Todays Project - What did you do today?
Darren and I worked on getting the parts for his Kondia milling machine's head fixed the day before yesterday. Here's a shot of the quill feed forward-reverse selector shaft with the original hole for the ball detent far off-center. I know lighting and parallax error can be deceptive, but that mangled 5mm hole is definitely off to the upper side of the shaft. The M8 threads of new collar that carries the ball detent set screw, spring and ball is also off by a tiny bit (perhaps .005") but in the opposite direction.

[Image: IMG_2457-r_zps6e53d9b6.jpg]

We discussed it and decided that the only practical solution was to weld up the hole and put a new one in. The cautions with that are that we have to keep the 7mm bore in the shaft clear for the mating sliding shaft, not sure if the weld will harden or soften anything, and could bend from welding. We went to see Jennifer (Allescence) and she expertly TIG welded the hole full. The copper plug we made kept weld mostly out of the bore.

[Image: IMG_2458-r_zpsf2d1e937.jpg]

We fastened the copper plug to a piece of CRS that we threaded. It worked good, but Darren did have to turn the #10-32 threaded shaft into a slide hammer to get the plug out after the welding. And the whole thing had a peculiar bend form welding. No worries, Darren did a nice job of straightening it out with my plumber's torch and a piece of black iron pipe. A final tap on the lathe for true, turn the weld down and file smooth, ream the 7mm bore and it's near perfect!

[Image: IMG_2463-r_zpsfc0ffa9a.jpg]

Now re-drilled and chamfered, it lines up perfect with the collar and all is well as an assembly.

[Image: IMG_2465-r_zps37845e8f.jpg]
[Image: IMG_2467-r_zpsb3fe52b0.jpg]
Reply
Thanks given by: Mayhem


Messages In This Thread
RE: Todays Project - by DanH - 08-14-2012, 10:13 PM
RE: Todays Project - by DaveH - 08-15-2012, 01:01 PM
RE: Todays Project - by doubleboost - 08-15-2012, 03:20 PM
RE: Todays Project - What did you do today? - by Wawoodman - 09-05-2012, 01:03 PM
RE: Todays Project - What did you do today? - by Wawoodman - 09-27-2012, 07:15 PM
RE: Todays Project - What did you do today? - by Wawoodman - 09-29-2012, 12:50 PM
RE: Todays Project - What did you do today? - by Wawoodman - 10-10-2012, 02:08 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 10-16-2012, 02:31 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 11-01-2012, 07:35 AM
RE: Todays Project - What did you do today? - by Bill Gruby - 11-01-2012, 04:16 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 11-02-2012, 08:50 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 11-03-2012, 07:57 AM
RE: Todays Project - What did you do today? - by 4R8 - 11-14-2012, 06:51 PM
RE: Todays Project - What did you do today? - by 4R8 - 11-18-2012, 11:45 PM
RE: Todays Project - What did you do today? - by 4R8 - 11-19-2012, 04:29 PM
RE: Todays Project - What did you do today? - by 4R8 - 11-21-2012, 03:35 PM
RE: Todays Project - What did you do today? - by 4R8 - 11-22-2012, 04:09 PM
RE: Todays Project - What did you do today? - by 4R8 - 12-01-2012, 03:47 PM
RE: Todays Project - What did you do today? - by 4R8 - 12-02-2012, 09:52 AM
RE: Todays Project - What did you do today? - by Bill Gruby - 01-10-2013, 07:25 AM
RE: Todays Project - What did you do today? - by Bill Gruby - 01-27-2013, 02:55 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-02-2013, 05:05 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-03-2013, 09:31 AM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-03-2013, 11:28 AM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-06-2013, 06:17 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-06-2013, 07:55 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-07-2013, 06:26 PM
RE: Todays Project - What did you do today? - by Wawoodman - 02-08-2013, 02:06 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-09-2013, 04:43 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 02-27-2013, 11:32 AM
RE: Todays Project - What did you do today? - by Bill Gruby - 06-10-2013, 07:50 AM
New bench vise! - by PixMan - 08-10-2013, 05:26 PM
RE: Todays Project - What did you do today? - by Bill Gruby - 09-26-2013, 07:37 AM
RE: Todays Project - What did you do today? - by Bill Gruby - 09-27-2013, 08:24 AM
RE: Todays Project - ER 25 collet rack - by Shawn - 01-02-2014, 10:19 PM
RE: Todays Project - What did you do today? - by RobWilson - 07-08-2014, 03:48 PM
RE: Todays Project - What did you do today? - by RobWilson - 07-10-2014, 03:47 PM
RE: Todays Project - What did you do today? - by RobWilson - 07-12-2014, 11:56 AM
RE: Todays Project - What did you do today? - by RobWilson - 07-12-2014, 12:08 PM
RE: Todays Project - What did you do today? - by RobWilson - 07-13-2014, 09:36 AM
RE: Todays Project - What did you do today? - by RobWilson - 07-13-2014, 09:52 AM
RE: Todays Project - What did you do today? - by RobWilson - 07-13-2014, 10:39 AM
RE: Todays Project - What did you do today? - by RobWilson - 07-13-2014, 11:21 AM
RE: Todays Project - What did you do today? - by RobWilson - 07-14-2014, 12:49 PM
RE: Todays Project - What did you do today? - by RobWilson - 07-24-2014, 01:25 PM
RE: Todays Project - What did you do today? - by RobWilson - 07-24-2014, 02:08 PM
RE: Todays Project - What did you do today? - by RobWilson - 08-03-2014, 12:31 PM
RE: Todays Project - What did you do today? - by RobWilson - 08-03-2014, 12:35 PM
RE: Todays Project - What did you do today? - by RobWilson - 08-24-2014, 05:17 AM
RE: Todays Project - What did you do today? - by RobWilson - 09-09-2014, 03:11 PM
RE: Todays Project - What did you do today? - by RobWilson - 09-10-2014, 07:48 AM
RE: Todays Project - What did you do today? - by RobWilson - 09-27-2014, 03:57 PM
RE: Todays Project - What did you do today? - by RobWilson - 09-27-2014, 04:58 PM
RE: Todays Project - What did you do today? - by RobWilson - 09-28-2014, 03:02 AM
RE: Todays Project - What did you do today? - by RobWilson - 09-28-2014, 08:33 AM
RE: Todays Project - What did you do today? - by PixMan - 10-30-2014, 08:41 AM
Process development - by PixMan - 11-23-2014, 08:09 PM
PVC Collars - by Micktoon - 12-10-2014, 08:10 PM
RE: Todays Project - What did you do today? - by RobWilson - 02-21-2015, 03:53 PM
RE: Todays Project - What did you do today? - by RobWilson - 02-21-2015, 04:08 PM
RE: Todays Project - What did you do today? - by RobWilson - 02-22-2015, 03:31 AM
RE: Todays Project - What did you do today? - by RobWilson - 02-22-2015, 03:34 AM
RE: Todays Project - What did you do today? - by RobWilson - 03-15-2015, 04:33 AM
RE: Todays Project - What did you do today? - by RobWilson - 03-16-2015, 10:11 AM
RE: Todays Project - What did you do today? - by RobWilson - 03-29-2015, 03:46 AM
RE: Todays Project - What did you do today? - by RobWilson - 03-29-2015, 08:58 AM
RE: Todays Project - What did you do today? - by RobWilson - 03-29-2015, 10:04 AM
RE: Todays Project - What did you do today? - by RobWilson - 03-29-2015, 12:32 PM
RE: Todays Project - What did you do today? - by RobWilson - 03-29-2015, 01:20 PM
RE: Todays Project - What did you do today? - by RobWilson - 04-08-2015, 11:05 AM
RE: Todays Project - What did you do today? - by RobWilson - 05-10-2015, 02:10 PM
RE: Todays Project - What did you do today? - by RobWilson - 05-24-2015, 11:34 AM
RE: Todays Project - What did you do today? - by RobWilson - 05-24-2015, 02:47 PM
RE: Todays Project - What did you do today? - by RobWilson - 05-25-2015, 12:29 AM
RE: Todays Project - What did you do today? - by RobWilson - 05-31-2015, 11:24 AM
RE: Todays Project - What did you do today? - by RobWilson - 06-01-2015, 02:11 AM
RE: Todays Project - What did you do today? - by RobWilson - 06-01-2015, 02:55 AM
RE: Todays Project - What did you do today? - by RobWilson - 06-01-2015, 09:37 AM
RE: Todays Project - What did you do today? - by RobWilson - 06-01-2015, 11:47 AM
RE: Todays Project - What did you do today? - by RobWilson - 06-01-2015, 02:38 PM
RE: Todays Project - What did you do today? - by RobWilson - 08-15-2015, 11:03 AM
RE: Todays Project - What did you do today? - by RobWilson - 08-23-2015, 03:27 AM
RE: Todays Project - What did you do today? - by RobWilson - 08-27-2015, 02:17 PM
RE: Todays Project - What did you do today? - by RobWilson - 09-12-2015, 07:12 AM
RE: Todays Project - What did you do today? - by RobWilson - 09-19-2015, 11:17 AM
RE: Todays Project - What did you do today? - by RobWilson - 09-19-2015, 12:15 PM
RE: Todays Project - What did you do today? - by RobWilson - 09-20-2015, 03:23 AM
RE: Todays Project - What did you do today? - by RobWilson - 09-26-2015, 02:53 PM
RE: Todays Project - What did you do today? - by RobWilson - 09-27-2015, 03:43 PM
RE: Todays Project - What did you do today? - by RobWilson - 10-23-2015, 07:17 AM
RE: Todays Project - What did you do today? - by RobWilson - 10-24-2015, 12:35 PM
RE: Todays Project - What did you do today? - by RobWilson - 10-28-2015, 03:07 PM
I finally finished something! - by wawoodman - 11-06-2015, 07:31 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-08-2015, 02:20 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-23-2015, 12:15 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-30-2015, 03:06 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-01-2015, 11:10 AM
RE: Todays Project - What did you do today? - by RobWilson - 11-30-2015, 04:58 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-01-2015, 11:02 AM
RE: Todays Project - What did you do today? - by RobWilson - 12-01-2015, 11:13 AM
RE: Todays Project - What did you do today? - by RobWilson - 12-01-2015, 11:07 AM
RE: Todays Project - What did you do today? - by RobWilson - 12-01-2015, 11:34 AM
RE: Todays Project - What did you do today? - by RobWilson - 12-10-2015, 02:08 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-21-2015, 01:07 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-21-2015, 01:57 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-21-2015, 02:24 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-06-2016, 04:46 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-06-2016, 05:55 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-07-2016, 03:42 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-07-2016, 04:18 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-18-2016, 01:27 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-19-2016, 03:47 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-25-2016, 12:04 PM
RE: Todays Project - What did you do today? - by RobWilson - 01-31-2016, 10:34 AM
RE: Todays Project - What did you do today? - by RobWilson - 01-31-2016, 02:28 PM
RE: Todays Project - What did you do today? - by RobWilson - 02-01-2016, 11:47 AM
RE: Todays Project - What did you do today? - by RobWilson - 02-01-2016, 11:57 AM
RE: Todays Project - What did you do today? - by RobWilson - 01-31-2016, 02:30 PM
RE: Todays Project - What did you do today? - by RobWilson - 02-14-2016, 10:08 AM
RE: Todays Project - What did you do today? - by RobWilson - 10-13-2016, 01:16 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-06-2016, 11:08 AM
RE: Todays Project - What did you do today? - by RobWilson - 11-07-2016, 03:50 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-09-2016, 04:34 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-12-2016, 04:36 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-12-2016, 04:50 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-12-2016, 05:21 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-12-2016, 05:27 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-12-2016, 05:33 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-13-2016, 11:54 AM
RE: Todays Project - What did you do today? - by RobWilson - 11-16-2016, 03:50 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-19-2016, 12:00 PM
RE: Todays Project - What did you do today? - by RobWilson - 11-21-2016, 03:42 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-04-2016, 07:49 AM
RE: Todays Project - What did you do today? - by RobWilson - 12-27-2016, 12:42 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-27-2016, 11:01 PM
RE: Todays Project - What did you do today? - by RobWilson - 12-28-2016, 04:56 AM
RE: Todays Project - What did you do today? - by Tom Terrific - 03-30-2020, 08:43 PM
! - by EdK - 06-07-2022, 07:53 PM



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