Gene: Bought the same scope as you. Don't leave it plugged in, so I haven't seen the battery swelling (yet). It is definitely very nice to have an Oscope that is isolated from everything except what I tie it to. BTW, Happy Birthday!
----- Original Message ----- From: [email protected] To: [email protected] Sent: Tuesday, October 4, 2016 5:48:59 AM Subject: Emc-users Digest, Vol 126, Issue 6 Send Emc-users mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/emc-users or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of Emc-users digest..." Today's Topics: 1. Speaking of batteries (Gene Heskett) 2. Re: Any Interest or Ideas for a Linuxcnc Fest 2016 ? (Jon Elson) 3. Happy 82nd to me, and the latest version of my G76 tweaker for you (Gene Heskett) ---------------------------------------------------------------------- Message: 1 Date: Mon, 3 Oct 2016 20:23:28 -0400 From: Gene Heskett <[email protected]> Subject: [Emc-users] Speaking of batteries To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset="us-ascii" Greetings all; I don't believe I was the only one to buy one of those DS-201 pocket o-scopes about 2, maybe 3 years back. I reached to get mine, which had been plugged into a usb port on TLM's computer, probably for close to a year. And when I had pulled it off the shelf, it felt thick. The battery had swelled up and pushed the back out about an eighth of an inch. It still worked but the display was dimmer than I remember it. Has anyone else's also gotten obese & dim? 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------ Message: 2 Date: Mon, 03 Oct 2016 23:31:39 -0500 From: Jon Elson <[email protected]> Subject: Re: [Emc-users] Any Interest or Ideas for a Linuxcnc Fest 2016 ? To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 09/28/2016 06:07 PM, Sebastian Kuzminsky wrote: >>> >>> The plan is: >>> >>> Monday October 17 through Sunday October 23 >>> Helix Machine, 3434 West Harry, Wichita, Kansas >>> >>> It's going to be a rocking nerdy good time. >> Where is everyone staying? I think last time I stayed at the Days Inn, which looks like it is a lot closer to Stuart's new place than it was to MPM. First time out there I stayed at Western Holiday, which was a bit TOO cheap! Days Inn was OK, and the airport actually was pretty quiet at night. (I'm still trying to get a bunch of stuff squared away so I can take the time off, hope it all works out...) Jon ------------------------------ Message: 3 Date: Tue, 4 Oct 2016 08:48:46 -0400 From: Gene Heskett <[email protected]> Subject: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you To: "Enhanced Machine Controller (EMC)" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset="us-ascii" Greetings all; I re-thought how to do a G76, both in terms of maybe hitting the correct thread od, and in how to minimize the backaway for doing internal threads to the absolute minimum. 2 attachments, one the code that made the snapshot, and the snapshot showing how it works, even for a gross adjustment. The whole idea was to maintain the effective imaginary compound angle, hopefully resulting it a cleaner thread, as a second or third run was done to get the exact size and fit. I hope you find it usable. 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) Genes Web page <http://geneslinuxbox.net:6309/gene> -------------- next part -------------- % ( adding a couple new vars to aid in the cut, test for fit, adjust and ) ( wash rinse and repeat till the stop button is clicked because it now fits. ) ( And I just now understand why I am always oversized. I am not calculating ) ( the actual thread diameter correctly. The target point is not the tip ) ( of the cutting tool. To cut the correct thread when the OD is known, ) ( that figure using the pitch/.866 factor s/b the cutting depth! So one ) ( cannot use the threading tool to do the final diameter touch off without ) ( subtraction of #<_kpp> below from the finished diameter before threading. ) ( Damn its taken me too long to grok that! ) ( So fix this code, its still wrong a/o my 82nd birthday. ) ( working on it at 8 am. Everything is now anchored to the thread's OD ) #<_t_offset> = -0.80000 ( use this to adjust size! - for external) #<_p_offset> = 0.000 ( place holder ) #<_thread_od> = 9.525 ( starting value for .375") #<_thread_end> = -24 ( mm's obviously ) #<_q_angle> = 29.500 (degrees) G7 G21 (diameter mode,mm mode, g20=inch mode) S250 ( diddle this stuff if inches as below) (#<_tp_mm> = 1.00) #<_tpi> = 24 #<_pitch> = [1.000 / #<_tpi>] #<_pitch> = [#<_pitch> * 25.4] (needs mm's) #<_thread_od> = [#<_thread_od> + #<_t_offset>] ( I have NDI why this works with the .5587 multiplier, but it seems to ) ( fit well at 29.5 degrees but needs this fudge diddled for 29 and 30 ) #<_p_offset> = [#<_t_offset> * SIN[#<_q_angle>] *.587000] (sine of angle) ( constrain this #<_p_offset> to be lt #<_pitch> either direction ) o150 WHILE [#<_p_offset> lt -#<_pitch>] #<_p_offset> = [#<_p_offset> + #<_pitch>] o150 ENDWHILE o151 WHILE [#<_p_offset> gt #<_pitch>] #<_p_offset> = [#<_p_offset> - #<_pitch>] o151 ENDWHILE (debug,p_offset=#<_p_offset>) ( calculate this K from pitch ) ( set k, peak to valley of std USS/USF thread format = pitch/0.866 -10% clipped from peak and valley ) #<_kpp> = [0.9 * [#<_pitch> / 0.866]] (I might try 0.9 here to see if any cleaner a cut with this tool ) (debug, kpp=#<_kpp>) #<_i_cut> = -#<_kpp> (debug,i_cut=#<_i_cut>) ( from thread_OD set drive xline ) ( set drive line OD 1st) #<_drive_xline> = [#<_thread_OD> + #<_kpp>] ( a bit large for mm's, works for ext ) ( set z far enough away sync is good for startup accel wibblies ) #<_drive_zstart> = [2.0 + #<_p_offset>] ( assumes mm's, too far for inches ) #<_z_end> = [#<_thread_end> + #<_p_offset>] M3 G4P1 (start spindle, wait for speed) G0 x45 ( clear armstrong bolts spinning base ) G1 F750 z#<_drive_zstart> G1 F350 x#<_drive_xline> G76 p#<_pitch> z#<_z_end> i#<_i_cut> j0.25 k#<_kpp> r2.011 q#<_q_angle> h5 e0.150 l2 ( leave it where it started from ) G1 F650 x#<_drive_xline> (but out of the way for test fits) G1 F650 z#<_drive_zstart> M5 G1 F650 x45 (back it out of the way to check screw fit) G0 z150 M2 % -------------- next part -------------- A non-text attachment was scrubbed... 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