Search found 2496 matches

by ctwo
Thu Apr 19, 2018 11:00 pm
Forum: General Discussion
Topic: Small File Cleaning
Replies: 6
Views: 126

Re: Small File Cleaning

I've used copper, plastic, and hard wood before. Often I'll try a brass brush first or while I'm looking for copper if I need it. I think I will soak some files in vinegar too.
by ctwo
Thu Apr 19, 2018 10:52 pm
Forum: General Discussion
Topic: Machining Rubber
Replies: 2
Views: 38

Machining Rubber

Friend wanted a bearing pocket machined into each end of some rubber bushings. I only had one snag and one tearout, but no lost parts. I went with a somewhat aggressive back rake on a small boring bar made from square HSS blank and sharp as I could go. What is the general strategy? I was taking abou...
by ctwo
Thu Apr 19, 2018 10:35 pm
Forum: General Discussion
Topic: Machinist Tool Identification
Replies: 3
Views: 54

Re: Machinist Tool Identification

The things that look like c clamps are micrometers used for fine measurements. It looks like you have a few different types that are not that common in small shops. Anything with points, blades, or V's could be worth just a tad more. Sometimes these have additional accessories that are useful, such ...
by ctwo
Thu Apr 19, 2018 12:57 pm
Forum: General Discussion
Topic: grinding a three jaw chuck
Replies: 28
Views: 520

Re: grinding a three jaw chuck

Ah, compromise, just not too much... In another context, someone had a comment about absolute safety, and while ideal, may not be practically achieved. I'd be impressed if you remembered that I bought an import 6" chuck for removable jaws, which is primary on my Logan now. I think it came with a 5" ...
by ctwo
Thu Apr 19, 2018 12:08 am
Forum: General Discussion
Topic: grinding a three jaw chuck
Replies: 28
Views: 520

Re: grinding a three jaw chuck

I think all we really need is a fast enough spindle. ;) Anyway, sure for soft jaw applications and what you are typically working too, then I agree it gets much more critical. Hard fixed jaws already seem to be compromise, and a lot of times I have a gummed up shim in there. There is some motivation...
by ctwo
Wed Apr 18, 2018 1:30 pm
Forum: General Discussion
Topic: grinding a three jaw chuck
Replies: 28
Views: 520

Re: grinding a three jaw chuck

It is not a poor compromise to seek additional information, which is all I posted. I said it was probably the worst way anyway, but I am sure it isn't. It worked more than once...at least to some magical degree that nobody can substantiate, like everything else. Do not take my remarks personally. T...
by ctwo
Tue Apr 17, 2018 11:05 pm
Forum: General Discussion
Topic: grinding a three jaw chuck
Replies: 28
Views: 520

Re: grinding a three jaw chuck

It is not a poor compromise to seek additional information, which is all I posted. I said it was probably the worst way anyway, but I am sure it isn't. It worked more than once...at least to some magical degree that nobody can substantiate, like everything else. I think the 4-hole plate is best, but...
by ctwo
Tue Apr 17, 2018 9:48 am
Forum: General Discussion
Topic: grinding a three jaw chuck
Replies: 28
Views: 520

Re: grinding a three jaw chuck

search google images for lathe chuck grinding or similar to see a host of neat jaw holding ideas...

I stumbled across a post at PM where the guy did the same as me - by using pieces of angle iron squeezed between the jaws (I think that is about the worst way, but it seemed to work for me).
by ctwo
Mon Apr 16, 2018 8:30 pm
Forum: Lathes
Topic: Jet 1236P
Replies: 63
Views: 6184

Re: Jet 1236P

All of my QC gears are a bit pointy... Good advice John.
by ctwo
Tue Apr 03, 2018 11:27 am
Forum: Lathes
Topic: Cross slide and compound dials
Replies: 14
Views: 477

Re: Cross slide and compound dials

How were you going to make 100 graduations without a dividing head? I'm sure there is a way for you to get 125 graduations.
by ctwo
Mon Apr 02, 2018 3:54 pm
Forum: The Junk Drawer
Topic: Rodents like wiring.
Replies: 13
Views: 323

Re: Rodents like wiring.

I noticed just this weekend my valve covers have a candy like glaze over them, and a bunch of nut shells and other tell-tail nuggets.

I think the traps and whatnot need to be just close enough... I think I'll make a bucket trap and see what happens.
by ctwo
Mon Apr 02, 2018 10:34 am
Forum: General Discussion
Topic: DTI vs DI
Replies: 49
Views: 1262

Re: DTI vs DI

Well, it's a nice looking DI anyway - seems more pompous!