Search found 145 matches

by TRX
Sun Sep 16, 2018 9:35 am
Forum: Lathes
Topic: foot brake
Replies: 7
Views: 2160

foot brake

Looking at some of the import 12x36 lathes, one of the variations I've seen is that some come with a "foot brake"; a bar near the floor that looks like the pedal on a metal shear.

There are many things I've wished for when running a lathe, but "foot brake" isn't among them.

What am I missing?
by TRX
Sun Sep 16, 2018 9:28 am
Forum: General Discussion
Topic: spot drill angles
Replies: 8
Views: 1477

For longer drills, I don't have enough quill travel to reach the workpiece with a center drill. edit: I hate it when someone posts while I'm typing in a reply! [tries for Squint of Irritated Disapproval, winds up with nervous tic on eyelid...] I didn't know center drills came that long; all mine are...
by TRX
Sun Sep 16, 2018 8:28 am
Forum: General Discussion
Topic: spot drill angles
Replies: 8
Views: 1477

spot drill angles

So, I decide I need some spot drills, and go off looking for them online. Okay. They are available with 120 degree points, 90 degree points, and some don't say, but from the pictures look like maybe 80 degrees. I looked through my collection of old machining books, and none of them even *mention* sp...
by TRX
Wed Sep 12, 2018 11:38 pm
Forum: Milling Machines
Topic: all-thread studs for clamping
Replies: 18
Views: 5662

all-thread studs for clamping

Back when I worked in a machine shop, one inviolable rule was "absolutely NO threaded rod in place of proper studs." Nobody seemed to know why, but the supervisors were adamant about it. It was such a big deal I reflexively avoid it in my home shop, but... is there any real reason NOT to use all-thr...
by TRX
Wed Sep 12, 2018 11:32 pm
Forum: Milling Machines
Topic: Good Milling Vise
Replies: 12
Views: 4085

Re: Good Milling Vise

Kurt's web site has a "scratch and dent sale" page; they offer blemished-but-accurate vises for a substantial discount, brand new.

I'd already bought a new import vise before I remembered that... [sigh]
by TRX
Sun Sep 09, 2018 11:13 pm
Forum: General Discussion
Topic: gun drill oil feed
Replies: 8
Views: 1336

Re: gun drill oil feed

Green Mountain will sell barrel blanks in common sizes drilled and reamed, but not rifled. Pac-Nor and others will make any weird-Harold ID blank you want.

In this case, it's because I want to do it for myself.
by TRX
Sun Sep 09, 2018 7:24 pm
Forum: General Discussion
Topic: gun drill oil feed
Replies: 8
Views: 1336

So you want to bypass this and use spray mist. Hey, it might work, but how is the drill going to stay rigid ? What is the spray mist flow ? That's why I'm asking. Sterling, which is a long-time gun drill manufacturer, is selling two different air systems now. Their site doesn't mention anything abo...
by TRX
Sun Sep 09, 2018 3:03 pm
Forum: General Discussion
Topic: gun drill oil feed
Replies: 8
Views: 1336

Re: gun drill oil feed

I'm not $1300 worth of interested, but for occasional jobs on a lathe an air mist system would save a lot of hassle. Even though I have the pump for oil, I still need to cut a hole in the chip tray, make an oil tank, and buy several gallons of expensive cutting oil. Since most of the bits came out o...
by TRX
Sun Sep 09, 2018 1:55 pm
Forum: General Discussion
Topic: gun drill oil feed
Replies: 8
Views: 1336

gun drill oil feed

I need to drill some rifle barrels in the relatively near future, and I'm accumulating pieces-parts to do it in my lathe. While looking for oil pump volume and pressure figures, I noticed Sterling is now selling their "Spraymist" system, which uses 100 PSI shop air and some kind of pump that introdu...
by TRX
Wed Sep 05, 2018 8:10 pm
Forum: General Discussion
Topic: Gage blocks
Replies: 54
Views: 8083

Re: Gage blocks

I was tidying up my toolboxes earlier this week, found the sine bar I'd never used, and realized I'd never ordered any gage blocks to use with it. Oooh, shiny!... I was looking at prices online, and then started wondering exactly what I'd use them for. Gage pins I use all the time, blocks... I'm goi...
by TRX
Wed Sep 05, 2018 8:03 pm
Forum: General Discussion
Topic: WTF is wrong with shipping to Canada???!!!
Replies: 25
Views: 3861

I used to ship stuff to Canada. So long ago it was on floppy disks... I sent stuff all over the world - African countries I'd never heard of, the USSR, East Germany, Egypt... the *only* packages that never made it were the ones that went to Canada; about one in four simply vanished after they left t...
by TRX
Thu Jul 05, 2018 9:36 am
Forum: General Discussion
Topic: Keyways
Replies: 15
Views: 3962

Re: Keyways

I used to be in the engine rebuilding business. I can't even guess how many times I had a Woodruff key tilt when trying to install a harmonic balancer. Since many balancers are a press fit as well as keyed, sometimes you don't know there's a problem (the key is behind the timing cover) until the bal...