Greg Michalski wrote: > Just a quick note to those who gave feedback - everyone seems to be > almost apologetic about their criticisms. Don't worry about it - 1) I > asked for them so it can be the best and help the most people across > the most levels of experience as possible, so don't apologize - > multiple sets of eyes and brains are better than just my somehwat > underperforming brain :) 2) Come work for my boss - I'd have 15 > handwritten pages of changes on this (if he knew a lick about what > this was talking about - plus I would have had to print it out for > him...) so the minor comments provided are almost a joke to me - > pleasing you guys will be easy! :)
Well, in that case ... :) I noticed that the link colors are hard to see, both visited and unvisited. The current version is 2.2.5 (though it may not have been when you started writing the guide :) ) I don't know if this is still true, but I think it used to be much better to have the PC attached to the internet during the install. I think some of the software repository setup is different than when you install disconnected. You may want to point out that the "invert" checkbox is used when the inputs/outputs are active low. You'd be surprised how many questions we've seen asking about that. Note that for machines configured as metric (mm), "Leadscrew Pitch" will be in mm/rev instead of revs/inch. I think it would be better if the section on table travel didn't suggest "disabling" soft limits. Soft limits are still useful with physical limit switches - they should prevent the machine from ever hitting a limit switch. Limit switches should probably disable the motors, which will cause a loss of position for any stepper machine and some servo machines (those using step-to-servo drives without running the encoder feedback into the PC). You may want to note that the home search velocity is a signed number, if the machine goes the wrong way when homing, make the number negative (or positive, if it was negative). Incidentally, there's a typo there, that should be "Home Search Velocity", not "Home Switch Velocity". I think the description of Home Latch Direction is incorrect - maybe a cut/paste error or something. With "Same" selected, EMC should move onto the switch, then back off until the switch opens, then approach in the original direction until the switch closes again. If the direction is "Opposite", EMC will first approach the switch, then back off slowly, latching the home position when the switch opens. It won't go back to re-close the switch. The second approach will be slower, stepconf calculates a slow rate that is guaranteed to capture the position to within one step (this way, you can do the first approach at relatively high speed, and the second at the low speed for better accuracy). You may want to mention that you can't run more than one of latency-test, "test this axis" or EMC at a time, or your computer will explode (or crash or something :) ). I must confess, I didn't really understand your method of getting the spindle parameters. You mentioned a working range of 4000RPM on a spindle that can do 8000, but then there are magic numbers of 1600 and 2800RPM for testing. I don't see where 1600 and 2800 came from. If you're just picking two numbers so you can get 2 points on a line, then I'd suggest points that are closer to the ends - like 500 and 3500, or even 200 and 3800. Those should give a better answer, since the slope calculation divides by the difference between the PWM values (so you want that to be as large as possible). This whole thing may be a nitpick now - I just noticed that you say "for example" in that section :) Thanks again for the work. Let me know if you want a nitpicky grammar/spelling evaluation :) - Steve > Greg > www.distinctperspectives.com <http://www.distinctperspectives.com> > > ----- Original Message ----- > *From:* Greg Michalski <mailto:[EMAIL PROTECTED]> > *To:* Enhanced Machine Controller (EMC) > <mailto:[email protected]> > *Sent:* Sunday, August 03, 2008 1:41 PM > *Subject:* Re: [Emc-users] EMC Basic Setup Tutorial - draft > > Thanks for all the comments - I'll try and incorporate as much of > this as possible - I'll think I'll make a separate PDF link for > someone to download and print off to combat the black background > issue - IE7 always inverts the page for me but I have a BW printer > at home so maybe it's the printer being self aware and cutting > down on toner usage. In reality these steps are mostly covered in > print form in the current users manual - though I'm sure a noobie > wouldn't dig through the manual to find those pages and print them > off. Personally I have a binder for each of the manuals and was > grabbing them from time to time when I was setting up the actual > mill. > > I understand on the going off topic - I'm kinda medicated and my > thought processes are not as focused as normal. With a new day a > new read through will probably reveal more issues to me that I > don't like :) Thanks for pointing that out so I can be aware to > keep focus. > > Thanks again everyone! > > Greg > www.distinctperspectives.com <http://www.distinctperspectives.com> > > ----- Original Message ----- > *From:* Emory Smith <mailto:[EMAIL PROTECTED]> > *To:* Enhanced Machine Controller (EMC) > <mailto:[email protected]> > *Sent:* Sunday, August 03, 2008 12:44 PM > *Subject:* Re: [Emc-users] EMC Basic Setup Tutorial - draft > > Well done! I don't have much to add that hasn't been covered but, > when CoffeCup expires, give SeaMonkey a try. I use it for my > Q&D web stuff. > Available for Win, Lin & Mac and can be configured to always > come up > in html edit mode. > And it's free at http://www.seamonkey-project.org/ > > Also search for 'loos' and change to 'los' where appropriate. > (As in steps ;^) > > The black background was mentioned. I like it and have no > problems printing > anything with any background. It would be simple to copy & > paste everything > into OO's word processor and export as pdf and put up a link > to the pdf. > > Keep up the good work, > Emory > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
