid relay I could use the standard drill and move codes with it. So I connected the Zpos-cmd and a constant "0" to a comparator and then routed that to the par-port. Now any commanded Z position 0 or greater results in the head up and any Z command less than 0 puts the head down. Here is what I did, let me know if it could use any adjustments, I am new to this hal thing. In stepper_inch.ini I added a line for my new hal file: HALFILE= solenoid_Z.hal My new hal file solenoid_Z.hal contains: loadrt blocks constant=1 comp=1 constant.0.value=0 newsig constcomp float linksp constcomp comp.0.in1 linksp Zpos-cmd comp0.in0 newsig discrete_Z bit linksp discrete_Z comp.0.out linksp discrete_Z parport.0.pin-07-out addf constant.0 servo-thread addf comp.0 servo-thread That's it. After a few syntax problems it worked. I am quite happy. Have fun, Tony- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Proglem with EMC script - understandin g error message
On Thursday 16 August 2007, Jeff Epler wrote: I spotted several more errors in your program. #10 = 1.4( o.d ) ... #22 = 90(final arc angle) Parameters up to 30 are used for subroutine arguments. Use parameters above 30 for global variables: #40 = 1.4( o.d ) ... #52 = 90(final arc angle) o200 sub(rounds half top of pinion leaf in several steps) do G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] G1 Y[#14] F4 G0 Y[0-[#14]] G0 A[#21] #10 = [[#10]+[#21]] while [#10] LT [#22] endsub Numbers are required for the beginning and end of a subroutine, loop, or conditional. So your code should look more like: O200 sub ... O201 do ... O201 while ... O200 endsub It's the missing O100 for the first endsub that makes emc run off the end of the program without doing anything -- it's looking for O100 endsub and nothing else will do. while [#10] LT [#22] the correct syntax is O201 while [#10 LT #22] G1 Y[#14] F4 Brackets are not necessary here, but not harmful either N0500 [#17] = [#17] + 1(increment counter) The correct bracketing is: #17=[#17+1] In addition to the original, these are both incorrect: [#17]=[#17+1] #17=[#17]+1 G0 Z[[sin[#10]/[#20]] X[[cos[#10]/[#20]] The correct bracketing is: G0 Z[sin[#10]/#20] if you want to compute what would be written sin(x)/y in many other languages, or G0 Z[sin[#10/#20]] if you want to compute what would be written sin(x/y) in many other languages. N2000 o200 call [#10][#14][#20][#21][#22] Inside O200 sub, you refer to #10, #14, #21, #21, and #22 which are the numbers of the variables you intended to be global. You could either omit these parameters from O200 call and use the global variable numbers once you renumber them to be above 30. Or, inside O200 sub you could refer to them as #1 through #5. Thanks for the lengthy explanation Jeff, I'm learning things from this myself. I wasn't aware that the subs treated passed arguments as a completely different numbering system, starting I assume at 1, and going up in the order of their location in the 'oxxx call' lines list. The wiki would be better if some of this reasoning was included, it is a bit 'dry' shall we say? [...] -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) It's God. No, not Richard Stallman, or Linus Torvalds, but God. (By Matt Welsh) - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Floating Z (solenoid on PCB Mill) Hal configuration
Thanks -- I imagine this will be helpful to anyone with a similar system. the only thing that comes to mind is that the time emc spends on the Z motion had better be long enough for the solenoid to completely lower -- does this take long on your machine, or does it snap right down to the right depth before you can blink? Jeff - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
