Search found 2757 matches

by ctwo
Fri Sep 25, 2020 10:19 pm
Forum: General Discussion
Topic: Cute Mystery Indexer
Replies: 6
Views: 1114

Re: Cute Mystery Indexer

I don't see anything lost. Some other images out there of the Burke #4 indexing head look exactly the same to me. There is additionally a similar dividing head.

Here a couple more images, a bit more than half-way down.

https://www.hobby-machinist.com/threads/burke-4.4990/
by ctwo
Thu Sep 24, 2020 12:33 am
Forum: General Discussion
Topic: Cute Mystery Indexer
Replies: 6
Views: 1114

Re: Cute Mystery Indexer

About half way down, picture looks familiar.

https://www.practicalmachinist.com/vb/a ... ty-340476/
by ctwo
Mon Sep 21, 2020 5:13 pm
Forum: General Discussion
Topic: Machinist's Level help
Replies: 88
Views: 5526

Re: Machinist's Level help

I've been reading about so many things lately and it seems everyone is using acronyms, or are they abbreviations? I had to look up shcs!
by ctwo
Mon Sep 21, 2020 5:10 pm
Forum: General Discussion
Topic: Way lubrication
Replies: 9
Views: 845

Re: Way lubrication

For fun, I squirted some 30W automotive oil on my lathe ways. It seemed more slippery than usual. That went away quickly though, but I did not notice any stick-slip on my small 10" Logan. I might use it when lubing up some less often movements like the compound, because maybe it will find more nooks...
by ctwo
Mon Sep 21, 2020 8:55 am
Forum: Lathes
Topic: Trying to prevent ribbing on tapers
Replies: 22
Views: 1332

Re: Trying to prevent ribbing on tapers

I was taught that with hand finish feed, don't use the knobs, but rather use a two-handed hand-off on the wheel and keep the feed constant. Most of the time, both hands are on the wheel. I've always done it that way, even on the carriage, but I don't do a lot of production. When I worked in a commer...
by ctwo
Fri Sep 18, 2020 10:02 pm
Forum: Lathes
Topic: Estimating chuck speeds
Replies: 16
Views: 899

Re: Estimating chuck speeds

I think the search term is

hall tachometer

and a quick demo (there is another yootoob video showing a complete install on a mill)

https://www.youtube.com/watch?v=6AFuz_HkO8M
by ctwo
Fri Sep 18, 2020 8:16 am
Forum: General Discussion
Topic: Machinist's Level help
Replies: 88
Views: 5526

Re: Machinist's Level help

It is a world class level :)

I had not realized that there is a small vertical bubble in the center. I was reading about the cross bubble, but have not seen a use case for the vertical bubble (should say vial). I suppose I could put it on my mill or drill press quill.
by ctwo
Fri Sep 18, 2020 7:50 am
Forum: General Discussion
Topic: Way lubrication
Replies: 9
Views: 845

Re: Way lubrication

Bar oil is $13 for a US gallon here locally. But I use Vactra #2 on my ways.
by ctwo
Tue Sep 15, 2020 11:32 pm
Forum: General Discussion
Topic: Machinist's Level help
Replies: 88
Views: 5526

Re: Machinist's Level help

sure it will...if the plate is truly level...then the level will show 'level' in both directions.... first $50 + shipping from 19734 takes it. 98 level.jpg been in the box for 40 years....and I have 3! which is a good thing since my 4th got broken in shipping 35 years ago. It came a day early and I...
by ctwo
Sun Sep 13, 2020 7:44 pm
Forum: General Discussion
Topic: Machinist's Level help
Replies: 88
Views: 5526

Re: Machinist's Level help

I don't understand. It is a chord that I cut from a brake rotor, and I've milled half an inch into the top fins and around 100 thou into the bottom already. I feel as though I need to place it into a 500F oven for half a day and let it cool, and then lap it again on my surface plate. Milling it for ...
by ctwo
Thu Sep 10, 2020 9:46 pm
Forum: General Discussion
Topic: Machinist's Level help
Replies: 88
Views: 5526

Re: Machinist's Level help

Some precision levels have a foot at each end rather than a continuous flat bottom. This eliminates the possibility of teetering. You can get the same effect by placing a gauge block under each end though of course that adds uncertainty. I am imagining adding modular feet to the bottom of mine now....
by ctwo
Tue Sep 08, 2020 9:31 am
Forum: General Discussion
Topic: Machinist's Level help
Replies: 88
Views: 5526

Re: Machinist's Level help

the bench moving throughout the day - the bubble will go full tilt one way then the other. That's interesting! Only on sunny days? My lathe is in a 20' sea container sitting on little concrete squares in sand. I have no hope. It could be my level configuration, the stuff it's stacked on or the benc...